SPX TopGear H Series, TG H3-32, TG H2-32, TG H6-40, TG H23-65 Instruction Manual

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Page 1

TopGear H

INTERNAL GEAR PUMPS

INSTRUCTION MANUAL

A.0500.351 – IM-TG H/07.02 EN (10/2015)

ORIGI NAL INSTR UCTIONS

READ AND UNDERSTAND THIS MANUAL PRI OR TO OPERATING OR SERVICI NG THI S PRODUCT.

Page 2

EC-Declaration of conformity

Machinery Directive 2006/42/EC, Annex IIA

Manufacturer

SPX Flow Technology Belgium NV Evenbroekveld 2-6 BE-9420 Erpe-Mere Belgium

Herewith we declare that

TopGear H-range Gear Pumps

Types: TG H2-32 TG H3-32 TG H6-40 TG H15-50 TG H23-65 TG H58-80 TG H86-100 TG H185-125 TG H360-150

whether delivered without drive or delivered as an assembly with drive, are in conformity with the relevant provisions of the Machinery Directive 2006/42/EC, Annex I.

Manufacturer Declaration

Machinery Directive 2006/42/EC, Annex IIB

The partly completed pump (Back-Pull-Out unit), member of the product family TopGear H-range gear pumps, is meant to be incorporated into the speciﬁed pump (unit) and may only be put into use after the complete machine, of which the pump under consideration forms part, has been declared to comply with the provisions of the Directive.

Erpe-Mere, 1 April 2014

Gerard Santema General Manager

Page 3

Contents

1.0 Introduction ________________________________________________7

1.1 General ___________________________________________________7

1.2 Reception, handling and storage _______________________________7

1.2.1 Reception _________________________________________________7

1.2.2 Handling __________________________________________________7

1.2.3 Storage ___________________________________________________ 7

1.3 Safety _____________________________________________________8

1.3.1 General ___________________________________________________ 8

1.3.2 Pump units ________________________________________________9

1.3.2.1 Pump unit handling ________________________________________9

1.3.2.2 Installation _______________________________________________9

1.3.2.3 Before commissioning the pump unit _______________________ 10

1.3.2.4 Disassembly/assembly of the coupling guard ________________ 10

1.3.2.5 Name plate – CE Declaration of Conformity _________________ 10

1.4 Technical conventions ______________________________________ 11

2.0 Pump description _________________________________________ 12

2.1 Type designation __________________________________________ 12

3.0 General technical information _______________________________ 15

3.1 Pump standard parts _______________________________________ 15

3.2 Operating principle ________________________________________ 15

3.2.1 Self-priming operation ______________________________________16

3.2.2 Safety relief valve – Working principle _________________________16

3.3 Sound ___________________________________________________ 16

3.4 General performance _______________________________________ 16

3.5 Main characteristics _______________________________________ 17

Maximum viscosity _______________________________________________ 17

3.6 Pressure _________________________________________________ 18

3.7 Sound level ______________________________________________18

3.7.1 Sound level of a pump without drive __________________________18

3.7.2 The sound level of the pump unit _____________________________19

3.7.3 Inﬂuences ________________________________________________19

3.8 Material options ___________________________________________ 20

3.9 Jacket options _____________________________________________ 20

3.10 Internals _________________________________________________ 20

3.10.1 Bush materials ____________________________________________20

3.10.2 Maximum temperature of internals ___________________________21

3.10.3 Operation under hydrodynamic lubrication conditions ____________21

3.10.4 Maximum torque of pump shaft and rotor material combination ____22

3.11 Mass moment of inertia _____________________________________ 22

3.12 Axial and radial clearances __________________________________ 22

3.13 Extra clearances ___________________________________________ 23

3.14 Play between gear teeth ____________________________________ 24

3.15 Maximum size of solid particles ______________________________ 24

3.16 Shaft sealings ____________________________________________ 25

3.16.1 Packed gland _____________________________________________25

3.16.2 Packing ring materials ______________________________________25

3.16.3 Mechanical seals __________________________________________25

3.16.3.1 Mechanical seals according to EN12756 (DIN24960) General information ______________________________________________ 25

3.16.3.2 Cartridge mechanical seals _______________________________ 26

3.16.4 Reverted packing execution for e.g. chocolate application ________28

3.17.5 Triple PTFE lip-seal cartridge ________________________________29

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3.17 Safety relief valve __________________________________________ 30

3.17.1 Pressure _________________________________________________31

3.17.2 Heating __________________________________________________31

3.17.3 Safety relief valve – Relative adjustment _______________________32

3.17.4 Sectional drawings and part lists _____________________________33

3.17.4.1 Single safety relief valve __________________________________ 33

3.17.4.2 Heated spring casing ____________________________________ 34

3.17.4.3 Double safety relief valve _________________________________ 34

3.18 Installation ________________________________________________ 35

3.18.1 General __________________________________________________35

3.18.2 Location _________________________________________________35

3.18.2.1 Short suction line _______________________________________ 35

3.18.2.2 Accessibility ____________________________________________ 35

3.18.2.3 Outdoor installation ______________________________________ 35

3.18.2.4 Indoor installation _______________________________________ 36

3.18.2.5 Stability _______________________________________________ 36

3.18.3 Drives ___________________________________________________36

3.18.3.1 Starting torque _________________________________________ 36

3.18.3.2 Radial load on shaft end __________________________________ 37

3.18.4 Shaft rotation for pump without safety relief valve _______________37

3.18.5 Shaft rotation for pump with safety relief valve __________________38

3.18.6 Suction and discharge pipes ________________________________39

3.18.6.1 Forces and moments ____________________________________ 39

3.18.6.2 Piping _________________________________________________ 39

3.18.6.3 Isolating valves _________________________________________ 40

3.18.6.4 Strainer ________________________________________________ 40

3.18.7 Secondary piping __________________________________________40

3.18.7.1 Drain lines _____________________________________________ 40

3.18.7.2 Heating jackets _________________________________________ 41

3.18.8 Flush/quench media _______________________________________42

3.18.8.1 Packing ________________________________________________ 42

3.18.8.2 Single Mechanical seal ___________________________________ 43

3.18.8.3 Double mechanical seal – Tandem arrangement ______________ 43

3.18.8.4 Double mechanical seal – Back-to-back arrangement _________ 44

3.18.8.5 Cartridge mechanical seal ________________________________ 44

3.18.8.6 Secondary connections __________________________________ 45

3.18.9 Guidelines for assembly ____________________________________47

3.18.9.1 Transport of pump unit ___________________________________ 47

3.18.9.2 Foundation pump unit ____________________________________ 47

3.18.9.3 Variators, Gear box, Gear motors, Motors ___________________ 47

3.18.9.4 Electric motor drive ______________________________________ 48

3.18.9.5 Combustion engines _____________________________________ 48

3.18.9.6 Shaft coupling __________________________________________ 49

3.18.9.7 Guarding of moving parts _________________________________ 49

3.19 Instructions for start-up _____________________________________ 50

3.19.1 General __________________________________________________50

3.19.2 Cleaning the pump ________________________________________50

3.19.2.1 Cleaning suction line_____________________________________ 50

3.19.3 Venting and ﬁlling __________________________________________ 50

3.19.4 Checklist – Initial start-up __________________________________51

3.19.5 Start-up __________________________________________________52

3.19.6 Shut-down _______________________________________________52

3.19.7 Abnormal operation ________________________________________52

3.20 Trouble shooting ___________________________________________ 53

3.20.1 Instructions for re-using and disposal _________________________55

3.20.1.1 Re-use ________________________________________________ 55

3.20.1.2 Disposal _______________________________________________ 55

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3.21 Maintenance instructions ___________________________________ 56

3.21.1 General __________________________________________________56

3.21.2 Preparation _______________________________________________56

3.21.2.1 Surroundings (on site) ___________________________________ 56

3.21.2.2 Tools __________________________________________________ 56

3.21.2.3 Shut-down _____________________________________________ 56

3.21.2.4 Motor safety ____________________________________________ 56

3.21.2.5 Conservation ___________________________________________ 56

3.21.2.6 External cleaning ________________________________________ 57

3.21.2.7 Electrical installation _____________________________________ 57

3.21.2.8 Draining of ﬂuid ________________________________________ 57

3.21.2.9 Fluid circuits ____________________________________________ 58

3.21.3 Speciﬁc components _______________________________________58

3.21.3.1 Nuts and bolts __________________________________________ 58

3.21.3.2 Plastic or rubber components _____________________________ 58

3.21.3.3 Flat gaskets ____________________________________________ 58

3.21.3.4 Filter or suction strainer __________________________________ 58

3.21.3.5 Anti-friction bearings _____________________________________ 58 Recommended greases (Also consult supplier !) ______________________ 58

3.21.3.6 Sleeve bearings _________________________________________ 59

3.21.3.7 Shaft seals _____________________________________________ 60

3.21.4 Front pull-out _____________________________________________62

3.21.5 Back pull-out _____________________________________________62

3.21.6 Clearance adjustment ______________________________________62

3.21.7 Designation of threaded connections _________________________63

3.21.7.1 Threaded connection Rp (example Rp 1/2) __________________ 63

3.21.7.2 Threaded connection G (example G 1/2) ____________________ 63

4.0 Instructions for assembly and disassembly ____________________ 64

4.1 General __________________________________________________ 64

4.2 Tools ____________________________________________________ 64

4.3 Preparation _______________________________________________ 64

4.4 After disassembly __________________________________________ 64

4.5 Anti-friction bearings _______________________________________ 65

4.5.1 General __________________________________________________65

4.5.2 TG H2-32 and TG H3-32 disassembly ________________________ 65

4.5.3 TG H2-32 and TG H3-32 assembly __________________________65

4.5.4 TG H6-40 to TG H360-150 disassembly ______________________ 66

4.5.5 TG H6-40 to TG H360-150 assembly ________________________66

4.6 Relief valve _______________________________________________ 67

4.6.1 Disassembly _____________________________________________67

4.6.2 Assembly ________________________________________________67

4.7 Mechanical seal ___________________________________________ 68

4.7.1 General __________________________________________________68

4.7.2 Preparation _______________________________________________68

4.7.3 Special tools _____________________________________________68

4.7.4 General instructions during assembly _________________________69

4.7.5 Assembly of the stationary seat _____________________________ 69

4.7.6 Assembly of the rotating part ________________________________69

4.7.7 Adjustment of mechanical seal _______________________________70

4.7.7.1 GS – Single mechanical seal ______________________________ 70

4.7.7.2 GG – Double mechanical seal tandem ______________________ 74

4.7.7.3 GD – Double mechanical seal “Back-to-back” _______________ 74

4.7.7.4 GC – Mechanical seal cartridge ___________________________ 76

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5.0 Sectional drawings and part lists ____________________________ 79

5.1 TG H2-32 and TG H3-32 ________________________________________ 79

5.1.1 Hydraulic part _____________________________________________80

5.1.2 Bearing bracket ___________________________________________80

5.1.3 Flange connection options __________________________________80

5.1.4 S-jacket options ___________________________________________81

5.1.4.1 S-jacket on pump cover __________________________________ 81

5.1.4.2 S-jacket around shaft seal ________________________________ 81

5.1.5 Seal options ______________________________________________81

5.1.5.1 Packing rings – PQ ______________________________________ 81

5.1.5.2 Single mechanical seal – GS ______________________________ 82

5.1.5.3 Double mechanical seal tandem – GG ______________________ 82

5.1.5.4 Double mechanical seal back-to-back – GD _________________ 82

5.2 TG H6-40 to TG H360-150 ________________________________ 83

5.2.1 Hydraulic part _________________________________________________ 84

5.2.2 Bearing bracket________________________________________________ 84

5.2.3 Flange connection options __________________________________85

5.2.4 Jacket options _____________________________________________86

5.2.4.1 S-jacket on pump cover __________________________________ 86

5.2.4.2 S-jacket around shaft seal ________________________________ 86

5.2.4.3 T-jackets with ﬂange connections on pump cover ____________ 87

5.2.4.4 T-jackes with ﬂange connections around shaft seal ___________ 88

5.2.5 Shaft seal options _________________________________________89

5.2.5.1 Packing rings PQ with lantern ring ______________________________________________________ 89

5.2.5.2 Packing rings PO without lantern ring _______________________ 89

5.2.5.3 Single mechanical seal – GS ______________________________ 89

5.2.5.4 Cartridge mechanical seal – GC ___________________________ 90

5.2.5.5 Double mechanical seal tandem – GG ______________________ 90

5.2.5.6 Double mechanical seal back-to-back – GD _________________ 90

5.2.5.7 Cartridge mecanical seal - LCT TV (LCT XX) _________________ 91

5.2.5.7 Reverted packing – Chocolate version _____________________ 92

6.0 Dimensional drawings _____________________________________ 93

6.1 Standard pump ___________________________________________ 93

6.1.1 TG H2-32 to TG H3-32 ____________________________________93

6.1.2 TG H6-40 to TG H360-150 _________________________________94

6.2 Flange connections ________________________________________ 95

6.2.1 TG H2-32 to TG H3-32 ____________________________________95

6.2.2 TG H6-40 to TG H360-150 _________________________________95

6.3 Jackets __________________________________________________ 96

6.3.1 TG H2-32 and TG H3-32 ___________________________________96

6.3.2 TG H6-40 to TG H360-150 _________________________________97

6.4 Safety relief valves ___________________________________________________ 98

6.4.1 Single safety relief valve ____________________________________98

6.4.2 Double safety relief valve ____________________________________99

6.4.3 Heated safety relief valve _________________________________ 100

6.5 Bracket support __________________________________________ 101

6.6 Weights – Mass __________________________________________ 101

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1.0 Introduction

1.1 General

This instruction manual contains necessary information on the TopGear pumps and must be read

carefully before installation, service and maintenance. The manual must be kept easily accessible to the operator.

Important!

The pump must not be used for other purposes than recommended and quoted for without consulting your local supplier.

Liquids not suitable for the pump can cause damages to the pump unit, with a risk of personal injury.

1.2 Reception, handling and storage

1.2.1 Reception

Remove all packing materials immediately after delivery. Check the consignment for damage

immediately on arrival and make sure that the name plate/type designation is in accordance with the packing slip and your order.

In case of damage and/or missing parts, a report should be drawn up and presented to the carrier at

once. Notify your local supplier.

All pumps have the serial number

stamped on a name plate. This number should be stated in all correspondence with your local supplier. The ﬁrst digits of the serial number indicate the year of production.

www.johnson-pump.com / www.spx.com

SPX Flow Technology Belgium NV Evenbroekveld 2-6, BE-9420 Erpe-Mere

1.2.2 Handling

Check the mass (weight) of the pump unit. All parts weighing more than 20 kg must be lifted using

lifting slings and suitable lifting devices, e.g. overhead crane or industrial truck. See section 6.6 Weights – Mass.

Always use two or more lifting slings. Make sure

1.2.3 Storage

If the pump is not commissioned immediately, the shaft should be turned a full turn once every week.

they are secured in such a way as to prevent them from slipping. The pump unit should be in a straight fashion.

This ensures a proper distribution of the conservating oil.

Never lift the pump unit with only two fastening points. Incorrect lift can cause personal injury and/or damage to the pump unit.

A.0500.351 – IM-TGH/07.02 EN (10/2015)

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1.3 Safety

1.3.1 General

Important! The pump must not be used for other purposes than recommended and quoted for without

consulting your local supplier.

A pump must always be installed and used in accordance with existing national and local sanitary

and safety regulations and laws.

When ATEX pump/pump unit is supplied, the separate ATEX manual must be considered

• Always wear suitable safety clothing when handling the pump.

• Anchor the pump properly before start-up to avoid personal injury and/or damage to the pump unit.

• Install shut-off valves on both sides of the pump to be able to shut off the inlet and outlet before service and maintenance. Check to see that the pump can be drained without injuring anyone and without contaminating the environment or nearby equipment.

• Make sure that all movable parts are properly covered to avoid personal injury.

• All electrical installation work must be carried out by authorized personnel in accordance with EN60204-1 and/or local regulations. Install a lockable circuit breaker to avoid inadvertent starting. Protect the motor and other electrical equipment from overloads with suitable equipment. The electric motors must be supplied with ample cooling air.

In environments where there is risk of explosion, motors classiﬁed as explosion-safe must be

used, along with special safety devices. Check with the governmental agency responsible for such precautions.

• Improper installation can cause fatal injuries.

• Dust, liquids and gases that can cause overheating, short circuits, corrosion damage and ﬁre must be kept away from motors and other exposed equipment.

• If the pump handles liquids hazardous for person or environment, some sort of container must be installed into which leakage can be led. All (possible) leakage should be collected to avoid contamination of the environment.

• Keep arrows and other signs visible on the pump.

• If the surface temperature of the system or parts of the system exceeds 60°C, these areas must be marked with warning text reading ”Hot surface” to avoid burns.

• The pump unit must not be exposed to rapid temperature changes of the liquid without prior pre-

heating/pre-cooling. Big temperature changes can cause crack formation or explosion, which in turn can entail severe personal injuries.

• The pump must not operate above stated performance. See section 3.5 Main characteristics.

• Before intervening in the pump/system, the power must be shut off and the starting device be locked. When intervening in the pump unit, follow the instructions for disassembly/assembly, chapter 4.0. If the instructions are not followed, the pump or parts of the pump can be damaged. It will also invalidate the warranty.

• Gear pumps may never run completely dry. Dry running produces heat and can cause damage to

internal parts such as bush bearings and shaft seal. When dry running is required, the pump has e.g. to be run a short time with liquid supply.

Note! A small quantity of liquid should remain in the pump to ensure lubrication of internal parts.

If there is a risk for dry running for a longer period, install a suitable dry running protection. Consult your local supplier.

• If the pump does not function satisfactorily, contact your local supplier.

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1.3.2 Pump units

1.3.2.1 Pump unit handling

Use an overhead crane, forklift or other suitable lifting device.

Secure lifting slings around the front part of the pump and the back part of the motor. Make sure that the load is balanced before attempting the lift. NB! Always use two lifting slings.

If there are lifting rings on both the pump and the motor the slings may be fastened to these.

NB! Always use two lifting slings.

Warning

Never lift the pump unit with only one fastening point. Incorrect lifts can result in personal injury and/or damage to the unit.

1.3.2.2 Installation

All pump units should be equipped with a locking safety switch to prevent accidental start during

installation, maintenance or other work on the unit.

Warning

The safety switch must be turned to off and locked before any work is carried out on the pump unit. Accidental start can cause serious personal injury.

The pump unit must be mounted on a level surface and either be bolted to the foundation or be ﬁtted

with rubber-clad feet.

The pipe connections to the pump must be stress-free mounted, securely fastened to the pump and

well supported. Incorrectly ﬁtted pipe can damage the pump and the system.

Warning

Electric motors must be installed by authorized personnel in accordance with EN60204-1. Faulty electrical installation can cause the pump unit and system to be electriﬁed, which can lead to fatal injuries.

Electric motors must be supplied with adequate cooling ventilation. Electric motors must not be

enclosed in airtight cabinets, hoods etc.

Dust, liquids and gases which can cause overheating and ﬁre must be diverted away from the

motor.

Warning

Pump units to be installed in potentially explosive environments must be ﬁtted with an Ex-class (explosion safe) motor. Sparks caused by static electricity can give shocks and ignite explosions. Make sure that the pump and system are properly grounded. Check with the proper authorities for the existing regulations. A faulty installation can lead to fatal injuries.

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1.3.2.3 Before commissioning the pump unit

Read the pump’s operating and safety manual. Make sure that the installation has been correctly

carried out according to the relevant pump’s manual.

Check the alignment of the pump and motor shafts. The alignment may have been altered during

transport, lifting and mounting of the pump unit. For safe disassembly of the coupling guard see below: Disassembly/assembly of the coupling guard.

Warning

The pump unit must not be used with other liquids than those for which it was recommended and sold. If there are any uncertainties contact your sales representative. Liquids, for which the pump is not appropriate, can damage the pump and other parts of the unit as well as cause personal injury.

1.3.2.4 Disassembly/assembly of the coupling guard

The coupling guard is a ﬁxed guard to protect the users and operator from fastening and injuring

themselves on the rotating shaft/shaft coupling. The pump unit is supplied with factory mounted guards with certiﬁed maximum gaps in accordance with standard DIN EN ISO 13857.

Warning

The coupling guard must never be removed during operation. The locking safety switch must be turned to off and locked. The coupling guard must always be reassembled after it has been removed. Make sure to also reassemble any extra protective covers. There is a risk of personal injury if the coupling guard is incorrectly mounted.

a) Turn off and lock the power switch.

b) Disassemble the coupling guard.

c) Complete the work.

d) Reassemble the coupling guard and any other protective covers. Make sure that the screws are

properly tightened.

1.3.2.5 Name plate – CE Declaration of Conformity

Always quote the serial number on the name plate together with questions concerning the pump unit,

installation, maintenance etc.

When changing the operating conditions of the pump please contact your supplier to ensure a safe

and reliable working pump.

This also applies to modiﬁcations on a larger scale, such as a change of motor or pump on an

existing pump unit.

SPX Flow Technology Belgium NV Evenbroekveld 2-6 BE-9420 Erpe-Mere www.johnson-pump.com / www.spx.com

A.0500.351 – IM-TGH/07.02 EN (10/2015)

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1.4 Technical conventions

Quantity Symbol Unit

Dynamic viscosity µ mPa.s = cP (Centipoise)

ρ = density

Kinematic viscosity ν =

Note! In this manual only dynamic viscosity is used.

Pressure

Note! In this manual, unless otherwise speciﬁed - pressure is relative pressure [bar].

Net Positive Suction Head

ν = kinematic viscosity

p [bar]

∆p Differential pressure = [bar]

NPSHa

NPSHr

Maximum pressure at discharge ﬂange (design pressure) = [bar]

Net Positive Suction Head is the total absolute inlet pressure at the pump suction connection, minus the vapour pressure of the pumped liquid. NPSHa is expressed in meter liquid column. It is the responsibility of the user to determine the NPSHa value.

Net Positive Suction Head Required is the NPSH determined, after testing and calculation, by the pump manufacturer to avoid performance impairment due to cavitation within the pump at rate capacity. The NPSHr is measured at the suction ﬂange, at the point where the capacity drop results in a pressure loss of at least 4%.

