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]

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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]

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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]

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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

INSTALLATION GUIDE

Top Discharge Ball Unit

Available from
Blagdon Pump

1

PD75M Pulsation Dampener

020-052-000 Filter/Regulator

2

3

020-052-001 Lubricator

4

020-048-008 Air Dryer

CAUTION

The air exhaust should be
piped to an area for safe
disposition of the product
being pumped, in the event
of a diaphragm failure.

1

Pulsation
Dampener
Limited to
125 psi

x75mdl1sm-rev0812

4

3

2

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 7

TROUBLESHOOTING
Possible Symptoms:

• Pump will not cycle.

• Pump cycles, but produces no flow.

• Pump cycles, but flow rate is

unsatisfactory.

• Pump cycle seems unbalanced.

• Pump cycle seems to produce

excessive vibration.

What to Check: Excessive suction lift
in system.
Corrective Action: For lifts exceeding
20 feet (6 meters), filling the pumping
chambers with liquid will prime the pump
in most cases.

What to Check: Excessive flooded
suction in system.
Corrective Action: For flooded
conditions exceeding 10 feet (3 meters)
of liquid, install a back pressure device.

What to Check: System head exceeds
air supply pressure.
Corrective Action: Increase the inlet air
pressure to the pump. Most diaphragm
pumps are designed for 1:1 pressure
ratio at zero flow.

What to Check: Air supply pressure or
volume exceeds system head.
Corrective Action: Decrease inlet air
pressure and volume to the pump as
calculated on the published
PERFORMANCE CURVE. Pump is
cavitating the fluid by fast cycling.

What to Check: Undersized suction line.
Corrective Action: Meet or exceed

pump connection recommendations
shown on the DIMENSIONAL
DRAWING.

What to Check: Restricted or undersized
air line.
Corrective Action: Install a larger air line
and connection. Refer to air inlet
recommendations shown in your pump’s
SERVICE MANUAL.

What to Check: Check ESADS, the
Externally Serviceable Air Distribution
System of the pump.
Corrective Action: Disassemble and
inspect the main air distribution valve,
pilot valve and pilot valve actuators.
Refer to the parts drawing and air valve
section of the SERVICE MANUAL.
Check for clogged discharge or closed
valve before reassembly.

What to Check: Rigid pipe connections
to pump.
Corrective Action: Install flexible
connectors and a surge suppressor.

What to Check: Blocked air exhaust
muffler.
Corrective Action: Remove muffler
screen, clean or de-ice and reinstall.
Refer to the Air Exhaust section of your
pump SERVICE MANUAL.

What to Check: Pumped fluid in air
exhaust muffler.

Corrective Action: Disassemble pump
chambers. Inspect for diaphragm rupture
or loose diaphragm plate assembly. Refer
to the Diaphragm Replacement section
of your pump SERVICE MANUAL.

What to Check: Suction side air leakage
or air in product.
Corrective Action: Visually inspect all
suction side gaskets and pipe
connections.

What to Check: Obstructed check
valve.
Corrective Action: Disassemble the wet
end of the pump and manually dislodge
obstruction in the check valve pocket.
Refer to the Check Valve section of the
pump SERVICE MANUAL for
disassembly instructions.

What to Check: Worn or misaligned
check valve or check valve seat.
Corrective Action: Inspect check valves
and seats for wear and proper seating.
Replace if necessary. Refer to Check
Valve section of the pump SERVICE
MANUAL for disassembly instructions.

What to Check: Blocked suction line.
Corrective Action: Remove or flush

obstruction. Check and clear all suction
screens and strainers.

What to Check: Blocked discharge line.
Corrective Action: Check for obstruction

or closed discharge line valves.

What to Check: Blocked pumping
chamber.
Corrective Action: Disassemble and
inspect the wetted chambers of the
pump. Remove or flush any obstructions.
Refer to the pump SERVICE MANUAL
for disassembly instructions.

What to Check: Entrained air or vapor
lock in one or both pumping chambers.
Corrective Action: Purge chambers
through tapped chamber vent plugs.
PURGING THE CHAMBERS OF AIR
CAN BE DANGEROUS! Contact the
Technical Services Group before
performing this procedure. Any model
with top-ported discharge will reduce or
eliminate problems with entrained air.

If your pump continues to perform
below your expectations, contact your
local Distributor or factory Technical
Services Group for a service evaluation.

WARRANTY

Refer to the enclosed Warranty
Certificate.

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 8

RECYCLING

Many components of Metallic AODD
pumps are made of recyclable materials
(see chart on page 10 for material
specifications). We encourage pump
users to recycle worn out parts and
pumps whenever possible, after any
hazardous pumped fluids are thoroughly
flushed.

