Repair/Parts
Husky™ 15120 Air-Operated
Diaphragm Pump
3A2889A
EN
Polypropylene or PVDF pumps for fluid transfer applications, including high viscosity materials. For
professional use only.
Not for use in European explosive atmosphere locations.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Maximum Working Pressure: 125 psi
(0.86 MPa, 8.6 bar)
PROVEN QUALITY. LEADING TECHNOLOGY.
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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 symbols refer to procedure-specific
risks. When these symbols appear in the body of this manual or on warning labels, refer back to these
Warnings. Product-specific hazard symbols and warnings not covered in this section may appear 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. Do not use pail liners unless
they are antistatic or conductive.
• Stop operation immediately if static sparking occurs or you feel a shock. Do not use
equipment until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
• Route exhaust away from all ignition sources. If diaphragm ruptures, fluid may be exhausted
with air.
Static charge may build up on plastic parts during cleaning and could discharge and ignite
flammable vapors. To help prevent fire and explosion:
• Clean plastic parts only in well ventilated area.
• Do not clean with a dry cloth.
• Do not operate electrostatic guns in equipment work area.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the equipment, leaks, or ruptured components can splash in the eyes or on skin
and cause serious injury.
• Follow the Pressure Relief Procedure when you stop spraying/dispensing 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.
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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 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. Alterations or modifications may void agency approvals
and create safety hazards.
• Make sure all equipment is rated and approved for the environment in which you are using it.
• 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.
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.
PLASTIC PARTS CLEANING SOLVENT HAZARD
Many solvents can degrade plastic parts and cause them to fail, which could cause serious
injury or property damage.
• Use only compatible water-based solvents to clean plastic structural or pressure-containing
parts.
• See Technical Data in this and all other equipment instruction manuals. Read fluid and
solvent manufacturer’s MSDSs and recommendations.
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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 MSDSs to know the specific hazards of the fluids you are using.
• Route exhaust away from work area. If diaphragm ruptures, fluid may be exhausted into
the 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
Wear appropriate protective equipment when in the work area to help prevent serious injury,
including eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective
equipment includes but is not limited to:
• Protective eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent
manufacturer.
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Ordering Information
To Find Your Nearest Distributor
Distributor Note
1. To find part numbers for new pumps or kits, use
2. Click on Where to Buy and use the Distributor
Locator.
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
Online Husky Selector Tool to find the
corresponding 20–digit number.
To Specify the Configuration of a New
Pump
Please call your distributor.
OR
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.
To Order Replacement Parts
Please call your distributor.
3. Please call Graco Customer Service to order.
Related Manuals
Manual
Number
Title
3A2888
Husky 15120 Air-Operated Diaphragm
Pump, Operation
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Configuration Number Matrix
Check the identification plate (ID) for the Configuration Number of your pump. Use the following matrix to
define the components of your pump.
PART NO.
CONFIGURATION NO.
SERIAL NO.
DATE CODE SERIES MAX WPR PSI-bar
MADE IN
Graco Inc., P.O. Box 1441
Mpls, MN 55440 USA
Sample Configuration Number: 15120P-P01AP1PPPTFKPT
15120P P01A
P1
PP PT FK
PT
Pump Model Center
Fluid Covers
and Manifolds
Seats Balls Diaphragms
Manifold and Seat Seals
Section and
Air Valve
Pump
Center Section and Air
Valve Material
For Use With
Diaphragms
Fluid Covers and Manifolds
Polypropylene Standard
Polypropylene, Center Flange,
ANSI/DIN
15120P
P01A
P1
P2
F2
Polypropylene
Polypropylene Overmolded
Diaphragms
Polypropylene, End Flange,
ANSI/DIN
15120F
P01G
PVDF
PVDF, End Flange, ANSI/DIN
Seat Material
Ball Material
Diaphragm Material
Manifold and Seat
Seal Material
Polypropylene
FKM
FKM
PTFE/EPDM Overmolded
PTFE
PP
PV
SP
SS
FK
PT
SP
FK
PO
PT
SP
PT
PVDF
PTFE
Santoprene
Santoprene
PTFE/Santoprene 2–Piece
Santoprene
Stainless
Steel
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Troubleshooting
Problem
Cause
Solution
Pump cycles but will not prime.
Pump is running too fast, causing
cavitation before prime.
Reduce air inlet pressure.
Check valve ball severely worn or
wedged in seat or manifold.
Replace ball and seat.
Seat severely worn.
Replace ball and seat.
Unclog.
Outlet or inlet clogged.
Inlet or outlet valve closed.
Inlet fittings or manifolds loose.
Manifold o-rings damaged.
Open.
Tighten.
Replace o-rings.
Replace.
Pump cycles at stall or fails to hold
pressure at stall.
Worn check valve balls, seats, or
o-rings.
Pump will not cycle, or cycles once
and stops.
Air valve is stuck or dirty.
Disassemble and clean air valve.
Use filtered air.
Check valve ball severely worn and Replace ball and seat.
wedged in seat or manifold.
Pilot valve worn, damaged, or
plugged.
Replace pilot valve.
Air valve gasket damaged.
Dispensing valve clogged.
Clogged suction line.
Replace gasket.
Relieve pressure and clear valve.
Inspect; clear.
Pump operates erratically.
Sticky or leaking check valve balls.
Diaphragm (or backup) ruptured.
Restricted exhaust.
Clean or replace..
Replace.
Remove restriction.
Replace pilot valves.
Replace air valve.
Replace air valve gasket.
Repair air supply.
Use drier air supply.
Pilot valves damaged or worn.
Air valve damaged.