[kg]

dm³

[

mm²

= cSt (Centistokes)

]

Note! In this manual, unless otherwise speciﬁed, NPSH = NPSHr

When selecting a pump, ensure that NPSHa is at least 1 m higher than the NPSHr.

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TG H 58-80 R 2 S S BR 5 B R5 PQTC

1 2 3 4 5 6 7 8 9 10 11 12 13

TG H 360-150 FD R 5 O O UR 6 U R8 GS WV

1 2 3 4 5 6 7 8 9 10 11 12 13

2.0 Pump description

TopGear H-pumps are rotary positive displacement pumps with internal gear. They are made of

stainless steel, nodular iron or cast steel. TGH-pumps are assembled from modular elements, which allows a variety of constructions: different shaft sealings (packing and/or mechanical seal), heating/ cooling jackets (steam or thermal oil), several sleeve bearings, gear and shaft materials and mounted relief valve.

2.1 Type designation

The pump properties are encoded in the following type indication, which is to be found on the

nameplate.

Example:

1. Pump family name

TG = TopGear

2. Pump range name

H = High demanding applications

3. Hydraulics indicated with displacement volume per 100 revolution (in dm3) and nominal port diameter (in mm)

TG H2-32 TG H3-32 TG H6-40 TG H15-50 TG H23-65 TG H58-80 TG H86-100 TG H185-125 TG H360-150

4. Application

Non-food FD Food

5. Pump material

R Pump in stainless steel S Pump in carbon steel N Pump in nodular iron

6. Port connection type

1 Thread connections 2 PN25 ﬂanges 3 PN20 ﬂanges to ANSI 150 lbs 4 PN50 ﬂanges to ANSI 300 lbs 5 PN16 ﬂanges to DIN 2533

7. Jacket options for pump cover

O Pump cover without jackets S Pump cover with jacket and thread connection T Pump cover with jacket and ﬂange connection

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8. Jacket options around shaft seal

O Shaft seal without jackets S Shaft seal with jacket and thread connection T Shaft seal with jacket and ﬂange connection

9. Idler bush and idler materials

SG Idler bush in hardened steel with idler in iron CG Idler bush in carbon with idler in iron BG Idler bush in bronze with idler in iron HG Idler bush in ceramic with idler in iron

SS Idler bush in hardened steel with idler in steel CS Idler bush in carbon with idler in steel BS Idler bush in bronze with idler in steel HS Idler bush in ceramic with idler in steel US Idler bush in hard metal with idler in steel

BR Idler bush in bronze with idler in stainless steel CR Idler bush in carbon with idler in stainless steel HR Idler bush in ceramic with idler in stainless steel UR Idler bush in hard metal with idler in stainless steel

10. Idler pin materials

2 Idler pin in hardened steel 5 Idler pin in nitrided stainless steel 6 Idler pin in hard coated stainless steel

11. Bush on shaft materials

S Bush in hardened steel

C Bush in carbon H Bush in ceramic U Bush in hard metal B Bush in bronze

12. Rotor and shaft materials

G2 Rotor in iron and shaft in hardened steel G5 Rotor in iron and shaft in nitrited stainless steel G6 Rotor in iron and shaft in hard coated stainless steel for packing G8 Rotor in iron and shaft in hard coated stainless steel for mechanical seal

N2 Rotor in nitrited nodular iron and shaft in hardened steel N5 Rotor in nitrited nodular iron and shaft in nitrited stainless steel N6 Rotor in nitrited nodular iron and shaft in hard coated stainless steel for packing N8 Rotor in nitrited nodular iron and shaft in hard coated stainless steel for mechanical seal

R2 Rotor in stainless steel and shaft in hardened steel R5 Rotor in stainless steel and shaft in nitrited stainless steel R6 Rotor in stainless steel and shaft in hard coated stainless steel for packing R8 Rotor in stainless steel and shaft in hard coated stainless steel for mechanical seal

13. Shaft seal arrangements

Packing version without lantern ring PO TC PTFE graphited packing rings

PO AW Aramide-white packing rings PO CC Graphite ﬁbre packing rings PO XX Packing version parts – rings on request

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TG H 58-80 R 2 S S BR 5 B R5 PQTC

1 2 3 4 5 6 7 8 9 10 11 12 13

TG H 360-150 FD R 5 O O UR 6 U R8 GS WV

1 2 3 4 5 6 7 8 9 10 11 12 13

Example:

13. Shaft seal arrangements (cont’d)

Packing version with lantern ring PQ TC PTFE graphited packing rings

PQ AW Aramide-white packing rings PQ CC Graphite ﬁbre packing rings PQ XX Packing version parts – rings on request

Reverted packing version; chocolate execution PR TC Packing rings PTFE graphited

PR AW Packing rings aramide-white PR XX Packing version parts – rings on request

Single mechanical seal Burgmann type MG12 to be used with set ring GS AV Single mechanical seal Burgmann MG12; Carbon/SiC/FPM (Fluorocarbon)

GS WV Single mechanical seal Burgmann MG12; SiC/SiC/FPM (Fluorocarbon)

Single mechanical seal Burgmann type M7N GS HV Single mechanical seal Burgmann M7N; SiC/Carbon/FPM (Fluorocarbon)

GS HT Single mechanical seal Burgmann M7N; SiC/Carbon/PTFE-wrapped GS WV Single mechanical seal Burgmann M7N; SiC/SiC/FPM (Fluorocarbon) GS WT Single mechanical seal Burgmann M7N; SiC/SiC/PTFE-FFKM Remark: EPDM and FFKM (Chemraz®) O-ring sets available on request

Single mechanical seal option without mechanical seal

GS XX Single seal parts – seal on request

Single mechanical seal cartridge GCT WV Cartex TN3 (with throttle bush); SiC/SiC/FPM (Fluorocarbon) GCT WT Cartex TN3 (with throttle bush); SiC/SiC/PTFE GCQ WV Cartex QN3 (with lip ring); SiC/SiC/FPM (Fluorocarbon) GCQ WT Cartex QN3 (with lip ring); SiC/SiC/PTFE Remark: EPDM and FFKM (Chemraz®) O-ring sets available on request

Double mechanical seal cartridge GCD WV BV Cartex DN3; SiC/SiC/FPM (Fluorocarbon)-SiC/Carbon/FPM (Fluorocarbon) GCD WT BV Cartex DN3; SiC/SiC/PTFE-SiC/Carbon/FPM (Fluorocarbon) Remark: EPDM and FFKM (Chemraz®) O-ring sets available on request

GCX XX XX Cartridge seal version without cartridge seal

(cartridge seal on request)

GG XX XX Double mechanical seal tandem version; without mechanical seals

(seals on request)

GD XX XX Double mechanical seal back-to-back version; without mechanical seals

(seals on request)

Triple PTFE lip-seal cartridge

LCT TV Cartridge triple lip seal; PTFE seals / FKM Viton (Fluoroelastomer) o-rings LCT XX Cartridge triple lip seal; PTFE seals / no o-rings)

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3.0 General technical information

3.1 Pump standard parts

Idler pin

Pump cover

Top cover

Intermediate casing

Pump shaft

Bearing bracket

Rotor

Idler gear

3.2 Operating principle

Pump casing

As the rotor and idler gear unmesh, an underpressure is created and the liquid enters the new created cavities.

Liquid is transported in sealed pockets to the discharge side. The walls of the pump casing and the crescent are creating a seal and separate suction from discharge side.

The rotor and idler gear mesh and liquid is being pushed into the discharge line.

Reversing the shaft rotation will reverse the ﬂow through the pump as well.

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3.2.1 Self-priming operation

TopGear pumps are self-priming when sufﬁcient liquid is present in the pump to ﬁll up the clearances and the dead spaces between the teeth. (For self-priming operation see also section

3.18.6.2 Piping).

3.2.2 Safety relief valve – Working principle

The positive displacement principle requires the installation of a safety relief valve protecting the pump against overpressure. It can be installed on the pump or in the installation.

This safety relief valve limits the differential pressure (∆p) between suction and discharge, not the maximum pressure within the installation.

For example, as media cannot escape when the discharge side of the pump is obstructed, an over-pressure may cause severe damage to the pump. The safety relief valve provides an escape path, rerouting the media back to the suction side when reaching a speciﬁed pressure level.

• The safety relief valve protects the pump against over-pressure only in one ﬂow direction. The safety relief valve will not provide protection against over-pressure when the pump rotates in the opposite direction. When the pump is used in both directions, a double safety relief valve is required.

• An open safety relief valve indicates that the installation is not functioning properly. The pump must be shut down at once. Find and solve the problem before restarting the pump.

• When the safety relief valve is not installed on the pump, other protections against over-pressure have to be provided.

• Note! Do not use the safety relief valve as a ﬂow regulator. The liquid will circulate only through

the pump and will heat up quickly.

Contact your local supplier if a ﬂow regulator is required.

3.3 Sound

TopGear pumps are rotary displacement pumps. Because of the contact between internal parts (rotor/idler), pressure variations etc. they produce more noise than for example centrifugal pumps. Also the sound coming from drive and installation must be taken into consideration. As the sound level at the operating area may exceed 85 dB(A), ear protection must be worn. See also section 3.7 Sound level.

3.4 General performance

Important! The pump is calculated for the liquid transport as described in the quotation. Contact your local supplier if one or several application parameters change.

Liquids not suitable for the pump can cause damages to the pump unit and imply risk of personal injury.

Correct application requires that consideration be given to all of the following: Product name, concentration and density. Product viscosity, product particles (size, hardness, concentration, shape), product purity, product temperature, inlet and outlet pressure, RPM, etc.

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3.5 Main characteristics

The pump size is designated by the displacement volume of 100 revolutions expressed in litres (or dm3) but rounded followed by the nominal port diameter expressed in millimetres.

TG H pump size

2-32

3-32

6-40

15-50

23-65

58-80

86-100 100 75 175 85.8 960 960 13.7 49.4 8.8 1.7 16 20 30

185-125

360-150 150 125 280 360 600 36 130 8.8 2.0 16 20 30

(mm)B(mm)D(mm)

32 13.5 65 1.83 1800 0.5 2.0 6.1 0.7 16 20 30

32 22 65 2.99 1800 0.9 3.2 6.1 1.1 16 20 30

40 28 80 5.8 1800 1.7 6.3 7.5 1.4 16 20 30

50 40 100 14.5 1500 3.6 13.1 7.9 1.8 16 20 30

65 47 115 22.7 1500 5.7 20.4 9.0 1.7 16 20 30

80 60 160 57.6 1050 10.1 36.3 8.8 2.0 16 20 30

125 100 224 185 750 23 83 8.8 1.9 16 20 30

Vs-100

(dm3)

n.max

n.mot

(min-1)

Q.th

(min-1)

(l/s)

(m3/h)

1450 0.4 1.6 4.9 0.5

1450 0.7 2.6 4.9 0.9

1450 1.4 5.0 6.1 1.1

1450 3.5 12.6 7.6 1.8

1450 5.5 19.7 8.7 1.7

960 9.2 33.2 8.0 1.8

725 22 80 8.5 1.8

Q.th

v.u

(m/s)

v.i

(m/s)

∆p

(bar)

p.maw

(bar)

Legend

d : port diameter (inlet and outlet port) B : width of idler gear and length of rotor teeth D : peripheral diameter of rotor (outside diameter) Vs-100 : displaced volume pro 100 revolutions n.max : maximum allowable shaft speed in rpm n.mot : normal speed of direct drive electric motor (at 50Hz frequency) Q.th : theoretical capacity without slip at differential pressure = 0 bar v.u : peripheral velocity of rotor v.i : velocity of liquid in the ports at Qth (inlet and outlet port) ∆p : maximum working pressure = differential pressure p.maw : maximum allowable working pressure = design pressure p.test : hydrostatic test pressure

p.test

(bar)

Maximum viscosity

Shaft sealing type

Packed gland PO, PQ, PR 80 000 Double mechanical seal

Back-to-back – GD and GCD pressurized 80 000 Tandem – GG and GCD not pressurized 5 000

Single mechanical seal

GS with Burgmann MG12 3 000 GS with Burgmann M7N 5 000 GCQ and GCT cartridge 5 000 Triple PTFE lip-seal 80 000

*) Remark: Figures are for Newtonian liquids at operating temperature. The maximum allowable viscosity

between the sliding faces of the mechanical seal depends on nature of liquid (Newtonian, plastic etc.), the sliding speed of the seal faces and the mechanical seal construction.

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Maximum viscosity

(mPa.s) *)

Page 18

Hydrostatic test pressure of casing

Allowable working pressure

design pressure of casing

Differential pressure

working pressure

3.6 Pressure

For performance on pressure, three kinds of pressures must be considered:

Differential pressure or working pressure (p) is the pressure on which the pump normally operates. The maximum differential pressure for all TopGear H-range pumps is 16 bar.

Maximum allowable working pressure (p.m) is the pressure on which the pump casing is designed and that can been achieved occasionally when the operating pressure rises over the normal operating pressure e.g. when the pump run with open relief valve. In the TopGear H-range the design pressure is 20 bar i.e. 4 bar higher than the maximum differential pressure. It ensures higher safety such as is required in API676 for rotary positive displacement pumps.

The hydrostatic test pressure = 30 bar is the pressure on which the pump casing is tested. The test pressure is 1.5 times the design pressure.

Following ﬁgure gives a graphical presentation of the several kind of pressures.

30 bar

20 bar

16 bar

3.7 Sound level

3.7.1 Sound level of a pump without drive

Sound pressure level (LpA) The following table gives an overview of the A-weightened sound pressure level, L a pump without drive, measured according to ISO3744 and expressed in decibels dB(A). The reference sound pressure is 20µPa.

The values depend on the position from where one measures and were therefore measured at the front of the pump, at distance of 1 meter from the pump cover and were corrected for background noise and reﬂections.

The values listed are the highest measured values under following operating conditions.

• Working pressure: up to 10 bar.

• Pumped medium: water, viscosity = 1 mPa.s

• —% n

TG H pump size n

2-32 1800 51 62 68 72 9 3-32 1800 53 65 72 76 9 6-40 1800 57 68 76 80 9 15-50 1500 61 72 79 83 9 23-65 1500 63 75 81 85 10 58-80 1050 67 79 85 89 10 86-100 960 69 80 86 90 11 185-125 750 71 82 87 91 11 360-150 600 72 83 89 92 11

= — % maximum shaft speed

max

(min-1)

max

25% n

50%n

max

Lpa (dB(A))

75%n

max

emitted by

100%n

max

Ls (dB(A))

max

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Sound power level (LWA) The sound power LW is the power emitted by the pump as sound waves and is used to compare sound levels of machines. It is the sound pressure Lp that act on a surrounding surface at distance of 1 meter.

LWA = LpA + Ls

The A-weightened sound power level LWA is also expressed in decibels dB(A). The reference sound power is 1 pW (= 10 distance of 1 metre from the pump, expressed in dB(A) and is listed in the last column of above table.

3.7.2 The sound level of the pump unit

The sound level of the drive (motor, transmission, . . .) must be added to the sound level of the pump itself to determine the total sound level of the pump unit. The sum of several sound levels must be calculated logarithmically.

For a quick determination of the total sound level the following table can be used:

L1–L2 0 1 2 3 4 5 6 L[f(L1–L2)] 3.0 2.5 2.0 1.7 1.4 1.2 1.0

= L1 + L

total

where L L1 : the highest sound level L2 : the lowest sound level L

corrected

: the total sound level of the pump unit

total

: term, depending on the difference between both sound levels

corrected

-12

W). LS is the logarithm of the surrounding surface at

For more than two values this method can be repeated.

Example: Drive unit : L1 = 79 dB(A) Pump : L2 = 75 dB(A) Correction : L1 - L2 = 4 dB(A) According to the table : L

3.7.3 Inﬂuences

The real sound level of the pump unit can for several reasons deviate from the values listed in the tables above.

• Noise production decreases when pumping high viscosity liquids due to better lubricating and damping properties. Moreover the resistance torque of the idler is increasing due to higher liquid friction which results in lower vibration amplitude.

• Noise production increases when pumping low viscosity liquids combined with low working pressure because the idler can move freely (lower charge, lower liquid friction) and the liquid does not damp much.

• Vibrations in piping, vibrating of the base plate etc. will make the installation produce more noise.

= 1.4 dB(A)

corrected

= 79 + 1.4 = 80.4 dB(A)

total

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3.8 Material options

Overall temperature

The TG H range is designed for high temperatures. The overall temperatures for selected casing materials are shown in below table.

TG H pump size

2-32 3-32 6-40 15-50 23-65 58-80 86-100 185-125 360-150

Stainless steel (R) Carbon steel (S) Nodular iron (N) Stainless steel (R) Carbon steel (S) Nodular iron (N)

Minimum allowable temperature (°C) Maximum allowable temperature (°C)

–40 – – +200 – –

–40 –30

Remarks:

1. Maximum temperature of size TG H2-32 and TG H3-32 is limited to 200°C due to ball bearings type 2RS.

2. Temperature limits must be considered depending on the used materials for bearing bushes and shaft sealing.

3.9 Jacket options

S-jackets are designed for use with saturated steam or with non-dangerous media. They are provided with cylindrical threaded connections according to ISO 228-I.

Maximum temperature: 200°C Maximum pressure: 10 bar

Notice that the maximum pressure of 10 bar will be the limiting factor for use with saturated steam. Saturated steam at 10 bar gives a temperature of 180°C.

Casing materials Casing materials

–

–25 +300

+250 +300

–

T-jackets are designed for use with thermal oil and apply to the DIN4754 safety standard for thermal oil transfer. This DIN standard speciﬁes ﬂange connections for temperature from 50°C upwards and jackets of ductile material for temperature from 200°C upwards. Both are provided in the T-design. T-jackets could also be used for over heated steam or more dangerous media. The ﬂanges have a special shape with welding neck based on PN16 dimensions.

Maximum temperature: 300°C Maximum pressure at 300°C: 12 bar

3.10 Internals

3.10.1 Bush materials

Overview of bush materials and application ﬁeld

Material Code S C B H U

Material Steel Carbon Bronze Ceramic Hard metal

Hydrodynamical lubrication

Corrosive resistance Fair Good Fair Excellent Good Abrasive resistance Slight None None Good Good Dry running allowed No Yes Moderate No No Sensitive to thermal choc No No No Yes dT<90°C No Sensitive to blistering in oil No > 180°C No No No Oil aging No No > 150°C No No Food processing allowed Yes No (antimony) No (lead) No (traceability) Ye s

if yes to maximum working pressure = 16 bar if no 6 bar (*) 10 bar (*) 6 bar (*) 6 bar (*) 10 bar (*)

(*) These are not absolute ﬁgures. Higher or lower values possible in function of the application, expected lifetime etc

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3.10.2 Maximum temperature of internals

For some material combinations the general temperature performances must be limited. The maximum allowable working temperature of internals depends on the combination of used materials and their thermal expansions and the interference ﬁt to hold the bearing bush ﬁxed.

• Some bush bearings have an extra locking screw. In this case the maximum allowable temperature is based on the most probable interference ﬁt.

• In case the bearing bush has no locking screw because material and construction do not allow concentrated stress the maximum allowable temperature is based on the minimum interference ﬁt.

Maximum temperature (°C) of idler bush bearing material and idler material combinations

Bush and Idler materials (°C)

TG H pump size

2-32 - - - - - - - - - 200 200 200 200 3-32 - - - - - - - - - 200 200 200 200 6-40 300 280 240 240 300 250 300 200 240 300 250 200 240 15-50 300 280 240 240 300 250 300 200 240 300 250 200 240 23-65 300 300 250 240 300 280 300 200 240 300 280 200 240 58-80 300 300 250 240 300 280 300 200 240 300 280 200 240 86-100 300 300 250 280 300 280 300 240 240 300 280 240 240 185-125 300 300 250 300 300 280 300 260 240 300 280 260 240 360-150 300 300 250 300 300 280 300 260 240 300 280 260 240

*) Remark: Hardness relief of steel bush (S) and hardened steel pin (2) above 260°C

Cast iron idler G Steel idler S Stainless steel idler R

SG*) CG BG HG SS*) CS BS HS US BR CR HR UR

Maximum temperature (°C) of rotor bush bearing material and intermediate casing material combinations

Bush on shaft materials (°C)

Pump size TG H

2-32 200 200 200 200 - - - - - - - - - 3-32 200 200 200 200 - - - - - - - - - 6-40 250 150 240 250 300 280 260 240 300 - - - - 15-50 250 150 240 250 300 280 280 240 300 300 300 300 240 300 23-65 250 150 240 250 300 280 280 240 300 300 300 300 240 300 58-80 250 150 240 250 300 280 280 240 300 300 300 300 240 300 86-100 250 150 240 250 300 280 280 240 300 300 300 300 240 300 185-125 250 150 240 250 300 280 280 240 300 300 300 300 240 300 360-150 250 150 240 250 300 280 280 240 300 300 300 300 240 300

Casing R – Stainless steel Casing S – Steel Casing N – Nodular iron

C H U B S*) C H U B S*) C H U B

*) Remark: Hardness relief of steel bush (S) and hardened steel shaft (2) above 260°C

3.10.3 Operation under hydrodynamic lubrication conditions

Hydrodynamic lubrication could be important criteria for bush material selection. If the bush bearings are running under the condition of hydrodynamic lubrication there is no more material contact between bush and pin or shaft and the lifetime cycle is increased importantly. If there is no condition for hydrodynamic lubrication, the bush bearings make material contact with pin or shaft and the wear of these parts is to be considered.

The condition of hydrodynamic lubrication is fulﬁlled with the following equation:

Viscosity * shaft speed / diff.pressure ≥ K.hyd

with: viscosity [mPa.s] shaft speed [rpm] diff.pressure [bar] K.hyd = design constant for each pump size.

TG H pump size K.hyd

2-32 6000 3-32 7500 6-40 5500 15-50 6250 23-65 4000 58-80 3750 86-100 3600 185-125 2500 360-150 2000

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3.10.4 Maximum torque of pump shaft and rotor material combination

The maximum allowable torque is a constant independent from speed and may not be exceeded to avoid damaging the pump i.e. pump shaft, rotor/shaft ﬁtting and rotor teeth.

