Edwards CDX1000, IDX1300, IDX1000 Instruction Manual

A708-01-880

Issue E Original

Instruction Manual

CDX1000 Chemical Dry Vacuum Pumps and

IDX1000 and IDX1300 Industrial Dry Vacuum Pumps

Notes: The Item Numbers listed above are for bareshaft pumps without motors. However, this manual contains

general information on pump motors. For detailed information on the specific motor fitted to the pump, refer to the Motor Instruction Manual (P600-74-000) supplied with the pump.

The CDX/IDX Pumping System Instruction Manual (P600-74-600) supplied with the system will define the

build specification of the pump; that is, the type of motor and any accessories fitted.

If the CDX pump is part of an ATEX system, an ATEX system instruction manual (P600-74-500) will be

supplied, which defines the installation, operation and maintenance requirements for ATEX compliance.

Description Item Number

CDX1000, 30 kW, 50 Hz, Flameproof with Integral Flame Arrestors A708-01-985

CDX1000, 40 h.p., 60 Hz, Flameproof with Integral Flame Arrestors A708-11-985

CDX1000, 30 kW, 50 Hz, Flameproof (without Flame Arrestors) A708-02-985

CDX1000, 40 h.p., 60 Hz, Flameproof (without Flame Arrestors) A708-12-985

IDX1000, 22 kW, 50 Hz, Safe Area A708-03-985

IDX1000, 30 h.p., 60 Hz, Safe Area A708-13-985

IDX1000, 30 kW, 50 Hz, Safe Area, Extended Performance A708-04-985

IDX1000, 40 h.p., 60 Hz, Safe Area, Extended Performance A708-14-985

IDX1300, 30 kW, DIN, Safe Area A709-04-985

IDX1300, 40 h.p., ANSI, Safe Area A709-14-985

Declaration of Incorporation

We, Edwards Limited,

Crawley Business Quarter, Manor Royal, Crawley, West Sussex, RH10 9LW, UK

declare under our sole responsibility, as manufacturer and person within the EU authorised to assemble the technical file, that the machine(s)

CDX1000, 30 kW, 50 Hz, Flameproof with Integral Flame Arrestors A708-01-985 CDX1000, 40 h.p., 60 Hz, Flameproof with Integral Flame Arrestors A708-11-985 CDX1000, 30 kW, 50 Hz, Flameproof (without Flame Arrestors) A708-02-985 CDX1000, 40 h.p., 60 Hz, Flameproof (without Flame Arrestors) A708-12-985 IDX1000, 22 kW, 50 Hz, Safe Area A708-03-985 IDX1000, 30 h.p., 60 Hz, Safe Area A708-13-985 IDX1000, 30 kW, 50 Hz, Safe Area, Extended Performance A708-04-985 IDX1000, 40 h.p., 60 Hz, Safe Area, Extended Performance A708-14-985 IDX1300, 30 kW, DIN, Safe Area A709-04-985 IDX1300, 40 h.p., ANSI, Safe Area A709-14-985

Note: The part numbers listed above are for bare shaft pumps without motors.

to which this declaration relates is intended to be incorporated into other equipment and not to function independently. The machine(s) must not be put into service until the equipment into which it is incorporated has been brought into conformity with the provisions of the Machinery Directive, 2006/42/EC.

The machine(s) is in conformity with the following standard(s) or other normative document(s)

EN1012-2:1996+A1:2009 Compressors and Vacuum Pumps. Safety Requirements.

Vacuum Pumps EN50581:2012 Technical Documentation for the Assessment of Electrical and Electronic Products with respect to the Restriction of Hazardous Substances

The relevant essential requirements of the Machinery Directive 2006/42/EC Annex 1 have been applied and fulfilled so far as practicable for this partly completed machinery. The relevant technical documentation has been compiled in accordance with Annex VII Part B. In response to a reasoned request by the national authorities, Edwards Ltd undertakes to provide relevant information on the partly completed machinery (via email).

Note: This declaration covers all product serial numbers from the date this Declaration was

signed onwards.

10.08.2015, Burgess Hill

P200-00-780 Issue E

Mr Peter Meares Senior Technical Support Manager, General Vacuum

Date and Place

This product has been manufactured under a quality management system certified to ISO 9001:2008

Contents

A708-01-880 Issue E

Contents

Section Page

1Introduction .......................................................................................1

1.1 Scope and definitions ................................................................................................... 1

1.2 Description ................................................................................................................ 2

1.3 Shaft-seals purge system ............................................................................................... 2

1.4 Air bleed - IDX1300 only ................................................................................................ 2

1.5 Temperature control system ........................................................................................... 2

1.6 Drive coupling operation ............................................................................................... 3

1.7 Hazardous area and safe area versions of the pump ............................................................... 3

1.7.1 Safe area (in relation to an external atmosphere) ................................................................. 3