I M2 c/b T5
II 2GD b T5

CE

Pump complies with EN809 Pumping
Directive and Directive 98/37/EC Safety of
Machinery, and ATEX 100a Directive
94/9/EC Equipment for use in Potentially
Explosive Environments.

IMPORTANT SAFETY

INFORMATION

IMPORTANT

Read these safety warnings
and instructions in this
manual completely, before
installation and start-up

of the pump. It is the
responsibility of the purchaser to retain this
manual for reference. Failure to comply with
the recommendations stated in this manual will
damage the pump, and void factory warranty.

CAUTION

Before pump operation,
inspect all gasketed
fasteners for looseness
caused by gasket creep.

Re-torque loose fasteners
to prevent leakage. Follow recommended
torques stated in this manual.

WARNING

Before maintenance or

repair, shut off the com-

pressed air line, bleed the

pressure, and disconnect

the air line from the pump.
The discharge line may be pressurized and
must be bled of its pressure.

WARNING

In the event of diaphragm

rupture, pumped material

may enter the air end of the

pump, and be discharged

into the atmosphere. If

pumping a product which is hazardous or toxic,
the air exhaust must be piped to an appropriate
area for safe disposition.

WARNING

Take action to prevent static
sparking. Fire or explosion
can result, especially when
handling flammable liquids.

containers or other miscellaneous equipment must
be grounded. (See page 28)

The pump, piping, valves,

(See page 21)

WARNING

This pump is pressurized
internally with air pressure
during operation. Always
make certain that all bolting

all of the correct bolting is reinstalled during
assembly.

is in good condition and that

WARNING

When used for toxic or
aggressive fluids, the pump
should always be flushed
clean prior to disassembly.

WARNING

Before doing any main­tenance on the pump, be
certain all pressure is
completely vented from the

piping, and all other openings and connections.
Be certain the air supply is locked out or made
non-operational, so that it cannot be started while
work is being done on the pump. Be certain that
approved eye protection and protective clothing
are worn all times in the vicinity of the pump.
Failure to follow these recommendations may
result in serious injury or death.

pump, suction, discharge,

WARNING

Airborne particles and loud
noise hazards.

Wear ear and eye protection.

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 9

MATERIAL CODES

The Last 3 Digits of Part Number

000 .....Assembly, sub-assembly;

and some purchased items

010 ..... Cast Iron

012 .....Powered Metal

015 .....Ductile Iron

020 .....Ferritic Malleable Iron

025 .....Music Wire

080 .....Carbon Steel, AISI B-1112

100 .....Alloy 20

110 .....Alloy Type 316 Stainless Steel

111 .....Alloy Type 316 Stainless Steel

(Electro Polished)

112 .....Alloy “C” (Hastelloy equivalent)

113 .....Alloy Type 316 Stainless Steel

(Hand Polished)

114 .....303 Stainless Steel

115 .....302/304 Stainless Steel

117 .....440-C Stainless Steel (Martensitic)

120 .....416 Stainless Steel

(Wrought Martensitic)

123 .....410 Stainless Steel

(Wrought Martensitic)

148 .....Hardcoat Anodized Aluminum

149 .....2024-T4 Aluminum

150 .....6061-T6 Aluminum

151 .....6063-T6 Aluminum

152 .....2024-T4 Aluminum (2023-T351)

154 .....Almag 35 Aluminum

155 .....356-T6 Aluminum

156 .....356-T6 Aluminum

157 .....Die Cast Aluminum Alloy #380

158 .....Aluminum Alloy SR-319

159 .....Anodized Aluminum

162 .....Brass, Yellow, Screw Machine Stock

165 .....Cast Bronze, 85-5-5-5

166 .....Bronze, SAE 660

170 .....Bronze, Bearing Type,

Oil Impregnated

175 ..... Die Cast Zinc

180 ..... Copper Alloy

305 ..... Carbon Steel, Black Epoxy Coated

306 ..... Carbon Steel, Black PTFE Coated

307 ..... Aluminum, Black Epoxy Coated

308 ..... Stainless Steel, Black PTFE Coated

309 ..... Aluminum, Black PTFE Coated

310 ..... Kynar® Coated

330 ..... Zinc Plated Steel

331 ..... Chrome Plated Steel

332 ..... Aluminum, Electroless Nickel Plated

333 ..... Carbon Steel, Electroless

Nickel Plated

335 ..... Galvanized Steel

336 ..... Zinc Plated Yellow Brass

337 ..... Silver Plated Steel

340 ..... Nickel Plated

342 ..... Filled Nylon

353 ..... Geolast; Color: Black

354 ..... Injection Molded #203-40 Santoprene-

Duro 40D +/-5; Color: RED

355 ..... Thermal Plastic

356 ..... Hytrel

357 ..... Injection Molded Polyurethane

358 ..... Urethane Rubber

(Some Applications) (Compression Mold)

359 ..... Urethane Rubber

360 ..... Nitrile Rubber. Color coded: RED

361 ..... Nitrile

363 ..... FKM (Flurorel). Color coded: YELLOW

364 ..... E.P.D.M. Rubber. Color coded: BLUE

365 ..... Neoprene Rubber.