Mn (nominal torque) in Nm Md (starting torque) in Nm

TG H pump size

2-32 21 – 31 29 – 43 3-32 21 – 31 29 – 43 6-40 67 67 67 94 94 94 15-50 255 255 255 360 360 360 23-65 255 255 255 360 360 360 58-80 390 390 390 550 550 550 86-100 600 600 600 840 840 840 185-125 1300 1300 1300 1820 1820 1820 360-150 2000 2000 2000 2800 2800 2800

G Rotor

Iron

N Rotor Nitrided nodular

iron

R Rotor

Stainless

steel

G Rotor

Iron

N Rotor Nitrided nodular

iron

R Rotor

Stainless

steel

The nominal torque (Mn) has to be checked for the normal working conditions and the installed nominal motor torque (Mn.motor) but converted to the pump shaft speed.

The starting torque (Md) may not be exceeded during start up. Use this value for the maximum torque set of a torque limiter if installed on the pump shaft.

3.11 Mass moment of inertia

TG H 2-32 3-32 6-40 15-50 23-65 58-80 86-100 185-125 360-150

J (10-3 x kgm2) 0.25 0.30 0.75 3.5 6.8 32 54 200 570

3.12 Axial and radial clearances

TG H 2-32 3-32 6-40 15-50 23-65 58-80 86-100 185-125 360-150

Minimum (µm) 80 80 90 120 125 150 165 190 225 Maximum (µm) 134 134 160 200 215 250 275 320 375

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3.13 Extra clearances

To indicate required clearances a code of 4 digits, xxxx, is given on the order. These digits refer to the following clearance classes:

C0 = Axial clearance between rotor and pump cover set at minimum C1 = Standard clearance (not indicated because standard) C2 = ~2 x standard clearance C3 = 3 x standard clearance

The 4 digits indicate which clearance class is set for which part of the pump, e.g.: code 2 3 3 2

2 3 3 2

Diametral clearance between idler pin and idler bush

in case of an idler bush in a material other than bronze:

in case of an idler bush in bronze:

Radial clearance between idler and crescent of pump cover

by extra machining of the outside diameter of the idler (for code 2 or 3)

Radial clearance between rotor and pump casing

by extra machining of the outside diameter of the rotor (for code 2 or 3)

The code ‘‘1’’ always stands for ‘‘normal’’ and no special action is considered. The indicated numbers in the tables below are average values in microns (µm).

Radial clearance on rotor, idler outside diameter – Axial clearance on pump cover

Pump size

Code rotor 1xxx 1xxx 2xxx 3xxx Code idler x1xx x1xx x2xx x3xx Code pump cover assembly xxx0 xxx1 xxx2 xxx3 TG H2-25 35 107 235 320 TG H3-32 35 107 235 320 TG H6-40 40 125 275 375 TG H15-50 52 160 350 480 TG H23-65 56 170 375 510 TG H58-80 66 200 440 600 TG H86-100 72 220 480 660 TG H185-125 85 255 560 765 TG H360-150 100 300 660 900

pumpcover set minimum

Axial clearance between rotor and pump cover

can be adjusted (see "3.22.6 Clearance adjustment")

special idler pin (2 or 6 material) with adapted diameter (for code 2 or 3)

special bronze idler bush with adapted inside diameter (for code Y or Z)

C0 (µm)

axial clearance

C1 (µm) normal

C2 (µm)

= 2.2 x C1

C3 (µm)

= 3 x C1

Diametral clearance on pin / idler bearing

Pump size

Code for adapted 2 or 6 material pin (2 or 3) xx1x xx2x xx3x Code for adapted bronze idler bush (Y or Z) xx1x xxYx xxZx TG H2-25 90 180 270 TG H3-32 90 180 270 TG H6-40 110 220 330 TG H15-50 150 300 450 TG H23-65 160 320 480 TG H58-80 240 480 720 TG H86-100 275 550 825 TG H185-125 325 650 975 TG H360-150 400 800 1200

Note! the clearance between the idler pin and idler bush (3rd digit) should always be less or equal

to the clearance on the idler (2nd digit). Otherwise there is a risk of contact between the idler and the crescent of the pump cover.

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C1 (µm) normal

C2 (µm) = 2 x C1

C3 (µm)

= 3 x C1

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3.14 Play between gear teeth

TG H 2-32 3-32 6-40 15-50 23-65 58-80 86-100 185-125 360-150

Minimum (µm) 320 320 320 360 400 400 400 440 440 Maximum (µm) 640 640 640 720 800 800 800 880 880

Play between gear teeth

3.15 Maximum size of solid particles

TG H 2-32 3-32 6-40 15-50 23-65 58-80 86-100 185-125 360-150

Size (µm) 80 80 90 120 125 150 165 190 225

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3.16 Shaft sealings

3.16.1 Packed gland

TG H pump size

Shaft diameter 16 22 32 40 45 55 65 Section width 5x 6 8 8 10 10 10 10 Lantern ring width 12 16 16 20 20 20 20

Dimensions in mm

3.16.2 Packing ring materials

TC Most universal solution. Woven shaft packing consisting of PTFE yarns with incorporated graphite and sliding matters (yarns GORE-GFO). Extreme low coefﬁcient of friction, good thermal conductivity, high suppleness and volume stability. Suitable for general applications.

Application temperature: -200°C to +280°C Chemical resistance: pH 0 – 14

AW Strong ﬁbres. Woven shaft packing consisting of white elastic synthetic aramide yarns with silicon free lubricating matter. Wear resistant without damaging the shaft, high section density and structure strength, good sliding properties. Used where a strong yarn is necessary e.g. sugar solutions, polymers, resins, bitumen, paper industry etc. Chosen as standard for food applications.

Application temperature: -50°C to +250°C Chemical resistance: pH 1 – 13

2-32 3-32

6-40

15-50 23-65

58-80 86-100 185-125 360-150

CC Graphite ﬁbres; dry running; high temperature. Woven shaft packing consisting of pure graphite ﬁbres without impregnation. Low coefﬁcient of friction and good dry running properties. Used as wear resistant packing at high temperature.

Application temperature: -60°C to +500°C Chemical resistance: pH 0 – 14

3.16.3 Mechanical seals

3.16.3.1 Mechanical seals according to EN12756 (DIN24960) – General information

In TopGear TG H version GS, short type KU or long type NU mechanical seals can be built in. In the smallest pump sizes H2-32 and H3-32 only the short type KU can be built in.

In the double seal versions GG and GD only the short type KU can be built in. A double mechanical seal consist of two separately chosen single mechanical seals.

If GD type back-to-back double mechanical seal is chosen, attention must be paid for axial securing of the ﬁrst stationary seat. Our pumps are provided for built in the axial securing of the stationary seat according to EN12756 (DIN24960). The exact securing ring must be delivered by the mechanical seal manufacturer together with the seals because the dimensions must be adapted to the form of the seat.

TG H pump size

Shaft diameter 16 22 32 40 45 55 65 Short EN12756

(DIN 24960) L-1K (short KU) 35 37.5 42.5 45 45 47.5 52.5 Long EN12756

(DIN 24960) L-1N (long NU) – 45 55 55 60 70 80

Dimensions in mm

2-32 3-32

KU016 KU022 KU032 KU040 KU045 KU055 KU065

– NU022 NU032 NU040 NU045 NU055 N U065

6-40

15-50 23-65

58-80 86-100 185-125 360-150

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Performance

Maximum performance such as viscosity, temperature and working pressure depends on the make of the mechanical seal and the used materials. The following basic values can be taken into consideration.

Maximum temperatures of elastomers

Nitrile (P): 110°C FPM (Fluorocarbon): 180°C PTFE (solid or PTFE wrapped): 220°C Chemraz®: 230°C Kalrez®*: 250°C

* Kalrez® is a registered trademark of DuPont Performance Elastomers

Maximum viscosity for GS and GG type 3000 mPas: For single mechanical seals of light construction e.g. Burgmann MG12 5000 mPas: For mechanical seals of strong torque construction (consult manufacturer).

The maximum allowed viscosity between the sliding faces of the mechanical seal depends on the nature of the liquid (Newtonian, plastic etc.), the sliding speed of the seal faces and the mechanical construction.

Maximum viscosity for GD type back-to-back double seal

In contrast to single mechanical seals (GS) or double seals in tandem arrangement (GG) the sliding faces of the GD mechanical seal are lubricated by a barrier ﬂuid under pressure which allows high viscous liquids to be pumped.

Second sealing box type GG and GD maximum temperature and pressure

Maximum temperature of the second mechanical seal box: 250°C Maximum allowable pressure of the second mechanical seal box: 16 bar.

Note! The pressure before the ﬁrst mechanical seal at pumped medium side is lower than the discharge pressure.

Food applications

Special demanded Burgmann M7N (SiC-SiC seal faces and FDA approved FPM o-rings) seals can be used in food applications. Each one of these special demanded Burgmann M7N seals have a “conﬁrmation for FDA-requirements” like the one in the “Declaration of Compliance for food contact materials” (see last pages of this manual).

3.16.3.2 Cartridge mechanical seals

In TopGear H ranges Universal Cartridge mechanical seals could be built in from pump size H6-40 to H360-150. Several functions and more complicated constructions e.g. gas seals, API conformity etc. are possible. Contact your local supplier if you have a special application or special questions. The end plate or the gland of the cartridge mechanical seal must be adapted to the built in dimensions of the TopGear pump. See ﬁgure next page.

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G=ANSI B1.20.1

G1G3

Built-in dimensions

Lk3

Ø df

Lk1

LiLj

Sealing face

Ø d4

Ø d1

TG H pump size

Ød1

[mm]

Ø da

LbLa

[mm]

Ød4

Ø db

Øda

[mm]

Ødb

[mm]

Ødc

[mm]

Øde

[mm]

40°

Ødf

4xMd

[mm]

[mm]La[mm]Lb[mm]Lc[mm]Ld[mm]Le[mm]Lf[mm]

45°

2-32 16 32 39 60 49 66 28 4xM6 48 45 11.5 7.5 6 6 3-32 16 32 39 60 49 66 28 4xM6 48 45 11.5 7.5 6 6 6-40 22 45 52 74 62 – 38 4xM6 46 60 6 8.5 12 8 15-50 32 58 68 90 78 – 48 4xM6 53 72 9 9 13 8 23-65 32 58 68 90 78 – 48 4xM6 53 72 9 9 13 8 58-80 40 72 82 110 94 – 58 4xM8 56 90 6 12 15 12 86-100 45 77 87 120 104 – 63 4xM8 55 86 6 12 15 12 185-125 55 90 106 160 124 203 75 4xM8 58 117 6 14 16 16 360-150 65 105 120 170 142 180 88 4xM10 65 118 6 14 19 16

Rp=ISO 7/1

TG H pump size

[mm]Lh[mm]Ra[mm]Li[mm]Lj[mm]

ØLk1

ØLk3

[mm]

[mm]Li[mm]Lm[mm]Ln[mm]

G1 G3 G2

2-32 – 30 – 11.5 20 8.8 40 6 14 G1/8” G3/8” 3-32 – 30 – 11.5 20 8.8 40 6 14 G1/8” G3/8” 6-40 – – – 8.5 24.5 11.8 62.5 4 18 G1/4” G3/8” 15-50 35 – 15 8.5 28.5 11.8 56 5 23 G1/4” G1/2” 23-65 35 – 15 8.5 28.5 11.8 56 5 23 G1/4” G1/2” 58-80 40 – 23 9.5 30 11.8 19 70 5 30 G1/4” G1/2" G3/4” 86-100 45 – 15 9.5 29 11.8 19 70 5 30 G1/4” G1/2" G3/4” 185-125 – 95 – 10.5 31 11.8 19 90 6 29 G1/4” G1/2" G3/4” 360-150 – 74 – 13 36.5 11.8 19 95 6 36 G1/4” G1/2" G3/4”

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3.16.4 Reverted packing execution for e.g. chocolate application

For chocolate pumping applications the PR version is designed.

The pump shaft is sealed by means of packing rings and the bronze shaft bearing is placed outside the pumped medium and is designed to work as a packing gland. Because of the fact that, under normal conditions, the shaft bearing does not come into contact with the pumped medium, bronze can be used as material.

The bush bearing is greased by an external grease supply. The grease has to be provided by the end user because of compatibility with the pumped liquid.

Depending of the type of chocolate extra clearances are given on Rotor, Idler, Pump cover and Idler bush bearing. For extra clearances see 3.13.

TG H pump size 6-40

Shaft diameter (mm) 22 32 40 45 55 Section width (mm) 8 8 10 10 10 Number of rings see 5.2.5.7

Dimensions in mm

TG GM 6-40 to TG GM 23-65

1210

2160

2170

2110

2100

1220

1230

1240

15-30 23-65

2140

2130

2120

2050

2020

2060

2070

0710

58-80 86-100 185-125

TG GM 58-80 to TG GM 360-150

2160

2110

2150

2100

2010

3000

2140

2130

2120

2050

2020

2060

2070

2030

2000

2080

3000

2010

2080

2000

2030

Reverted packing (improved execution)

On this improved execution, the gland packing area can be ﬁlled with grease from the outside before the pump is actually started. This prevents the chocolate from entering this area until the packing is properly adjusted. Otherwise, in case chocolate with sugar content is entering the gland packing area, it would caramelize/burn at the inside and the shaft sealing would become immediately uneffective even if the gland is tightened harder afterwards. To allow this pre-lubrication of the gland packing area, we have added a lantern ring with external grease nipple behind the ﬁrst packing ring. Please note that the lubricant must be food-approved and compatible with the product pumped.

Note! The packing is lightly tightened by hand at the factory. When pumping chocolate, the packing

needs to be tightened bit by bit at the initial start-up in order to achieve the utmost minimum of leakage, just enough to lubricate the packing rings. Excessively leaking chocolate can overheat in the packing, causing caramelisation, resulting in extra wear of the packing.

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3.17.5 Triple PTFE lip-seal cartridge

As from the ﬁrst of July 2015, this new shaft sealing option (TCL TV) is available on the TopGear GM and H range. This new shaft sealing option can be used for pumping products with a viscosity of more than 5.000 mPas as alternative for double mechanical seals omitting the need for an expensive pressurized quench system. This option can be used for medium temperatures up to 220 °C and a maximum pressure of 16 bar.

Beneﬁts:

• Cartridge system – easy to assemble

• Independent of sense of rotation

• Low friction and limited dry-running capabilities

• Lip-seals with outstanding chemical resistance

• No need for pressurized quench system

• Non-clogging in viscous media

• Low pressure quench and/or leak detection between 2nd and 3rd lip-seal

• Repair kits available for on-site maintenance

Materials:

• Casing and insert: Duplex steel

• Shaft sleeve: Cementation steel

• Lip seals: GARLOCK Gylon-B (PTFE)

• O-rings: Fluoroelastomer FKM (Viton).

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3.17 Safety relief valve

Example

V 35 - G 10 H

1 2 3 4 5

1. Safety relief valve = V

2. Type indicating = inlet diameter (in mm)

18 Safety relief valve size for

TG H2-32, TG H3-32, TG H6-40

27 Safety relief valve size for

TG H15-50, TG H23-65

35 Safety relief valve size for

TG H58-80

50 Safety relief valve size for

TG H86-100, TG H185-125

60 Safety relief valve for

TG H360-150

3. Materials

G Safety relief valve in cast iron (not for foodapplications) S Safety relief valve in steel (not for foodapplications) R Safety relief valve in stainless steel (for foodapplications)

4. Working pressure class

4 Working pressure 1-4 bar 6 Working pressure 3-6 bar 10 Working pressure 5-10 bar 16 Working pressure 9-16 bar

5. Heated spring casing

H Safety relief valve heated spring casing

Safety relief valve – horizontal Safety relief valve – vertical

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3.17.1 Pressure

Safety relief valves are divided into 4 working pressure classes i.e. 4, 6, 10 and 16 indicating the maximum working pressure for that valve. Each class has a standard set pressure at 1 bar above the indicated maximum working pressure. The set pressure can be set lower on request never higher.

Working pressure class 4 6 10 16 Standard set pressure (bar) 5 7 11 17 Working pressure range (bar) 1 – 4 3 – 6 5 – 10 9 – 16 Set pressure range (bar) 2 – 5 4 – 7 6 – 11 10 – 17

3.17.2 Heating

Heating version is only available on the steel (S) relief valve. The weld on jacket is provided with 2 thread connections. Flange connections are not available.

Maximum temperature: 200°C Maximum pressure: 10 bar

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3.17.3 Safety relief valve – Relative adjustment

Adjustment of the standard setting pressure is performed at the factory.

Note! When testing the safety relief valve mounted on the pump, make sure the pressure never

exceeds the set pressure of the valve + 2 bar.

To adjust the standard opening pressure, proceed as follows:

1. Loosen the tap bolts (7310).

2. Remove cover (7050).

3. Take the measurement of dimensions of H.

4. Read spring ratio in the below table and determine the distance over which the adjusting bolt (7320) must be loosened or tightened.

7050

7320

7310

Vertical safety relief valve Set pressure modiﬁcation

Spring ratio – Safety relief valve

TG H pump size

2-32 3-32 6-40

15-50 23-65

58-80

86-100 185-125

360-150

Pressure

classDummdmmLomm

4 25.5 3.0 64 0.26 3.85

6 25.5 3.5 66 0.43 2.33 10 25.5 4.5 60 1.72 0.58 16 25.5 4.5 60 1.72 0.58

4 37.0 4.5 93 0.21 4.76

Horizontal

6 37.0 4.5 93 0.21 4.76 10 36.5 6.0 90 0.81 1.23 16 36.5 6.0 90 0.81 1.23

4 49.0 7.0 124 0.32 3.13

6 49.0 7.0 124 0.32 3.13 10 48.6 8.0 124 0.66 1.52 16 48.6 8.0 124 0.66 1.52

4 49.0 7.0 124 0.16 6.25

6 48.6 8.0 124 0.33 3.03 10 49.0 9.0 120 0.55 1.82

Vertical

16 62 11 109 0.86 1.16

4 82 11 200 0.12 8.33

6 82 11 200 0.12 8.33 10 84 12 200 0.19 5.26 16 88 14 200 0.32 3.13

Spring dimensions

p/f

bar/mm

∆H [mm] in order

to adjust by 1 bar

(unloaded)

Example: adjust the standard set pressure of a V35-G10 valve (for pump size 58-80) to 8 bar.

F Standard set pressure of V35-G10 = 11 bar (see table under 3.18.1) F Difference between actual set pressure and desired set pressure = 11 - 8 = 3 bar F ∆H to loosen the adjusting bolt = 3 x 1.52 mm (see table above) = 4.56 mm

Note! The spring ratio p/f depends upon the dimensions of the spring. Check these dimensions if

necessary (see table above).

When the safety relief valve is not functioning properly, the pump must immediately be taken out of service. The safety relief valve must be checked by your local distributor.

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7400

3.17.4 Sectional drawings and part lists

3.17.4.1 Single safety relief valve

7030

7400

7360

7240

7170

7110

7320

7330

7100

7010

7310

7050

7180

7300

7040

7150

7100

7400

7040

7100

7240

7300

7330

7320

7180

7050

7150

Single safety relief valve – horizontal

Pos. Description V18 V27 V35 V50 V60 Preventive Overhaul

7010 Valve 1 1 1 1 1 7030 Valve casing 1 1 1 1 1 7040 Spring casing 1 1 1 1 1 7050 Cover 1 1 1 1 1 7100 Spring plate 2 2 2 2 2 7110 Valve seat 1 1 1 1 1 7150 Spring 1 1 1 1 1 7170 Flat gasket 1 1 1 1 1 x x 7180 Flat gasket 1 1 1 1 1 x x 7240 Name plate 1 1 1 1 1 7300 Tap bolt 3 4 4 4 4 7310 Tap bolt 3 4 4 4 4 7320 Adjusting screw 1 1 1 1 1 7330 Hexagonal nut 1 1 1 1 1 7360 Arrow plate 1 1 1 1 1 7400 Rivet 4 4 4 4 4 7420 Set screw – – 2 2 2

7310

7100

7010

7110

7170

7360

7400

Single safety relief valve – vertical

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7030

7420

Page 34

8010

8060

8070

8050

8020

3.17.4.2 Heated spring casing

Pos. Description V18 V27 V35 V50 V60 Preventive Overhaul

7041 Heated spring casing N/A 1 1 1 1

3.17.4.3 Double safety relief valve

7041

8020

8050

8040

8070

8030

Double safety relief valve – horizontal

Pos. Description V18 V27 V35 V50 V60 Preventive Overhaul

8010 Y-casing 8020 Cylindrical head screw 16 16 16 16 8030 Stud bolt 8 8 8 8 8040 Hexagonal nut 8 8 8 8 8050 Flat gasket 3 3 3 3 x x 8060 Arrow plate 1 1 1 1 8070 Rivet 2 2 2 2

1 1 1 1

N/A

8040

8030

8060

Double safety relief valve – vertical

8010

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3.18 Installation

3.18.1 General

This manual gives basic instructions which are to be observed during installation of the pump. It is therefore important that this manual is read by the responsible personnel prior to assembly and afterward to be kept available at the installation site.

The instructions contain useful and important information allowing the pump/pump unit to be properly installed. They also contain important information to prevent possible accidents and serious damage prior to commissioning and during operation of the installation.

Non-compliance with the safety instructions may produce a risk to the personnel as well as to the environment and the machine, and results in a loss of any right to claim damages.

It is imperative that signs afﬁxed to the machine, e.g. arrow indicating the direction of rotation or symbols indicating ﬂuid connections is observed and kept legible.

3.18.2 Location

3.18.2.1 Short suction line

Locate the pump/pumpunit as close as possible to the liquid source and if possible below the liquid supply level. The better the suction conditions, the better the performance of the pump. See also section 3.18.6.2 Piping.

3.18.2.2 Accessibility

Sufﬁcient room should be left around the pump/pump unit to allow proper inspection, pump isolation and maintenance.