1.7.2 Hazardous area ........................................................................................................... 3

1.7.3 Pumped gases ............................................................................................................ 3

1.8 Accessories ...............................................................................................................10

1.9 Normal/abnormal operation ..........................................................................................10

1.9.1 Normal operation: CDX pumps ........................................................................................ 10

1.9.2 Normal operation: IDX pumps .........................................................................................10

1.9.3 Abnormal operation: CDX and IDX pumps ...........................................................................11

2Technical data ..................................................................................13

2.1 Operating and storage conditions ....................................................................................13

2.2 Performance ............................................................................................................. 13

2.3 Mechanical data ......................................................................................................... 14

2.4 Electrical data ...........................................................................................................14

2.5 Lubrication data ........................................................................................................15

2.6 Shaft-seals purge gas supply ..........................................................................................15

2.7 Cooling water supply ...................................................................................................15

2.8 Temperature control system .......................................................................................... 16

2.9 Connections .............................................................................................................. 16

2.10 Coolant ................................................................................................................... 17

2.11 Materials of construction ..............................................................................................18

3Installation .......................................................................................25

3.1 Safety ..................................................................................................................... 25

3.2 Unpack and inspect the pump ........................................................................................25

3.3 Locate the pump ........................................................................................................26

3.3.1 Introduction .............................................................................................................26

3.3.2 Locate the pump on its mounting feet ..............................................................................27

3.3.3 Locate the pump without the mounting feet ....................................................................... 27

3.4 Check the coolant level ................................................................................................ 28

3.5 Check the oil levels .....................................................................................................28

3.5.1 Check the gearbox oil level ...........................................................................................28

3.5.2 Check the end cover oil level ......................................................................................... 28

3.6 Connect the temperature sensor (CDX pumps only) ...............................................................30

3.7 Connect the oil pressure sensors (CDX pumps only) ............................................................... 32

3.8 Connect the thermal snap-switches (IDX pumps only) ............................................................32

3.9 Connect the oil pressure switches (IDX pumps only) ..............................................................34

3.10 Pump motor electrical connections ..................................................................................34

3.10.1 Introduction .............................................................................................................34

3.10.2 Connect the electrical supply to the pump motor .................................................................35

3.10.3 Connect the thermistor outputs ...................................................................................... 35

3.11 Connect the pump to earth (ground) ................................................................................35

3.12 Check the direction of pump rotation ............................................................................... 35

3.13 Connect the cooling water supply ....................................................................................36

CG 03016 07/14

A708-01-880 Issue E

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Contents

3.14 Connect the shaft-seals purge gas supply ........................................................................... 36

3.15 Connect the pump inlet and outlet ..................................................................................37

3.15.1 Connect the pump to the process system ........................................................................... 37

3.15.2 Connect the pump outlet .............................................................................................. 38

3.16 Leak test the system ...................................................................................................39

3.17 Commission the pump .................................................................................................. 39

3.17.1 Commissioning procedure .............................................................................................39

3.17.2 Adjust the TCV (thermostatic control-valve) .......................................................................39

4Operation ........................................................................................43

4.1 Operational safety ......................................................................................................43

4.2 ATEX system control ....................................................................................................44

4.3 Non-ATEX system control .............................................................................................. 44

4.3.1 Start the pump ..........................................................................................................44

4.3.2 Allow the pump to warm up ..........................................................................................44

4.3.3 Shut down the pump ................................................................................................... 45

5Maintenance .....................................................................................47

5.1 Safety information ...................................................................................................... 47

5.2 Maintenance plan .......................................................................................................47

5.3 Check the oil levels .....................................................................................................48

5.3.1 Check the gearbox oil level ...........................................................................................48

5.3.2 Check the end cover oil level ......................................................................................... 48

5.4 Check the shaft-seals purge gas supply .............................................................................50

5.5 Check the coolant level and refill if necessary ....................................................................50

5.5.1 Check the coolant level ................................................................................................50

5.5.2 Drain the coolant and refill the pump with a different coolant .................................................51

5.6 Remove the inlet filter (if necessary) ...............................................................................51

5.7 Inspect the pipelines and connections ..............................................................................51

5.8 Change the oil and oil filters, drain the vent filters, and clean the oil level sight-glasses .................52

5.8.1 Drain the end cover oil and clean the end cover sight-glasses ..................................................52

5.8.2 Change the end cover oil filter ....................................................................................... 52

5.8.3 Drain the end cover vent filter .......................................................................................53

5.8.4 Fill the end cover with new oil .......................................................................................53

5.8.5 Drain the gearbox oil and clean the gearbox sight-glasses ....................................................... 55

5.8.6 Change the gearbox oil filter ......................................................................................... 55

5.8.7 Drain the gearbox vent filter ......................................................................................... 56

5.8.8 Fill the gearbox with new oil ......................................................................................... 56

