Graco 313435T 1050 Air Operated Diaphragm Pump Users Manual 313435T, Pump, Repair/Parts, English

2015-04-02

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Repair/Parts

Husky® 1050 Air-Operated
Diaphragm Pump

313435T
EN

1-inch pump with modular air valve for fluid transfer applications.
For professional use only.
See page 4 for model information, including approvals.
125 psi (0.86 MPa, 8.6 bar) Maximum Fluid Working Pressure
125 psi (0.86 MPa, 8.6 bar) Maximum Air Input Pressure

1050P Polypropylene
1050C Conductive
Polypropylene
1050F PVDF

Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.

Center
Flange

ti13843a

1050A Aluminum

1050S Stainless Steel
1050H Hastelloy

End
Flange

ti13946a

ti14342a

ti13844a

Related Manuals

Contents
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
To Find Your Nearest Distributor . . . . . . . . . . . . . . 3
To Specify the Configuration of a New Pump . . . . 3
To Order Replacement Parts . . . . . . . . . . . . . . . . . 3
Distributor Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pump Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ATEX Certifications . . . . . . . . . . . . . . . . . . . . . . . . . 5
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pressure Relief Procedure . . . . . . . . . . . . . . . . 10
Repair or Replace Air Valve . . . . . . . . . . . . . . . 10
DataTrak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Check Valve Repair . . . . . . . . . . . . . . . . . . . . . . 14
Diaphragms and Center Section . . . . . . . . . . . . 15
Torque Instructions . . . . . . . . . . . . . . . . . . . . . . 18

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Parts/Kits Quick Reference . . . . . . . . . . . . . . . . 21
Center Section . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Air Valve and Data Monitoring . . . . . . . . . . . . . . 24
Fluid Covers and Manifolds . . . . . . . . . . . . . . . . 26
Seats and Check Ball . . . . . . . . . . . . . . . . . . . . 28
Diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Manifold O-Rings . . . . . . . . . . . . . . . . . . . . . . . . 31
DataTrak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Graco Standard Husky Pump Warranty . . . . . . . . 34
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 34

Related Manuals

2

Manual

Description

312877

Husky 1050 Air-Operated Diaphragm Pump, Operation

313597

Husky 1050A UL-Listed Diaphragm Pump, Operation

313840

DataTrak, Instructions/Parts

406824

Pulse Count Kits, Instructions

406825

Reed Switch with Solenoid Kits, Instructions

406826

Torque Instructions (Manifolds and Fluid Covers)

313435T

To Find Your Nearest Distributor

To Find Your Nearest Distributor
1. Visit www.graco.com.
2. Click on Where to Buy and use the Distributor Locator.

To Specify the Configuration of a New Pump
Please call your distributor.
OR

1. Use the Online Husky Selector Tool at wwwd.graco.com/training/husky/index.html.
2. If the link does not work, you will find the selector tool on the Process Equipment page at www.graco.com.

To Order Replacement Parts
Please call your distributor.

Distributor Note
1. To find part numbers for new pumps or kits, use the Online Husky Selector Tool.
2. To find part numbers for replacement parts:
a. Use the 20-digit number from the ID plate on the pump. If you only have the Graco 6-digit part number, use
the selector tool to find the corresponding 20-digit number.

b. Use the Configuration Number Matrix on the next page to understand which parts are described by each
digit.

c. Refer to the main Parts illustration and to the Parts/Kits Quick Reference. Follow the page references on
these two pages for further ordering information, as needed.

3. Please call Graco Customer Service to order.

313435T

3

Pump Matrix

Pump Matrix
Check the identification plate (ID) for the 20-digit Configuration Number
of your pump. Use the following matrix to define the components of your
pump.
Sample Configuration Number

1050A A01A A1

PART NO.

CONFIGURATION NO.

DATE CODE SERIES MAX WPR PSI-bar

SS BN BN

Pump Model Center
Fluid
Seats Balls
Section and Covers and
Air Valve
Manifolds

SERIAL NO.

MADE IN

PT

Diaphragms Manifold
O-Rings

Pump Configuration
Number
ti14103a

Pump Model
(1 inch ports, 50 gpm)

Center Section and
Air Valve Material

Air Valve/Monitoring

1050A★
A01A Standard
Aluminum
A01B Pulse Count✖
1050C★
Aluminum A01C DataTrak✖
Conductive
A01D Remote
Polypropylene
A01E Optional FKM Seals
1050F
C01A Standard
PVDF
Conductive C01B Pulse Count✖
Polypropylene C01C DataTrak✖
1050H‡
Hastelloy
C01D Remote
1050P
P01A Standard
Polypropylene
P01B Pulse Count✖
Polypropylene
1050S‡
P01C DataTrak✖
Stainless Steel
P01D Remote
★, ‡, or ✖: See ATEX Certifications, on page 5.
Check Valve Seats

Check Valve Balls

Fluid Covers and Manifolds

A1
A2
C1
C2
F1
F2
H1
H2
P1
P2
S1
S2

Aluminum, standard ports, inch
Aluminum, standard ports, metric
Conductive polypropylene, center flange
Conductive polypropylene, end flange
PVDF, center flange
PVDF, end flange
Hastelloy, standard ports, inch
Hastelloy, standard ports, metric
Polypropylene, center flange
Polypropylene, end flange
Stainless steel, standard ports, inch
Stainless steel, standard ports, metric

Diaphragm

AC Acetal

AC Acetal

BN Buna-N

AL Aluminum

BN Buna-N

CO Polychloroprene Overmolded

BN Buna-N

CR Polychloroprene Standard

FK FKM Fluoroelastomer

FK FKM Fluoroelastomer CW Polychloroprene Weighted GE Geolast
GE Geolast®

FK FKM Fluoroelastomer

PO PTFE/EPDM Overmolded

PP Polypropylene

GE Geolast

PT PTFE/EPDM Two-Piece

PV PVDF

PT PTFE

SP Santoprene

SP Santoprene®

SP Santoprene

TP TPE

SS 316 Stainless Steel

SS 316 Stainless Steel

TP TPE

TP TPE

4

Manifold O-Rings

— Models with
Buna-N, FKM
Fluoroelastomer or TPE
seats do not
use o-rings.
PT PTFE

313435T

ATEX Certifications

ATEX Certifications
★ All 1050A (Aluminum) and
1050C (Conductive Polypropylene)
pumps are certified:

‡ 1050S (Stainless Steel) and 1050H
(Hastelloy) pumps with aluminum or
conductive polypropylene centers are
certified:

✖ DataTrak and Pulse Count are
certified:

0359

II 2 GD c IIC T4
II 2 GD c IIC T4

9902471
Class I, Div. 1,
Group D T3A

II 1 G
Ex ia IIA T3 Ga
ITS13ATEX27862X

Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. When
these symbols appear in the body of this manual, refer back to these Warnings. Additional, product-specific warnings
may be found throughout the body of this manual where applicable.

WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
Static charge may build up on plastic parts during cleaning and could discharge and ignite flammable
materials and gases. To help prevent fire and explosion:
• Clean plastic parts in a well ventilated area.
• Do not clean with a dry cloth.
• Do not operate electrostatic guns in equipment work area.

313435T

5

Warnings

WARNING
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS from distributor or retailer.
• Do not leave the work area while equipment is energized or under pressure. Turn off all equipment
and follow the Pressure Relief Procedure in this manual when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s replacement parts only.
• Do not alter or modify equipment.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and
cause serious injury.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
THERMAL EXPANSION HAZARD
Fluids subjected to heat in confined spaces, including hoses, can create a rapid rise in pressure due to
the thermal expansion. Over-pressurization can result in equipment rupture and serious injury.
•
•

Open a valve to relieve the fluid expansion during heating.
Replace hoses proactively at regular intervals based on your operating conditions.