Sufﬁcient space should be left in front of the pump to enable disassembly of the pump cover, idler and idler pin.

• For loosening pump cover refer to ma

• For disassembling rotating parts (pump shaft and sealing) refer to mb

• To adjust pressure of safety relief valve refer to mc

For dimensions of ma, mb, mc see chapter 6.0.

It is imperative that the operating device of pump and/or pump unit is always accessible (also during operation).

3.18.2.3 Outdoor installation

The TopGear pump may be installed in the open, the ball-bearings are sealed by rubber V-joints protecting the pump against dripping water. In very wet conditions we advice to install a roof.

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3.18.2.4 Indoor installation

Locate the pump so that the motor can be vented properly. Prepare the motor for operation according to instructions provided by the motor manufacturer.

When ﬂammable or explosive products are pumped, a proper earthing should be provided. The components of the unit should be connected with earthing bridges to reduce the danger arising from static electricity. Use explosion free or explosion proof motors according to local regulations. Provide suitable coupling guards and suitable couplings.

Excessive temperatures Depending on the ﬂuid being pumped, high temperatures may be reached inside and around the pump. From 60°C onwards the responsible person must provide the necessary protective means and place “Hot surfaces” notices.

When insulating the pump unit, ensure that adequate cooling is allowed from the bearing housing. This is required for cooling of the bearings and grease of the bearing bracket (see 3.18.9.7 Guarding of moving parts).

Protect the user against leakages and possible liquid streams.

3.18.2.5 Stability

Foundation

The pump unit must be installed on a base plate or on a frame placed exactly level on the foundation. The foundation must be hard, level, ﬂat and vibration free to guarantee correct alignment of the pump/drive while operating. See also section 3.18.9 Guidelines for assembly and section 3.18.9.6 Shaft coupling.

Horizontal mounting Pumps are to be mounted horizontally on the integral feet. Other kinds of installation have an inﬂuence on draining, ﬁlling and functioning of the mechanical seal, etc. If the pump/pump unit is installed differently, contact your local supplier.

Support Nevertheless the feet underneath the pump casing make the pump very stable, an extra support is placed under the bearing bracket. Especially when driven by V-belt and/or a combustion engine this extra support close to the coupling is needed. It is designed to absorb the belt forces and vibrations whilst letting the pump shaft expand freely along its axis.

3.18.3 Drives

If a bare shaft pump is supplied, the user is responsible for the drive and the assembling with the pump. The user also must provide guarding of moving parts. See also section 3.18.9 Guidelines for assembly.

3.18.3.1 Starting torque

• The starting torque of internal gear pumps is almost identical to the nominal torque.

• Take care that the motor has a sufﬁciently large starting torque. Therefore choose a motor with a capacity 25% higher than the pump power consumption.

Note! A mechanical variable speed drive requires checking of the available torque at low and high speed.

• Frequency invertors may have limited the starting torques.

• Also verify that the maximum allowable torque at the pump shaft is not exceeded (see section

3.10.4). In critical cases a torque-limiting device such as a slip or break coupling can be provided.

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3.18.3.2 Radial load on shaft end

The shaft end of the pump shaft may be loaded in radial sense with the maximum radial force (Fr). See table.

TG H pump size Fr (N) - max

2-32/3-32 400 6-40 700 15-50/23-65 1000 58-80/86-100 2000 185-125 3000 360-150 6000

• This force is calculated on the maximum allowable torque and the maximum allowable working pressure of the pump.

• In case a direct drive with a ﬂexible coupling is used, the indicated force will not be exceeded when pump and drive are well aligned.

• Starting with the TG H15-50, V-belt drive can be used.

In case of V-belt drive The maximum allowable radial force Fr as indicated in the table may be chosen higher but must be calculated case by case in function of pressure, torque and size of the pulley. Consult your local supplier for advice.

3.18.4 Shaft rotation for pump without safety relief valve

The shaft rotation determines which port of the pump is suction and which is discharge. The relation between the shaft rotation and the suction/discharge side is indicated by the rotation arrow plate attached at the top cover of a pump without safety relief valve.

13 2

1 Direction of rotation of pump shaft 2 Suction side 3 Discharge side

Note! Shaft rotation is always viewed from the shaft end towards the pump.

Unless otherwise speciﬁed on the order, TopGear pumps are built at the factory for clockwise rotation (left ﬁgure above), which we deﬁne as the standard direction of rotation.

The small arrows 2 and 3 indicate the ﬂow direction of the pumped liquid. Always make sure that shaft rotation corresponds with the position of the discharge and suction ports and the direction indicated by the rotation arrow plate.

If the shaft rotation is correct in relation to the port position but different from the direction indicated by rotation arrow plate, the top cover must be disassembled and turned around by 180°. The two suck-back grooves will help to evacuate air or gases during start-up or whilst running. As they only function in one direction of rotation, the top cover should be positioned in such a way that the suck-back grooves are placed towards the suction side.In case of doubt, contact your local distributor.

If the pump rotates in both directions, the top cover should be positioned in such a way that the suck-back grooves are placed towards the most used suction side.

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suck-back grooves

Page 38

13 2

3.18.5 Shaft rotation for pump with safety relief valve

TG 2-25 @ TG 23-65

13 2

TG 58-80 @ TG 360-150

1 Direction of rotation of pump shaft 2 Suction side 3 Discharge side

Note! Shaft rotation is always viewed from the shaft end towards the pump.

Unless otherwise speciﬁed on the order, TopGear pumps are built at the factory for clockwise rotation (left ﬁgures above), which we deﬁne as the standard direction of rotation.

If the shaft rotation is correct in relation to the port position but different from the direction indicated by rotation arrow plate, the safety relief valve must be disassembled and turned around by 180°.

If the pump rotates in both directions, a double safety relief valve is required. When a double safety relief valve is installed three arrow plates are attached – one on each valve

suck-back grooves

3 1 2

(A and B) indicating the liquid ﬂow direction of each valve (small arrows 2 and 3) and one on the Y-casing (C) indicating the most favourable direction of rotation of the pump (arrow 1).

The two suck-back grooves will help to evacuate air or gases during start-up or whilst running. As they only function in one direction of rotation, the Y-casing should be positioned in such a way that the suck-back grooves are placed towards the most used suction side. In case of doubt, contact your local distributor.

Be sure that the safety relief valves are mounted opposite each other so that the arrow plates on the safety relief valves (A and B) are indicating opposite liquid ﬂow directions.

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3.18.6 Suction and discharge pipes

3.18.6.1 Forces and moments

Note! Excessive forces and moments on the nozzle ﬂanges derived from piping can cause mechanical damage to pump or pump unit. Pipes should therefore be connected in line, limiting the forces on the pump connections. Support the pipes and make sure they remain stress-free during operation of the pump.

TG H pump size F

2-32 4100 650 3-32 4100 650 6-40 4400 770 15-50 5200 1350 23-65 5800 1600 58-80 7100 2750 86-100 8200 3500 185-125 11800 7500 360-150 21200 14300

(N) M

x, y, z

(Nm)

See table for maximum allowable forces (F

on a solid foundation (e.g. grouted base plate or solid frame).

When pumping hot liquids attention should be given to forces and moments caused by thermal expansion in which case expansion joints should be installed.

Check after connecting whether the shaft can move freely.

3.18.6.2 Piping

• Use piping with an equal diameter than the connection ports of the pump and shortest possible.

• The pipe diameter has to be calculated in function of the liquid parameters and the installation parameters. If necessary use larger diameters to limit pressure losses.

• If the ﬂuid to be pumped is viscous, pressure losses in the suction and discharge lines may increase considerably. Other piping components like valves, elbows, strainers, ﬁlters and foot valve also cause pressure losses.

• Diameters, length of piping and other components should be selected in such a way that the pump will operate without causing mechanical damage to the pump/pump unit, taking into account the minimum required inlet pressure, the maximum allowable working pressure and the installed motor power and torque.

• Check the tightness of the pipes after connection.

Suction piping

• Liquids should preferably enter the pump from a level higher than the pump level. In case the liquid should be sucked from a level lower than the pump level, the inclining suction pipe should rise upwards towards the pump without any air pockets.

• A too small diameter or a too long suction pipe, a too small or blocked strainer will increase pressure losses so that the NPSHa (NPSH available) becomes smaller than the NPSH (NPSH required).

Cavitation will occur, causing noise and vibrations. Mechanical damage to pump and pump unit

is not excluded.

• When a suction strainer or ﬁlter is installed pressure losses in the suction line must be checked constantly. Also check if the inlet pressure at the suction ﬂange of the pump is still sufﬁciently high.

• When the pump works in both directions, pressure losses must be calculated for both directions.

) and moments (M

x, y, z

) on the nozzle ﬂanges with pump

x, y, z

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Self-priming operation At the start sufﬁcient liquid must be available in the pump ﬁlling up the internal clearance volume and the dead spaces, allowing the pump to build up a pressure difference.

Therefore, for pumping low viscosity ﬂuids, a foot valve with the same or larger diameter than the suction pipe must be installed or the pump can be installed without foot-valve but in U-line.

Note! A foot valve is not recommended when pumping high viscous liquids.

• To remove air and gases from suction line and pump, counter pressure at the discharge side must be reduced. In case of self-priming operation, start-up of the pump should be performed with open and empty discharge line allowing air or gases to escape at low back pressure.

• Another possibility in case of long lines or when a non-return valve is installed in the discharge line, is to install a by-pass with isolating valve close to the discharge side of the pump. This valve will be opened in case of priming and allows air or gas evacuation at low back pressure. The bypass should be lead back to the supply tank – not to the suction port.

3.18.6.3 Isolating valves

To allow proper maintenance it is necessary to be able to isolate the pump. Isolation can be done by installing valves in suction and discharge lines.

• These valves must have a cylindrical passage of the same diameter of the piping (full bore). (Gate or ball valves are preferable).

• When operating the pump, the valves must be opened completely. The output must never be regulated by means of closing valves in suction or discharge pipes. It must be regulated by changing shaft speed or by re-routing the media over a by-pass back to the supply tank.

Discharge

By-pass

Suction

Piping

3.18.6.4 Strainer

Foreign particles can seriously damage the pump. Avoid the entry of these particles by installing a strainer.

• When selecting the strainer attention should be given to the size of the openings so that pressure losses are minimised. The cross-sectional area of the strainer must be three times that of the suction pipe.

• Install the strainer in such a way that maintenance and cleaning are possible.

• Make sure that the pressure drop in the strainer is calculated with the right viscosity. Heat the strainer if necessary to reduce viscosity and pressure drop.

For the maximum allowable particle size see section 3.15.

3.18.7 Secondary piping

For dimensions of connections and plugs see chapter 6.0.

3.18.7.1 Drain lines

The pump is provided with drain plugs.

Bc Bd

1 ; 2

(TG H58-80 / TG H360-150)

1 ; 2

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3.18.7.2 Heating jackets

1. S-type jackets

The S-jackets are designed for use with saturated steam (max 10 bar, 180°C) or with non-dangerous media. They are provided with threaded connections Bl (see chapter 6.0 for the dimensions).

The connection can be done by threaded pipes or pipe connections with sealing in the thread (conical thread applying ISO 7/1) or sealed outside the thread by means of ﬂat gaskets (cylindrical thread applying ISO 228/1). Thread type see section 3.21.7.

S-jacket on pump cover

H2-32/H3-32

S-jacket around shaft area

H2-32/H3-32

2. T-type jackets

The T-jackets are provided with special steel ﬂanges (delivered with the pump) on which the pipes should be welded properly by qualiﬁed personnel. The jackets are made of nodular iron or other ductile material. For pipe dimensions of Cf see chapter 6.0.

H6-40 – H360-150

T-jacket on pump cover T-jacket around shaft area

H6-40 – H360-150 H6-40 – H360-150

3. Jacket on pump cover

In case of steam supply, connect the supply line at the highest position and the return line to the lowest position so that condensed water will be drained via the lowest line. In case of liquid supply, the positions are not important. A drain plug Bh is provided and can be considered as a drain line (TG H6-40 – TG H360-150).

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TGH 2-32 TGH 3-32

TGH 6-40/ TGH 360-150

0460

4. Jacket around the shaft seal

Connect the supply and the return line to both connections on the intermediate casing. A drain plug is provided in the intermediate casing at the bottom side (Bg). In case of steam supply this drain can be connected to a drain line to evacuate condensed water.

Note! After connection check the tightness of the heating circuit and vent it properly.

5. Jackets on safety relief valve – around spring casing

The jackets on the safety relief valve are designed for use with saturated steam (max 10 bar, max 180°C) or with non-dangerous media (max 10 bar, max 200°C). They are provided with threaded connections Bo (see chapter 6.0 for dimensions). The connection can be done with threaded pipes or pipe connections with sealing in the thread (conical thread applying ISO 7/1). Thread type see section 3.21.7.

3.18.8 Flush/quench media

When the shaft sealing needs ﬂushing or quenching, it is the responsibility of the user to select the appropriate media and to provide the necessary piping and accessories (valves, etc.) which are necessary to ensure a proper functioning of shaft seal.

When installing a ﬂush or quench circuit always use the lowest connection as inlet and the highest one as outlet (in case of two side connection). This will facilitate the evacuation of air or gases if any.

3.18.8.1 Packing

Flush/Quench media selection

Attention should be given to the compatibility of the pumped liquid with the ﬂush/quench media. Choose the sealing liquid so that unwanted chemical reactions are avoided. Also check the chemical resistance and the maximum allowable temperature of the materials of construction and the elastomers. In case of doubt, contact your local supplier.

Shaft gland packing can be quenched using one connection or ﬂushed using two connections via the lantern ring of the stufﬁng box.

One quenched connection

Quench media is fed to one connection when:

• In the case of a self-priming pump air suction through the packing (3000) has to be avoided or when packing rings need lubrication in order to avoid running dry. Connect the lantern ring (2020) to the discharge ﬂange or to another liquid via Bd or Bi.

H2-32/H3-32 H6-40 – H360-150

2090

2xBi

2070

2060

3000

2xBl

2020

2040

2000

2070

2060 2040 3000 2020

Connection ﬂuid circuit across packing

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TGH 2-32/TGH 3-32

TGH6-40 - TGH360-150

• When at a high discharge pressure packing (3000) must be relieved. Connect the suction ﬂange via Bd or Bi. Be sure the pressure in the lantern ring area is above atmosphere pressure to avoid air sucking through the last packing rings which makes the packing running dry.

• The pumped liquid must be quenched to avoid contact with the atmosphere (when this liquid is corrosive or poisonous) or when build up of residues of abrasive liquids against the packing must be avoided. Connect a clean, different liquid (e.g. water) via Bd or Bi at a pressure which is higher than the pressure existing before the packing. A slight quantity of this liquid will leak into the process liquid.

Two ﬂushed connections

Flushing media requires two connections to provide in and out. This arrangement is used:

• To drain leaking or to cool or heat packing (3000). Connect inlet with Bc or Bi and outlet with

Bd or Bj. Both pumped liquid and another media can be used as ﬂush media.

3.18.8.2 Single Mechanical seal

To guarantee lubrication and cooling of the sliding faces, let a media circulate along the mechanical seal. Proceed as follows:

One connection point

• Connect suction or discharge ﬂange with connection Bd or Bi.

Two connection points

• Connect discharge ﬂange with connection Bd or Bi and suction ﬂange with connection Bc.

• Provide piping with accessories to reduce ﬂow.

• In case of either one or two connection points, Bc can be used as ﬁlling and air release plug.

3.18.8.3 Double mechanical seal – Tandem arrangement

H2-32/H3-32 H6-40 – H360-150

2xBi

2220

2210 3010

2090 2200

2080

Connection ﬂuid circuit across single mechanical seal

2200

3010

For lubrication and cooling of the sliding faces at liquid side of this shaft sealing, proceed as described in section “single mechanical seal”.

Provide via Bj the supply of a media quenching the mechanical seal at atmosphere side. Install the quench media reservoir at a height of maximum 1 metre above the pump and let the media circulate without pressure or at least without overpressure.

Supply from an open tank will do thanks to the Thermo siphon principle.

Pressure of the quench media must be reduced in order to avoid the mechanical seal from being pushed open.

For other possibilities of connection, refer to section

3.18.8.6 Secondary connections.

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Circulation of ﬂush media without pressure (GG)

Page 44

3050

3.18.8.4 Double mechanical seal – Back-to-back arrangement

• Use connection Bd or Bi as the outlet of quench media and one of the connections Bj as the inlet.

• Use connection Bc as ﬁlling and air release plug (this is not possible with H2-32/H3-32 and with jackets around the shaft seal area).

• Let the media circulate between the sliding faces (B) at 1-2 bar overpressure with regard to the pressure in the sealing space at pump side (A). Under normal circumstances the pressure in the sealing space (A) is equal to the suction pressure plus half the differential pressure (∆p).

Locking ring

At the ﬁrst mechanical seal (liquid side) an axial locking ring can be mounted (also consult section 4.7.7.3 or EN12756 (DIN24960).

Bd (Bi)

Axial locking ring at the ﬁrst mechanical seal

This locking ring prevents the static part of the mechanical seal from being pushed out of its seat in case quench pressure (B) falls back or drops out.

This locking ring must be adapted to the static ring and must be delivered together with the mechanical seal.

Some mechanical seals are designed in such a way that the stationary ring can not be pushed out of its seat. In that case, there’s no need to ﬁt a locking ring.

Design double mechanical seal without locking ring

3.18.8.5 Cartridge mechanical seal

The cartridge mechanical seal can be delivered in several conﬁgurations:

• Single mechanical seal with throttle bush (leak control or steam quench) (GCT)

• Single mechanical seal with lipseal (liquid quench)(GCQ)

• Double seal arrangements (GCD)

• Triple lip-seal (LCT TV / LCT XX):

low pressure quench and/or leak detection between 2rd and 3rd lip-seal

For details and ﬂush/quench connections, see ﬁgure in section 4.7.7.4.

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3.18.8.6 Secondary connections

Several connection types for circulation, quench or ﬂush on shaft sealing are possible in accordance to ISO-code or to API-plan.

Overview possible conﬁgurations for shaft seal circulation, quench and ﬂushing.

Shaft sealing I SO 5199 code API 610 plan

PQ 02,03,04,05,06,07,08,09,10,11,12,13 2,11,12,13,21,22,23,31,32,41,51,52,53,54,61,62 GS 02,03,04,05,06,07,08 2,11,12,13,21,22,23,31,32,41 GG, GCT, GCQ,

GCD-tandem GD,GCD 08,09,11,12,13 51,53,54,62

02,03,04,05,06,07,08,09,10,13 2,11,12,13,21,22,23,31,32,41,51,52,61,62

Examples:

API plan 02/ ISO code 00 – Circulation not provided - but possible

Connections are plugged and can be used for possible future venting of the shaft sealing space or to connect circulation or ﬂushing. This conﬁguration is standard in TopGear H-range.

2xBi (TG H2-32/3-32) 2xBi (TG H2-32/3-32)

API plans 11, 13, 21/ ISO codes 02, 03, 06, 07 – Circulation pumped liquid

Recirculation of the pumped product through an oriﬁce either from the pump discharge to the shaft seal chamber or from the shaft seal chamber to the pump suction side. The ﬂuid returns internally. Some restriction is needed to reduce capacity.

For viscous pumped liquid it is favourable for easy evacuating of air to connect the seal chamber to the pump suction provided the suction pressure is near or above atmospheric pressure and there is no danger that air is sucked through the seal.

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Page 46

PQ GS

Bc Bd

2xBi

API plans 12, 22, 31, 32, 41/ ISO codes 04, 05, 08, 09 – Clean ﬂush

A ﬂow of clean ﬂuid to the seal chamber. The ﬂuid can be either pumped ﬂuid recirculating through a strainer or cyclone separator and oriﬁce, or a clean compatible ﬂuid injected from an external source. This media comes into contact with the pumped liquid, so it must be compatible with it.

2xBi (TG H2-32/3-32) 2xBi (TG H2-32/3-32)

Pressurised barrier (double seal)

A pressurised barrier ﬂuid from an external reservoir or circuit is connected to the shaft seal chamber. The barrier ﬂuid must be clean and compatible with the ﬂuid being pumped.

API plans 53, 54/ ISO codes 09, 11, 12 API plans 51, 62/ ISO codes 08, 13 Circulating quench Non-circulating quench

2xBi

API plan 61/ ISO code 03 – Leakage check and containment

(Single cartridge mechanical seal Cartex TN3 GCT) In case the seal chamber is not connected, it serves as a seal leakage control (leakage through the ﬁrst shaft seal). The seal chamber can be connected to a pipe which drains the leakage. Because risks of dry running the arrangement is only advised for single mechanical cartridge seal.

API plans 51, 62/ ISO codes 08, 09, 13, 03 – Static quench

(Double mechanical seal tandem GG, Single cartridge mechanical seal Cartex TN3 GCT, Single Cartridge mechanical seal Cartex QN3 GCQ, Double cartridge mechanical seal Cartex DN3 GCD). A clean, non-pressurised quench medium (liquid or steam) ﬂowing from an external source can be connected.

(TG H2-32/3-32)

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API plan 52/ ISO codes 10, 03 – Circulating quench

A non-pressurised barrier ﬂuid is connected, ﬂowing from an external source and circulating between both shaft seals.

3.18.9 Guidelines for assembly

When a bare shaft pump is delivered, the assembly with drive is the responsibility of the user. The user also must provide all necessary devices and equipment allowing a safe installation and commissioning of the pump.

3.18.9.1 Transport of pump unit

• Prior to lifting and transporting a pump unit, make sure that the packaging is of sturdy enough construction is and will not be damaged during transport.

• Use crane hooks in the base plate or the frame. (See chapter 1.0.)

2xBi

(TG H2-32/3-32)

Bj1

Bj2

3.18.9.2 Foundation pump unit

The pump unit must be installed on a base plate or on a frame placed exactly level on the foundation. The foundation must be hard, level, ﬂat and vibration free in order to guarantee the alignment of pump/drive while operating. (See section 3.18.2.5)

3.18.9.3 Variators, Gear box, Gear motors, Motors

Consult the supplier’s instruction manual included with the delivery. Contact the pump supplier if the manual is not included.