5.9 Flush the pump with cleaning solution ..............................................................................56

5.10 Clean the cooling system ..............................................................................................58

5.10.1 Drain the coolant from the cooling system .........................................................................59

5.10.2 Clean the cooling water filter ........................................................................................59

5.10.3 Clean the heat exchanger ............................................................................................. 59

5.10.4 Clean the coolant level sight-glass ................................................................................... 60

5.10.5 Prepare the pump for operation ..................................................................................... 60

5.11 Replace the pump motor ..............................................................................................60

5.11.1 Remove the pump motor ..............................................................................................60

5.11.2 Fit the new pump motor ............................................................................................... 63

5.11.3 Check the direction of pump rotation ............................................................................... 64

5.12 Replace the flexible coupling insert ................................................................................. 64

5.13 Clear a hydraulic lock (when necessary) ............................................................................ 65

5.14 Clean the vent adaptor ................................................................................................65

5.15 Change the bearings and seals ........................................................................................ 67

5.16 Clean/change the air bleed filters IDX1300 only .................................................................. 67

5.17 Fault finding .............................................................................................................67

6Storage and disposal ...........................................................................71

6.1 Storage ...................................................................................................................71

Contents

A708-01-880 Issue E

6.2 Disposal ................................................................................................................... 71

7Service, spares and accessories ..............................................................73

7.1 Introduction ............................................................................................................. 73

7.2 Service .................................................................................................................... 73

7.3 Spares and maintenance kits ..........................................................................................73

7.4 Accessories ...............................................................................................................73

Index .............................................................................................. 75

For return of equipment, complete the HS Forms at the end of this manual.

Illustrations

Figure Page

1The IDX pump (Sheet 1 of 2) ...........................................................................................4

2The IDX1300 pump (Sheet 1 of 2) .....................................................................................6

3The CDX pump (Sheet 1 of 2) ..........................................................................................8

4IDX1000 Dimensions: mm (inch) ......................................................................................19

5IDX1300 Dimensions: mm (inch) ......................................................................................20

6CDX Dimensions: mm (inch) ...........................................................................................22

7Fill the Pump with Coolant ............................................................................................29

8Connect the CDX Temperature Sensor .............................................................................. 31

9Connect the IDX Thermal Snap-Switches ............................................................................33

10 Change the Oil Filters and Clean the Oil Level Sight-Glasses .................................................... 54

11 Flush the pump with cleaning solution .............................................................................. 58

12 Clean the Cooling System - CDX/IDX1000 ........................................................................... 61

13 Clean the Cooling System - IDX1300 .................................................................................62

14 Pump Motor and Drive Coupling ...................................................................................... 66

15 Clean the vent adaptor ................................................................................................68

16 Air bleed filter element cleaning/replace .......................................................................... 68

Tables

Table Page

1Operating and Storage Conditions .................................................................................... 13

2Performance Data ......................................................................................................13

3Mechanical Data ........................................................................................................14

4Electrical Data ..........................................................................................................14

5Lubrication Data ........................................................................................................15

6Shaft-seals purge gas supply data ....................................................................................15

7Cooling water supply data .............................................................................................15

8Temperature Control System Data ...................................................................................16

9Connections ..............................................................................................................16

10 Possible Alternative Coolants ......................................................................................... 17

11 Construction Materials .................................................................................................18

12 TCV Settings ............................................................................................................. 40

13 Minimum Pump Operating Temperatures (°C) .....................................................................40

14 Minimum Pump Operating Temperatures (°F) ..................................................................... 41

15 Maintenance Plan .......................................................................................................49

16 Fault finding .............................................................................................................69

17 Spares and Maintenance Kits .......................................................................................... 74

A708-01-880 Issue E

Edwards and the Edwards logo are trademarks of Edwards Limited.

Contents

Associated publications

Publication title Publication number

Vacuum pump and vacuum system safety P400-40-100

Introduction

A708-01-880 Issue E

1Introduction

1.1 Scope and definitions

This manual provides installation, operation and maintenance instructions for the Edwards CDX1000 chemical dry vacuum pumps and the IDX1000 and IDX1300 industrial dry vacuum pumps. The pump must be used as specified in this manual. Read this manual before installing and operating the pump.

Important safety information is highlighted as WARNING and CAUTION instructions; these instructions must be obeyed. The use of WARNINGS and CAUTIONS is defined below.

CAUTION

Cautions are given where failure to observe the instruction could result in damage to the equipment, associated equipment and process

The following warning labels are on the pump:

The units used throughout this manual conform to the SI international system of units of measurement.

WARNING

Warnings are given where failure to observe the instruction could result in injury or death to people.

Warning - refer to accompanying documentation.

Warning - risk of electric shock.

Warning - hot surfaces.

Protective earth (ground).

Warning - Edwards offer European customers a recycling service.