PRESSURIZED ALUMINUM PARTS HAZARD
Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical
reaction and equipment rupture. Failure to follow this warning can result in death, serious injury, or property damage.
• Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
fluids containing such solvents.
• Many other fluids may contain chemicals that can react with aluminum. Contact your material
supplier for compatibility.
PLASTIC PARTS CLEANING SOLVENT HAZARD
Use only compatible water-based solvents to clean plastic structural or pressure-containing parts. Many
solvents can degrade plastic parts and cause them to fail, which could cause serious injury or property
damage. See Technical Data in this and all other equipment instruction manuals. Read fluid and solvent
manufacturer’s warnings.

6

313435T

Warnings

WARNING
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
• Read MSDS’s to know the specific hazards of the fluids you are using.
• Route exhaust away from work area. If diaphragm ruptures, fluid may be exhausted with air.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
BURN HAZARD
Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe
burns:
• Do not touch hot fluid or equipment.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating
area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic
fumes, burns, and hearing loss. This equipment includes but is not limited to:
• Clothing and respirator as recommended by the fluid and solvent manufacturer
• Protective eyewear, gloves, and hearing protection.

313435T

7

Troubleshooting

Troubleshooting

Problem

Pump cycles but will not prime.

Cause

Solution

Pump is running too fast, causing
cavitation before prime

Lower air inlet pressure.

Check valve ball severely worn or
wedged in seat or manifold.

Replace ball and seat. See page 14.

Seat severely worn.

Replace ball and seat. See page 14.

Outlet or inlet clogged.

Unclog.

Inlet or outlet valve closed.

Open.

Inlet fittings or manifolds loose.

Tighten.

Manifold o-rings damaged.

Replace o-rings. See page 14.

Pump cycles at stall or fails to hold
pressure at stall.

Worn check valve balls, seats, or
o-rings.

Replace. See page 28.

Pump will not cycle, or cycles once
and stops.

Air valve is stuck or dirty.

Disassemble and clean air valve. See
page 11. Use filtered air.

Check valve ball severely worn and
wedged in seat or manifold.

Replace ball and seat. See page 14.

Pilot valve worn, damaged, or
plugged.

Replace pilot valve. See page 15.

Air valve gasket damaged.

Replace gasket. See page 10.

Check valve ball is wedged into seat
due to overpressurization.

Install pressure relief kit. See Accessories, page 31.

Dispensing valve clogged.

Relieve pressure and clear valve.

Air tubing is plugged
(remote air control models).

Clear tube.

Clogged suction line.

Inspect; clear.

Sticky or leaking check valve balls.

Clean or replace. See page 14.

Pump operates erratically.

8

Diaphragm (and backup) ruptured.

Replace. See page 15.

Restricted exhaust.

Remove restriction.

Pilot valves damaged or worn.

Replace pilot valves. See page 15.

Air valve damaged.

Replace air valve. See page 10.

Air valve gasket damaged.

Replace air valve gasket. See
page 10.

Air supply erratic.

Repair air supply.

Exhaust muffler icing.

Use drier air supply or use low ice
muffler (Graco part 102656).

313435T

Troubleshooting

Problem

Air bubbles in fluid.

Exhaust air contains fluid being
pumped.

Moisture in exhaust air.

Cause

Solution

Suction line is loose.

Tighten.

Diaphragm (and backup) ruptured.

Replace. See page 15.

Loose manifolds, damaged seats or
manifold o-rings.

Tighten manifold bolts or replace
seats or o-rings. See page 14.

Diaphragm shaft bolt o-ring damaged.

Replace o-ring.

Pump cavitation.

Reduce pump speed or suction lift.

Loose diaphragm shaft bolt.

Tighten.

Diaphragm (and backup) ruptured.

Replace. See page 15.

Loose diaphragm shaft bolt.

Tighten or replace. See page 15.

Diaphragm shaft bolt o-ring damaged.

Replace o-ring. See page 15.

High inlet air humidity.

Use drier air supply.

Pump exhausts excessive air at stall. Worn air valve cup or plate.

Replace cup and plate. See page 11.

Damaged air valve gasket.

Replace gasket. See page 10.

Damaged pilot valve.

Replace pilot valves. See page 15.

Worn shaft seals or bearings.

Replace shaft seals or bearings. See
page 15.

Air tubing is damaged or loose
(remote air control models).

Replace tubing or secure connection.

Regulate remote pilot air pressure to
Remote air pressure is higher than
pump air pressure (remote air control be equal to or less than main air.
models).
Pump leaks air externally.

Air valve or fluid cover screws loose.

Tighten.

Diaphragm damaged.

Replace diaphragm. See page 15.

Air valve gasket damaged.

Replace gasket. See page 10.

Remote air pressure is higher than
Regulate remote pilot air pressure to
pump air pressure (remote air control be equal to or less than main air.
models).
Pump leaks fluid externally from
joints.
Pump leaks fluid externally through
manifold or fluid cover.

313435T

Loose manifold screws or fluid cover
screws.

Tighten manifold screws or fluid
cover screws. See page 18.

Manifold o-rings worn out.

Replace o-rings. See page 14.

Excessive pump speed or inlet
starvation.

Replace manifold and reduce pump
speed or improve pump feed.

9

Repair

Repair

WARNING
WARNING
SPECIAL CONDITIONS FOR SAFE USE
Equipment must comply with the following
conditions to avoid a hazardous condition
which can cause fire or explosion.
• All label and marking material must be
cleaned with a damp cloth (or equivalent).
• The electronic monitoring system is
required to be grounded. See Grounding
instructions in your pump operation manual.

Pressure Relief Procedure

Trapped air can cause the pump to cycle unexpectedly,
which could result in serious injury from splashing.

ti14094a

FIG. 1. Reed switch assembly and air line removal
4. For motors with DataTrak: Remove two screws
and the solenoid bracket. Pull the solenoid out of the
air valve.
Aluminum Model
Shown
109

1. Shut off the air supply to the pump.
2. Open the dispensing valve, if used.
3. Open the fluid drain valve to relieve fluid pressure.
Have a container ready to catch the drainage.

Repair or Replace Air Valve

Replace Complete Air Valve
1. Stop the pump. Relieve the pressure. See Pressure
Relief Procedure in previous section.
2. Disconnect the air line to the motor.
3. For motors with Pulse Count or DataTrak:
Remove screw to disconnect the reed switch
assembly from the air valve.

ti14095a

FIG. 2. Solenoid removal
5. Remove screws (109, metal pumps) or nuts (112,
plastic pumps). Remove the air valve and gasket
(108).
6. To repair the air valve, go to Disassemble the Air
Valve, step 1, in next section. To install a replacement air valve, continue with step 7.
7. Align the new air valve gasket (108) on the center
housing, then attach the air valve. See Torque
Instructions, page 18.

10

313435T

Repair

8. For motors with DataTrak: Remember to reattach
the solenoid bracket and the solenoid.
9. For motors with Pulse Count or DataTrak: Use
screw to attach the reed switch assembly to the new
air valve. Reconnect cable.
10. Reconnect the air line to the motor.