Color coded: GREEN

366 ..... Food Grade Nitrile

368 ..... Food Grade EPDM

370 ..... Butyl Rubber. Color coded: BROWN

371 ..... Philthane (Tuftane)

374 .....Carboxylated Nitrile

375 .....Fluorinated Nitrile

378 .....High Density Polypropylene

379 .....Conductive Nitrile

405 .....Cellulose Fibre

408 .....Cork and Neoprene

425 .....Compressed Fibre

426 .....Blue Gard

440 .....Vegetable Fibre

465 .....Fibre

500 .....Delrin 500

501 .....Delrin 570

502 .....Conductive Acetal, ESD-800

503 .....Conductive Acetal, Glass-Filled

505 .....Acrylic Resin Plastic

506 .....Delrin 150

520 .....Injection Molded PVDF Natural color

540 .....Nylon

541 .....Nylon

542 .....Nylon

544 .....Nylon Injection Molded

550 .....Polyethylene

551 .....Glass Filled Polypropylene

552 .....Unlled Polypropylene

553 .....Unlled Polypropylene

555 .....Polyvinyl Chloride

556 .....Black Vinyl

558 .....Conductive HDPE

570 .....Rulon II

580 .....Ryton

590 .....Valox

591 .....Nylatron G-S

592 .....Nylatron NSB

600 .....PTFE (virgin material)

Tetrauorocarbon (TFE)

601 .....PTFE (Bronze and moly lled)

602 .....Filled PTFE

603 .....Blue Gylon

604 .....PTFE

606 .....PTFE

607 .....Envelon

608 .....Conductive PTFE

610 .....PTFE Encapsulated Silicon

611 .....PTFE Encapsulated FKM

632 .....Neoprene/Hytrel

633 .....FKM/PTFE

634 .....EPDM/PTFE

635 .....Neoprene/PTFE

637 .....PTFE , FKM/PTFE

638 .....PTFE , Hytrel/PTFE

639 .....Nitrile/TFE

643 .....Santoprene®/EPDM

644 .....Santoprene®/PTFE

656 .....Santoprene Diaphragm and

Check Balls/EPDM Seats

Delrin, FKM and Hytrel are
registered tradenames of E.I. DuPont.
Gylon is a registered tradename of Garlock, Inc.
Nylatron is a registered tradename of
Polymer Corp.
Santoprene is a registered tradename of
Exxon Mobil Corp.
Rulon II is a registered tradename of
Dixion Industries Corp.
Ryton is a registered tradename of
Phillips Chemical Co.
Valox is a registered tradename of
General Electric Co.

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 10

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 11

Composite Repair Parts Drawing

AVAILABLE SERVICE AND CONVERSION KITS

B476-227-000 AIR END KIT (Aluminum)

B476-185-360 WET END KIT

B476-185-656 WET END KIT

B476-185-364 WET END KIT

B476-185-365 WET END KIT

B476-185-633 WET END KIT

B476-185-635

476-185-635 WET END KIT

HARDWARE KITS

B476-197-330

475-197-330 Zinc Plated Capscrews, Washers, and Hex Nuts

Seals, O-ring, Gaskets, Retaining Rings, Air Valve
Sleeve and Spool Set, and Pilot Valve Assembly

Nitrile

Buna Diaphragms, Balls, and Seats.

Santoprene Diaphragms, Balls and EPDM Seats.

EPDM Diaphragms, Balls and Seats.

Neoprene Diaphragms, Balls, and Seats.

FKM

Viton Diaphragms, PTFE Balls and PTFE Seats.

Neoprene Diaphragms, PTFE Overlay,
PTFE Balls and PTFE Seats.

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 12

ITEM PART NUMBER DESCRIPTION QTY

1 B031-183-000 Air Valve Assembly 1
B031-179-000 Air Valve Assembly (Cast Iron & Stainless Steel Centers Only) 1
2 B050-014-354 Ball, Check 4
B050-014-360 Ball, Check 4
B050-014-364 Ball, Check 4
B050-014-365 Ball, Check 4
B050-015-600 Ball, Check 4
3 B070-006-170 Bushing 2
4 B095-110-000 Pilot Valve Assembly 1
B095-110-110 Pilot Valve Assembly (Stainless Steel Centers Only) 1
B095-110-558 Pilot Valve Assembly (Cast Iron Centers Only) 1
5 B114-024-157 Intermediate Bracket 1
B114-024-010 Intermediate Bracket 1
B114-024-110 Intermediate Bracket 1
6 B132-035-360 Bumper, Diaphragm 2
7 B135-034-506 Bushing, Plunger 2
8 B165-113-157 Cap, Air Inlet Assembly 1
B165-113-010 Cap, Air Inlet Assembly 1
B165-113-110 Cap, Air Inlet Assembly 1
9 B170-055-115 Capscrew, Hex Hd 1/2-13 X 2.50 16
B170-055-330 Capscrew, Hex Hd 1/2-13 X 2.50 16
10 B170-060-115 Capscrew, Hex Hd 7/16-14 X 2.00 16
B170-060-330 Capscrew, Hex Hd 7/16-14 X 2.00 16
11 B170-069-115 Capscrew, Hex Hd 5/16-18 X 1.75 4
B170-069-330 Capscrew, Hex Hd 5/16-18 X 1.75 4
12 B170-006-115 Capscrew, Hex HD 3/8-16 X 1.00 4
B170-006-330 Capscrew, Hex HD 3/8-16 X 1.00 4
13 B171-059-115 Capscrew, Soc Hd 7/16-14 X 1.25 8
B171-059-330 Capscrew, Soc Hd 7/16-14 X 1.25 8
B171-011-110 Capscrew, Soc Hd 1/2-13X 1.25 (SS Centers Only) 8
14 B196-164-156 Chamber, Outer 2
B196-164-010 Chamber, Outer 2
B196-164-110 Chamber, Outer 2
B196-164-112 Chamber, Outer 2
15 B196-165-156 Chamber, Inner 2
B196-165-010 Chamber, Inner 2
B196-165-110 Chamber, Inner 2
16 B286-098-604 Diaphragm, Overlay 2
17 B286-098-360 Diaphragm 2
B286-098-363 Diaphragm 2
B286-098-354 Diaphragm 2
B286-098-365 Diaphragm 2
18 B360-093-360 Gasket, Air Valve 1
19 B360-103-360 Gasket, Pilot Valve 1

ITEM PART NUMBER DESCRIPTION QTY

20 B360-104-379 Gasket, Air Inlet 1
21 B360-105-360 Gasket, Inner Chamber 2
22 B518-155-156E Manifold, Suction 3” BSP Parallel 1
B518-155-010E Manifold, Suction 3” BSP Parallel 1
B518-143-110 Manifold, Suction 3” NPT (Center Ported Only)* 1
B518-143-110E Manifold, Suction 3” BSPT (Center Ported Only) * 1
23 B518-156-156E Manifold, Discharge 3” BSP Parallel 1
B518-156-010E Manifold, Discharge 3” BSP Parallel 1
B518-144-110 Manifold, Discharge 3” NPT (Center Ported Only)* 1
B518-144-110E Manifold, Discharge 3” BSPT 1
(Center Ported Only)*
24 B545-007-115 Nut, Hex 7/16-14 16
B545-007-330 Nut, Hex 7/16-14 16
25 B545-008-115 Nut, Hex 1/2-13 16
B545-008-330 Nut, Hex 1/2-13 16
26 B560-001-360 O-Ring 2
27 B560-105-360 Seal (O-Ring) (See item 34) 8
B560-105-363 Seal (O-Ring) (See item 34) 8
B560-105-364 Seal (O-Ring) (See item 34) 8
B560-105-365 Seal (O-Ring) (See item 34) 8
B720-055-608 Seal (O-Ring) (See item 34) 8
28 B612-192-157 Plate, Inner Diaphragm Assembly 2
B612-192-010 Plate, Inner Diaphragm Assembly 2
B612-192-334 Plate, Inner Diaphragm Assembly 2
29 B612-194-157 Plate, Outer Diaphragm Assembly 2
B612-194-010 Plate, Outer Diaphragm Assembly 2
B612-194-110 Plate, Outer Diaphragm Assembly 2
B612-194-112 Plate, Outer Diaphragm Assembly 2
30 B620-020-115 Plunger, Actuator 2
31 B675-042-115 Ring, Retaining 2
32 B685-040-120 Rod, Diaphragm 1
33 B720-004-360 Seal, Diaphragm Rod 2
34 B722-090-360 Seat, Check Ball 4
B722-090-363 Seat, Check Ball 4
B722-090-364 Seat, Check Ball 4
B722-090-365 Seat, Check Ball 4
B722-090-600 Seat, Check Ball 4
B722-090-080 Seat, Check Ball (seals required see item 27) 4
B722-090-110 Seat, Check Ball (seals required see item 27) 4

B722-090-150 Seat, Check Ball (seals required see item 27) 4
35 B901-038-115 5/16 Flat Washer 4
B901-038-330 5/16 Flat Washer 4
36 B901-048-115 3/8 Flat Washer (Stroke Indicator Only) 4
B901-048-330 3/8 Flat Washer (Stroke Indicator Only) 4

42 B530-033-000 Metal Mufer (ATEX compliant) 1

x75mdl1sm-rev0812

*Available with Stainless Steel equipped models ONLY.

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 13

Air Valve Servicing, Assembly Drawing & Parts List

I M2 c/b T5

1-D

1-B

1-D

1-C

1-E

1-F

Air Valve Assembly Parts List (Use w/Aluminum centers only)
Item Part Number Description Qty
1 031-183-000 Air Valve Assembly 1

1-A 095-109-157 Body, Air Valve 1
1-B 031-139-000 Sleeve and Spool Set 1
1-C 132-029-357 Bumper 2
1-D 560-020-360 O-Ring 10
1-E 165-127-157 Cap, End 2
1-F 170-032-330 Hex Head Capscrew 1/4-20 x .75 8

II 2GD b T5

1-E

1-A

1-C

1-D

1-F

Air Distribution Valve Servicing

To service the air valve first shut off the
compressed air, bleed pressure from the
pump, and disconnect the air supply line
from the pump.

Step #1: See COMPOSITE REPAIR PARTS
DRAWING.

Using a 9/16" wrench or socket, remove
the four hex capscrews (items 12). Remove
the air valve assembly from the pump.

Remove and inspect gasket (item 18)
for cracks or damage. Replace gasket if
needed.

Step #2: Disassembly of the air valve.

Using a 7/16" wrench or socket, remove
the eight hex capscrews (items 1-F) that

1-B

fasten the end caps to the valve body. Next
remove the two end caps (items 1-E).
Inspect the two o-rings (items 1-D) on each
end cap for damage or wear. Replace the
bumpers as needed.

Remove the bumpers (items 1-C).
Inspect the bumpers for damage or wear.
Replace the bumpers as needed.

Remove the spool (part of item 1-B) from
the sleeve. Be careful not to scratch or
damage the outer diameter of the spool.
Wipe spool with a soft cloth and inspect for
scratches or wear.

Inspect the inner diameter of the sleeve
(part of item 1-B) for dirt, scratches, or other
contaminants. Remove the sleeve if needed
and replace with a new sleeve and spool
set (item 1-B).

Air Valve Assembly Parts List (Use w/Cast Iron centers only)
Item Part Number Description Qty
1 031-179-000 Air Valve Assembly 1

1-A 095-109-110 Body, Air Valve 1
1-B 031-139-000 Sleeve and Spool Set 1
1-C 132-029-357 Bumper 2
1-D 560-020-379 O-Ring 10
1-E 165-127-110 Cap, End 2
1-F 170-032-115 Hex Head Capscrew 1/4-20 x .75 8

Step #3: Reassembly of the air valve.

Install one bumper (item 1-C) and one
end cap (item 1-E), with two o-rings (items
1-D), and fasten with four hex capscrews
(items 1-F) to the valve body (item 1-A).

Remove the new sleeve an spool set

(with o-rings) and fasten with the remaining
hex capscrews.

Fasten the air valve assembly (item 1)
and gasket to the pump.Connect the
compressed air line to the pump. The pump
is now ready for operation.

(item 1-B) from the plastic bag. Carefully
remove the spool from the sleeve. Install
the six o-rings (item 1-D) into the six grooves
on the sleeve. Apply a light coating of
grease to the o-rings before installing the
sleeve into the valve body (item 1-A), align
the slots in the sleeve with the slots in the
valve body. Insert the spool into the sleeve.
Be careful not to scratch or damage the
spool during installation. Carefully insert the
sleeve into the bumper and end cap

this manual for reference. Failure to
comply with the recommendations stated
in this manual will damage the pump, and
void factory warranty.

IMPORTANT

Read these instructions
completely, before in­stallation and start-up. It
is the responsibility of
the purchaser to retain

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 14

Diaphragm Service Drawing,

Diaphragm Service Drawing,

with Overlay

32

25

Non-Overlay

15

13

6

28

17

32

15

13

6

28

17

25

16

9

29

14

29

24

24

x75mdl1sm-rev0812

24

9

14

24

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

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Page 15

DIAPHRAGM SERVICING

To service the diaphragms first shut
off the suction, then shut off the
discharge lines to the pump. Shut off the
compressed air supply, bleed the
pressure from the pump, and disconnect
the air supply line from the pump. Drain
any remaining liquid from the pump.

Step #1: See the pump assembly
drawing, and the diaphragm servicing
illustration.

Using a 9/16" wrench or socket,
remove the 16 capscrews (item 10), and
hex nuts that fasten the manifolds (items
22 & 23) to the outer chambers (item 14).