A708-01-880 Issue E

Edwards and the Edwards logo are trademarks of Edwards Limited.

Introduction

1.2 Description

The CDX and IDX pumps are rugged, reliable dry vacuum pumps designed specifically for use in the chemical and pharmaceutical industries, and in industrial processing applications.

The CDX and IDX pumps are single stage pumps which use the screw principle, in which a pair of intermeshing, noncontacting rotors are held in correct phase relation by a pair of timing-gears. The gears and the double-row angular contact ball bearings are oil lubricated.

The double-ended design means that the bearings, seals and gearbox remain at atmospheric pressure, and that axial loading on the bearings is minimal.

1.3 Shaft-seals purge system

Refer to Figure 1, 2 and 3, detail C. The shaft-seals purge pipelines (24) deliver an air or nitrogen purge to the shaft- seals. This purge:

 Ensures that the shaft-seals are maintained at a positive pressure during pump operation.

 Prevents the entry of corrosive or toxic process vapours into the pump gearbox.

 Prevents contamination of t he process gases by pump oil.

 Prevents damage to the shaft-seals by debris.

Note: Accessory kits are available to provide gas ballast, inlet and exhaust purge facilities on the pump: refer

to Section 7.4.

1.4 Air bleed - IDX1300 only

CAUTION

Blockage of the air bleed intake and/or the filter element will lead to seizure of the pump.

Refer to Figure 2. The IDX1300 is fitted with a permanent atmospheric air bleed at each end of the pump.

Refer to Section 5.16 for details of how to clean/replace the filter element.

1.5 Temperature control system

Refer to Figure 1, 2 and 3. The CDX and IDX pumps have an indirect cooling system. A coolant circulation pump (driven by the vacuum pump mechanism) circulates secondary coolant, in a closed loop, through jackets around the pump body, and through oil coolers. A heat exchanger in the circuit transfers heat to the primary coolant (that is, cooling water).

The primary coolant supply passes through a filter (Figure 12, item 20).

In operation, the pump is maintained at a constant temperature by a thermostatic control-valve (TCV, 17) which controls the supply of primary coolant (cooling water) to the heat exchanger.

The heat exchanger has a pressure cap and a coolant overflow pipe (Figure 7, item 4). As the temperature of the pump body increases, and the secondary coolant expands, excess coolant may be discharged from this pipe.

Two positive displacement oil pumps located in the gearbox and the end cover circulate oil (through a filter) to cool and control the temperature of the rotors, and to lubricate the bearings and gears.

The oil circulates through oil coolers (10, 22). The oil coolers are plate heat exchangers, in which heat is transferred from the oil to the secondary coolant.

Each oil circuit is also fitted with a pressure switch (IDX) or transmitter (CDX) to protect against loss of oil supply.

Introduction

A708-01-880 Issue E

Refer to Figure 1. IDX pumps have a thermal snap-switch box (9) on the end cover which contains two thermal snap-switches and a pressure switch (32) attached to the oil supply pipe at each end:

 Connect the shut-down thermal snap-switch to a suitable control circuit to shut down the pump if it

overheats: refer to Section 3.7.

 Connect the two pressure switches to a suitable control circuit to shut the pump down if either of the oil

circuits loses pressure. This is most easily done by wiring them in series. The shut-down thermal snap switch can be wired in series with the two pressure switches to shut down the pump if any one of the three switches trip.

 Connect the warning thermal snap-switch to the control equipment to provide an indication that the pump is

too hot: refer to Section 3.7.

Refer to Figure 3. CDX pumps have a temperature sensor (9) fitted to the end cover and a pressure transmitter (32) attached to the oil supply pipe at each end. Connect these sensors to a suitable control circuit, in order to shut down the pump if it overheats or if either of the oil circuits loses pressure, refer to Section 3.6.

1.6 Drive coupling operation

The pump has a flexible drive coupling which transmits the drive from the pump motor to the pump rotors.

Refer to Figure 14. A coupling hub (10) is fitted to the pump shaft (14) and a drive hub (19) is fitted to the motor shaft (4). A flexible insert (18) fits between the two hubs.

1.7 Hazardous area and safe area versions of the pump

1.7.1 Safe area (in relation to an external atmosphere)

A safe area is one where there is no possibility of a potentially explosive atmosphere existing, therefore it is not necessary to take special precautions to avoid mechanical or electrical ignition sources.

1.7.2 Hazardous area

A hazardous area (in relation to an external atmosphere) is one where there is the possibility of a potentially explosive atmosphere existing, therefore it is necessa ry t o take spe cial prec aut ions to avoid mechanical or electrical ignition sources.

1.7.3 Pumped gases

Hazardous gases and vapours can be defined as materials that could be one or more of the following:

 To xi c

 Corrosive

 Pyrophoric

 Flammables in the flammable range

 Oxidants

 Flammables below the upper flammability limit.