Replace Seals or Rebuild Air Valve
NOTE: Repair kits are available. See page 25 to order
the correct kit(s) for your pump. Air Valve Seal Kit parts
are marked with a †. Air Valve Repair Kit parts are
marked with a ◆. Air Valve End Cap Kit parts are
marked with a ✠.
Disassemble the Air Valve
1. Perform steps 1-5 under Replace Complete Air
Valve, page 10.
2. See FIG. 4. Use a Torx screwdriver (T8 for aluminum
centers, T9 for plastic centers) to remove two
screws (209). Remove the valve plate (205),
cup assembly (212-214), spring (211), and detent
assembly (203).
3. Pull the cup (213) off of the base (212). Remove the
o-ring (214) from the cup.
4. See FIG. 4. Remove the retaining ring (210) from
each end of the air valve. Use the piston (202) to
push the end caps (207, 217) out of the ends.
Remove end cap o-rings (206). If pump model is
equipped with a runaway protection solenoid, also
remove the solenoid release button (218) and
o-ring (219).
5. Remove the u-cup seals (208) from each end of the
piston (202), then remove the piston. Remove the
detent cam (204) from the air valve housing (201).

Reassemble the Air Valve
NOTE: Apply lithium-based grease whenever instructed
to grease.
1. Use all parts in the repair kits. Clean other parts and
inspect for damage. Replace as needed.
2. Grease the detent cam (204) and install into housing (201).
3. Grease the u-cups (208) and install on the piston
with lips facing toward the center of the piston.

208◆†
Lips face down
202◆

208◆†
Lips face up
ti12754a

FIG. 3. Air valve u-cup installation
4. Grease both ends of the piston (202) and install it in
the housing (201), with the flat side toward the cup
(212). Be careful not to tear u-cups (208) when sliding piston into housing.
5. Standard or Pulse Count models (no runaway
protection solenoid): Grease new o-rings (206)
and install on the end caps (207). Install the end
caps into the housing.
DataTrak models (with runaway protection solenoid): Orient the air valve so the air inlet faces forward. Grease and install new o-ring (206) on
right-side end cap (207). Grease and install new
o-ring (206) and the solenoid release button (218)
and o-ring (219) on left-side end cap (217). Install
the end caps into the housing.
6. Install a retaining ring (210) on each end to hold end
caps in place.

313435T

11

Repair

209◆†
205◆ 3
212◆ 3
210✠
206◆†✠ 1
207✠

214◆ 1
213◆
211◆
203◆ 1
204◆ 1
air
inlet

210✠
206◆†✠ 1

208◆† 1 2

217✠
219✠
DataTrak Models
218✠

202◆ 1

with Runaway
Protection

208◆† 1 2
207✠
206◆†✠ 1
210✠

201

1 Apply lithium-based grease.
2 U-cup lips must face piston.
Apply lithium-based grease to

3 contact surface.

ti14026b

FIG. 4. Air valve assembly
7. Grease and install the detent assembly (203) into
the piston. Install the o-ring (214) on the cup (213).
Apply a light film of grease to the outside surface of
the o-ring and the inside mating surface of the base
(212).
Orient the end of the base that has a magnet toward
the end of the cup that has the larger cutout.
Engage the opposite end of the parts. Leave the
end with the magnet free. Tilt the base toward the
cup and fully engage the parts, using care so that
the o-ring remains in place. Install the spring (211)
onto the protrusion on the cup. Align the magnet in
the base with the air inlet and install the cup assembly.

8. Grease the cup side and install the valve plate
(205). Align the small hole in the plate with the air
inlet. Tighten the screws (209) to hold it in place.

205

212

small
hole
magnet

ti14097b

FIG. 6. Air valve cup and plate installation

211
213

214

212
ti19675a

FIG. 5

12

313435T

Repair

DataTrak
NOTE: See DataTrak manual, 313840, for all DataTrak
service and repair information.

Replace DataTrak Battery or Fuse

WARNING
WARNING
To reduce the risk of fire and explosion, the
battery and fuse must be replaced in a
non-hazardous location. Follow all instructions in your pump operation manual.
Use only an approved replacement battery,
and an approved fuse (see pump operation
manual). Use of an unapproved battery or
fuse will void Graco’s warranty and Intertek
and Ex approvals.

313435T

13

Repair

Check Valve Repair

1 Torque to 100 in-lb (11.3 N•m). See Torque Instructions,
page 18.

2 Arrow (A) must point toward outlet manifold.
3 Not used on some models.
NOTE: Kits are available for new check valve balls and
seats in a range of materials. See page 28 to order kits
in the material(s) desired. An o-ring kit and fastener kits
also are available.

Aluminum pump
shown

NOTE: To ensure proper seating of the check balls,
always replace the seats when replacing the balls. Also,
on models with manifold o-rings, replace the o-rings.

6 1

4

Disassembly
11

1. Follow the Pressure Relief Procedure on page 10.
Disconnect all hoses.

12 3

2. Remove the pump from its mounting.

10

NOTE: For plastic pumps (1050P, 1050C, and 1050F),
use hand tools only until thread-locking adhesive
patch releases.

12 3

3. Use a 10 mm socket wrench to remove the outlet
manifold fasteners (6). See FIG. 7.

3

4. Remove the o-rings (12, not used on some models),
seats (10), and balls (11).

A 2

5. Turn the pump over and remove the inlet manifold.
Remove the o-rings (12, not used on some models),
seats (10), and balls (11).

7

Reassembly

11

1. Clean all parts and inspect for wear or damage.
Replace parts as needed.

12 3

2. Reassemble in the reverse order, following all notes
in FIG. 7. Be sure the ball checks (10-12) and manifolds (4, 5) are assembled exactly as shown. The
arrows (A) on the fluid covers must point toward the
outlet manifold (4).

10
12 3

5
1 6
FIG. 7. Ball check valve assembly

14

ti14098a

313435T

Repair

Diaphragms and Center Section

b.

Plastic Pumps: Use a 1-1/4 socket or box end
wrench on the hex of a fluid side diaphragm
plate to remove. Then remove all parts of the
diaphragm assembly. See FIG. 8.
Metal Pumps: Remove the bolt (304) from one
side of the diaphragm shaft, then remove all
parts of that diaphragm assembly. See FIG. 8.

c.

Follow the same procedure to disassemble the
other diaphragm assembly.

Disassembly
NOTE: Diaphragm kits are available in a range of materials and styles. See page 29 to order the correct diaphragms for your pump. A Center Rebuild Kit also is
available. See page 23. Parts included in the Center
Rebuild Kit are marked with an *. For best results, use
all kit parts.

5. Inspect the diaphragm shaft (104) for wear or
scratches. If it is damaged, inspect the bearings
(105) in place. If they are damaged, use a bearing
puller to remove them.

1. Follow the Pressure Relief Procedure on page 10.

NOTE: Do not remove undamaged bearings.

2. Remove the manifolds and disassemble the ball
check valves as explained on page 14.

6. Use an o-ring pick to remove the u-cup packings
(106) from the center housing. Bearings (105) can
remain in place.

3. Overmolded Diaphragms
a. Orient the pump so one of the fluid covers faces
up. Use a 10 mm socket wrench to remove the
fluid cover screws (7), then pull the fluid cover
(3) up off the pump.
b.

The exposed diaphragm (15) will screw off by
hand from the diaphragm shaft (104). The diaphragm shaft bolt will remain attached to the
diaphragm. Remove the air side diaphragm
plate (14).

c.

Turn the pump over and remove the other fluid
cover. Pull the diaphragm and shaft up through
the center housing.