Step #2: Removing the outer
chambers.

Using a 11/16" and a 5/8" wrench or
socket, remove the 16 capscrews (items

9), and hex nuts that fasten the outer
chambers, diaphragms, and inner
chambers (items 15) together.

Step #3: Removing the diaphragm
assemblies.

Use a 11/16" (27mm) wrench or six
pointed socket to remove the diaphragm
assemblies (outer plate, diaphragm, and
inner plate) from the diaphragm rod
(item 32) by turning counterclockwise.

NOTE: To uninstall the diaphragm
plates from the diaphragm, hold the inner
diaphragm plate using one of two
methods:

Preferred Method: Place the
assembled plates and diaphragm in a
large vise, gripping on the exterior cast
diameter of the inner diaphragm plate
(see the drawing at far right).

Alternate Method: When a larger vise
is not available, insert a 1/4 - 20UNC
hex capscrew or setscrew (standard
hardware) into the tapped hole in the inner
diaphragm plate. Insert the assembled
plates and diaphragm into a vise with
the stud from the outer plate and the
1/4 - 20 fastener loosely between the
jaws of the vise (see illustration at right).

Use a 11/16" wrench or socket to
remove the outer diaphragm plate (item

29) by turning counterclockwise. Inspect
the diaphragm (item 17) for cuts,
punctures, abrasive wear or chemical
attack. Replace the diaphragms if
necessary.

Step #4: Installing the diaphragms.

Push the threaded stud of the outer
diaphragm plate through the center hole
of the diaphragm. Thread the inner plate
clockwise onto the stud. Use one of the
two methods for holding the inner
diaphragm plate that was described in
prior note in step #3. Use a torque wrench
to tighten the diaphragm assembly
together to 50 ft. lbs. (67.79 Newton
meters). Allow a minimum of 15 minutes
to elapse after torquing, then re-torque
the assembly to compensate for stress
relaxation in the clamped assembly.

Step #5: Installing the diaphragm
assemblies to the pump.

Make sure the bumper (item 6) is
installed over the diaphragm rod.

Thread the stud of the one diaphragm
assembly clockwise into the tapped hole
at the end of the diaphragm rod (item

32) until the inner diaphragm plate is flush
to the end of the rod. Insert rod into
pump.

Align the bolt holes in the diaphragm
with the bolt pattern in the inner chamber
(item 15).

Fasten the outer chamber (item 14)
to the pump, using the capscrews (items

9), and hex nuts.

On the opposite side of the pump,
pull the diaphragm rod out as far as
possible. Make sure the bumper (item

6) is installed over the diaphragm rod.

Thread the stud of the remaining
diaphragm assembly clockwise into the
tapped hole at the end of the diaphragm
rod (item 32) as far as possible and still
allow for alignment of the bolt holes in
the diaphragm with the bolt pattern in
the inner chamber (item 15).

Fasten the remaining outer chamber
(item 14) to the pump, using the
capscrews (items 9), and hex nuts.

Step #6: Re-install the manifolds to
the pump, using the capscrews (items

10), hex nuts and flat washers.

Alternate Method:

Install 1/4 - 20UNC fastener

into tapped hole.

IMPORTANT

Read these instructions
completely, before in­stallation and start-up. It
is the responsibility of

the purchaser to retain
this manual for reference. Failure to
comply with the recommendations stated
in this manual will damage the pump, and
void factory warranty.

The pump is now ready to be
re-installed, connected and returned to
operation.

OVERLAY DIAPHRAGM SERVICING

The overlay diaphragm (item 16)
is designed to fit over the exterior of the
standard TPE diaphragm (item 17).

The molded directional arrows on the
overlay diaphragm must point vertically.

Follow the same procedures
described for the standard diaphragm for
removal and installation.

Preferred Method:
Grip this exterior
cast diameter.

x75mdl1sm-rev0812

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

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Page 16

Pilot Valve Servicing, Assembly Drawing & Parts List

PILOT VALVE ASSEMBLY PARTS LIST

ITEM PART NUMBER DESCRIPTION QTY

4 095-110-000 Pilot Valve Assembly 1
4-A 095-095-157 Valve Body 1
4-B 755-051-000 Sleeve (With O-rings) 1
4-C 560-033-379 O-ring (Sleeve) 6
4-D 775-055-000 Spool (With O-rings) 1
4-E 560-023-379 O-ring (Spool) 3
4-F 675-037-080 Retaining Ring 1

FOR PUMPS WITH CAST IRON CENTER SECTION

ITEM PART NUMBER DESCRIPTION QTY

4 095-110-558 Pilot Valve Assembly 1
4-A 095-095-558 Valve Body 1
(includes all other items used on 095-110-000)

FOR PUMPS WITH STAINLESS STEEL CENTER SECTION

ITEM PART NUMBER DESCRIPTION QTY

4 095-110-110 Pilot Valve Assembly 1
4-A 095-095-110 Valve Body 1
(includes all other items used on 095-110-000)

PILOT VALVE SERVICING

To service the pilot valve first shut
off the compressed air supply, bleed the
pressure from the pump, and disconnect
the air supply line from the pump.

STEP #1: See pump assembly
drawing.

Using a 1/2" wrench or socket,
remove the four capscrews (item 11).
Remove the air inlet cap (item 8) and air
inlet gasket (item 21). The pilot valve
assembly (item 4) can now be removed
for inspection and service.

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

x75mdl1sm-rev0812

STEP #2: Disassembly of the pilot

valve.

Remove the pilot valve spool (item
4-D). Wipe clean and inspect spool and
o-rings for dirt, cuts or wear. Replace the
o-rings and spool if necessary.

Remove the retaining ring (item 4-F)
from the end of the sleeve (item 4-B)
and remove the sleeve from the valve
body (item 4-A). Wipe clean and inspect
sleeve and o-rings for dirt, cuts or wear.
Replace the o-rings and sleeve if
necessary.

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STEP #3: Re-assembly of the pilot

valve.

Generously lubricate outside
diameter of the sleeve and o-rings. Then
carefully insert sleeve into valve body.
Take CAUTION when inserting sleeve,
not to shear any o-rings. Install retaining
ring to sleeve. Generously lubricate
outside diameter of spool and o-rings.
Then carefully insert spool into sleeve.
Take CAUTION when inserting spool,
not to shear any o-rings. Use BP-LS­EP-2 multipurpose grease, or equivalent.

STEP #4: Re-install the pilot valve

assembly into the intermediate.

Be careful to align the ends of the
pilot valve stem between the plunger
pins when inserting the pilot valve into
the cavity of the intermediate.

Re-install the gasket, air inlet cap
and capscrews. Connect the air supply
to the pump. The pump is now ready for
operation.

Page 17

ACTUATOR PLUNGER SERVICING

To service the actuator plunger first
shut off the compressed air supply,
bleed the pressure from the pump, and
disconnect the air supply line from the
pump.

Step #1: See PUMP ASSEMBLY
DRAWING.

Using a 1/2" wrench or socket,
remove the four capscrews (items 11).
Remove the air inlet cap (item 8) and
air inlet gasket (item 20). The pilot valve
assembly (item 4) can now be removed.

Step #3: Re-install the pilot valve

assembly into the intermediate assembly.

Be careful to align the ends of the
stem between the plungers when
inserting the stem of the pilot valve into
the cavity of the intermediate.

Re-install the gasket (item 20), air
inlet cap (item 8) and capscrews (item

11).

Connect the air supply to the pump.
The pump is now ready for operation.

IMPORTANT

Read these instructions
completely, before in­stallation and start-up. It
is the responsibility of

the purchaser to retain
this manual for reference. Failure to
comply with the recommendations stated
in this manual will damage the pump, and
void factory warranty.

Step #2: Inspect the actuator

plungers.

See ILLUSTRATION AT RIGHT.

The actuator plungers (items 30) can
be reached through the pilot valve cavity
in the intermediate assembly (item 5).

Remove the plungers (item 30) from
the bushings (item 7) in each end of
the cavity. Inspect the installed o-ring
(items 26) for cuts and/or wear. Replace
the o-rings if necessary. Apply a light
coating of grease to each o-ring and
re-install the plungers in to the bushings.
Push the plungers in as far as they will
go.

To remove the bushings (item 7),
first remove the retaining rings (item 31)
by using a flat screwdriver.
NOTE: It is recommended that new
retaining rings be installed.

ACTUATOR PLUNGER SERVICING

7

27

32

31

5

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 18

CHECK VALVE SERVICING

Before servicing the check valve
components, first shut off the suction
line and then the discharge line to the
pump. Next, shut off the compressed air
supply, bleed air pressure from the
pump, and disconnect the air supply line
from the pump. Drain any remaining fluid
from the pump. The pump can now be
removed for service.

To access the check valve
components, remove the manifold
(item 23 or item 22 not shown). Use a
9/16" wrench or socket to remove the
fasteners. Once the manifold is removed,
the check valve components can be
seen.

Inspect the check balls (items 2) for
wear, abrasion, or cuts on the spherical
surface. The check valve seats (item 34)
should be inspected for cuts, abrasive
wear, or embedded material on the
surfaces of both the external and internal
chambers. The spherical surface of the
check balls must seat flush to the
surface of the check valve seats for the
pump to operate to peak efficiency.
Replace any worn or damaged parts as
necessary.

Re-assemble the check valve
components. The seat should fit into the
counter bore of the outer chamber.

The pump can now be reassembled,
reconnected and returned to operation.

Check Valve Drawing

with Metallic Seats

METALLIC SEATS

Two o-rings (or conductive PTFE
seals) (item 27) are required for metallic
seats.

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

x75mdl1sm-rev0812

with Non-Metallic

Seats

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

Page 19

PUMPING HAZARDOUS LIQUIDS

When a diaphragm fails, the pumped
liquid or fumes enter the air end of the
pump. Fumes are exhausted into the
surrounding environment. When pumping
hazardous or toxic materials, the
exhaust air must be piped to an
appropriate area for safe disposal. See
illustration #1 at right.

This pump can be submerged if the
pump materials of construction are
compatible with the liquid being pumped.
The air exhaust must be piped above
the liquid level. See illustration #2 at
right. Piping used for the air exhaust must
not be smaller than 1" (2.54 cm)
diameter. Reducing the pipe size will
restrict air flow and reduce pump
performance. When the pumped product
source is at a higher level than the pump
(flooded suction condition), pipe the
exhaust higher than the product source
to prevent siphoning spills. See
illustration #3 at right.

CONVERTING THE PUMP FOR
PIPING THE EXHAUST AIR

The following steps are necessary to
convert the pump to pipe the exhaust
air away from the pump.

Remove the muffler (item 42). The
air distribution valve (item 1) has 1" NPT
threads for piped exhaust.

IMPORTANT INSTALLATION

NOTE: The manufacturer recommends

installing a flexible conductive hose or
connection between the pump and any
rigid plumbing. This reduces stresses on
the molded threads of the air exhaust
port. Failure to do so may result in
damage to the air distribution valve body.

Any piping or hose connected to
the pump’s air exhaust port must be
conductive and physically supported.
Failure to support these connections
could also result in damage to the air
distribution valve body.

Air Valve Assembly

1

42

On ATEX compliant units
the pump comes equipped
with a standard metal
muffler

CONVERTED EXHAUST ILLUSTRATION

PUMP INSTALLATION AREA

1" DIAMETER AIR

EXHAUST PIPING

Illustration #1

LIQUID
LEVEL

SUCTION

LINE

Illustration #2

LIQUID
LEVEL

SAFE AIR
EXHAUST
DISPOSAL
AREA

MUFFLER

MUFFLER

1" DIAMETER AIR
EXHAUST PIPING

MUFFLER

1" DIAMETER AIR
EXHAUST PIPING

x75mdl1sm-rev0812

SUCTION

LINE

Illustration #3

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 20

Grounding The Pump

One eyelet end is fastened to the pump hardware.

One eyelet end is installed to a true earth ground.

This 8 foot long (244 centimeters) Ground Strap, part
number 920-025-000, can be ordered as a service part.

To reduce the risk of static electrical sparking, this
pump must be grounded. Check the local electrical
code for detailed grounding instruction and the type of
equipment required.

WARNING

Take action to prevent static
sparking. Fire or explosion can
result, especially when handling
flammable liquids. The pump,
piping, valves, containers or other
miscellaneous equipment must be
grounded.

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 21

Declaration of Conformity

Manufacturer: IDEX Pump Technologies (Ireland) Ltd.,

A Unit of IDEX Corporation, R79, Shannon, Co Clare, IRELAND.

Certifies that Air-Operated Double Diaphragm Pump B and X Series, comply with

the European Community Directive 2006/42/EC on Machinery, according to Annex VIII.

This product has used Harmonized Standard EN809:1998+A1:2009, Pumps and Pump Units for

Liquids - Common Safety Requirements, to verify conformance.

October 20, 2005

Signature of authorized person

Date of issue

Des Monaghan
Printed name of authorized person

Revision Level: F

Production & Tech Manager
Title

August 28, 2012
Date of revision

EC Declaration of Conformity

In accordance with ATEX Directive 94/9/EC,

Equipment intended for use in potentially explosive environments.

Manufacturer: IDEX Pump Technologies (Ireland) Ltd.,

A Unit of IDEX Corporation, R79, Shannon, Co Clare, IRELAND.

AODD Pumps Equipped with Aluminium

Type Examination Certificate: KEMA 09ATEX0072 X

AODD (Air-Operated Double Diaphragm) Pumps

EC Type Examination Certificate No. Pumps: KEMA 09ATEX0071 X
KEMA Quality B.V.
Utrechtseweg 310
6812 AR Arnhem, The Netherlands

DATE/APPROVAL/TITLE:
27 MAY 2010

Applicable Standard:

EN13463-1: 2001,
EN13463-5: 2003

Production and Technical Manager