Pumps that are suitable for pumping hazardous gases and vapours have a leak tightness specification of better than 10

-3

mbar l s.

A708-01-880 Issue E

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Introduction

Figure 1 - The IDX pump (Sheet 1 of 2)

1. Pump motor (typical)

2. Motor terminal box (typical)

3. Gearbox vent filter

4. Gearbox oil filler plug and bonded seal (in filler port)

5. Heat exchanger

6. Pump inlet

7. End cover vent filter

8. End cover oil filler plug and bonded seal (in filler port)

9. Thermal snap-switch box

10. End cover oil cooler

11. End cover oil level sight-glass (2 off

)

12. Mounting brackets (4 off)

13. Mounting pads (4 off, between items 12 and 14)

14. Mounting feet (4 off, box section)

15. Cooling water outlet

16. Pump outlet

17. TCV (thermostatic control valve)

18. Gearbox oil level sight-glass (2 off

)

19. Cooling water inlet

20. Coupling cover (2 off

)

21. Motor fan

22. Gearbox oil cooler

23. Lifting-bolts (4 off)

24. Shaft-seals purge pipelines

25. Shaft-seals purge inlet

26. Sight-glass bezel

27. Temperature measurement area

28. Earth (ground) stud

29. Nut (on tube fitting)

30. Vent filter body top

One on each side of the pump

32. Pressure switch

Introduction

A708-01-880 Issue E

Figure 1 - The IDX pump (Sheet 2 of 2)

A708-01-880 Issue E

Edwards and the Edwards logo are trademarks of Edwards Limited.

Introduction

Figure 2 - The IDX1300 pump (Sheet 1 of 2)

1. Pump motor (typical)

2. Motor terminal box (typical)

3. Gearbox vent filter

4. Gearbox oil filler plug and bonded seal (in filler port)

5. Heat exchanger

6. Pump inlet

7. End cover vent filter

8. End cover oil filler plug and bonded seal (in filler port)

9. Thermal snap-switch box

10. End cover oil cooler

11. End cover oil level sight-glass (2 off

)

12. Mounting brackets (4 off)

13. Mounting pads (4 off, between items 12 and 14)

14. Mounting feet (4 off, box section)

15. Cooling water outlet

16. Pump outlet

17. TCV (thermostatic control valve)

18. Gearbox oil level sight-glass (2 off

)

19. Cooling water inlet

20. Coupling cover (2 off*)

21. Motor fan

22. Gearbox oil cooler

23. Lifting-bolts (4 off)

24. Shaft-seals purge pipelines

25. Shaft-seals purge inlet

26. Sight-glass bezel

27. Temperature measurement area

28. Earth (ground) stud

29. Nut (on tube fitting)

30. Vent filter body top

31. Air Bleed

One on each side of the pump

32. Pressure switch

Introduction

A708-01-880 Issue E

Figure 2 - The IDX1300 pump (Sheet 2 of 2)

A708-01-880 Issue E

Edwards and the Edwards logo are trademarks of Edwards Limited.

Introduction

Figure 3 - The CDX pump (Sheet 1 of 2)

1. pump motor (typical)

2. Motor terminal box (typical)

3. Gearbox vent filter

4. Gearbox oil filler plug and bonded seal (in filler port)

5. Heat exchanger

6. Pump inlet

7. End cover vent filter

8. End cover oil filler plug and bonded seal (in filler port)

9. Temperature transmitter

10. End cover oil cooler

11. End cover oil level sight-glass (2 off

)

12. Mounting brackets (4 off)

13. Mounting pads (4 off, between items 12 and 14)

14. Mounting feet (4 off, box section)

15. Cooling water outlet

16. Pump outlet

17. TCV (thermostatic control valve)

18. Gearbox oil level sight-glass (2 off

)

19. Cooling water inlet

20. Coupling cover (2 off

)

21. Motor fan

22. Gearbox oil cooler

23. Lifting-bolts (4 off)

24. Shaft-seals purge pipelines

25. Shaft-seals purge inlet

26. Sight-glass bezel

27. Temperature measurement area

28. Earth (ground) stud

29. Nut (on tube fitting)

30. Vent filter body top

Not e: This Figure shows a CDX with integral flame

arrestors. The inlet and outlet configuration on a CDX without integral flame arrestors is as shown in Figure 1.

One on each side of the pump

32. Pressure transmitter

Introduction

A708-01-880 Issue E

Figure 3 - The CDX Pump (Sheet 2 of 2)

A708-01-880 Issue E

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Introduction

Non hazardous gases and vapours do not constitute a hazard should they leak into the external environment or should the pump develop an inward air leakage, this could include one or more of the following:

 Vapo urs

 Inert gases

 Materials below the lower flammability limit

 Non toxic materials

 Non corrosive materials.