7. If necessary, use a socket wrench to remove the
pilot valves (101) or pilot inserts (113, remote air
control models).
8. Remove the pilot valve cartridges only if necessary
due to a known or suspected problem. After removing pilot valves, use a hex to remove the cartridges
(102), then remove cartridge o-rings (103). If
stripped, use two screwdrivers to screw out the cartridge.
NOTE: Do not remove undamaged pilot valve
cartridges.

d. Grasp the diaphragm firmly and use a wrench
on the flats of the shaft to remove. Also remove
the air side diaphragm plate (14). Continue with
Step 5.
4. All Other Diaphragms
a. Orient the pump so one of the fluid covers faces
up. Use a 10 mm socket wrench to remove the
fluid cover screws (7), then pull the fluid cover
up off the pump. Turn the pump over and
remove the other fluid cover.

313435T

15

Repair

104* 2

14 1

303 5

14 1

15 4

15 4

13 1
301
104* 2

TP, SP, BN,
FK, and GE
models

304 3

PO and CO
models

(Metal pumps)

3 13

ti14037b

(Plastic pumps)

ti14022b

1 Rounded side faces diaphragm.

305 4

2 Apply lithium-based grease.
15 4

3 Torque to 20-25 ft-lb (27-34 N•m)

13 1

at 100 rpm maximum.

4 AIR SIDE markings on diaphragm
must face center housing.

5

2 104*

If screw comes loose or is
replaced, apply permanent (red)
Loctite® or equivalent to
diaphragm side threads. Apply
primer and medium-strength (blue)
Loctite® or equivalent to shaft side
threads.

301

1 14
304 3

PT models
(Plastic pumps)

6 Lips must face out of housing.

(Metal pumps)
ti14021b

7 Cartridges (102) must be installed
before pilot valves (101) or inserts
(113, for remote air controls).

3 13

8 Torque to 20-25 in.-lb (2.3-2.8 N•m).

2 105*

6

2 106*
7 2 102*
2 103*
103* 2
106* 2

113 2

7

6

8

(remote air control)

2

7

8 101*

110

7

2 102*
2 105*
2 104*

ti14025b

FIG. 8. Assemble diaphragms and center section
16

313435T

Repair

Reassembly

All Other Diaphragms - Metal Pumps:

Follow all notes in FIG. 8. These notes contain
important information.

a. Install the o-ring (301) on the shaft bolt (304).
b.

Assemble the fluid side plate (13), the diaphragm (15), the backup diaphragm (305, if
present), and the air side diaphragm plate (14)
on the bolt exactly as shown in FIG. 8.

c.

Apply medium-strength (blue) Loctite or equivalent to the bolt (304) threads. Screw the bolt into
the shaft hand tight.

NOTE: Apply lithium-based grease whenever instructed
to grease.
1. Clean all parts and inspect for wear or damage.
Replace parts as needed.
2. If removed, grease and install the new pilot valve
cartridges (102) and cartridge o-rings (103). Screw
in until seated.
NOTE: Cartridges (102) must be installed before pilot
valves (101).
3. Grease and install the pilot valves (101). Torque to
20-25 in.-lb (2.3-2.8 N•m). Do not over-torque.

d. Grease the shaft u-cups (106) and the length
and ends of the diaphragm shaft (104). Slide
the shaft into the housing.
e. Repeat Steps a-c for the other diaphragm
assembly.
f.

4. Grease and install the diaphragm shaft u-cup packings (106) so the lips face out of the housing.

Hold one shaft bolt with a wrench and torque
the other bolt to 20-25 ft-lb (27-34 N•m) at 100
rpm maximum. Do not over-torque.

5. If removed, insert the new bearings (105) into the
center housing. Use a press or a block and rubber
mallet to press-fit the bearing so it is flush with the
surface of the center housing.

g. Reattach the first fluid cover (3). See Torque
Instructions, page 18. Go to Step 7.

6. Overmolded Diaphragms:

a. Assemble the diaphragm (15), the backup diaphragm (305, if present), and the air side diaphragm plate (14) on the fluid side plate (13)
exactly as shown in FIG. 8.

a. Clamp the shaft flats in a vise.
b.

c.

If diaphragm setscrew comes loose or is
replaced, apply permanent (red) Loctite® or
equivalent to diaphragm side threads. Screw
into diaphragm until tight.
Assemble the air side plate (14) onto the diaphragm. The rounded side of the plate must
face the diaphragm.

d. Apply medium-strength (blue) Loctite or equivalent to the threads of the diaphragm assembly.
Screw the assembly into the shaft as tight as
possible by hand.
e. Grease the shaft u-cups (106) and the length
and ends of the diaphragm shaft (104). Slide
the shaft into the housing.
f.

All Other Diaphragms - Plastic Pumps:

b.

Apply medium-strength (blue) Loctite or equivalent to the threads of the screw on the fluid side
plate. Screw the assembly into the shaft
hand-tight.

c.

Grease the shaft u-cups (106) and the length
and ends of the diaphragm shaft (104). Slide
the shaft into the housing.

d. Repeat for the other diaphragm assembly
e. Hold one of the plates with a wrench, and
torque the other plate to 20-25 ft-lb (27-34 N•m)
at 100 rpm maximum. Do not over-torque.
f.

Reattach the first fluid cover (3). See Torque
Instructions, page 18.

Reattach the first fluid cover (3). See Torque
Instructions, page 18.

g. Repeat Steps b and c for the other diaphragm
assembly. Go to Step 7.

313435T

17

Repair

7. To ensure proper seating and extend diaphragm life,
attach the second fluid cover with air pressure on
the pump.
a. See FIG. 9. Place the supplied tool (302) where
the air valve gasket (108) normally goes. Arrows
(A) must face toward the fluid cover that is
already attached.

Torque Instructions
NOTE: Fluid cover and manifold fasteners have a
thread-locking adhesive patch applied to the threads. If
this patch is worn, the screws may loosen during operation. Replace screws with new ones, or apply mediumstrength (blue) Loctite or equivalent to the threads.
If fluid cover or manifold fasteners have been loosened,
it is important to torque them using the following procedure to improve sealing.

302

A

NOTE: Always completely torque fluid covers before
torquing manifolds.
Start all fluid cover screws a few turns. Then turn down
each screw just until head contacts cover. Then turn
each screw by 1/2 turn or less working in a crisscross
pattern to specified torque. Repeat for manifolds.
Fluid cover and manifold fasteners:
100 in-lb (11.3 N•m)
Retorque the air valve fasteners (V) in a crisscross pattern to specified torque.

ti14120a

FIG. 9. Fluid cover tool
b.

Reattach the air valve.

c.

Supply a minimum of 20 psi (0.14 MPa, 1.4 bar)
air pressure to the air valve. Shop air may be
used. The diaphragm will shift so the second
fluid cover will seat properly. Keep air pressure
on until the second fluid cover is attached.

Air valve fasteners:
55 in-lb (6.2 N•m) for plastic center sections
80 in-lb (9.0 N•m) for metal center sections

d. Attach the second fluid cover (3). See Torque
Instructions, page 18.
e. Remove the air valve and the tool (302), replace
the gasket (108), and reattach the air valve. See
Torque Instructions, page 18.
NOTE: If you are replacing the diaphragms but not the
air valve, you must remove the air valve and gasket, put
the tool in place of the gasket, and put the air valve back
on to get the air pressure needed for proper installation
of the second fluid cover. Remember to remove the tool
and replace the gasket when finished.
8. Reassemble the ball check valves and manifolds as
explained on page 14.