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3.18.9.4 Electric motor drive

• Before connecting an electric motor to the mains check the current local regulations of your electricity provider as well as the EN 60204-1 standard.

• Leave the connecting of electric motors to qualiﬁed personnel. Take the necessary measures to prevent damage to electrical connections and wiring.

Circuit breaker

For safety work on a pump unit, install a circuit breaker as close as possible to the machine. It also is advisable to place an earth leakage switch. The switching equipment must comply with current regulations, as stipulated by EN 60204-1.

Motor overload protection

To protect the motor against overloads and short-circuits a thermal or thermo-magnetic circuit breaker must be incorporated. Adjust the switch for the nominal current absorbed by the motor.

Connection

• Do not use a star-delta circuit with electric motors due to the required high starting torque.

• For single-phase alternating current, use motors with a “reinforced” starting torque.

• Ensure a sufﬁciently high starting torque for frequency-controlled motors and adequate cooling of the motor at low speeds. If necessary, install a motor with forced ventilation.

Electrical equipment, terminals and components of control systems may still carry live current when at rest. Contact with these may be fatal, resulting in serious injury or cause irreparable material damage.

Line Motor

U (volt) 230/400 V 400 V

3 x 230 V delta –

3 x 400 V star delta

3.18.9.5 Combustion engines

When using a combustion engine in the pump unit, see the engine instruction manual included in the delivery. Contact the pump supplier if the manual is not included. Irrespective of this manual the following must be respected for all combustion engines:

• Compliance with local safety regulations

• The exhaust of combustion gases must be screened to avoid contact

• The starter must be uncoupled automatically once the engine has started

• The pre-set maximum number of engine revolutions may not be modiﬁed

• Before starting the engine, the oil level must be checked

delta star

U1 V1 W

W2 U2 V

deltastar

U1 V1 W

W2 U2 V

Note!

• Never run the engine in a closed area

• Never refuel the engine while it is still running

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3.18.9.6 Shaft coupling

Internal gear pumps demand a relatively high starting torque. During the operation shock loads are occurring due to pulsations inherent to the gear pump principle. Therefore, choose a coupling which is 1.5 times the torque recommended for normal constant load.

Alignment

The pump and motor shafts of complete units are accurately pre-aligned in the factory. After installation of the pump unit, the pump and motor shaft alignment must be checked and re-aligned if necessary.

Alignment of the coupling halves may only take place by moving the electric motor!

1 Place a ruler (A) on the coupling. Remove or add as many shims

as is necessary to bring the electric motor to the correct height so that the straight edge touches both coupling halves over the entire length, see ﬁgure.

2 Repeat the same check on both sides of the coupling at the height of

the shaft. Move the electric motor so that the straight edge touches both coupling halves over the entire length.

3 To be certain the check is also undertaken using external callipers

(B) at 2 corresponding points on the sides of the coupling halves, see ﬁgure.

4 Repeat this check at operating temperature and spend time achieving minimum alignment

deviation.

5 Fit the protecting guard. See the ﬁgure below and the corresponding table for the maximum

allowed tolerances for aligning the coupling halves.

Belt drive

Belt drives also increase the loading on the shaft end and the bearings. Therefore, certain limitations must be imposed on the maximum load of the shaft, viscosity, pumping pressure and speed.

3.18.9.7 Guarding of moving parts

Before commissioning the pump, place a protective guard over the coupling or belt drive. This guard must comply with the EN 953 design and construction standard.

For pumps operating at temperatures above 100°C, ensure that bearing bracket and bearings are cooled sufﬁciently by the surrounding air. Openings in the bearing bracket must not be guarded if the rotating parts do not have any projections (keys or keyways) which could cause injury (see prEN809). This simpliﬁes the inspection and maintenance of the shaft seal.

Alignment tolerances

External diameter

of coupling [mm]

81-95 2 5* 4 6* 0.15 0.15

96-110 2 5* 4 6* 0.18 0.18

111-130 2 5* 4 6* 0.21 0.21

131-140 2 5* 4 6* 0.24 0.24

141-160 2 6* 6 7* 0.27 0.27

161-180 2 6* 6 7* 0.30 0.30

181-200 2 6* 6 7* 0.34 0.34

201-225 2 6* 6 7* 0.38 0.38

min [mm] max [mm]

* = coupling with spacer

- Va

max

[mm]

min

[mm]

max

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3.19 Instructions for start-up

3.19.1 General

The pump can be put into service when all arrangements described in chapter 3.18 Installation have been made.

• Prior to commissioning, responsible operators have to be fully informed on proper

operation of the pump/pump unit and the safety instructions. This instruction manual must at all times be available to the personnel.

• Prior to commissioning, the pump/pump unit must be checked for visible damage. Damage or unexpected changes must be reported immediately to the plant operator.

3.19.2 Cleaning the pump

There may be residual mineral oil inside the pump deriving from the pump testing and the initially lubricating of the bearing bushes. If these products are not acceptable for the pumped liquid, the pump should be cleaned thoroughly. Proceed as described in section 3.21.2.8 Draining of ﬂuid.

Remark: pumps made for food applications are preserved with a food grade oil. The oil used is

a NSF H3 approved oil (soluble). Nevertheless the oil is NSF H3 approved, the pump should be cleaned thoroughly before the initial start-up.

3.19.2.1 Cleaning suction line

When the TG pump is put into service for the ﬁrst time, suction line must be cleaned thoroughly. Do not use the pump. The TG pump is not meant to pump low viscosity liquids with impurities.

3.19.3 Venting and ﬁlling

To operate properly the pump should be vented and ﬁlled with the liquid to be pumped before the initial start-up:

• Unscrew the ﬁlling plug Bb, Bc, Be and Bd. Fill up the pump with the liquid to be pumped. At the same time the pump will be vented.

• Tighten the ﬁlling plugs.

• When the TG pump is brought into service for the ﬁrst time or in case new gaskets are mounted, bolts that compress gaskets must after 3 - 4 days be tightened again (for tightening torques see section 3.21.3.1).

Filling up the pump

Bc Bd

1 ; 2

(TG H58-80 / TG H360-150)

1 ; 2

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3.19.4 Checklist – Initial start-up

After thorough servicing or when the pump is to be put into service for the ﬁrst time (initial start-up) the following checklist must be observed:

Supply and discharge line

c Suction and discharge pipes are cleaned. c Suction and discharge pipes are checked for leaks. c Suction pipe is protected properly to prevent the ingress of foreign bodies.

Characteristics

c The characteristics of the pump unit and safety relief valve to be checked

(pump type – see name plate, RPM, working pressure, effective power, working temperature, direction of rotation, NPSHr etc.).

Electrical installation

c Electrical installation complies with local regulations c Motor voltage corresponds with mains voltage. Check terminal board. c Make sure that the starting torque is sufﬁciently high (no star/delta starting will be used). c Motor protection is adjusted properly. c Direction of motor rotation corresponds with direction of pump rotation. c Motor rotation (detached from unit) is checked.

Safety relief valve

c Safety relief valve (on pump or in piping) is installed c Safety relief valve is positioned correctly. Flow direction of safety relief valve

corresponds with suction and discharge lines.

c Make sure a double safety relief valve is installed when the pump has to operate in two

directions.

c The set pressure of the safety relief valve is checked (see nameplate).

Jackets

c Jackets are installed. c Maximum pressure and temperature of the heating/cooling media have been checked. c The appropriate heating media or coolant is installed and connected. c The installation complies with the safety standards.

Shaft sealing

c Heating or cooling circuit has been checked for leakages. c Pressure, temperature, nature and connections of ﬂush or quench media has been checked. c If a double mechanical seal mounted in back-to-back conﬁguration, buffer media must be

pressurized prior to starting the pump.

c When using the PR-version (reverted packing) for chocolate applications:

The packing is lightly tightened by hand at the factory. When pumping chocolate, the packing needs to be tightened bit by bit at the initial start-up in order to achieve the utmost minimum of leakage, just enough to lubricate the packing rings. Excessively leaking chocolate can overheat in the packing, causing caramelisation, resulting in extra wear of the packing. Check if the external grease supply is into service in order to lubricate the bush bearing at the start-up.

Drive

c Alignment of pump, motor, gearbox etc. is checked.

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Protection

c All guards and safety devices (coupling, rotating parts, excessive temperature) are in place

and operative.

c In case of pumps that may reach working temperatures of 60°C or more, ensure sufﬁcient safety

guards against occasional touching are in place.

3.19.5 Start-up

When the pump is to be put into service the following checklist and procedure must be observed:

c Pump is ﬁlled with liquid. c Pump is sufﬁciently preheated. c Quench media is present. Can it circulate freely?

(Attention: If you have a GD-conﬁguration, is the seal pressurized?)

c Suction and discharge valves are fully open. c Start the pump for a short while and check the direction of rotation of the motor. c Start the pump and check suction of liquid (suction pressure). c RPM of the pump is checked. c Discharge pipe and seal are checked for leaks. c Proper operation of the pump is veriﬁed. c If leakage (PO and PQ versions) of gland packing is too heavy, adjust (tighten) the gland

pressure.

When using the PR-version (reverted packing) for chocolate applications, the packing needs to

be tightened bit by bit at the (initial) start-up in order to achieve the utmost minimum of leakage, just enough to lubricate the packing rings. Excessively leaking chocolate can overheat in the packing, causing caramelisation, resulting in extra wear of the packing. Check if the external

grease supply is into service in order to lubricate the bush bearing at the start-up.

3.19.6 Shut-down

When the pump is to be put out of service the following procedure must be observed:

c Turn the motor off. c Close all auxiliary service lines (heating/cooling circuit, circuit for ﬂush/quench medium). c If solidifying of the liquid must be avoided, clean the pump while the product is still ﬂuid.

Also see section 3.21 Maintenance instructions

Note! When the liquid ﬂows back from the discharge pipe to the pump, the pump may rotate in the opposite direction. Closing the discharge line valve during the last rotation cycles can prevent this.

3.19.7 Abnormal operation

Note! In case of abnormal operation or when troubles occur the pump must be taken out of service immediately. Inform all responsible personnel.

c Prior to restarting the pump, determine the reason for the problem and solve the problem.

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3.20 Trouble shooting

Symptom Cause Remedy

No ﬂow Pump not priming

Pump stalls or irregular ﬂow

Not enough capacity Pump speed too low 12 • Increase pump speed. Attention! Do not exceed

Suction lift too high 1 • Reduce difference between

Air leak in suction line 2 • Repair leak. Very low viscosity 3 • Increase pump speed and reduce axial clearance

Suction strainer or ﬁlter clogged 4 • Clear suction strainer or ﬁlter. Pump casing incorrectly installed

after repair Wrong direction of rotation of motor 6 • For 3-phase drivers change 2 connections.

Liquid level in suction tank falls too low 7 • Correct liquid supply

Output too high 8 • Reduce pump speed/or install a smaller pump.

Air sucking 9 • Repair leak in suction line.

Cavitation 10 • Reduce difference between pump and suction

Liquid vaporises in pump (e.g. by heating up)

Air sucking 13 • Repair leak in suction line.

Cavitation 14 • Reduce difference between pump and suction

Back pressure too high 15 • Check discharge pipe.

Safety relief valve set too low 16 • Correct pressure setting.

pump and suction tank level.

• Increase suction pipe diameter.

• Reduce length and simplify suction pipe (use as few elbows and other ﬁttings as possible). Also see section 3.18 Installation.

(see section 3.21 Maintenance instructions).

5 • Install pump casing correctly.

See section 3.18 Installation.

• Change suction and discharge opening. (Attention! Check the location of the safety relief valve).

• Provide a level switch

• Install by-pass line with check-valve.

• Check or replace shaft seal.

• Check/provide quench on shaft seal.

• Connect plug Bb to the pump discharge in order to increase the pressure in the sealing box.

tank level.

• Increase suction pipe diameter.

• Reduce length and simplify suction pipe (use as few elbows and other ﬁttings as possible). Also see chapter 3.18 Installation.

11 • Check temperature.

• Check vapour pressure of liquid.

• Reduce pump speed. If necessary install a larger pump.

maximum speed and check NPSHr.

• Check or replace shaft seal.

• Check/provide a quench in the shaft seal.

• Connect plug Bb to the pump discharge in order to increase the pressure in the sealing box.

tank level.

• Increase suction pipe diameter.

• Reduce length and simplify suction pipe (use as few elbows and other ﬁttings as possible). Also see section 3.18 Installation.

• Increase pipe diameter.

• Reduce working pressure.

• Check accessories (ﬁlter, heat exchanger, etc.).

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Symptom Cause Remedy

Not enough capacity Viscosity too low 17 • Increase pump speed. Attention! Do not exceed

• • If pump is heated by means of heating jackets or

Axial clearance 18 • Check axial clearance and correct.

Gases come free 19 • Increase pump speed. Attention! Do not exceed

Pump too noisy Pump speed too high 20 • Reduce pump speed.

Cavitation 21 • Reduce difference between pump and suction

Back pressure too high 22 • Increase pipe diameter.

Coupling misalignment 23 • Check and correct alignment.

Vibration of base plate or pipings 24 • Make base plate heavier and/or ﬁx base plate/

Ball bearings damaged or worn 25 • Replace ball bearings.

Pump consumes too much power or becomes hot

Rapid wear Back pressure too high 30 • Increase pipe diameter.

Motor overloading Back pressure too high 34 • Increase pipe diameter.

Pump leak Gland packing leaks excessively 37 • Check or replace gland packing.

Pump speed too high 26 • Reduce pump speed.

Gland packing too tight 27 • Check or replace gland packing. Coupling misalignment 28 • Check and correct alignment.

Viscosity too high 29 • Increase axial clearance.

Solid matter in liquid 31 • Filter liquid. Pump runs dry 32 • Correct liquid supply.

Corrosion 33 • Change pump materials or application

Gland packing too tight 35 • Check and replace gland packing. Viscosity too high 36 • Increase axial clearance.

Mechanical seal leaks 38 • Replace mechanical seal.

maximum speed and check NPSHr.

• If necessary, install a larger pump.

electrical heating, reduce the heating input.

See section 3.21 Maintenance instructions.

maximum speed and check NPSHr.

• Install a larger pump

If necessary, install a larger pump.

tank level.

• Increase suction pipe diameter.

• Reduce length and simplify suction pipe (use as few elbows and other ﬁttings as possible). Also see section 3.18 Installation.

• Reduce working pressure.

• Check accessories (ﬁlter, heat exchanger, etc.).

Also see section 3.18 Installation.

pipe work better.

If necessary, install a larger pump.

Also see section 3.18 Installation.

See section 3.21 Maintenance instructions.

• Heat pump.

• Reduce pump speed.

• Increase discharge pipe diameter.

• Reduce working pressure.

• Check accessories (ﬁlter, heat exchanger, etc.)

• Provide level switch or dry running protection.

• Heat up liquid.

• Stop or reduce air sucking.

parameters.

• Reduce working pressure.

• Check accessories (ﬁlter, heat exchanger, etc.).

See section 3.21 Maintenance instructions.

• Heat pump.

• Reduce pump speed.

• Increase discharge pipe diameter.

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Symptom Cause Remedy

Rapid wear of the mechanical seal

Viscosity too high 39 • Heat the pump.

• Install a double mechanical seal

Bad de-aerating/ dry running 40 • Fill pump with liquid

• Check position of relief valve or top cover.

Temperature too high 41 • Reduce temperature.

• Install suitable mechanical seal

Too long priming period/ dry running 42 • Reduce suction line.

• Provide dry running protection.

• Check maximum allowable dry running speed for the mechanical seal.

Liquid is abrasive 43 • Filter or neutralise liquid.

• Install a double mechanical seal with hard seal faces and barrier liquid.

Note! If symptoms persist, the pump must be taken out of service immediately. Contact your local supplier.

3.20.1 Instructions for re-using and disposal

3.20.1.1 Re-use

Re-use or putting the pump out of service should only be undertaken after complete draining and cleaning of the internal parts.

Note!

When doing so, observe adequate safety regulations and take environmental protection measures. Liquids should be drained and following local safety regulations the correct personal equipment should be used.

3.20.1.2 Disposal

Disposal of the pump should only be done after it has been completely drained. Proceed according to local regulations.

Where applicable please disassemble the product and recycle the part’s material.

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3.21 Maintenance instructions

3.21.1 General

This chapter only describes operations that can be performed on-site for normal maintenance. For maintenance and repair requiring a workshop contact your local supplier.

• Insufﬁcient, wrong and/or irregular maintenance can lead to malfunctions in the pump, high repair costs and long-term inoperability. Therefore, you should carefully follow the guidelines given in this chapter.

During maintenance operations on the pump due to inspections, preventive maintenance or

removal from the installation, always follow the prescribed procedures.

Non-compliance with these instructions or warnings may be dangerous for the user and/or

seriously damage the pump/pump group.

• Maintenance operations should be performed by qualiﬁed personnel only. Always wear the required safety clothing, providing protection against high temperatures and harmful and/or corrosive ﬂuids. Make sure that the personnel read the entire instruction manual and, in particular, indicate those sections concerning the work at hand.

• SPX is not responsible for accidents and damage caused by non-compliance with the guidelines.

3.21.2 Preparation

3.21.2.1 Surroundings (on site)

Because certain parts have very small tolerances and/or are vulnerable, a clean work environment must be created during on-site maintenance.

3.21.2.2 Tools

For maintenance and repairs use only technically appropriate tools that are in good condition.Handle them correctly.

3.21.2.3 Shut-down

Before commencing the maintenance and inspection activities the pump must be taken out of service. The pump/pump unit must be fully depressurized. If the pumped ﬂuid permits, let the pump cool down to the surrounding temperature.

3.21.2.4 Motor safety

Take appropriate steps to prevent the motor from starting while you are still working on the pump. This is particularly important for electric motors that are started from a distance. Follow the below described procedure:

• Set the circuit breaker at the pump to “off”.

• Turn the pump off at the control box.

• Secure the control box or place a warning sign on the control box.

• Remove the fuses and take them with you to the place of work.

• Do not remove the protective guard around the coupling until the pump has come to a complete standstill.

3.21.2.5 Conservation

If the pump is not to be used for longer periods:

• First drain the pump.

• Then treat the internal parts with VG46 mineral oil or other preservering liquid (e.g. food grade oil for food applications).

• The pump must be operated brieﬂy once a week or alternatively the shaft must be turned a full turn once a week. This ensures proper circulation of the protective oil.

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3.21.2.6 External cleaning

• Keep the surface of the pump as clean as possible. This simpliﬁes inspection, the attached markings remain visible and grease nipples are not forgotten.

• Make sure cleaning products do not enter the ball bearing space. Cover all parts that must not come into contact with ﬂuids. In case of sealed bearings, cleaning products must not attack rubber gaskets. Never spray the hot parts of a pump with water, as certain components may crack due to the sudden cooling and the ﬂuid being pumped may spray into the environment.

3.21.2.7 Electrical installation

• Maintenance operations on the electric installation may be performed only by trained and qualiﬁed personnel and after disconnecting the electric power supply. Carefully follow the national safety regulations.

Respect the above-mentioned regulations if performing work while the power supply is still

connected.

• Check if electrical devices to be cleaned have a sufﬁcient degree of protection (e.g. IP54 means protection against dust and splashing water but not against water jets). See EN 60529. Choose an appropriate method for cleaning the electrical devices.

• Replace defective fuses only with original fuses of the prescribed capacity.

• After each maintenance session check the components of the electrical installation for visible damage and repair them if necessary.

3.21.2.8 Draining of ﬂuid

• Close off the pressure and suction lines as close as possible to the pump.

• If the ﬂuid being pumped does not solidify, let the pump cool down to the ambient temperature before drainage.

• For ﬂuids that solidify or become very viscous at ambient temperature, it is best to empty the pump immediately after shutting down by separating it from the piping. Always wear safety goggles and gloves.

• Protect yourself with a protective cap. The ﬂuid may spray out of the pump.

• Open the venting plugs Be, Bb, Bc and Bd.

• If no drain line is provided, take precautions so that the liquid is not contaminating the environment.

• Open the drain plug Ba at the bottom of the pump housing.

• Let drain the liquid by gravity.

• Purge pump spaces with ﬂush media or cleaning liquid by connecting a purge system to the following inlet openings:

- Ba, Be: the displacement part

- Ba, Bb: space behind rotor

- Ba, Bd: space behind bearing bush and first

mechanical seal in case of GS, GG and GC shaft sealing versions

- Ba, Bc: space behind bearing bush and before the

mechanical seal box in case of GD shaft sealing version

- Bc, Bd: packing area and lantern ring in case of PQ

shaft sealing version

• Re-assemble the plugs and close the valves, if any.

Bc Bd

1 ; 2

(TG H58-80 / TG H360-150)

1 ; 2

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3.21.2.9 Fluid circuits

• Depressurize the jackets and the retaining ﬂuid circuits.

• Uncouple the connections to the jackets and to the circulating or ﬂush/quench media circuits.

• If necessary, clean the jackets and the circuits with compressed air.

• Avoid any leakage of ﬂuid or thermal oil into the environment.

3.21.3 Speciﬁc components

3.21.3.1 Nuts and bolts

Nuts and bolts showing damage or parts with defective threading must be removed and replaced with parts belonging to the same ﬁxation class as soon as possible.

• Preferably use a torque wrench for tightening.

• For the tightening torques, see table below.

Ma (Nm)

Bolt

8.8 / A4

M6 10 G 1/4 20 M8 25 G 1/2 50 M10 51 G 3/4 80 M12 87 G 1 140 M16 215 G 1 1/4 250 M20 430 M24 740 M30 1500

Plug with

edge and ﬂat seal

Ma (Nm)

Plug with edge and elastic washer

3.21.3.2 Plastic or rubber components

• Do not expose components made of rubber or plastic (cables, hoses, seals) to the effects of oils, solvents, cleaning agents or other chemicals unless they are suitable.

• These components must be replaced if they show signs of expansion, shrinkage, hardening or other damage.

3.21.3.3 Flat gaskets

• Never re-use ﬂat gaskets.

• Always replace the ﬂat gaskets and elastic rings under the plugs with genuine spares from SPX.