Pumps that are suitable for pumping non hazardous gases and vapours cannot be guaranteed not to leak small amounts of gas (greater than 10

-3

mbar l s) into or out of the pump, therefore it has to be assumed that there is the

possibility for some pumped gases to be present in the external atmosphere.

Note: Where pumps suitable for non hazardous gases and vapours are used to pump inert gases they should be

located in a well ventilated area in order to avoid the possibility of asphyxiation.

The CDX pumps are suitable for Hazardous Area operation. Refer to the CDX pumping system instruction manual which will specify the technical specification and hazard classification of the system.

IDX pumps are only suitable for Safe Area operation: see Section 1.9.2.

1.8 Accessories

A number of accessories are available for the CDX and IDX pumps; use these to configure the pump for specific applications.

These accessories are listed in Section 7.4.

1.9 Normal/abnormal operation

1.9.1 Normal operation: CDX pumps

In normal operation, depending on the flame arrestors fitted and the level of systemisation, CDX pumps are safe to handle gases as follows:

External

Ex II 2 G c k IIB, IIC T3, T160, T4

Internal

Ex II 1,2 G B3, IIB T3, T4

To find out which certification has been assigned to the pumping syst em, refer to the system nameplate and specific system documentation.

If the CDX pump is part of a hazardous area system, it may be fitted with integral or external flame arrestors: refer to the CDX pumping system instruction manual.

If the CDX pump is part of an ATEX system, it may be fitted with integral or external flame arrestors: refer to the ATEX system instruction manual.

1.9.2 Normal operation: IDX pumps

IDX pumps are designed for Safe Area applications only.

Do not use the IDX pump in hazardous areas, or pumping hazardous gases/dusts.

Introduction

A708-01-880 Issue E

1.9.3 Abnormal operation: CDX and IDX pumps

 Use of the pump as a positive pressure compressor.

 Use of the pump while subjected to high back-pressure (for example, caused by a blockage in the exhaust

pipeline). Refer to Section 2.2 for the system limitation.

 Pumping gases that cause the inlet flame arrestor (where fitted) or associated pipelines to exceed a surface

temperature of 60 °C (140 °F).

 Pumping of gases with a temperature above 60 °C at the inlet of the pump.

 Reverse rotation of the pump.

 Pumping hydrocarbon oxides.

 Pumping gases that tend to self-decompose, or that are chemically unstable.

 Pumping gases of a higher gas group than allowed by the pumping system certification.

 Pumping of group IIC gases.

 Use of the pump with materials which have auto-ignition temperatures below the defined temperature

rating.

 Operation such that the pump inlet temperature falls below the dew point of a flammable vapour being

pumped. This could lead to condensate that can collect and lead to the risk of corrosion or an ignition hazard.

 Pumping of, or use of the pump in the presence of, explosive dust atmospheres.

 Use of the pump in ambient conditions other than those specified in Section 2.1.

 Pumping pyrophoric gases.

 Use with oxygen enriched atmospheres.

 Use in an external atmosphere where there is a potentially flammable dust atmosphere.

 Use of the pump in a potentially explosive external atmosphere, unless the pumping system is certified as

compliant with ATEX Directive 94/9/EC (European Union only).

WARNING

Misuse of the CDX or IDX pump as described below is strictly prohibited.

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Technical data

A708-01-880 Issue E

2Technical data

2.1 Operating and storage conditions

Ta bl e 1 - Ope ra ti ng a nd S to ra ge Co nd it io ns

2.2 Performance

Ta bl e 2 - Pe rf or ma nce D at a

Ambient operating temperature range

*†

Ambient storage temperature range

Consult Edwards for advice on operation of the pump in ambient temperatures below -5 °C (23 °F).

†

The pump must be heated to at least +5 °C before starting.

-20 to 40 °C (-4 to 104 °F)

-20 to 50 °C (-4 to 122 °F)

Maximum ambient operating humidity Maximum operating altitude

90% RH 1000 m (3300 ft)

Typ ic al w ar m- up t ime

‡

Cool-down time (to a safe temperature for maintenance) Normal surface temperature of the pump at ultimate vacuum: Case (water jacket) End cover and gearbox (oil)

‡

To a p u mp c as e t em pe ra tu r e of 6 5 ° C (1 49 ° F ).

90 minutes

3 hours

65 to 90 °C (149 to 194 °F) 80 to 105 °C (176 to 221 °F)

Typ ic al c on ti nu ou s A- wei gh te d sound pressure level at ultimate vacuum 82 dB(A)

CDX/IDX1000 IDX1300

Minimum pumping speed Displacement (swept volume) Ultimate vacuum

800 m

3 h-1

(470 cfm)

1110 m

3 h-1

(655 cfm)

5 x 10

-2

mbar, 5 Pa, 0.04 Torr

1100 m

3 h-1

(649 cfm)

1440 m

3 h-1

(850 cfm)

5 x 10

-2

mbar, 5 Pa, 0.04 Torr

Pump rotational speed Maximum outlet pressure

4300 r min

-1

(4300 r.p.m.)