18

313435T

Repair
















ti18448a









9









ti18449a

FIG. 10. Torque sequence

313435T

19

Parts

Parts
8

9 1

6

see page 27

see page 27

4
see page 26

18

11
see page 28

1
see page 22

10
see page 28

2
see page 24

3
see page 26

15
see page 29

13

7

see page 30

see page 27

12 1
see page 31

5
see page 26

1 Not used on some models.

20

ti14023a

313435T

Parts

Parts/Kits Quick Reference
Use this table as a quick reference for parts/kits. See pages indicated in table for full description of kit contents.
Ref. Part/Kit Description

Qty.

Ref. Part/Kit Description

Qty.

1

1

10

4

2
3

Varies

Varies
24B653
24C051
24D347
24C050
24C052
24C061

4
24B649
24B650
24C039
24C042
24D343
24D344
24C038
24C041
24C040
24C043
24C057
24C058
5
24B651
24B652
24C045
24C048
24D345
24D346
24C044
24C047
24C046
24C049
24C059
24C060
6
24B654
24C056
24C064
7
24B654
24C055
24C063
24C056
8
9

24C617
24B910

313435T

Center Section; not sold separately, see
page 22
Aluminum
Conductive Polypropylene
Polypropylene
Air Valve; see page 24
Fluid Cover Kits; see page 26
Aluminum
Conductive Polypropylene
Hastelloy
Polypropylene
PVDF
Hastelloy
Outlet Manifold Kits; see pages 26-27
Aluminum, npt
Aluminum, bspt
Conductive Poly, center flange
Conductive Poly, end flange
Hastelloy, npt
Hastelloy, bspt
Polypropylene, center flange
Polypropylene, end flange
PVDF, center flange
PVDF, end flange
Stainless Steel, npt
Stainless Steel, bspt
Inlet Manifold Kits; see page 26-27
Aluminum, npt
Aluminum, bspt
Conductive Poly, center flange
Conductive Poly, end flange
Hastelloy, npt
Hastelloy, bspt
Polypropylene, center flange
Polypropylene, end flange
PVDF, center flange
PVDF, end flange
Stainless Steel, npt
Stainless Steel, bspt
Manifold Fasteners; 8-pack, see page 27
Aluminum
Conductive Poly, Poly, and PVDF
Stainless Steel and Hastelloy
Fluid Cover Fasteners; 8-pack,
see page 27
Aluminum
Conductive Poly, Poly, and PVDF
Stainless Steel or Hastelloy,
aluminum center
Stainless Steel or Hastelloy,
plastic center
Plug; 6-pack, aluminum pumps only
Pressure Relief Valve; fuel dispense
model only, see page 27

24B630
24B631
24B632
24B638
24B633
24B635
24C721
24B636
24B637
24B634

1
2

11
1

12
1

24B639
24B640
24B643
24B644
24B648
24B641
24B645
24B646
24B647
24B642
24B655

13

14

24C035
24C036
24D342
24C036
24C037
24C062
-----

15
16

16

18
19

6
1

24B622
24B629
24B623
24B628
24B624
24B625
24B626
24B627
24F926
24D642

116343
116344
20▲ 188621

Seats; 4-pack, includes 8 o-rings where
needed, see page 28
Acetal
Aluminum
Buna-N
FKM Fluoroelastomer
Geolast
Polypropylene
PVDF
Santoprene
Stainless Steel
TPE
Check Balls; 4-pack, includes 8 o-rings,
see page 28
Acetal
Buna-N
Polychloroprene
Polychloroprene with SST core
FKM Fluoroelastomer
Geolast
PTFE
Santoprene
Stainless Steel
TPE
Manifold O-Ring (not used on some models); ptfe, 8-pack, see page 31
Fluid Side Diaphragm Plate; included in
Air and Fluid Plate Kits, see page 30
Aluminum
Conductive Polypropylene
Hastelloy
Polypropylene
PVDF
Stainless Steel
Air Side Diaphragm Plate (not visible);
included in Air and Fluid Plate Kits, see
Part 13 or page 30
Diaphragm Kits; see page 29
Buna-N Standard
FKM Fluoroelastomer Standard
Geolast Standard
Santoprene Standard
TPE Standard
Polychloroprene Overmolded
PTFE Overmolded
PTFE/EPDM Two-Piece
PTFE/Santoprene Two-Piece
Muffler; 3/4 npt, polypropylene
Screw, ground, M5 x 0.8; not shown
Pumps with aluminum air valve
Pumps with conductive poly air valve
Label, warning (not shown)

4

8
2

2

2

1
1

1

▲Replacement Warning labels, signs, tags, and cards
are available at no cost.
21

Parts

Center Section
Pump Size
and Material

Center Section

Fluid Covers
and Manifolds

Seats

Check
Balls

Diaphragm

Manifold
O-Rings

1050A

A01A

A2

AL

BN

TP

PT

Sample Configuration Number
Aluminum Center Section
(A01x, AC1x, AU1x, and AU3x)

air valve
detail, see
page 24
109*

2
108*

*105
*106
*102
*103

113

(remote air control)

*101

103*

110

Ref. Description

Qty.

101*
102*
103*
104*
105*
106*
108*
109*

2
2
2
1
2
2
1
4

110
112*
113

VALVE, pilot
CARTRIDGES, pilot valve receiver
O-RING, receiver cartridge
SHAFT, center
BEARING, center shaft
U-CUP, center shaft
GASKET, air valve
SCREW, M6 x 25, stainless steel, (for
aluminum center section models, Axxx)
HOUSING, center, not sold separately
NUTS (for plastic center section models,
C01x and P01x)
INSERT, remote pilot (for remote air
control models, xxxD)

*102
*106
*105

*104

ti14025a

Plastic Center Section
(C01x and P01x)
*112

2

*108

1
4
2
110

* Included in Center Section Rebuild Kit 24B621

22

ti14104a

313435T

Parts

Center Section Rebuild Kits (*)

Center Shaft Kits

A01A-A01D, AU1A, AU3A, AC1A,
C01A-C01D,
P01A-P01D

24B621

A01A-A01D, AU1A, AU3A, AC1A,
C01A-C01D,
P01A-P01D

24B656

A01E

24D730

A01E

24D731

Kits include:
•
•
•
•
•
•
•
•
•
•

Kit includes:
• 1 center shaft (104)
• 2 center shaft bearings (105)
• 2 center shaft u-cups (106)
All models

2 pilot valves (101)
2 pilot cartridges (102)
2 cartridge o-rings, buna-N (103)
1 center shaft (104)
2 center shaft bearings (105)
2 center shaft u-cups (106)
1 air valve gasket (108)
4 bolts, M6 x 25, for A01x pumps (109)
4 nuts, for P01x and C01x pumps (112)
8 o-rings, PTFE (12)

Center Shaft Bearing Kits
A01A-A01D, AU1A, AU3A, AC1A,
C01A-C01D,
P01A-P01D

24B658

A01E

24D732

Kit includes:
• 2 center shaft bearings (105)
• 2 center shaft u-cups (106)
All models

Pilot Valve Assembly Kits
A01A-A01D, AU1A, AU3A, AC1A,
C01A-C01D,
P01A-P01D

24B657

A01E

24C825

Ground Screws (Ref. 19)

Kits include:
•
•
•

The center housing (110) is not sold separately.

2 pilot valve assemblies (101)
2 pilot valve receiver cartridges (102)
2 receiver cartridge o-rings (103)

Ground Screw Kits
A01A-A01E,
AU1A, AU3A,
and AC1A
C01A-C01D
P01A-P01D

116343

116344
None

NOTE: xxxD models also require insert kit, shown
below.