3.21.3.4 Filter or suction strainer

Any ﬁlters or suction strainers at the bottom of the suction line must be cleaned regularly.

Note! A clogged ﬁlter in the suction piping may result in insufﬁcient suction pressure at the inlet. Clogged ﬁlter in the discharge line may result in higher discharge pressure.

3.21.3.5 Anti-friction bearings

TG H2-32 and TG H3-32 pumps are equipped with 2RS ball bearings which are grease packed for life. They do not require periodically greasing.

Starting with pump size TG H6-40, the pumps are equipped with ball bearings which could be greased periodically through a grease nipple at the bearing cover.

Recommended greases (Also consult supplier !)

Supplier NLGI-2 NLGI-3 Supplier NLGI-2 NLGI-3

BP LS2 LS3 Mobil Mobilux E P2 Chevron Polyurea EP grease-2

Esso

Fina

Gulf Crown Grease No.2 Crown Grease No.3 Total MULTIS EP 2 (*)

BEACON 2 (*) BEACON 3 LGHQ3 (*) BEACON EP2 (*) U NIREX N3 (*) LICAL EP2 CERAN HV DARINA GREASE R2 MARSON L2 Texaco Multifak EP-2

SKF

Shell

LGMT2 LGMT3

ALVANIA R2 ALVANIA R3

(*) Lubricants recommended by SPX.

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The standard “multi-purpose” grease (consistent class NLGI-2) is suitable for temperatures up to 120°C.

For higher temperatures the standard grease should be replaced by a high temperature grease (consistent class NLGI-3). This grease is, depending on the make, suitable for temperatures up to 150°C or 180°C.

When a pump will be applied in a system or under conditions facing extremely high or low temperatures, the selection of the proper lubricant and correct lubrication interval should be made in consideration with your grease supplier.

Do not mix different grades, different makes of grease together. Such a mix can cause severe damage. Consult your local grease supplier.

Relubrication

• Starting with pump size TG H6-40, the ball bearings require lubrication through the grease nipple every 5000 running hours or every 12 months (which occurs ﬁrst).

• Add a correct grade of grease (see 3.21.3.5). Do not overﬁll (see table below).

TG H pump type Bearing type Grease quantity (gram)

2-32 3302-2RS No relubrication 3-32 3302-2RS No relubrication 6-40 3204 or 5204A 5 15-50 3206 or 5206A 10 23-65 3206 or 5206A 10 58-80 3307 or 5307A 15 86-100 3308 or 5308A 20 185-125 3310 or 5310A 25 360-150 7312 BECBJ paired 40

The ball bearing type 2RS are grease ﬁlled for life and need not to be relubricated.

Both ranges ISO 3000 range and American AFBMA 5000 range are possible and have the same built in dimensions.

• When the anti-friction bearing has been relubricated 4 times it needs to be cleaned. Replace the old grease with new one or renew the anti-friction bearings.

• In the case of high temperatures, anti-friction bearings must be relubricated every 500 to 1000 running hours:

- when using grease of NLGI-2 class: for service temperatures > 90°C

- when using grease of NLGI-3 class: for service temperatures > 120°C

• When the load is extremely high, in case the grease looses much oil, anti-friction bearings need relubrication after each peak service. We recommend relubricating while the pump is still operating but after the peak load has occurred.

3.21.3.6 Sleeve bearings

We recommend checking the pump regularly for wear on the gear wheels and sleeve bearings to avoid excessive wear of other parts.

• A quick check can be done by using the front pull-out and back pull-out system. See table for maximum allowable radial clearance of the sleeve bearings.

• For replacement of the sleeve bearings contact your local supplier.

TG H pump size

2-32 to 6-40 0.10 mm 15-50 to 23-65 0.15 mm 58-80 to 86-100 0.25 mm 185-125 0.30 mm 360-150 0.35 mm

Maximum allowed radial clearances

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3.21.3.7 Shaft seals

A. Gland packing PO

• For pumps with gland packing, regularly check the packing for leaks. A slight leakage is normal.

• Regularly check connections on the lantern ring (if applicable).

• If the gland packing leaks excessively or when the pump needs serve, the old packing rings must be replaced. This can be done without disassembling bearing and bearing bracket.

1. Gland packing disassembly

1. Loosen the gland nuts (2070).

2. Push back the gland (2040) as far as possible.

3. Remove the old packing (3000) rings using a packing extractor.

4. Thoroughly clean intermediate casing and shaft.

TG H6-40 – TG H360-150

2070

2060

2040

3000

2000

2030

2080

2. Gland packing assembly

1. First bend and twist the packing ring as

Wrong

shown in the ﬁgure.

2. Wrap it around the pump shaft and

Correct

press the ring ﬁrmly against the bottom.

• Use packing seals with the right dimensions

• Do not use a sharp object to push the ring

into place as this may cut the ring

Bending and twisting packing rings

(e.g. a screwdriver). Use a halved section of piping of

3000

the correct size instead.

3. Place the following rings in the same way. Push them down one by one. Take care that the cuts in subsequent rings are rotated at 90 intervals.

TG H6-40 to TG H360-150: 5 pcs

4. After all packing rings have been mounted, push the gland (2040) against the last mounted

packing ring and tighten the nuts cross-wise by hand. Do not overtighten the nuts!

To avoid running dry, shaft gland packing must always leak a little.

3. Running-in of the pump

1. Fill the pump and start it up.

2. Allow the new packing rings to run in for a few hours. Note! During this time the gland packing will leak more than usual!

3. While running-in the pump check that it is not overheating. Pay attention to the rotating shaft!

4. After the running-in period slightly tighten the gland nuts cross-wise, until the gland packing does not leak more than a few drops per minute.

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TGGM 2-25 TGGM 3-32

TGGM 6-40/ TGGM 360-150

B. Gland packing PQ

• For pumps with gland packing, regularly check the packing for leaks. A slight leakage is normal.

• Regularly check connections on the lantern ring (if applicable).

• If the gland packing leaks excessively or when the pump needs serve, the old packing rings must be replaced. This can be done without disassembling bearing and bearing bracket.

1. Gland packing disassembly

1. Loosen the gland nuts (2070).

2. Push back the gland (2040) as far as possible.

3. Remove the old packing (3000) rings using a packing extractor.

4. The lantern ring (2020) which has grooves at its outer diameter can be removed with the aid of a small hook or a packing extractor.

5. Thoroughly clean intermediate casing and shaft.

2. Gland packing assembly

0460

2090

TG H2-32 – TG H3-32 TG H6-40 – TG H360-150

2xBi

2070

2060

3000

2xBl

2020

2040

Wrong

1. First bend and twist the packing ring as shown in the ﬁgure.

2. Wrap it around the pump shaft and press the ring ﬁrmly against the bottom.

• Use packing seals with the right dimensions

• Do not use a sharp object to push the ring into

place as this may cut the ring (e.g. a screwdriver).

Bending and twisting packing rings

Use a halved section of piping of the correct size instead.

3. Place the following rings in the same way. Push them down one by one. Take care that the cuts in subsequent rings are rotated at 90 intervals.

4. After all packing rings have been mounted, push the gland (2040) against the last mounted packing ring and tighten the nuts cross-wise by hand. Do not overtighten the nuts !

To avoid running dry, shaft gland packing must always leak a little.

Correct

2020

3000 (x2)

3000 (x3)

2000

2070

2060 2040 3000

2020

3. Running-in of the pump

1. Fill the pump and start it up.

2. Allow the new packing rings to run in for a few hours. Note! During this time the gland packing will leak more than usual!

3. While running-in the pump check that it is not overheating. Pay attention to the rotating shaft!

4. After the running-in period slightly tighten the gland nuts cross-wise, until the gland packing does not leak more than a few drops per minute.

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C. Reverted packing PR

When pumping chocolate, the packing needs to be tightened bit by bit at the (initial) start-up

in order to achieve the utmost minimum of leakage, just enough to lubricate the packing rings. Excessively leaking chocolate can overheat in the packing, causing caramelisation, resulting in extra wear of the packing. If the packing leaks excessively or when the pump needs serve, the old packing rings must be replaced. This can only be done by disassembling bearing and bearing bracket.

Regularly check the external grease supply in order to make sure that bush bearing is sufﬁciently

greased, especially at start-up. Pay attention to the compatibility of the grease with the pumped liquid.

D. Mechanical seal

If the mechanical seal leaks excessively, it must be replaced with one of the same type.

Note! The materials of the mechanical seal are selected strictly in accordance with the nature of the pumped liquid and the operating conditions. Thus the pump must only handle the liquid for which it was purchased. If the liquid or operating conditions are changed, a mechanical seal suitable for the new operating conditions must be ﬁtted.

3.21.4 Front pull-out

The TG-pumps also have a front pull-out system. To remove liquid residues or to check the idler bearing for wear, the pump cover can be pulled out from the pump housing without disconnecting suction and discharge pipes.

See chapters 4.0 Disassembly/Assembly and section 6.6 Weights.

3.21.5 Back pull-out

To ﬂush the pump or to check the sleeve bearing for wear the bearing bracket with intermediate casing, shaft and rotor can be easily pulled out backwards without disconnecting the suction and discharge pipes. When a spacer coupling is used, the driving mechanism need not be moved.

See chapters 4.0 Disassembly/Assembly and section 6.6 Weights.

3.21.6 Clearance adjustment

The TG-pumps are delivered with the correct axial clearance setting. In some cases, however, the axial clearance needs to be adjusted:

• When uniform rotor and idler wear need to be compensated.

• When the ﬂow is too low pumping low viscous liquids and the slip has to be reduced.

• When the liquid is more viscous than expected, the friction inside the pump can be reduced by increasing the axial clearance.

Proceed as follows to set the axial clearance:

Nominal axial clearance

TG H pump size (sax) [mm]

2-32 – 6-40 0.10 – 0.15 15-50 – 23-65 0.10 – 0.20 58-80 – 86-100 0.15 – 0.25 185-125 – 360-150 0.20 – 0.40

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Conical plug ISO 7/1 - R 1/2

Conical pipe end

Plug with collar ISO 228/1 - G 1/2

1. Loosen the set screws (1480).

2. Tighten the bolts (1540).

3. The pump shaft with roller bearing and rotor will be pushed against the pump cover. The axial clearance is then zero.

4. Install a gauge on the bearing bracket.

5. Position the feeler gauge against the shaft end and initialise the gauge.

6. Loosen the bolts (1540) and tighten the set screws (1480) thus pushing rotor and roller bearing backwards.

7. Tighten the set screws until the distance between shaft end and bearing bracket has been increased by the required clearance.

8. Lock the shaft again by tightening the bolts (1540). The set clearance may be changed again. Therefore, when pushing the shaft end backwards, the clearance should be enlarged by 0.02 mm.

3.21.7 Designation of threaded connections

To make clear what sealing type of threaded connection is provided we denominate them according to standards ISO 7/1 and ISO 228/1 as follows.

1480

1530

1540

TG H2-32 – TG H185-125

1530

1480

1540

TG H360-150

3.21.7.1 Threaded connection Rp (example Rp 1/2)

If no ﬂattened sealing face is provided we call the connection Rp accordingly ISO 7/1. This connection has to be sealed in the thread.The plugs or pipe connections must be provided with conical thread according to ISO 7/1 external thread (example ISO 7/1 – R1/2).

ISO 7/1 - R 1/2

ISO 7/1 Type Symbol Example

Internal thread

External thread

3.21.7.2 Threaded connection G (example G 1/2)

If the threaded connection is provided of a ﬂattened sealing face we call it G according ISO 228/1. This connection can be sealed by a gasket. The plugs or pipe connections must be provided with a sealing collar and cylindrical external thread according to ISO 228/1 (Example ISO 228/1 - G1/2).

Plugs or pipe connections provided with conical thread according to ISO 7/1 external thread (example ISO 7/1 – R1/2) can also be used.

Cynlindrical (parallel) Rp ISO 7/1 – Rp 1/2

Always conical (tappered)

R ISO 7/1 – R 1/2

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Conical pipe end ISO 7/1 - R 1/2

ISO 228/1 Clearance class Symbol Example

Internal thread

External thread

ISO 7/1 Type Symbol Example

External thread

Only one class G ISO 228/1 – G 1/2

Class A (standard)

Class B (extra clearance)

Always conical (tappered)

G ISO 228/1 – G 1/2

G...B ISO 228/1 – G 1/2 B

R ISO 7/1 – R 1/2

Page 64

4.0 Instructions for assembly and disassembly

4.1 General

Insufﬁcient or wrong assembly and disassembly can lead to the pump malfunctioning, high repair costs and long-term inoperability. Contact your local supplier for information.

Disassembly and assembly may only be carried out by trained personnel. Such personnel should be familiar with the pump and follow the instructions below.

Non-compliance with the instructions or neglecting warnings can damage the user or lead to severe damage to pump and/or pump unit. SPX is not liable for accidents and damage resulting from such neglect.

4.2 Tools

- Set of nut spanners Width 8 - width 30

- Set of hexagonal spanners Width 2 - width 14

- Shaft nut spanner HN 2-4-6-7-8-10-12

- Screwdriver

- Anti-recoil hammer Rubber, plastic, lead...

- Carton, paper, shammy

- Packing extractor For version PQ, PO, PR

- Coupling extractor

- Ball bearing extractor

- Assembly oil For example Shell ONDINA 15 Esso BAYOL 35

or lubricant For example OKS 477

- Loctite 241 Max. temperature = 150°C

- Loctite 648 Heat resistant type

- Ball bearing grease For type see section 3.21.3.5

- Measuring tool for adjustment of the axial clearance Also see section 3.21.6

- Measuring tool to measure the height Also see section 3.17.3

of the adjusting screw of the safety valve

4.3 Preparation

All activities described in this chapter need to be executed in a workshop suitable for repairs or a mobile workshop, arranged in the working environment.

Always work in a clean surrounding. Keep all sensitive parts, such as seals, bearings, mechanical shaft seals, etc. in their packaging as long as possible.

Always follow the instructions in section 3.21 with regard to:

• taking the pump out of service • back pull-out and front pull-out

• assembly of packing rings • adjusting axial clearance

• disassembly of the pump from the system • adjusting safety relief valve

• lubrication of the bearings

4.4 After disassembly

• After each disassembly carefully clean the parts and check them for damage, if any. Replace all damaged parts.

• Replace damaged parts with original components.

• When assembling, use new graphite gaskets. Never use ﬂat gaskets that have been used previously.

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1540

1510

1570

1500

1470

14801440

1430

1460

4.5 Anti-friction bearings

4.5.1 General

• Never re-use a disassembled bearing or a disassembled lock plate!

• For disassembly and assembly of the bearing (and coupling). use correct tools in order to inspect the pump without any shock loads. Shocks can damage the crisp material of bush bearings and mechanical seal.

• The anti-friction bearing has an interference ﬁt on the pump shaft and a clearance ﬁt in the bearing bracket.

• The anti-friction bearing can easily be mounted when heated to 80°C so that it slides on the pump shaft.

• Always push on the inner ring of the bearing. Pushing on the outer ring may damage the rolling parts between rotor and shaft.

• Support pump shaft at rotor side, not the rotor! Axial force on rotor - pump shaft may damage the shrunk connection.

• Anti-friction bearings type 2RS of TG H2-32 and TG H3-32 are sealed and greased for life. Bearings of the other pump sizes are to be greased at the cage.

Note! Add a correct grade and the appropriate type of grease. Do not overﬁll.

4.5.2 TG H2-32 and TG H3-32 disassembly

1. First disassemble the ﬂexible coupling half using a coupling extractor.

2. Remove key (1570), set screws (1480) and tap bolts (1540).

3. Remove the bearing cover (1470).

4. Softly tap the lip of the locking washer (1510) out of the groove of the locking nut (1500).

5. Loosen locking nut (1500) and remove it from the shaft.

6. Remove locking washer (1510).

7. Remove the bearing together with the bearing housing (1430) from the pump shaft. Use an appropriate extractor.

8. Disassemble the support ring (1460).

Disassembly and assembly of rolling bearing TG H2-32 and TG H3-32

4.5.3 TG H2-32 and TG H3-32 assembly

1. Place bearing housing (1430) and support ring (1460) on the pump shaft.

2. Fit a new bearing (1440) on the pump shaft, against the support ring (1460).

3. Fit a new locking washer (1510).

4. Fit the locking nut (1500) and ﬁx it by folding a lip of the locking washer (1510) into one of the grooves of the locking nut (1500).

5. Place the outer bearing cover against the bearing.

6. Fit set screws (1480) and tap bolts (1540).

7. Adjust axial clearance (please refer to chapter 3.21.6).

8. Fit the key (1570) and the ﬂexible coupling half.

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1530

1450 1460

1500

1570

1510

1540

1520

1490

1480

1470

1430

1440

1420

1400

TG H6-40 to TG H185-125

4.5.4 TG H6-40 to TG H360-150 disassembly

1. First disassemble the ﬂexible coupling half with the aid of a coupling extractor.

2. Remove key (1570), set screws (1480), tap bolts (1540) and long screws (1530).

3. Remove the outer bearing cover (1470) and the V-seal (1490).

4. Detach bearing bracket (1400).

5. Softly tap the lip of the locking washer (1510) out of the groove of the locking nut (1500).

6. Loosen the locking nut (1500) and remove it from the pump shaft.

7. Remove locking washer (1510).

8. Push the inner bearing cover (1430) and the V-seal (1420) away from the bearing.

9. Remove the bearing(s) (1440) from the pump shaft using the appropriate extractor.

10. Disassemble support ring (1460), outer circlips (1450) (only TG H6-40 to TG H23-65), inner bearing cover (1430) and V-seal (1420).

TG H6-40 – TG H185-125 TG H360-150

1430

1460 1400 1470

1530

1570

1510

4.5.5 TG H6-40 to TG H360-150 assembly

1. Place the V-seal (1420) and the inner bearing cover (1430) on the pump shaft.

2. Fit the outer circlips (1450) (only TG H6-40 to TG H23-65) and the support ring (1460) on the

3. Fit a new bearing (1440) on the shaft. Push it against the support ring (1460).

4. In case of TG H360-150 two ball bearings (1440) are ﬁt paired in O-conﬁguration.

5. Fit a new locking washer (1510).

6. Fit the locking nut (1500) and ﬁx it by folding a lip of the locking washer into one of the grooves

7. Grease the bearing.

8. Clean the bearing bracket (1400). Fit it on the intermediate casing with the aid of screws

9. Place both the outer and the inner bearing cover against the bearing. Hold both covers

10. Fit set screws (1480) and tap bolts (1540).

11. Adjust axial clearance (see section 3.21.6).

12. Fit the V-seal (1490), key (1570) and the ﬂexible coupling half.

Rolling bearings TG H6-40 – TG H360-150

pump shaft.

of the locking nut (1500).

(1410).

together with the aid of long screws (1530).

1420

1490

1500

1440 1540

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4.6 Relief valve

• The relief valve may not be disassembled before the spring has been released completely

• Before releasing the spring, measure the position of the adjusting bolt, so that the

spring afterwards can be adjusted to its original opening pressure

4.6.1 Disassembly

• Undo the screws (7310) and the cover (7050).

• Measure and record the exact position of the adjusting bolt (7320). (See dimension H).

• Loosen nut (7330) and adjusting screw (7320) until the spring (7150) has been completely released.

• Remove spring casing (7040) by loosening the screws (7300).

• Spring (7150), valve (7010) and valve seat (7110) are now accessible.

7050 7320 7330 7150

7310

Assembly and disassembly of the safety relief valve

4.6.2 Assembly

• Check the sealing face of both valve seat (7110) and valve (7010).

• In case of a slightly damaged surface, this can be rubbed with an appropriate emery paste. In case of severe damage however, valve seat (pay attention to shrink ﬁt) and valve must be replaced.

• Always mount a correct type of spring with the original dimensions and an appropriate adjusting screw (see section 3.17.3).

• Fit spring casing (7040) and bolts (7300).

• Fit adjusting screw (7320) and nut (7330), screwing the adjusting screw to measured distance H.

• Fix this position by tightening the nut (7330).

7040

7300

7010 7110

Remark: When another type of spring and/or adjusting bolt is mounted, the opening pressure

of the relief valve must be adjusted hydraulically.

• Fit cover (7050) and screws (7310).

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4.7 Mechanical seal

Guidelines for assembly and adjustment of the mechanical seal – pump types GS, GG and GD.

4.7.1 General

• All personnel responsible for maintenance, inspection and assembly must be adequately qualiﬁed.

• Use speciﬁc instructions coming with the mechanical seal which is to be assembled/adjusted.

• The assembling and adjusting of mechanical seals must be performed in a clean workshop.

• Use technically appropriate tools that are in good condition. Handle them correctly.

4.7.2 Preparation

Check if the mechanical seal to be mounted has the appropriate size and construction and verify if it can be assembled according to the following instructions:

• Adjusting dimensions are based on standard EN12756 (DIN24960) mechanical seals, on standard axial clearance and standard pump parts.

• With pump versions GS, GG (except sizes TG H2-32 and TG H3-32) the length of the ﬁrst mechanical seal can be equal to that of EN (DIN) L1K (short version) or that of EN (DIN) L1N (long version). The second mechanical seal of version GG always has a short length equal to DIN-L1K. The TG H2-32 and TG H3-32 allow only short L1K EN12756 (DIN24960) mechanical seals.

• Version GD always has both mechanical seals with the short length equal to EN (DIN) L1K.

• If the mechanical seal length is not according to EN12756 (DIN24960) the built-in length and distance have to be recalculated (with the aid of data given in table 4.7.7.1).

• With double mechanical seal version GD (back to back) problems can occur when assembling a seal which is shorter than L1K. In such cases some parts will have to be changed.

• Assemble the mechanical seal with pump in a vertical position with the pump cover downwards. Follow the assembling sequence as described below.

• The mechanical seal has to be adjusted without axial clearance between pum pcover and rotor. Both rotor and shaft are pushed against the pum pcover.

- The standard axial clearance is included in the adjusting distance X and Y (for X see table

4.7.7.1 and for Y see table 4.7.3).

- Check the shaft surface. Protect any sharp edge with tape or any other appropriate tool.

4.7.3 Special tools

• Conical protection bush (9010).