1.15 bar absolute, 1.15 x 10

Pa,

16.7 psi

5185 r min

-1

(5185 r.p.m.)

1.05 bar absolute, 1.05 x 10

Pa,

15.3 psi

A708-01-880 Issue E

Edwards and the Edwards logo are trademarks of Edwards Limited.

Technical data

2.3 Mechanical data

Ta bl e 3 - Me ch an ic al Da ta

2.4 Electrical data

Note: The CDX temperature sensor and oil pressure sensors are safety-critical devices for ATEX systems. If

applicable, refer to the ATEX system instruction manual for details.

Ta bl e 4 - El ec tr ic al Da ta

Dimensions See Figures 4, 5 and 6

CDX1000 mass (maximum) 30 kW, 50 Hz, Flameproof with Flame Arrestors 40 h.p., 60 Hz, Flameproof with Flame Arrestors 30 kW, 50 Hz, Flameproof 40 h.p., 60 Hz, Flameproof

Pump and motor

1810 kg (3985 lb) 1805 kg (3965 lb) 1710 kg (3765 lb) 1705 kg (3745 lb)

Motor only

310 kg (685 lb) 305 kg (665 lb) 310 kg (685 lb) 305 kg (665 lb)

IDX1000 mass (maximum) 22 kW, 50 Hz, Safe Area 30 h.p., 60 Hz, Safe Area 30 kW, 50 Hz, Safe Area 40 h.p., 60 Hz, Safe Area IDX1300 30 kW Safe Area IDX1300 40 h.p. Safe Area

Pump and motor

1575 kg (3460 lb) 1630 kg (3585 lb) 1640 kg (3610 lb) 1705 kg (3745 lb) 1640 kg (3610 lb) 1705 kg (3745 lb)

Motor only

175 kg (380 lb) 230 kg (505 lb) 240 kg (530 lb) 305 kg (665 lb) 240 kg (530 lb) 305 kg (665 lb)

Cleaning solution required to flood the pump cavities (see Section 5.9)40 l (10.56 US gal)

Nominal electrical supply Vol t age tole ranc e Full load current No load current

Refer to the motor manual supplied with the pump Refer to the motor manual supplied with the pump Refer to the motor manual supplied with the pump Refer to the motor manual supplied with the pump

Starting current/time Recomm ended electrical supply cable size

Refer to the motor manual supplied with the pump Refer to the motor manual supplied with the pump

Te mp er a t ur e s en so r an d o il p r e ss u re s en s o rs (CDX only: see note above)

Supply voltage Signal current

24 V d.c. 4 to 20 mA

Thermal snap-switches (IDX only) contact ratings

Maximum voltage

Maximum current (resistive load)

24 V a.c./d.c. 2 A

Technical data

A708-01-880 Issue E

2.5 Lubrication data

Note: An Edwards Material Safety Data Sheet for the oil referenced below is available on request.

Ta bl e 5 - Lub ri cat io n Da ta

2.6 Shaft-seals purge gas supply

Note: The compressed gas supply must be dry.

Use a nitrogen purge if operating a CDX pump with an oil temperature (measured on the end cover) higher than 95 °C (203 °F): see Section 3.14.

Ta bl e 6 - Sh af t- se al s pu rg e ga s su pp ly da ta

2.7 Cooling water supply

Table 7 - Cooling water supply data

Gearbox

Oil capacity

Minimum Maximum

Recomm ended oil (supplied)

5 l (1.32 US gal)

5.5 l (1.45 US gal) Mobil SHC 629

End cover

Oil capacity

Minimum Maximum

Recomm ended oil (supplied)

5 l (1.32 US gal)

5.5 l (1.45 US gal) Mobil SHC 629

Suitable compressed gases Dry air or nitrogen

Purge gas supply pressure 2 to 10 bar, 2 x 10

to 1 x 106 Pa, 29 to 145 psi

Regulated pressure to shaft-seals

Above exhaust back-pressure

0.3 to 0.5 bar, 3 x 10

to 5 x 104 Pa, 5 to 7 psi

Supply temperature range Maximum supply pressure Minimum flow rate

Typ ic al h ea t re mo ve d fr o m pum p

With a supply temperature of 20 °C (68 °F).

5 to 35°C (41 to 95 °F) 10 bar, 1 x 106 Pa, 145 psi 10 l min

-1

, 2.64 US gal min-1

10 kW (13.4 h.p.)

A708-01-880 Issue E

Edwards and the Edwards logo are trademarks of Edwards Limited.

Technical data

2.8 Temperature control system

Note: The CDX temperature sensor senses the temperature of the oil in the end cover, and is a safety-critical

device for ATEX systems. If applicable, refer to the ATEX system instruction manual for details.