Kit 24D043, Remote Pilot Inserts
xxxD (Remote Air Control)
Kit includes:
• 2 remote pilot inserts (113)

313435T

23

Parts

Air Valve and Data Monitoring
201 Standard (no reed switch) or

208◆†

Pulse Count (with reed switch)

202◆

220
208◆†

210✠

207✠
206◆†✠
210✠

206◆†✠
207✠
201

(Compatible with DataTrak
with runaway protection)

219◆†✠

◆204

206◆†✠

◆203
◆211
◆213

218✠

◆214

217✠

◆212

210✠

◆205
◆†209
ti14027b

Ref.

Description

Qty.

Ref.

Description

201
202◆
203◆
204◆
205◆
206◆†✠
207✠

HOUSING, not sold separately
PISTON
DETENT PISTON ASSEMBLY
CAM, detent
PLATE, air valve
O-RING
CAP, end
Standard (xxxA), Pulse Count (xxxB), or
Remote (xxxD)
DataTrak (xxxC)
U-CUP
SCREW
RETAINING RING
DETENT SPRING
BASE, cup
CUP
O-RING, cup
CAP, end (for DataTrak models with runaway
protection, xxxC)
BUTTON, solenoid release (for DataTrak
models with runaway protection, xxxC)

1
1
1
1
1
2

219◆†✠

O-RING (for DataTrak models with runaway 1
protection, xxxC)
REED SWITCH ASSEMBLY (for Pulse
1
Count models, xxxB, includes fastener)

208◆†
209◆†
210◆✠
211◆
212◆
213◆
214◆
217✠
218✠

24

2
1
2
2
2
1
1
1
1
1
1

220

Qty.

◆ Parts included in Air Valve Repair Kit. See page 25.
† Parts included in Air Valve Seals Kit. See page 24.
✠ Parts included in Air Valve End Cap Kit. See page
25.

Air Valve Seal Kits (†)
A01A-A01D, AU1A, AU3A, AC1A,
C01A-C01D,
P01A-P01D

24B769

A01E

24C983

Kit includes:
• 2 end cap o-rings (206)
• 2 piston u-cups (208)
• 2 screws, M3, shorter (209, for metal pumps)
• 2 screws, #4, longer (209, for plastic pumps)
• 1 solenoid release button o-ring (219)
• 1 air valve gasket (108)
All Models

313435T

Parts

Air Valve Repair Kits (◆)

Air Valve End Cap Kits (✠)

A01A-A01C, AU1A,
24B768
AU3A, AC1A,
C01A-C01C, P01A-P01C
A01D, C01D, P01D
24D044
A01E
24D699

AxxA, A01B, or A01D
A01E
C01A, C01B, or C01D
P01A, P01B, or P01D
A01C
C01C
P01C

Kits include:
• 1 air valve piston (202)
• 1 detent piston assembly (203)
• 1 detent cam (204)
• 1 air valve plate (205)
• 2 end cap o-rings (206)
• 2 piston u-cups (208)
• 2 screws, M3, shorter (209, for metal pumps)
• 2 screws, #4, longer (209, for plastic pumps)
• 1 detent spring (211)
• 1 air cup base (212)
• 1 air cup (213)
• 1 air cup o-ring (214)
• 1 solenoid release button o-ring (219)
• 1 air valve gasket (108)

Standard or Pulse Count (no runaway protection
solenoid) kits include:
• 2 end caps (207)
• 2 retaining rings (210)
• 2 o-rings (206)
DataTrak (runaway protection solenoid) Kits include:
• 1 standard end cap (207)
• 1 end cap with opening (217)
• 2 retaining rings (210)
• 2 o-rings (206)
• solenoid release button (218)
• o-ring for button (219)

Air Valve
Replacement Kits

Remote Air Control
Conversion Kits

AxxA
A01B
A01C
A01D
A01E
C01A
C01B
C01C
C01D
P01A
P01B
P01C
P01D

Axxx
Cxxx
Pxxx

24B766
24B766
24B767
24D040
24C826
24B775
24B775
24B776
24D042
24B773
24B773
24B774
24D041

Kits include:
• 1 air valve assembly (2)
• 1 air valve gasket (108)
• 4 screws (109; models with aluminum centers)
OR
• 4 nuts (112; models with plastic centers)

313435T

24A361
24D734
24C053
24C053
24A363
24C054
24C054

24D037
24D039
24D038

Kits include:
•
•
•
•
•

1 air valve assembly (2) with restrictor
1 air valve gasket (108)
4 screws (109; models with aluminum centers)
OR
4 nuts (112; models with plastic centers)
2 remote pilot inserts

Pulse Count Kits
Axxx
Cxxx or Pxxx

24B798
24B796

Kit includes:
• reed switch module (220)
• mounting screw

25

Parts

Fluid Covers and Manifolds
Pump Size
and Material

Air Valve and
Center Section

Fluid Covers
and Manifolds

Seats

Check
Balls

Diaphragm

Manifold
O-Rings

1050A

A01A

A1

AL

BN

TP

PT

Sample Configuration Number
12

Fluid Cover Kits
A1, A2
C1, C2
H1, H2
P1, P2
F1, F2
S1, S2

24B653
24C051
24D347
24C050
24C052
24C061

Hastelloy and
Stainless Steel
Outlet Manifold Kits

3

H1
H2
S1
S2

Kits include:
• 1 fluid cover (3)
• 4 o-rings, ptfe (12)

20

12

ti14313a

ti14307a

5

24D345
24D346
24C059
24C060

5

12

ti14314a

Kits include:
• 1 inlet manifold (5)
• 4 o-rings, ptfe (12)

12

24B651
24B652

Kits include:
• 1 inlet manifold (5)
• 3 pipe plugs (8)
• 4 o-rings, ptfe (12)

26

H1
H2
S1
S2

4

Aluminum Inlet
Manifold Kits
A1
A2

Hastelloy and
Stainless Steel
Inlet Manifold Kits

8

24B649
24B650

Kits include:
• 1 outlet manifold (4)
• 3 pipe plugs (8)
12
• 4 o-rings, ptfe (12)
• 1 warning label (20▲)

4

Kits include:
• 1 outlet manifold (4)
• 4 o-rings, ptfe (12)
• 1 warning label (20▲)

Aluminum Outlet
Manifold Kits
A1
A2

24D343
24D344
24C057
24C058

8

ti14308a

313435T

Parts

Kit 24B910, Fluid Pressure Relief Valve
Fuel Dispense Model only

Plastic Outlet
Manifold Kits
C1
C2
P1
P2
F1
F2

24C039
24C042
24C038
24C041
24C040
24C043

Kits include:
• 1 outlet manifold (4)
• 4 o-rings, ptfe (12)
• 1 warning label
(20▲)

Kit includes:
• 1 valve, 3/8 nptf (9)
12

NOTE: See page 31 for manifold o-rings (12).
ti14309a

Manifold Fasteners (Ref. 9)
Manifold Fastener Fastener
Kits
Description
12

4

A1, A2
ti14311a

12

Plastic Inlet
Manifold Kits
C1
C2
P1
P2
F1
F2

4

24C045
24C048
24C044
24C047
24C046
24C049

5

ti14310a

12

Kits include:
• 1 inlet manifold (5)
• 4 o-rings, ptfe (12)

C1, C2
P1, P2,
F1, F2
S1, S2,
H1, H2
with any
center
(Axxx,
Cxxx, or
Pxxx)

BOLT, hex head,
steel, M8 x 25
24C056 BOLT, flange head,
M8 x 32, stainless
steel, includes nuts
24C064 BOLT, hex head, M8
x 20, stainless steel,
includes nuts

A1, A2
ti14312a

▲ Replacement Danger and Warning tags, labels, and
cards are available at no cost.

8
8

8

Fluid Cover Fasteners (Ref. 7)
Fluid Cover
Fastener Kits

5

313435T

24B654

Qty.

Description

24B654 BOLT, hex head,
steel, M8 x 25
24C055 BOLT, flange head,
C1, C2
P1, P2,
M8 x 45, stainless
steel, includes nuts
F1, F2
24C063 BOLT, flange head,
S1, S2,
M8 x 25, stainless
H1, H2
steel
aluminum
center
(Axxx)
24C056 BOLT, flange head,
S1, S2,
M8 x 32, stainless
H1, H2
steel, includes nuts
plastic
center
(Cxxx or
Pxxx)

Qty.
8
8

8

8

27

Parts

Seats and Check Ball
Pump Size
and Material

Air Valve and
Center Section

Fluid Covers
and Manifolds

1050A

A01A

A2

Seats

Check
Balls

Diaphragm

Manifold
O-Rings

TP

PT

AL BN

Sample Configuration Number

Seat Kits
AC
AL
BN (no o-rings)
FK (no o-rings)
GE
PP
PV
SP
SS
TP (no o-rings)

Check Ball Kits
24B630
24B631
24B632
24B638
24B633
24B635
24C721
24B636
24B637
24B634

Kits include:
• 4 seats, material indicated in table (10)
• 8 o-rings, PTFE, included unless table says “no
o-rings” (12)
NOTE: Some kits may not be available for your model.
See the selector tool at www.graco.com or speak with
your distributor.

28

AC
BN
CR
CW
FK
GE
PT
SP
SS
TP

24B639
24B640
24B643
24B644
24B648
24B641
24B645
24B646
24B647
24B642

Kits Include:
• 4 balls, material indicated in table (11)
• 8 o-rings, PTFE (12)
NOTE: Some kits may not be available for your model.
See the selector tool at www.graco.com or speak with
your distributor.

313435T

Parts

Diaphragms
Pump Size
and Material

Air Valve and
Center Section

Fluid Covers
and Manifolds

Seats

Check
Balls

Diaphragm

Manifold
O-Rings

1050A

A01A

A2

AL

BN

TP

PT

Sample Configuration Number
NOTE: Some kits may not be available for your model. See the selector tool at www.graco.com or speak with your
distributor.
.

Standard Diaphragm Kits

Overmolded Diaphragm Kits

BN
FK
GE
SP
TP

CO
PO

24B622
24B629
24B623
24B628
24B624

Kits include:
• 8 o-rings, ptfe (12)
• 2 diaphragms (15, material indicated in table)
• 2 o-rings for the bolt (301, used only on metal
pumps)
• 1 diaphragm install tool (302)
NOTE: Fluid plates (13, 14) and diaphragm shaft bolts
(304) are sold separately. See page 30. The shaft (104)
is part of Kit 24B621, the Center Section Rebuild Kit.

24B625
24B626

Kits include:
• 8 o-rings, ptfe (12)
• 2 overmolded diaphragms (15, material indicated in table)
• 2 diaphragm set screws, stainless steel (303)
• 1 diaphragm install tool (302)
NOTE: Fluid plates (14) are sold separately. See page
30. The shaft (104) is part of Kit 24B621, the Center
Section Rebuild Kit.

104
14
15

104
13
14

301

ti14037a

303

304

15
(Metal pumps)
302
(not to scale)

13

(Plastic pumps)

302
(not to scale)
ti14022a

313435T

29

Parts

Diaphragms (continued)
Pump Size
and Material

Air Valve and
Center Section

Fluid Covers
and Manifolds

Seats

Check
Balls

Diaphragms

Manifold
O-Rings

1050A

A01A

A2

AL

BN

TP

PT

Sample Configuration Number

Two-Piece Diaphragm Kits

Air and Fluid Plate Kits

PT
n/a

1050A
1050C
1050H
1050P
1050F
1050S

24B627
24F926

Kits include:
• 8 o-rings, PTFE (12)
• 2 diaphragms, PTFE (15)
• 2 backup diaphragms (305, material indicated in
table)
• 2 o-rings for the bolt (301, used only on metal
pumps)
• 1 diaphragm install tool (302)
NOTE: Fluid plates (13, 14) and diaphragm shaft bolts
(304) are sold separately. See page 30. The shaft (104)
is part of Kit 24B621, the Center Section Rebuild Kit.
104

14

24C035
24C036
24D342
24C036
24C037
24C062

Kits for aluminum, hastelloy, and stainless steel
pumps include:
• air side diaphragm plate (14)
• fluid side diaphragm plate (13)
• o-ring (301)
• bolt (304)
Kits for polypropylene, conductive polypropylene,
and PVDF pumps include:
• air side diaphragm plate (14)
• fluid side diaphragm plate (13, includes bolt)

305
15
13

Diaphragm Shaft Bolt (Metal Pumps)
301
304

(Metal pumps)
13

(Plastic pumps)

Kit 24C099 includes:
•
•

1 bolt, stainless steel, M12 x 35 (304)
1 o-ring (301)

ti14021a

302
(not to scale)

30

313435T

Parts

Manifold O-Rings
Pump Size
and Material

Air Valve and
Center Section

Fluid Covers
and Manifolds

Seats

Check
Balls

Diaphragm

Manifold
O-Rings

1050A

A01A

A2

AL

BN

TP

PT

Sample Configuration Number

O-Ring Kit
PT
--

Qty.

24B655
Model includes no o-rings

8
0

Kit Includes:
• 8 o-rings, PTFE (12)

DataTrak
NOTE: See DataTrak manual, 313840, for all DataTrak
related part numbers and kit information, including the
reed switch and solenoid.

Accessories
Fluid Pressure Relief Kit 238428
(for aluminum pumps)
Includes pipe bushings, hose adapter, relief valve, and
tubing.
Fluid Pressure Relief Kit 112119
(for plastic pumps)
Includes fluid pressure relief valve.
Wall Mount Kit 24C637
Includes bracket, 4 dampeners, 8 washers, and 8 lock
nuts.

Air Controls Kit 246947
Includes 1/2 npt air filter/regulator with 40 micron element and air pressure gauge.
Standard Pipe Flange Kits
239005 - Polypropylene
239008 - Stainless steel
239009 - PVDF
Each kit includes the pipe flange, a PTFE gasket, bolts,
spring lock washers, flat washers and nuts.
Optional Muffler
Part No. 102656, 3/4 npt, aluminum.

Wall Bracket Dampener Kit 24E769
Includes 4 dampeners.
Rubber Foot Mounting Kit 236452
Includes washers, nuts, and rubber feet.
Grounding Wire Assembly Kit 238909
Includes ground wire and clamp.
Air Controls Kit 246946
Includes 1/4 npt air filter/regulator with 40 micron element and air pressure gauge.

313435T

31

Technical Data

Technical Data
Maximum fluid working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air pressure operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid displacement per cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air consumption at 70 psi (0.48 MPa, 4.8 bar), 20 gpm (76 lpm) . . . . . . . .
Maximum values with water as media under submerged inlet
conditions at ambient temperature:
Maximum air consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum free-flow delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum pump speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum suction lift (varies widely based on ball/seat selection and
wear, operating speed, material properties, and other variables . . . . . . .
Maximum size pumpable solids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended cycle rate for continuous use . . . . . . . . . . . . . . . . . . . . . . .
Recommended cycle rate for circulation systems . . . . . . . . . . . . . . . . . . . .
Sound Power*
at 70 psi (0.48 MPa, 4.8 bar) and 50 cpm . . . . . . . . . . . . . . . . . . . . . . . .
at 100 psi (0.7 MPa, 7.0 bar) and full flow . . . . . . . . . . . . . . . . . . . . . . . .
Sound Pressure**
at 70 psi (0.48 MPa, 4.8 bar) and 50 cpm . . . . . . . . . . . . . . . . . . . . . . . .
at 100 psi (0.7 MPa, 7.0 bar) and full flow . . . . . . . . . . . . . . . . . . . . . . . .
Fluid temperature range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air inlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid inlet size
Aluminum (1050A), Hastelloy (1050H) or Stainless Steel (1050S) . . . . .
Conductive Poly (1050C), Polypropylene (1050P), or PVDF (1050F) . . .
Fluid outlet size
Aluminum (1050A), Hastelloy (1050H) or Stainless Steel (1050S) . . . . .
Conductive Poly (1050C), Polypropylene (1050P), or PVDF (1050F) . . .
Weight
Aluminum (1050A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conductive Polypropylene (1050C) and Polypropylene (1050P) . . . . . . .
Hastelloy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PVDF (1050F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stainless Steel (1050S)
with conductive polypropylene center . . . . . . . . . . . . . . . . . . . . . . .
with polypropylene center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
with aluminum center. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wetted parts include material(s) chosen for seat, ball, and diaphragm
options, plus the pump’s material of construction
1050A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1050H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1050C and 1050P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1050F. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1050S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32

125 psi (0.86 MPa, 8.6 bar)
20-125 psi (0.14-0.86 MPa, 1.4-8.6 bar)
0.17 gal. (0.64 liters)
25 scfm

67 scfm
50 gpm (189 lpm)
280 cpm
16 ft (4.9 m) dry, 29 ft (8.8 m) wet
1/8 in. (3.2 mm)
93 - 140 cpm
20 cpm
78 dBa
90 dBa
84 dBa
96 dBa
see page 33
1/2 npt(f)
1 in. npt(f) or 1 in. bspt
1 in. raised face ANSI/DIN flange
1 in. npt(f) or 1 in. bspt
1 in. raised face ANSI/DIN flange
23 lb. (10.5 kg)
18 lb. (8.2 kg)
41 lb. (18.6 kg)
26 lb (11.8 kg)
36.3 lb. (16.5 kg)
37.3 lb. (16.9 kg)
41.4 lb. (18.8 kg)

Aluminum
Hastelloy
Polypropylene
PVDF
Stainless Steel

313435T

Technical Data

Non-wetted external parts
Aluminum (1050A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . aluminum, coated carbon steel
Hastelloy (1050H). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . hastelloy, stainless steel, polypropylene
or aluminum (if used in center section)
Plastic (1050P, 1050C, and 1050F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . stainless steel, polypropylene
Stainless Steel (1050S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . stainless steel, polypropylene or aluminum (if used in center section)
Reference Information
Maximum Storage Time (varies with conditions) . . . . . . . . . . . . . . . . . . . 2 years
Maximum Lifetime (varies with operating conditions and maintenance) . 10 years
Power Efficiency Factor (varies based on pump configuration,
operating parameters, and material) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.61 gal. air consumed/1 gal. fluid
pumped at 70 psi (1.61 liter air consumed/1 liter fluid pumped at 4.8 bar)
* Sound power measured per ISO-9614-2.
** Sound pressure was tested 3.28 ft (1 m) from equipment.
All trademarks mentioned in this manual are the property of their respective owners.

Fluid Temperature Range
NOTICE
Temperature limits are based on mechanical stress only. Certain chemicals will further limit the fluid operating temperature range. Stay within the temperature range of the most-restricted wetted component. Operating at a fluid
temperature that is too high or too low for the components of your pump may cause equipment damage.

Fluid Temperature Range
Aluminum, Hastelloy, or
Stainless Steel Pumps
Diaphragm/Ball/Seat Material
Acetal (AC)
Buna-N (BN)
FKM Fluoroelastomer (FK)*
Geolast® (GE)
Polychloroprene overmolded
diaphragm (CO) or
Polychloroprene check balls
(CR or CW)
Polypropylene (PP)
PTFE overmolded
diaphragm (PO)
PTFE check balls or two-piece
PTFE/EPDM
diaphragm (PT)
PVDF (PV)
®

Santoprene (SP)
TPE (TP)

Polypropylene or
Conductive
Polypropylene Pumps

PVDF Pumps

Fahrenheit

Celsius

Fahrenheit

Celsius

Fahrenheit

Celsius

10° to 180°F
10° to 180°F
-40° to 275°F
-40° to 150°F

-12° to 82°C
-12° to 82°C
-40° to 135°C
-40° to 66°C

32° to 150°F
32° to 150°F
32° to 150°F
32° to 150°F

0° to 66°C
0° to 66°C
0° to 66°C
0° to 66°C

10° to 180°F
10° to 180°F
10° to 225°F
10° to 150°F

-12° to 82°C
-12° to 82°C
-12° to 107°C
-12° to 66°C

0° to 180°F

-18° to 82°C

32° to 150°F

0° to 66°C

10° to 180°F

-12° to 82°C

32° to 150°F
40° to 180°F

0° to 66°C
4.0° to 82°C

32° to 150°F
40° to 150°F

0° to 66°C
4° to 66°C

32° to 150°F
40° to 180°F

0° to 66°C
4.0° to 82°C

40° to 220°F

4° to 104°C

40° to 150°F

4° to 66°C

40° to 220°F

4° to 104°C

10° to 225°F
-40° to 180°F

-12° to 107°C
-40° to 82°C

32° to 150°F
32° to 150°F

0° to 66°C
0° to 66°C

10° to 225°F
10° to 180°F

-12° to 107°C
-12° to 82°C

-20° to 150°F

-29° to 66°C

32° to 150°F

0° to 66°C

10° to 150°F

-12° to 66°C

* The maximum temperature listed is based on the ATEX standard for T4 temperature classification. If you are
operating in a non-explosive environment, FKM fluoroelastomer’s maximum fluid temperature in aluminum or
stainless steel pumps is 320°F (160°C).

313435T

33

Graco Standard Husky Pump Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty
published by Graco, Graco will, for a period of five years from the date of sale, repair or replace any part of the equipment determined by Graco to
be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within six (6) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.

Graco Information
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505

All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 313435

Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2009, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
www.graco.com
Revision T - November 2014



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Metadata Date                   : 2015:02:25 15:07:57-06:00
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Web Statement                   : 313435, 1050 Air-Operated Diaphragm Pump, Repair/Parts
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Keywords                        : 313435, 313435T, 313435EN-T, 313435EN, MM 313435, 1050 Air-Operated Diaphragm Pump, Repair/Parts
Copyright                       : 2009, Rev. T 11/2014
Marked                          : True
Format                          : application/pdf
Description                     : 313435, 1050 Air-Operated Diaphragm Pump, Repair/Parts
Title                           : 313435T, 1050 Air-Operated Diaphragm Pump, Repair/Parts, English
Creator                         : Shelly Saunders
Subject                         : 313435, 313435T, 313435EN-T, 313435EN, MM 313435, 1050 Air-Operated Diaphragm Pump, Repair/Parts
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Author                          : Shelly Saunders
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