• Adjusting plate for adjusting distance Y=1 mm (9020) for version GG.

• Adjusting tools for adjusting distance Y (9040) for version GD.

• Adjusting blocks of different height to compose adjusting height X (versions GS and GG).

• Set of tap bolts for temporary ﬁxation of the seal cover or tools (9030 and 9050).

• Recommended lubricant: OKS477 (also appropriate for EP rubber)

• Shammy

Special tools for assembly of mechanical seal

For version Item Nos.

GS, GG, GD 9010 1 x x x x x x x

Used symbols: A: Measuring distance from bush bearing to casing X: Adjusting distance to be measured from ﬁrst mechanical seal with GS and GG (see table 4.7.7.1) Y: Adjusting distance from second mechanical seal with GG and GD (see table 4.7.3)

9020 2

9030 2 – M6x10 M6x16 M8x20 M8x20 M8x25 M10x30

9040 1

9050 2 M6x10 M6x20 M6x20 M8x20 M8x20 M8x20 M10x25

For TG H pump size

2-32/3-32 6-40 15-50/23-65 58-80 86-100 185-125 360-150

Adjusting distance Y in mm

– 1 1 1 1 1 1

Adjusting distance Y in mm

0.6 8.9 11.9 10.3 10.8 10.3 12.2

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Page 69

9010

4.7.4 General instructions during assembly

• Do not touch the mechanical seal faces with hand or ﬁngers. Fingerprints can make the mechanical seal untight. Clean the seal faces if necessary. Use a shammy.

• If the mechanical seal faces are made of non self-lubricating material, it is recommended to lubricate the faces a little with the pumped liquid or with thin oil. Do not use grease!

• Lubricate the O-rings when assembling. Take care of compliance of the lubricant and the rubber material. Never use mineral oil using EP rubber O-rings.

• When ﬁtting PTFE sealings the shaft must be very smooth. Assembly of solid PTFE sealings can be facilitated by heating the stationary ring in water at 100°C during 15 minutes. Preassemble the rotary ring on a dummy shaft and heat both ring and shaft in water at 100°C during 15 minutes. Then let everything cool off. To be tight, PTFE seals must rest for approx. 2 hours, so that the O-ring remains in its new shape.

• In cases where the mechanical seal is provided with ﬁxing screws to ﬁx the rotating part on the shaft, it is recommended to screw out the ﬁxing screws, degrease both holes and screws and lock them with Loctite (usual type 241 or heat-resistant type 648).

• If the mechanical seal is not provided with a set screw - e.g. Sealol type 043, or Burgmann MG12, a set ring with set screws must be provided. Take the set screws out of the set ring and degrease both holes and screws of the set ring.

Remark: The set ring that is delivered by SPX guarantees a reliable ﬁxation. There is no danger it will be loosened by alternating loads. SPX cannot guarantee a reliable ﬁxation with other set rings.

4.7.5 Assembly of the stationary seat

1. Fit the stationary seat(s) into the casing.

2. Use appropriate tools to push the seat perpendicularly in its housing.

3. Protect the seat face with a piece of paper or hardboard and lubricate the rubber sealing elements with a lubricant. This will facilitate the assembly.

Attention: Do not use mineral oil for EP rubber.

4. Check the perpendicularity of the seat face to the shaft-rotating axis after assembling.

4.7.6 Assembly of the rotating part

1. Lubricate the shaft a little with a lubricant.

Attention for EP rubber: Do not use mineral oil!

2. Protect the sharp edges of the shaft with tape or another protecting tool.

3. Use a conical assembling bush (9010) on the shaft step (see ﬁgure).

4. Push the rotating parts against the adjusting shoulder or set ring.

5. Provide the set screws with a drop heat-resistant Loctite and ﬁt the set screws in the rotating part. Tighten the screws.

Assembly of the rotating part

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Page 70

0410

0460

4.7.7 Adjustment of mechanical seal

4.7.7.1 GS – Single mechanical seal

1. Mechanical seal without set screws (e.g. Sealol type 043 and Burgmann type MG12) – Pump size TG H2-32 and TG H3-32

The mechanical seal is mounted against a shoulder ring (2090), see ﬁgure.

Adjusting is not necessary if the built in length of the mechanical seal corresponds to EN12756 (DIN24960) L1K length. If the mechanical seal built in length is shorter than L1K the shoulder ring width must then be adapted to the correct built in length.

2090

2200

Assembly of a mechanical seal without set ring

2. Mechanical seal ﬁxed on pump shaft by means of set screws

A. Sizes TG H2-32 and TG H3-32

To be able to assemble and to adjust those types of mechanical seal the jacket cover (0400)

and plugs (0460) must be removed as shown in the ﬁgure below. In general the shoulder ring (2090) cannot be used because the ﬁxed width of the shoulder ring does not allow the narrow tolerances necessary for this type of mechanical seal.

Adjust ﬁrst the rotating part of the mechanical seal and ﬁx it on the pump shaft by means

of the set screws. Once adjusted and ﬁxed the assembling can be continued as shown in the ﬁgure. Seal the plugs (0460) with a resin sealant suitable for higher temperature (e.g. Loctite

648). Adjusting method is the same as for the bigger pumps and is described in the next paragraphs.

0400

2200

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Page 71

B. Sizes TG H6-40 to TG H360-150

The mechanical seal must always be adjusted and ﬁxed on the pump shaft by means of set screws. For mechanical seal without set screws (e.g. Sealol, type 043 and Burgmann type MG12) a special set ring with ﬁxing screws (3030 and 3040) must be used for adjusting the mechanical seal on the pump shaft.

1. Measure distance A.

2. Look for distance X in table. If length of mechanical seal differs from standard L1K or L1N, recalculate X with data from table on page 71.

3. Place the pre-mounted pump cover (0030) on the working bench.

4. Mount gasket (1100).

5. Place at equal distance 2 or 3 adjusting distance blocks of height X on the gasket (1100). Height accuracy of X passes in steps of 0.25 mm.

6. Mount the pump casing (0010).

7. Mount idler with bush (0600) and rotor with shaft (0700).

8. Push the rotor with shaft against the pump cover (0030).

9. Assemble the rotating mechanical seal part (3010) or the set ring (3030).

10. Tighten set screws and secure screws with Loctite.

11. If a set ring (3030) is used, mount the rotating part of the mechanical seal (3010) now.

12. Remove the distance blocks.

13. Assemble the pump cover (0030) with the aid of bolts.

14. Check the smoothness of the seal faces. Clean face if necessary.

15. Lubricate the face with a drop of thin oil or pumped liquid. Do not lubricate a carbon face!

16. Assemble gasket (2080) and mechanical seal cover (2200) with the pre-mounted seat.

0040 0030

0600

1100

0602 0601 0710 Bc

0010

0701 0702

0700

1200 3040 0020 3010 2200

2080

3030

2220

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X (9060...9150)

Page 72

Values for recalculation of adjusting distance X

TG H pump type Shaft d [mm]

EN12756 (DIN24960) KU (short type) EN12756 (DIN24960) NU (long type)

[mm]

B B (with set ring)

1N-max

[mm]

2-32/3-32 16 35 46.1 0 – –

6-40 22 35.7 34.7 44.7 45 42.2

15-50/23-65 32 42.5 36.7 46.7 55 49.2

58-80 40 45 35.7 45.7 55 45.7

86-100 45 45 36.3 46.3 60 51.3

185-125 55 47.5 34.3 44.2 70 56.8

360-150 65 52.5 36.3 46.3 80 63.8

Standard length (L1k or L A = measured A = measured – for B see EN (DIN) KU

) : With non-standard length = L :

1N-max

X = A - B X = A - B - L + L1k

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Thickness dimensions for composition of adjustment height X

Shaft seal GS & GG For EN (DIN) KU mechanical seal For EN (DIN) NU mechanical seal

Dimension A [mm] TG H

Measured

lower

higher

limit

limitAmain

2-32/

3-32

B: 46.13 34.68 36.7 35.73 36.28 34.33 36.33 42.18 49.2 45.73 51.28 56.78 63.83

48.65 48.90 48.78 2.65

48.90 49.15 49.03 2.90

49.15 49.40 49.28 3.15

49.40 49.65 49.53 3.40

49.65 49.90 49.78 3.65

46.20 46.45 46.33 11.65 4.15

46.45 46.70 46.58 11.90 4.40

46.70 46.95 46.83 12.15 4.65

46.95 47.20 47.08 12.40 4.90

47.20 47.45 47.33 12.65 5.15

47.45 47.70 47.58 12.90 5.40

53.00 53.25 53.15 16.45 3.95

53.25 56.50 53.40 16.70 4.20

53.50 53.75 53.65 16.95 4.45

53.75 54.00 53.90 17.20 4.70

54.00 54.25 54.15 17.45 4.95

54.25 54.50 54.40 17.70 5.20

54.50 54.75 54.65 17.95 5.45

54.75 55.00 54.90 18.20 5.70

56.40 56.65 56.53 20.80 10.80

56.65 56.90 56.78 21.05 11.05

56.90 57.15 57.03 21.30 11.30

57.15 57.40 57.28 21.55 11.55

57.40 57.65 57.53 21.80 11.80

57.65 57.90 57.78 22.05 12.05

57.90 58.15 58.03 22.30 12.30

58.15 58.40 58.28 22.55 12.55

55.30 55.55 55.43 19.15 4.15

55.55 55.80 55.68 19.40 4.40

55.80 56.05 55.93 19.65 4.65

56.05 56.30 56.18 19.90 4.90

56.30 56.55 56.43 20.15 5.15

56.55 56.80 56.68 20.40 5.40

56.80 57.05 56.93 20.65 5.65

57.05 57.30 57.18 20.90 5.90

57.30 57.55 57.43 21.15 6.15

58.30 58.55 58.43 24.10 1.65

58.55 58.80 58.68 24.35 1.90

58.80 59.05 58.93 24.60 2.15

59.05 59.30 59.18 24.85 2.40

59.30 59.55 59.43 25.10 2.65

59.55 59.80 59.68 25.35 2.90

59.80 60.05 59.93 25.60 3.15

60.05 60.30 60.18 25.85 3.40

60.30 60.55 60.43 26.10 3.65

66.30 66.55 66.43 32.10 9.65

66.55 66.80 66.68 32.35 9.90

66.80 67.05 66.93 32.60 10.15

67.05 67.30 67.18 32.85 10.40

67.30 67.55 67.43 33.10 10.65

67.55 67.80 67.68 33.35 10.90

67.80 68.05 67.93 33.60 11.15

68.05 68.30 68.18 33.85 11.40

68.30 68.55 68.43 34.10 11.65

TG H

TG H 6-40

TG H

15-50/

58-80

23-65

Adjusting height X [mm] Adjusting height X [mm]

86-100

185-125

TG H

360-150

TG H

6-40

TG H

15-50/

23-65

58-80

TG H

80-100

TG H

185-125

TG H

360-150

Remark: EN (DIN) KU mechanical seal with set ring: substract width of set ring from adjusting height X

A.0500.351 – IM-TGH/07.02 EN (10/2015)

(normal width of set ring = 10 mm)

Page 74

(9020)

bolts (9030)

0040 0030 0010 0701 0702

0700

1200 3040 0020 3010 2200

3030

2420

1100

0602

0601

0600

Bc 2080

2080

3020

2400

4.7.7.2 GG – Double mechanical seal tandem

1. Assemble the ﬁrst mechanical seal using the same procedure as a single mechanical seal, type GS (see section 4.7.7.1).

2. Fix the mechanical seal cover (2200) with 2 bolts (9030) without tightening them. Leave the gasket (2080) uncompressed.

Assembly of double mechanical seal in tandem (GG)

3. Place 2 distance plates (9020) of 1 mm thickness (Y=1 mm) on the sealing cover (not for TG H2-32 and TG H3-32, if Y=0).

4. Assemble the second mechanical seal (3020).

5. Remove the distance plate (9020) and the two bolts (9030).

6. Mount second gasket (2080) and mechanical seal casing (2400).

4.7.7.3 GD – Double mechanical seal “Back-to-back”

1. Assemble pump casing (0010) with pump cover (0030), idler complete (0600), rotor with shaft (0700) and pre-assembled intermediate casing (0020).

2. Tighten bolts (0040/0210 and 1200).

3. Pre-mount the stationary seats into the intermediate casing (0020) and into the seal cover (2400).

4. Place the pump in a vertical position with pump cover downwards and push both rotor and shaft against the pump cover.

5. Fit the lock ring (3050) if any.

6. Check the smoothness of the seal faces. Clean the face if necessary.

7. Lubricate the faces with a drop of thin oil or pumped liquid. Do not lubricate a carbon face!

8. Mount the rotating seal part of the ﬁrst mechanical seal (3010).

9. Adjust the seal length on distance Y by means of a special U-shaped tool (9040).

(See 4.7.3 Special tools).

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Page 75

10. Lock the adjusting tool by means of 2 bolts (9050).

11. Tighten the screws of the mechanical seal and secure them with Loctite.

12. Remove the adjusting tool (9040) and the two bolts (9050).

13. Assemble the rotating part of the second mechanical seal (3020). Push it against the ﬁrst mechanical seal and secure the ﬁxing screws with Loctite.

14. Check the smoothness of the seal faces. Clean the face if necessary.

15. Lubricate the faces with a drop of thin oil or pumped liquid. Do not lubricate a carbon face!

16. Fit gasket (2080), distance ring (2600), second gasket (2080) and seal cover (2400) with the pre-mounted seat.

0600

0602

0601 1100

2620 Bc

3050

2080

2400 3020 2080

0040 0030 0010

0701

0700

0702

1200 0020 3010 2600 2420

(9040)

adjusting tool

(9050)

bolts

Assembly of a double mechanical seal “back-to-back” (GD)

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Page 76

2080

3010

2500

fixing set screws

QUENCH

G1/4

black jig (assembly tool)

DRAIN

NPT1/8 plug

4.7.7.4 GC – Mechanical seal cartridge

A. General

1. Clean the shaft and casing and check if sealing faces are in good condition. Use always a new gasket (2080) that is in good condition. Ensure that the auxiliary connection openings are in the good position and accessible for use. For exact position, see the ﬁgures and detailed instructions in the next paragraphs.

2. Lubricate the O-ring inside the shaft sleeve (for lubricant see sections 4.7.4 and 4.7.5). Use a conical assembling bush (9010) on the shaft step (see section 4.7.6). Put the cartridge on the shaft and assemble to the pump casing.

3. Bolt the cartridge seal plate securely to the pump housing. To allow the shaft turning during assembling remove the black coloured assembling jig but keep the non-coloured jigs in place. The jigs secure the right axial position of the mechanical seal and center the shaft sleeve.

4. Continue assembling of the pump and adjust axial pump clearance (see section 3.21.6).

5. Fix the shaft sleeve of the cartridge seal to the pump shaft by means of the ﬁxing set screws. Secure the set screws with Loctite. Once the cartridge is ﬁxed to the pump shaft and to the pump housing all assembling jigs must be removed. Keep the jigs in a safe place to reassemble the cartridge seal in case of disassembly for repair.

6. Plastic caps on threaded connection openings should be removed before commissioning.

7. Take the necessary safety precautions to prevent injuries during operation and maintenance by accident, e.g. liquid or steam emissions, contact with rotating parts and hot surfaces.

B. Single mechanical seal cartridge Burgmann QN3 and TN3

1. Position the cartridge according to the next ﬁgures.

2. Position the drain connection of the TN3 (1x NPT 1/8) always to the bottom.

3. On QN3 cartridge the drain connection (1x NPT 1/8) must always be plugged off or connected to a closed drain line. The normal position is to the bottom and allows drainage of quench liquid.

4. If turned to the top the opening NPT 1/8 can be used as a vent but in that case the bracket must be provided by an extra access hole.

Fig QN3 – View on arrow X

• Remove black jig (1x) before ﬁxation of shaft sleeve (allows shaft sleeve to rotate).

• Remove non-coloured jigs (3x) after pump assembly and adjusting axial clearance.

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Page 77

2080

3010

2500

fixing set screws

G1/4

DRAIN

NPT1/8

black jig

(assembly tool)

2080

3010

2500

fixing set screws

STEAM

PLUG

CONDENSE LINE NPT1/8

G1/4

Fig TN3 – View on arrow X

• Remove black jig (1x) before ﬁxation of shaft sleeve (allows shaft sleeve to rotate).

• Remove non-coloured jigs (3x) after pump assembly and adjusting axial clearance.

TN3 cartridge used with steam quench

If the TN3 cartridge is used with steam quench connect steam and condense line according to ﬁg TN3 Steam.

1. The steam can been connected to one G1/4 opening at the left or the right side of the bracket. The opposite G1/4 opening must be plugged off.

2. A condense line can been connected to the NPT 1/8 opening if any; otherwise allow this NPT 1/8 opening to open so allowing steam to expel into the atmosphere. Steam pressure must be released in such a way that only a small stream of steam is expelled into to the atmosphere.

3. Take the necessary safety precautions to prevent injuries by steam during operation and maintenance.

A.0500.351 – IM-TGH/07.02 EN (10/2015)

Fig TN3 Steam – View on arrow X

• Remove black jig (1x) before ﬁxation of shaft sleeve (allows shaft sleeve to rotate).

• Remove non-coloured jigs (3x) after pump assembly and adjusting axial clearance.

Page 78

C. Double Mechanical seal cartridge Burgmann DN3

1. Position the cartridge according to ﬁg DN3.

2. Position the G1/4 openings marked OUT and IN according to the direction of rotation of the pump shaft. To deﬁne the exact direction of rotation look on the pump shaft (see also 3.18.4). The OUT opening must be positioned at the highest top position to allow evacuation of air and gases.

3. In case the pump shall run in both directions of rotations the OUT and IN opening shall be placed following the most used or most critical direction of rotation. In case of doubt consult your supplier or Burgmann.

black jig

G1/4

fixing set screws

G1/4

OUT

G1/4

OUT

black jig

Fig DN3 – View on arrow X

• Remove black jig (1x) before ﬁxation of shaft sleeve

2080 3010 2500

(allows shaft sleeve to rotate).

• Remove non-coloured jigs (3x) after pump assembly and adjusting axial clearance.

4. Always provide a liquid quench.

If the liquid quench is non-pressurized or the pressure is lower than the pressure in the shaft seal

box the double mechanical seal acts as a tandem seal arrangement.

If the liquid quench is pressurized the double mechanical seal acts as a back to back

arrangement. In such cases the pressure of the liquid quench must be 10% higher than the maximum pressure in the shaft seal box.

Do not give too much over pressure i.e. 1.5 bar above pressure of the shaft seal box is

recommended as maximum.

Under normal circumstances the pressure in the shaft seal box is equal to the suction pressure

plus the half-differential pressure (∆p). In case of doubt measure the pressure in the shaft seal box or consult your supplier.

5. For arrangement of liquid quench see 3.18.8.3 (non-pressurized quench) and 3.18.8.4 (pressurized quench) or consult your pump supplier or Burgmann.

Remark: Double cartridge mechanical seals can also be delivered for gas quench

(= special execution). In such cases, follow the special instructions that will be received with the cartridge.

D. Triple lip-seal cartridge

The entire cartridge can be disassembled from the bareshaft pump as one single seal unit. Further disassembly of the unit requires an SPX service intervention and/or support.