Ta bl e 8 - Temp er at ur e Con tr ol S ys te m Da ta

2.9 Connections

Tab le 9 - C on ne cti on s

WARNING

If the CDX pump is part of an ATEX system, there may be an operating case temperature limit. Refer to the ATEX system instruction manual for details.

Water coo lin g s yst em

Ty pe Coolant capacity

TCV (Thermostatic Control Valve)

Sensor operating temperature range Maximum sensor temperature

CDX temperature sensor (see Note above)

Ty pe Sensing range

IDX warning thermal snap-switch

Opening temperature Closing temperature

IDX shut-down thermal snap-switch

Opening temperature Closing temperature

Indirect water-to-coolant heat exchanger 50 l (13.2 US gal)

10 to 80 °C (77 to 176 °F) 130 °C (266 °F)

Platinum resistance thermometer (PRT) 0 to 200 °C (32 to 392 °F)

88 °C (190 °F) 78 °C (172 °F)

95 °C (203 °F) 85 °C (185 °F)

Proce ss co nnections

Pump inlet Pump outlet Recomm ended inlet and outle t seals

Cooling water connections

Supply inlet Return outlet

Shaft-seals purge gas inlet

150 DIN

or 6 inch ANSI

†

80 DIN* or 3 inch ANSI

†

PTFE envelope gaskets: Klinger milled type with a

1.5 mm (0.06 inch) full-face insert

½ inch BSP male

or ½ inch NPT male

†

½ inch BSP male

or ½ inch NPT male

†

¼ inch compression

50 Hz pumps

†

60 Hz pumps

Technical data

A708-01-880 Issue E

2.10 Coolant

The pump is supplied filled with Edwards coolant which is monopropylene based, and is both an antifreeze and a corrosion inhibitor. Spare Edwards coolant is available: refer to Section 7.3. A Material Safety Data Sheet for the coolant is available on request.

If using another coolant type to replenish lost coolant:

 It must prevent the formation of visible oxide sludge and scale deposits.

 It must provide frost protection down to a temperature of -14 °C (7 °F), when mixed in accordance with the

manufacturer’s recommendations.

 It must be compatible with the materials of construction of the cooling system; that is: SG iron, copper,

brass, aluminium, stainless steel, rubber (hoses) and fluoroelastomer (Viton) seals.

 It must comply with the requirements of BS 6580-1992 and BS 5117.

 It must be based on monopropylene glycol or ethylene glycol fluid.

 It must not contain amines.

The coolants shown in Table 10 may be suitable for use in the CDX and IDX pumps. All of these coolants are amine free, automotive grade, ethylene glycol antifreezes and must be d i luted to b etw e en 35% t o 50% by v o lume w i th wat er to provide the required cooling protection. However, Edwards recommends the use of Edwards coolant; Edwards cannot guarantee other types of coolant will provide the best corrosion protection for the pump.

Ta bl e 10 - Po ss ib le A lt er na ti ve C ool an ts

Manufacturer Product

BP (Chemicals) Te xa co L ub r ic an ts Castrol

NAPGEL C2230 (Universal) Te xa co E ng i ne C o o la n t ET X 60 2 4 Castrol Antifreeze

A708-01-880 Issue E

Edwards and the Edwards logo are trademarks of Edwards Limited.

Technical data

2.11 Materials of construction

Note: A Material Safety Data Sheet for Fluoroelastomer (Viton) is available on request.

Ta bl e 11 - Co ns tru ct io n Ma te ri als

Figure 4 - IDX1000 Dimensions: mm (inch) (key)

A. Side view B. Plan view C. End view D. Front fixing dimensions with mounting feet removed

1. Pump inlet

2. Pump outlet

3. Fixing-holes: Ø18 mm (0.71 inch), 2 holes on each mounting foot

4. Fixing-holes: Ø17 mm (0.67 inch), 2 holes on each mounting bracket

Component Material(s)

Stators and W/C plates Rotors Gear/end covers Inlet flange and exhaust manifold

SG iron SG iron SG iron SG iron

Coupling cover Bearings, gears and oil pumps Layshaft Heat exchanger Oil coolers and pipelines

Grey iron Steel Steel Aluminium/copper Stainless steel

Coolant pump Hoses Hose fittings

SG iron/PPS/Neodymium magnets Rubber Brass/iron

Seals purge pipelines and fittings Shaft seals O-rings

Stainless steel PTFE (polytetrafluoroethylene) Fluoroelastomer (Viton)

Flame arrestor housings Flame arrestor elements

SG iron Stainless steel

Technical data

A708-01-880 Issue E

Figure 4 - IDX1000 Dimensions: mm (inch)

* Maximum

+ 57 hidden pages

Edwards CDX1000, IDX1300, IDX1000 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual