Blagdon Pump B75 User Manual

SERVICE & OPERATING MANUAL

®

Model X75 Metallic Design Level 1Model X75 Metallic Design Level 1

Model X75 Metallic Design Level 1

Model X75 Metallic Design Level 1Model X75 Metallic Design Level 1

Table of Contents

Engineering Data and Temperature Limitations .................................................. 1

Typical Code ......................................................................................................... 2

Performance Curve...............................................................................................3

Dimensions (Side Porting) ...................................................................................4

Dimensions (Center Porting) ................................................................................ 5

Principle of Pump Operation ................................................................................6

Installation and Start-Up ....................................................................................... 6

Air Supply .............................................................................................................6

Air Valve Lubrication ............................................................................................. 6

Air Line Moisture .................................................................................................. 6

Air Inlet and Priming .............................................................................................6

Between Uses ......................................................................................................6

Installation Guide .................................................................................................. 7

Troubleshooting....................................................................................................8

Warranty ............................................................................................................... 8

Recycling ..............................................................................................................9

Important Safety Information ................................................................................ 9

I M2 c/b T5

U.S. Patent #
5,996,627; 6,241,487
Other U.S. Patents
Applied for

See pages 2 & 23
for ATEX markings.

II 2GD b T5

CE

Material Codes ...................................................................................................10

Material Codes ................................................................................................... 10

Composite Repair Parts Drawing .......................................................................12

Composite Repair Parts Drawing ......................................................................12

Available Service and Conversion Kits ...............................................................12

Available Service and Conversion Kits .............................................................. 12

Composite Repair Parts List ...............................................................................13

Composite Repair Parts List .............................................................................. 13

Air Valve Assembly Drawing, Servicing & Parts List ...........................................14

Air Valve Assembly Drawing, Servicing & Parts List ..........................................14

Diaphragm Service Drawing, with Overlay .........................................................15

Diaphragm Service Drawing, with Overlay ........................................................15

Diaphragm Service Drawing, Non-Overlay.........................................................15

Diaphragm Service Drawing, Non-Overlay .......................................................15

Diaphragm Servicing ..........................................................................................16

Diaphragm Servicing ..........................................................................................16

Overlay Diaphragm Servicing .............................................................................16

Overlay Diaphragm Servicing ............................................................................ 16

Pilot Valve Servicing, Assembly Drawing & Parts List ........................................17

Pilot Valve Servicing, Assembly Drawing & Parts List ....................................... 17

Actuator Plunger Servicing .................................................................................18

Actuator Plunger Servicing ................................................................................. 18

Check Valve Servicing ........................................................................................19

Check Valve Servicing ........................................................................................19

Check Valve Drawing .........................................................................................19

Check Valve Drawing .........................................................................................19

Pumping Hazardous Liquids ..............................................................................20

Pumping Hazardous Liquids ..............................................................................20

Converting Pump for Piping Exhaust Air ............................................................20

Converting Pump for Piping Exhaust Air ............................................................20

Converted Exhaust Illustration ........................................................................... 20

Converted Exhaust Illustration ...........................................................................20

Grounding the Pump ..........................................................................................21

Grounding the Pump ..........................................................................................21

EC Declaration of Conformity - Machinery .........................................................22

EC Declaration of Conformity - ATEX 95a ..........................................................23

x75mdl1sm-rev0812

Blagdon Pump • A Unit of IDEX Corporation • R79 Shannon Industrial Estate • Co Clare, Ireland • Tel: [phone] • Fax: [phone]

www.blagdonpump.com • E-Mail: [e-mail]

x75mdl1sm-rev0812

Blagdon Pump • A Unit of IDEX Corporation • R79 Shannon Industrial Estate • Co Clare, Ireland • Tel: [phone] • Fax: [phone]

www.blagdonpump.com • E-Mail: [e-mail]

X75X75

X75

X75X75

Design Level 1Design Level 1

Design Level 1

Design Level 1Design Level 1

MetallicMetallic

Metallic

MetallicMetallic

Ball VBall V

Ball V

Ball VBall V

alvealve

alve

alvealve

Air-Powered
Double-Diaphragm Pump

ENGINEERING, PERFORMANCE
& CONSTRUCTION DATA

INTAKE/DISCHARGE PIPE SIZE

3” BSPT (tapered),

3" BSPT (tapered) or

3” BSP Parallel (internal),

3" BSP Parallel (internal)

or 3” NPT

CAUTION!

Operating temperature limitations are as follows:

CAPACITY

0 to 196 UK gallons per minute

(0 to 889 liters per minute)

AIR VALVE

No-lube, no-stall

design

SOLIDS-HANDLING

Up to .25 in. (6mm)

HEADS UP TO

125 psi or 289 ft. of water
(8.6 Kg/cm2 or 86 meters)

DISPLACEMENT/STROKE

.78 UK Gallons / 3.56 liters

Operating Temperatures

Materials Maximum Minimum

Buna N purpose, oil-resistant. Shows good solvent, oil, water and hydraulic fluid resistance.

Nitrile

Should not be used with highly polar solvents like acetone and MEK, ozone, chlorinated 190°F -10°F
hydrocarbons and nitro hyrdrocarbons. 88°C -23°C

EPDM Shows very good water and chemical resistance. Has poor resistance to oil and solvents, 280°F -40°F
but is fair in ketones and alcohols. 138°C -40°C

Neoprene All purpose. Resistant to vegetable oil. Generally not affected by moderate chemicals,
fats, greases and many oils and solvents. Generally attacked by strong oxidizing acids, ketones, 200°F -10°F
esters, nitro hydrocarbons and chlorinated aromatic hydrocarbons. 93°C -23°C

Santoprene® Injection molded thermoplastic elastomer with no fabric layer. Long mechanical flex 275°F -40°F

life. Excellent abrasion resistance. 135°C -40°C

Virgin PTFE Chemically inert, virtually impervious. Very few chemicals are known to react chemically with
PTFE: molten alkali metals, turbulent liquid or gaseous fluorine and a few fluoro-chemicals such as 220°F -35°F
chlorine trifluoride or oxygen difluoride which readily liberate free fluorine at elevated temperatures. 104°C -37°C

FKM

Viton® Shows good resistance to a wide range of oils and solvents; especially all aliphatic, aromatic

and halogenated hydrocarbons, acids, animal and vegetable oils. Hot water or hot aqueous solutions 350°F -40°F
(over 70°F) will attack Viton. 177°C -40°C

Conductive HDPE

Polypropylene 180°F 32°F

82°C 0°C

x75mdl1sm-rev0812

Blagdon Pump • A Unit of IDEX Corporation • R79 Shannon Industrial Estate • Co Clare, Ireland • Tel: [phone] • Fax: [phone]

www.blagdonpump.com • E-Mail: [e-mail]

Page 1

TYPICAL CODE=

II 2GD T5

X75.

01.

A

A. B B.

B B B

- C

C: Center Ported*
N: NPT Threads

Model - X75

Design Level

Wetted Components
A: Aluminum
C: Cast Iron
S: Stainless Steel

Non-Wetted Components
A: Aluminum
C: Cast Iron
S: Stainless Steel

Check Valve Type
B: Solid Ball
W: Weighted Ball

Valve Seats
A: Aluminum
C: Carbon Steel
S: Stainless Steel
N: Neoprene

Nitrile

B: Buna N
E: EPDM

®

FKM

V: Viton
T: PTFE

Check Valves
T: PTFE
B: Buna N

Nitrile

N: Neoprene
E: EPDM

R

S: Santoprene

Diaphragms
T: PTFE

Nitrile

B: Buna N
R: Santoprene

®

FKM

V: Viton

®

E: EPDM

II 1G c T5
II 3/1 G c T5
II 1D c T100°C
I M1 c
I M2 c

II 2G c T5
II 3/2 G c T5
II 2D c T100°C

x75mdl1sm-rev0812

Suction Orientation
B: Bottom

Models equipped with Wetted Options
C or S , Non-Wetted Options C or S.
Note: See page 23 EC-Type Certicate.

Models equipped with Wetted Options A, C
or S, Non-Wetted Options A, C or S.
Note: See page 23 Type Examination
Certicate.

Maximum delivery: 567 ltrs/min
Max. working pressure: 8.6 bar
Max. solid particle size: 6mm
Air inlet: 3/4" BSP (Parallel, Internal)
Temperature limits: Determined by elastomers
Fluid inlet/outlet: 3" BSP (Parallel, Internal)

3” BSP Tapered Center-Port Stainless Steel ONLY
3” NPT Center-Port Stainless Steel ONLY

*Available with Stainless Steel equipped models ONLY.

Installation: Surface mounted
Accessories included: Exhaust air silencer
Shipping weights with
Aluminum mid sections: A: 52kg

C: 98kg
S: 87kg

Shipping dimensions: 560x430x690mm

Blagdon Pump • A Unit of IDEX Corporation • R79 Shannon Industrial Estate • Co Clare, Ireland • Tel: [phone] • Fax: [phone]

www.blagdonpump.com • E-Mail: [e-mail]

Page 2

Performance Curve

20(34)

PSI

7

BAR

100

40(68)

100 PSI (6.8 Bar)

60(102)

80(136)

6

5

4

Head

3

2

1

0

100(170)

80

80 PSI (5.44 Bar)

60

60 PSI (4.08 Bar)

40

40 PSI (2.72 Bar)

20

20 PSI (1.36 Bar) Air Inlet Pressure

0

0 20 40 60 80

Displacement Per Stroke: .94 gallons

120(204)

140(238)

100 120 140 160 180 200

U.S. Gallons per minute

3.56 liters

Flow Capacity: 0 to 235 gallons per minute

0 to 889 liters per minute

METERS

FEET

9.1

30

7.6

25

6

20

4.5

15

3

10

1.5

5

220

240

NPSHR

x75mdl1sm-rev0812

5004003002001000

600

700

900800

Liters per minute

Capacity

Blagdon Pump • A Unit of IDEX Corporation • R79 Shannon Industrial Estate • Co Clare, Ireland • Tel: [phone] • Fax: [phone]

www.blagdonpump.com • E-Mail: [e-mail]

Page 3

Dimensions (Side Porting):

Dimensions in Millimeters
Dimensional Tolerance:± 3mm

DISCHARGE PORT

3" BSP (PARALLEL)

INTERNAL THREADS

410mm

200mm

SUCTION PORT

3" BSP

(PARALLEL)

INTERNAL THREADS

AIR IN SUBMERGED APPLICATIONS.

815mm

435mm

327mm

577mm

1" NPT EXHAUST PORT

FOR PIPING EXHAUST

R8mm
4 Places

129mm

257mm

367mm

184mm

62mm

305mm

10mm

60mm

149mm

152mm

AIR INLET
3/4" BSP (PARALLEL)
INTERNAL THREADS

761mm

298mm

114mm

x75mdl1sm-rev0812

Blagdon Pump • A Unit of IDEX Corporation • R79 Shannon Industrial Estate • Co Clare, Ireland • Tel: [phone] • Fax: [phone]

www.blagdonpump.com • E-Mail: [e-mail]

Page 4

Dimensions (Center Porting):

*Available with Stainless Steel equipped models ONLY.

Dimensions in Millimeters
Dimensional Tolerance:± 3mm

815mm

96mm

410mm

200mm

Discharge Port
3" BSPT (Tapered)

x75mdl1sm-rev0812

435mm

184mm

367mm
499mm

Standard Encapsulated Muffler

1" NPT Exhaust Port Piping

Exhaust Air In Submerged

Applications

62mm

257mm

129mm

Suction Port

3" BSPT (Tapered)

60mm

149mm

298mm

305mm

152mm

124mm

Air inlet
3/4" NPT

761mm

89mm

Both Suction And

Both Suction And

Discharge Ports Are

Discharge Ports Are

Available With

Available With

3” NPT Connection

3" BSP Tapered Connection

Blagdon Pump • A Unit of IDEX Corporation • R79 Shannon Industrial Estate • Co Clare, Ireland • Tel: [phone] • Fax: [phone]

www.blagdonpump.com • E-Mail: [e-mail]

Page 5

PRINCIPLE OF PUMP OPERATION

This ball type check valve pump is
powered by compressed air and is a 1:1
ratio design. The inner side of one
diaphragm chamber is alternately
pressurized while simultaneously
exhausting the other inner chamber. This
causes the diaphragms, which are
connected by a common rod secured
by plates to the centers of the
diaphragms, to move in a reciprocating
action. (As one diaphragm performs the
discharge stroke the other diaphragm
is pulled to perform the suction stroke
in the opposite chamber.) Air pressure
is applied over the entire inner surface
of the diaphragm while liquid is
discharged from the opposite side of the
diaphragm. The diaphragm operates in
a balanced condition during the
discharge stroke which allows the pump
to be operated at discharge heads over
200 feet (61 meters) of water.

For maximum diaphragm life, keep
the pump as close to the liquid being
pumped as possible. Positive suction
head in excess of 10 feet of liquid (3.048
meters) may require a back pressure
regulating device to maximize
diaphragm life.

Alternate pressurizing and
exhausting of the diaphragm chamber
is performed by an externally mounted,
pilot operated, four way spool type air
distribution valve. When the spool shifts
to one end of the valve body, inlet
pressure is applied to one diaphragm
chamber and the other diaphragm
chamber exhausts. When the spool

shifts to the opposite end of the valve
body, the pressure to the chambers is
reversed. The air distribution valve spool
is moved by a internal pilot valve which
alternately pressurizes one end of the
air distribution valve spool while
exhausting the other end. The pilot valve
is shifted at each end of the diaphragm
stroke when a actuator plunger is
contacted by the diaphragm plate. This
actuator plunger then pushes the end of
the pilot valve spool into position to
activate the air distribution valve.

The chambers are connected with
manifolds with a suction and discharge
check valve for each chamber,
maintaining flow in one direction through
the pump.

INSTALLATION AND START-UP

Locate the pump as close to the
product being pumped as possible. Keep
the suction line length and number of
fittings to a minimum. Do not reduce the
suction line diameter.

For installations of rigid piping, short
sections of flexible hose should be
installed between the pump and the
piping. The flexible hose reduces
vibration and strain to the pumping
system. A surge suppressor is
recommended to further reduce
pulsation in flow.

AIR SUPPLY

Air supply pressure cannot exceed
125 psi (8.6 bar). Connect the pump air
inlet to an air supply of sufficient
capacity and pressure required for
desired performance. When the air

supply line is solid piping, use a short
length of flexible hose not less than
1/2" (13mm) in diameter between the
pump and the piping to reduce strain to
the piping. The weight of the air supply
line, regulators and filters must be
supported by some means other than
the air inlet cap. Failure to provide
support for the piping may result in
damage to the pump. A pressure
regulating valve should be installed to
insure air supply pressure does not
exceed recommended limits.

AIR VALVE LUBRICATION

The air distribution valve and the pilot
valve are designed to operate WITHOUT
lubrication. This is the preferred mode
of operation. There may be instances of
personal preference or poor quality air
supplies when lubrication of the
compressed air supply is required. The
pump air system will operate with
properly lubricated compressed air
supply. Proper lubrication requires the
use of an air line lubricator set to deliver
one drop of SAE 10 non-detergent oil
for every 20 SCFM (9.4 liters/sec.) of
air the pump consumes at the point of
operation. Consult the pump’s published
Performance Curve to determine this.

AIR LINE MOISTURE

Water in the compressed air supply
can create problems such as icing or
freezing of the exhaust air, causing the
pump to cycle erratically or stop
operating. Water in the air supply can be
reduced by using a point-of-use air dryer
to supplement the user’s air drying

equipment. This device removes water
from the compressed air supply and
alleviates the icing or freezing problems.

AIR INLET AND PRIMING

To start the pump, open the air valve
approximately 1/2" to 3/4" turn. After the
pump primes, the air valve can be
opened to increase air flow as desired.
If opening the valve increases cycling
rate, but does not increase the rate of
flow, cavitation has occurred. The valve
should be closed slightly to obtain the
most efficient air flow to pump flow ratio.

BETWEEN USES

When the pump is used for materials
that tend to settle out or solidify when
not in motion, the pump should be flushed
after each use to prevent damage.
(Product remaining in the pump between
uses could dry out or settle out. This could
cause problems with the diaphragms and
check valves at restart.) In freezing
temperatures the pump must be
completely drained between uses in all
cases.

x75mdl1sm-rev0812

Blagdon Pump • A Unit of IDEX Corporation • R79 Shannon Industrial Estate • Co Clare, Ireland • Tel: [phone] • Fax: [phone]

www.blagdonpump.com • E-Mail: [e-mail]

Page 6