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Page 79

5.0 Sectional drawings and part lists

How to order spares

When ordering spare parts, please state: 1. Pump type and serial number (see name plate)

2. Position number, quantity and description

Example: 1. Pump type: TG H58-80 R2SS BR5 BR5 PQTC Serial number: 2000-101505

2. Pos 0600, 1, Idler + Bush complete

5.1 TG H2-32 and TG H3-32

1080

0100

1090

1050

1060

0700

1100

0040

1570

1550

4000

0720

1560

0600

0460

0710

1220

1040 1030

1210

0410

1430

0010

0020

1510

1200

0460

1470

1100

0400

1580

bly

1480

1540

1400

A.0500.351 – IM-TGH/07.02 EN (10/2015)

1700

1460

1410

1610 1620 1600

}

1630

1500

1440

Page 80

{

5.1.1 Hydraulic part

Pos. Description Nos./pump Preventive Overhaul

0010 pump casing - thread connection 1 0020 intermediate casing 1 0040 tap bolt 4 0100 top cover, complete 1 0400 jacket cover, on shaft seal 1 0410 countersunk screw 4

plug PQ version 2

0460

plug Gx version 3 0600 idler + bush, complete 1 x 0700 rotor + shaft, complete 1 x 0710 bush bearing, on shaft 1 x 0720 set screw 1 1030 plug 1 1040 sealing ring 1 x x 1050 plug 2 1060 sealing ring 2 x x 1080 tap bolt 4 1090 gasket 1 x 1100 gasket 2 x x 1200 stud bolt 4 1210 plug 1 1220 sealing ring 1 x x 1570 key 1 x x 1580 nut 4 4000 pump cover 1 x

5.1.2 Bearing bracket

Pos. Description Nos./pump Preventive Overhaul

1400 bearing bracket 1 1410 cap head screw 4 1430 bearing housing 1 1440 ball bearing 1 x x 1460 support ring 1 1470 bearing cover 1 1480 set screw 2 1500 locking nut 1 1510 locking washer 1 x x 1540 tap bolt 2 1550 nameplate 1 1560 rivet 4 1600 mesh guard, complete 2

1610 Savetix® cap head screw - st. steel 4

1620 Savetix® washer - st. steel 4

1630 mesh guard - st. steel 2

1610 cap head screw 4 1700 bracket support, complete 1

5.1.3 Flange connection options

Pos. Description

0010 R1: pump casing 1

pin 0050

stainless steel

Screwed on ﬂanges (optionally)

screw on ﬂanges

9000 0060 collar piece 2 0070 loose ﬂange 2 0080 sealing ring 2 x x

Nos./

Preventive Overhaul

pump

0060

9000

0070

0080

0010

0050

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Page 81

0210

0430

5.1.4 S-jacket options

5.1.4.1 S-jacket on pump cover

Pos. Description

0200 jacket cover 1 0210 tap bolt 4 0220 gasket 1 x x 0230 cap head screw 2

Nos./

Preventive Overhaul

pump

5.1.4.2 S-jacket around shaft seal

Pos. Description

0400 jacket cover 1 0420 gasket 1 x x 0430 plug 2 0440 sealing ring 2 x x 0470 O-ring 1 x x

Nos./

Preventive Overhaul

pump

0230

0200

0470

0420

0220

0440

0430

0400

0440

5.1.5 Seal options

5.1.5.1 Packing rings – PQ

Pos. Description

2020 lantern ring, split 1 2040 gland 1 2060 stud bolt 2 2070 nut 2 2090 support ring 1 3000 packing ring 5 x x

A.0500.351 – IM-TGH/07.02 EN (10/2015)

Nos./

Preventive Overhaul

pump

2090

2070

2060

3000

2020

2040

Page 82

3050

2080

2610

2600

2620

3010 3020 2640

2430

2400

2410

5.1.5.2 Single mechanical seal – GS

Pos. Description

2080 gasket 1 x x 2090 support ring (optional) 1 2200 seal cover 1 2210 pin 1 2220 tap bolt 4 3010 mechanical seal 1 x x

Nos./

Preventive Overhaul

pump

5.1.5.3 Double mechanical seal tandem – GG

2220

2210

3010

2090

2200

2080

Pos. Description

2080 gasket 2 x x

support ring

2090

(optional) 2210 pin 1 2400 seal cover 1 2410 pin 1 2420 tap bolt 4 2440 seat housing 1 3010 mechanical seal 1 x x 3020 mechanical seal 1 x x

Nos./

Preventive Overhaul

pump

5.1.5.4 Double mechanical seal back-to-back – GD

Pos. Description

2080 gasket 2 x x 2400 seal cover 1 2410 pin 1 2430 plug 2 2600 spacer ring 1 2610 tap bolt 4 2620 seat housing 1 2640 pin 1 3010 mechanical seal 1 x x 3020 mechanical seal 1 x x

retaining ring 3050

(optional)

Nos./

Preventive Overhaul

pump

2420

2210

3010

2090

3020

2410 2440

2400

2080

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Page 83

5.2 TG H6-40 to TG H360-150

For food applications *

1101

0040

1220

0720

1210

1100

1230

4000

1240

1080

0100 1090 1050

1060

0600

1040 1030

0010

For food applications *

1102

1100

1430

1460

1420

0700

1510

1570

0710

1560

1550

1500

1440

(only for TG H6-40, TG H15-50 and TG H23-65)

1450

1520

1400

1700

0020

1480

1470

1410

1610 1620

1630

1200

1490

1530

1540

1600



* for food applications: shape of gaskets follows the shape onto the pump casing

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Page 84

5.2.1 Hydraulic part

Pos. Description H6-40 H15-50 H23-65 H58-80 H86-100 H185-125 H360-150 Preventive Overhaul

0010 pump casing 1 1 1 1 1 1 1 0020 intermediate casing 1 1 1 1 1 1 1 0040 tap bolt 4 6 6 8 8 8 12 0100 top cover, complete 1 1 1 1 1 1 1 0600 idler + bush, complete 1 1 1 1 1 1 1 x 0700 rotor + shaft, complete 1 1 1 1 1 1 1 x 0710 bush bearing, on shaft 1 1 1 1 1 1 1 x 0720 set screw 1 1 1 1 1 1 1 1030 plug 1 1 1 1 1 1 1 1040 sealing ring 1 1 1 1 1 1 1 x x 1050 plug 2 2 2 2 2 2 2 1060 sealing ring 2 2 2 2 2 2 2 x x 1080 tap bolt 4 8 8 8 8 8 8 1090 gasket 1 1 1 1 1 1 1 x x

1100* gasket 2 2 2 2 2 2 2 x x

1101* gasket 1 1 1 1 1 1 1 x x 1102* gasket 1 1 1 1 1 1 1 x x

tap bolt - 6 6 6 6 8 12 stud bolt 4 - - - - - -

1200

cap head screw - - - 2 2 - 1210 plug 1 1 1 1 1 1 1 1220 sealing ring 1 1 1 1 1 1 1 x x 1230 plug 2 2 2 3 3 3 3 1240 sealing ring 2 2 2 3 3 3 3 x x 1570 key 1 1 1 1 1 1 1 x x 1580 nut 4 - - - - - -

pump cover + idler pin, 4000

complete

* pos. 1100 applies for non-food pumps (2x per pump)

pos. 1101 and 1102 applies for food pumps (1 of each per pump)

1 1 1 1 1 1 1 x

5.2.2 Bearing bracket

Pos. Description H6-40 H15-50 H23-65 H58-80 H86-100 H185-125 H360-150 Preventive Overhaul

1400 bearing bracket 1 1 1 1 1 1 1

1410 cap head screw 4 4 4 4 4 4 4 1420 V-seal 1 1 1 1 1 1 1 x x 1430 bearing cover 1 1 1 1 1 1 1

ball-bearing -

1440

steel & metal cage 1450 circlip 1 1 1 - - - - x 1460 support ring 1 1 1 1 1 1 1 1470 bearing cover 1 1 1 1 1 1 1 1480 set screw 2 2 2 2 2 2 4 1490 V-seal 1 1 1 1 1 1 1 x x 1500 locking nut 1 1 1 1 1 1 1 1510 locking washer 1 1 1 1 1 1 1 x x 1520 grease nipple 1 1 1 1 1 1 1 1530 countersunck screw 2 2 2 2 2 2 4 1540 tap bolt 2 2 2 2 2 2 4 1550 nameplate 1 1 1 1 1 1 1 1560 rivet 4 4 4 4 4 4 4 1600 mesh guard, complete 2 2 2 2 2 2 2

1610 Savetix® cap head screw - st. steel 4 4 4 4 4 4 4

1620 Savetix® washer - st. steel 4 4 4 4 4 4 4

1630 mesh guard - st. steel 2 2 2 2 2 2 2

1610 cap head screw 4 4 4 4 4 4 4

bracket support, 1700

complete

1 1 1 1 1 1 2 x x

1 1 1 1 1 1 1

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Page 85

5.2.3 Flange connection options

Pos. Description Nos./pump Preventive Overhaul

0010 pump casing 1

0010

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Page 86

5.2.4 Jacket options

5.2.4.1 S-jacket on pump cover

0230

0210

Pos. Description H6-40 H15-50 H23-65 H58-80 H86-100 H185-125 H360-150 Preventive Overhaul

0200 jacket cover, on front 1 1 1 1 1 1 1

tap bolt 4 6 6 8 8 8 12

0210

cap head screw - 6 6 - - - -

0220 gasket 1 1 1 1 1 1 1 x x

cap head screw 4 - - 2 2 4 6

0230

tap bolt - 6 6 - - - 0240 plug 1 1 1 1 1 1 1 0250 sealing ring 1 1 1 1 1 1 1 x x

0220

0200

0250

0240

5.2.4.2 S-jacket around shaft seal

Pos. Description H6-40 H15-50 H23-65 H58-80 H86-100 H185-125 H360-150 Preventive Overhaul

0400 jacket cover, on shaft seal 2 2 2 2 2 2 2 0410 cap head screw 8 8 8 12 12 12 12 0420 gasket 2 2 2 2 2 2 2 x x 0430 plug 1 1 1 1 1 1 1 0440 sealing ring 1 1 1 1 1 1 1 x x

0420

0400

0410

0440

0430

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Page 87

5.2.4.3 T-jackets with ﬂange connections on pump cover

0310

0300

0320

0220

0200

0250

0240

0230

0210

Pos. Description H6-40 H15-50 H23-65 H58-80 H86-100 H185-125 H360-150 Preventive Overhaul

0200 jacket cover, on front 1 1 1 1 1 1 1

tap bolt 4 - - 8 8 8 12

0210

cap head screw - 6 6 - - - -

0220 gasket 1 1 1 1 1 1 1 x x

cap head screw 2 - - 2 2 4 6

0230

tap bolt - 2 2 - - - 0240 plug 1 1 1 1 1 1 1 0250 sealing ring 1 1 1 1 1 1 1 x x 0300 welding neck ﬂange 2 2 2 2 2 2 2 0310 gasket 2 2 2 2 2 2 2 x x 0320 cap head screw 8 8 8 8 8 8 8

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5.2.4.4 T-jackes with ﬂange connections around shaft seal

0420

0400

0440

0430

Pos. Description H6-40 H15-50 H23-65 H58-80 H86-100 H185-125 H360-150 Preventive Overhaul

0400 jacket cover, on shaft seal 2 2 2 2 2 2 2 0410 cap head screw 8 8 8 12 12 12 12 0420 gasket 2 2 2 2 2 2 2 x x 0430 plug 1 1 1 1 1 1 1 0440 sealing ring 1 1 1 1 1 1 1 x x 0500 welding neck ﬂange 2 2 2 2 2 2 2 0510 gasket 2 2 2 2 2 2 2 x x 0520 cap head screw 8 8 8 8 8 8 8

0410

0510

0500

0520

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5.2.5 Shaft seal options

5.2.5.1 Packing rings PQ with lantern ring

Pos. Description

2000 stufﬁng box housing 1 2010 gasket 1 x x 2020 lantern ring, split 1 2030 tap bolt 4 2040 gland 1 2050 pin 1 2060 stud bolt 2 2070 nut 2 2080 gasket 1 x x 3000 packing ring 5 x x

5.2.5.2 Packing rings PO without lantern ring

Nos./ pump

Preventive Overhaul

2050 2070 2060

2040

3000

2020

2010

2000 2030

2080

Pos. Description

2000 stufﬁng box housing 1 2030 tap bolt 4 2040 gland 1 2060 stud bolt 2 2070 nut 2 2080 gasket 1 x x 3000 packing ring 5 x x

Nos./

pump

Preventive Overhaul

5.2.5.3 Single mechanical seal – GS

Pos. Description

2080 gasket 1 x x 2200 seal cover 1 2210 pin 1 2220 tap bolt 4 3010 mechanical seal 1 x x 3030 set ring (optional) 1 3040 set screw (optional) 2

Nos./

pump

Preventive Overhaul

2070

2060

2040

3000

2000

2030

2080

2200

2210

3010

3040

3030

A.0500.351 – IM-TGH/07.02 EN (10/2015)

2220

2080

Page 90

5.2.5.4 Cartridge mechanical seal – GC

2080

3010

2500

Pos. Description

2080 gasket 1 x x 2500 tap bolt 4

cartridge

3010

mechanical seal

Nos./

Preventive Overhaul

pump

1 x x

5.2.5.5 Double mechanical seal tandem – GG

Pos. Description

2080 gasket 2 x x 2200 seal cover 1 2210 pin 1 2400 seal cover 1 2410 pin 1 2420 tap bolt 4 3010 mechanical seal 1 x x 3020 mechanical seal 1 x x 3030 set ring (optional) 1 3040 set screw (optional) 2

Nos./ pump

Preventive Overhaul

2080

2400

2410

2210 3040

3030 3010 3020

2200 2420

5.2.5.6 Double mechanical seal back-to-back – GD

Pos. Description

2080 gasket 2 x x 2400 seal cover 1 2410 pin 1 2430 plug 2 2600 spacer ring 1 2610 tap bolt 4 2620 seat housing 1 2640 pin 1 3010 mechanical seal 1 x x 3020 mechanical seal 1 x x

retaining ring

3050

(optional)

Nos./ pump

Preventive Overhaul

2080 2430 2640

3050

2410

2620

3010

3020

2400

2600

2610

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5.2.5.7 Cartridge mecanical seal - LCT TV (LCT XX)

2800 2050

2030 2860 2810

3080 3070 3060

2820 2830

2850 2840

2870 2000

2080 2010

Pos. Description H6-40

2000 stufﬁng box 1 1 2010 gasket 1 1 x x 2030 tap bolt for seal 4 4 2050 pin 1 1 2080 gasket 1 1 x x 2800 gland 1 1 2810 shaft sleeve 1 1 2820 support ring 2 2 2830 support ring for lubrication 1 1 2840 locking 2 4 2850 allen screw (for locking) 2 4 2860 set screw (for shaft sleeve) 4 4 2870 tap bolt (for gland and box) 2 2 3060 PTFE lip (gylon) 3 3 x x 3070 o-ring (viton) 2 2 x x 3080 o-ring (viton) 1 1 x x

H15-50 H23-65

H58-80

H86-100

H185-125 H360-150

Preventive Overhaul

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Page 92

2010

2080

3000

5.2.5.7 Reverted packing – Chocolate version

TG GM 6-40 to TG GM 23-65

1210

2160

2170

2110

2100

1220

1230

1240

2000

2030

2140

2130

2120

2050

2020

2060

2070

0710

TG GM 58-80 to TG GM 360-150

2160

2110

2150

2100

3000

2010

2140

2130

2120

2050

2020

2060

2070

2030

2000

2080

Pos. Description H6-40

H15-50 H23-65

H58-80

H86-100

H185-125 H360-150

Preventive Overhaul

0710 bush bearing 1 1 1 1 2000 stufﬁng box housing 1 1 1 1 2010 gasket 1 1 1 1 x x 2020 dowel pin 1 1 1 1 2030 tap bolt 4 4 4 4 2050 pin 1 1 1 1 2060 stud bolt 2 2 2 2 2070 nut 2 2 2 2 2080 gasket 1 1 1 1 x x 2100 support ring 1 1 1 1 2110 set screw 3 3 3 3 2120 pipe nipple 1 1 1 1 2130 check valve 1 1 1 1 2140 grease cup 1 1 1 1 2150 lantern ring (LR) 1 1 1 1 2160 grease nipple 1 1 1 1 2170 set screw 1 1 - -

packing ring 4 5 5 x x

3000

packing ring sequence {1+LR+3} {1+LR+4} {2+LR+3}

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vb vc

4xøvd

ma ze

Bj ea

ISO/R775

6.0 Dimensional drawings

6.1 Standard pump

6.1.1 TG H2-32 to TG H3-32

TG H2-32 TG H3-32

aa G 1 1/4

an 60

Ba G 1/4

Bb G 1/8

Be G 1/4

Bi Rp 1/8

Bj Rp 1/8

Bk Rp 3/8

da 246

db 80

dc 147

de M10

df 78

ea 34

eb 5 h9

ec 16

ed 14 j6

ma 50

mb 85

sp 17.5

va 51

vb 90

vc 115

vd 10

ve 35

vf 10

vh 55

za 90

zc 218

zd 65

ze 41

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va vb

4xøvd

ma ze

ISO/R775

6.1.2 TG H6-40 to TG H360-150

H6-40TGH15-50TGH23-65TGH58-80TGH86-100TGH185-125TGH360-150

aa 40 50 65 80 100 125 150 Ba G 1/4 G 1/4 G 1/4 G 1/2 G 1/2 G 1/2 G 3/4 Bb G 1/4 G 1/4 G 1/4 G 1/4 G 1/4 G 1/4 G 1/2 Bc G 1/4 G 1/4 G 1/4 G 1/2 G 1/2 G 1/2 G 1/2 Bd G 1/4 G 1/4 G 1/4 G 1/4 G 1/4 G 1/4 G 1/4 Be G 1/4 G 1/4 G 1/4 G 1/4 G 1/4 G 1/4 G 1/4 Bj Rp 1/4 Rp 1/4 Rp 1/4 Rp 1/4 Rp 1/4 Rp 1/4 Rp 1/4 Bk Rp 3/8 Rp 1/2 Rp 1/2 Rp 3/4 Rp 3/4 Rp 3/4 Rp 3/4 Bm – – – G 1/4 G 1/4 G 1/4 G 1/4 da 312 389 400 493 526 633 774 db 100 112 112 160 160 200 250 dc 191 209 219 297 315 380 468 de M12 M16 M16 M20 M20 M20 M20 df 78 126 126 159 162 204 199 ea 40 60 60 80 80 110 110 eb 6 h9 8 h9 8h9 10 h9 10 h9 14 h9 16 h9 ec 20.5 31 31 35 40 51.5 59 ed 18 j6 28 j6 28 j6 32 k6 37 k6 48 k6 55 m6 ef M6 M10 M10 M12 M12 M16 M20 ma 60 75 80 105 125 155 200 mb 80 75 80 100 115 155 185 sp 22 15 26 22.5 32 30.5 85 va 53 70 80 100 100 120 160 vb 100 120 130 160 160 200 270 vc 127 150 160 200 200 260 330 vd 12 12 12 14 14 18 22 ve 45 60 60 90 90 125 180 vf 11 14 14 17 17 22 24 vh 70 90 90 125 125 170 230 za 110 125 125 180 185 230 300 zb 100 125 125 160 180 200 240 zc 277 359 359 453 476 580 664 ze 61 68 80 94 109 132 168

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Page 95

øak

adacab*

øak

6.2 Flange connections

6.2.1 TG H2-32 to TG H3-32

aa 32 ab 73 ac PN16/25/40 100 ac PN20 89 ac PN50 98.5 ad PN16/25/40 140 ad PN20 120 ad PN50 135 ak PN16/25/40 4xd18 ak PN20 4xd16 ak PN50 4xd18 am PN16/25/40 32 am PN20 32 am PN50 33.5 zb 220

TG H2-32 TG H3-32

6.2.2 TG H6-40 to TG H360-150

TG H6-40 TG H15-50 TG H23-65 TG H58-80 TG H86-100 TG H185-125 TG H360-150

aa 40 50 65 80 100 125 150 ab – (*) 98 120 133 160 186 212 (*) ac PN16 110 125 145 160 180 210 241 ac PN20 98.5 120.6 139.7 152.5 190.5 216 241 ac PN25 110 125 145 160 190 220 250 ac PN40 110 125 145 160 190 220 250 ac PN50 114.5 127 149.4 168.1 200.2 235 270 ad 150 (**) 165 187 206 238 273 310 ak PN16 4xd18 4xd18 4xd18 8xd18 8xd18 8xd18 8xd23 ak PN20 4xd16 4xd18 4xd18 4xd18 8xd18 8xd22 8xd23 ak PN25 4xd18 4xd18 8xd18 8xd18 8xd22 8xd26 8xd28 ak PN40 4xd18 4xd18 8xd18 8xd18 8xd22 8xd26 8xd28 ak PN50 4xd22 8xd18 8xd22 8xd22 8xd22 8xd22 12xd23 am 18 21 21 24 25 28 30 zb 100 125 125 160 180 200 240

*) TG H6-40 and TG H360-150 (materials R and S): FF = Flat Flanges **) TG H6-40 square ﬂanges instead of rounded ﬂanges

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2xBl

ma zg zh

2xBf

6.3 Jackets

6.3.1 TG H2-32 and TG H3-32

Jackets for pump cover and thread connection, and jacket around shaft seal and thread connection (SS)

Jackets for pump cover and thread connection without jacket around shaft seal and thread connection (SO)

TG H2-32 TG H3-32

Bf G 1/4 Bg G 1/4 Bl G 1/2 Bn G 1/4 dg 59 dh 42 dk 80 dl 45 ma 50 zg 61 zh 62

No jackets for pump cover but jacket around shaft seal and thread connection (OS)

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Page 97

2xBl

2xBf

2xCf

dg dh

6.3.2 TG H6-40 to TG H360-150

Jackets for pumpcover and thread connection and jacket around shaft seal and thread connection (SS)

Jackets for pump cover and ﬂange connection and jacket around shaft seal and ﬂange connection (TT)

Jackets for pump cover and thread connection without jacket around shaft seal (SO)

Jackets for pump cover and ﬂange connection without jacket around shaft seal (TO)

No jackets for pump cover but jacket around shaft seal and thread connection(OS)

No jackets for pump cover but jacket around shaft seal and ﬂange connection(OT)

TG H6-40 TG H15-50 TG H23-65 TG H58-80 TG H86-100 TG H185-125 TG H360-150

Bf G 1/4 G 1/2 G 1/2 G 3/4 G 3/4 G 3/4 G 3/4 Bg G 1/4 G 1/2 G 1/2 G 1/2 G 1/2 G 1/2 G 1/2 Bh G 1/8 G 1/4 G 1/4 G 1/4 G 1/4 G 1/4 G 1/4 Bl G 1/4 G 1/2 G 1/2 G 3/4 G 3/4 G 3/4 G 3/4 Cf 17.2x1.8 21.3x2 21.3x2 26.9x2.3 26.9x2.3 26.9x2.3 26.9x2.3 dg 80 87 84 121 115 135 175 dh 40 50 56 78 90 130 150 dk 100 112 112 160 160 200 250 dl 73 61 61 87 92 120 130 ma 60 75 80 105 125 155 200 zg 82 96 110 123 140 163 200 zh 88 115 115 137 147 183 220 zm 108 99 99 128 133 161 171 zk 116 134 148 165 182 205 241

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6.4 Safety relief valves

6.4.1 Single safety relief valve

TG H2-32 TG H3-32

TG H6-40 TG H15-50 TG H23-65

TG H58-80

TG H2-32 TG H3-32

dv 210 254 293 303 555 581 646 852 mc 40 40 50 50 70 70 70 80 tg 145 145 200 200 – – – –

TG H6-40 TG H15-50 TG H23-65 TG H58-80 TG H86-100 TG H185-125 TG H360-150

TG H86-100 TG H185-125 TG H360-150

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6.4.2 Double safety relief valve

TG H15-50 TG H23-65

TG H58-80 TG H86-100 TG H185-125

TG H15-50 TG H23-65 TG H58-80 TG H86-100 TG H185-125

dw 393 403 666 702 767 mc 50 50 70 70 70 tv – – 178 219 219 tw 184 184 238 300 300 tz 400 400 – – –

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dn dm

6.4.3 Heated safety relief valve

TG H15-50 TG H23-65

TG H58-80 TG H86-100 TG H185-125 TG H360-150

TG H15-50 TG H23-65 TG H58-80 TG H86-100 TG H185-125 TG H360-150

Bo G 1/2 G 1/2 G 1/2 G 1/2 G 1/2 G 1/2 di 101 101 418 444 509 618 dj 119 119 458 484 549 738 dk 253 263 – – – – dm 62 59.5 98.5 103.5 103.5 135 dn 115 115 127 127 127 170 do 6.5 4 6 8 24 0 dv 293 303 555 581 646 852 mc 50 50 70 70 70 80 tg 200 200 – – – –

100

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