Air valve gasket damaged.
Air supply erratic.
Exhaust muffler icing.
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Problem
Cause
Solution
Tighten.
Replace.
Air bubbles in fluid.
Suction line is loose.
Diaphragm (or backup) ruptured.
Loose manifolds, damaged seats or Tighten manifold bolts or replace
o-rings.
seats or o-rings.
Pump cavitation.
Reduce pump speed or suction lift.
Tighten.
Loose diaphragm shaft bolt.
Diaphragm (or backup) ruptured.
Loose diaphragm shaft bolt.
High inlet air humidity.
Worn air valve cup or plate.
Damaged air valve gasket.
Damaged pilot valve.
Exhaust air contains fluid being
pumped.
Replace.
Tighten or replace.
Use drier air supply.
Replace cup and plate.
Replace gasket.
Moisture in exhaust air.
Pump exhausts excessive air at
stall.
Replace pilot valves.
Replace shaft seals or bearings.
Worn shaft seals or bearings.
Pump leaks air externally.
Air valve or fluid cover screws loose. Tighten.
Diaphragm damaged.
Replace diaphragm.
Replace gasket.
Air valve gasket damaged.
Pump leaks fluid externally from
joints.
Loose manifold screws or fluid cover Tighten manifold screws or fluid
screws.
cover screws.
Manifold o-rings worn out.
Replace o-rings.
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Repair
Pressure Relief Procedure
4. Align the new air valve gasket (105*) on the
center housing, then attach the new air valve.
Follow the Pressure Relief Procedure
whenever you see this symbol.
5. Reconnect the air line to the motor.
This equipment stays pressurized until pressure
is relieved manually. To help prevent serious
injury from pressurized fluid, such as splashing
in the eyes or on skin, follow the Pressure Relief
Procedure when you stop pumping and before you
clean, check, or service the equipment.
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.
Replace Complete Air Valve
Follow these instructions to install Air Valve
Replacement Kit 24B773.
1. Stop the pump. Follow the
2. Disconnect the air line to the motor.
3. Remove nuts (104). Remove the air valve (102)
and gasket (105).
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Replace Seals or Rebuild Air Valve
Follow these instructions to service the air valve with
one of the available repair kits. 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 ‡.
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.
Disassemble the Air Valve
Lips face
down.
1. Perform steps 1-3 under
2. Use a T10 Torx screwdriver to remove two
screws (209). Remove the valve plate (205), cup
assembly (212-214), spring (211), and detent
assembly (203).
Lips face
up.
3. Pull the cup (213) off of the base (212). Remove
the o-ring (214) from the cup.
4. Remove the retaining ring (210) from each end
of the air valve. Use the piston (202) to push
the end cap (207) out of one end. Remove the
u-cup seal (208) from the piston. Pull the piston
out of the end and remove the other u-cup seal
(208). Remove the other end cap (207) and the
end cap o-rings (206).
4. Grease both ends of the piston (202♦) and the
housing bore. Install the piston in the housing
(201), with the flat side toward the cup (213♦).
Be careful not to tear u-cups (208♦†) when
sliding piston into housing.
5. Remove the detent cam (204) from the air valve
housing (201).
5. Grease new o-rings (206♦†‡) and install on the
end caps (207‡). Install the end caps into the
housing.
Reassemble the Air Valve
NOTE: Apply lithium-based grease when instructed
to grease. Order Graco PN 111920.
6. Install a retaining ring (210‡) on each end to hold
end caps in place.
1. Use all parts in the repair kits. Clean other parts
and inspect for damage. Replace as needed.
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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.
Apply lithium-
based grease.
U-cup lips must
face piston.
Apply lithium-
based grease to
contact surface.
Air inlet.
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Check Valve Repair
NOTE: Kits are available for new check valve balls
and seats in a range of materials. See page 27
to order kits in the material(s) desired. O-ring and
fastener kits also are available.
NOTE: To ensure proper seating of the check balls,
always replace the seats when replacing the balls.
Also, replace the o-rings every time the manifold is
removed.
Disassemble the Check Valve
Disconnect all hoses.
2. Remove the pump from its mounting.
3. NOTE: Use hand tools until thread-locking
adhesive patch releases. Use a 17 mm (11/16 in)
socket wrench to remove the manifold fasteners
(5), then remove the manifold (3).
4. Remove the o-rings (9), seats (7), and balls (8).
5. Turn the pump over and remove the inlet
manifold (4).
6. Remove the o-rings (9), seats (7), and balls (8).
Reassemble the Check Valve
1. Clean all parts and inspect for wear or damage.
Replace parts as needed.
2. Reassemble in the reverse order, following all
notes in the illustration. Put the inlet manifold on
first. Be sure the ball checks (7-9) and manifolds
(3, 4) are assembled exactly as shown. The ball
must seat on the chamfered side of the seat.
The arrows (A) on the fluid covers (2) must point
toward the outlet manifold (3).
Figure 1 Check valve assembly
Torque to 190 to 200 in-lb (21 to 25
N·m). Follow torque sequence. See
Arrow (A) must point toward outlet
manifold
The chamfered side of the seat must face
the ball.
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Diaphragm and Center Section Repair
4. All Other Diaphragms
a. Orient the pump so one of the fluid covers
faces up. Use a 17 mm socket wrench to
remove the fluid cover screws (5, 6), then pull
the fluid cover (2) up off the pump. Turn the
pump over and remove the other fluid cover.
NOTE: Diaphragm kits are available in a range of
materials and styles. See pages 28 – 29. 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.
b. Hold the hex of one fluid side diaphragm
plate (15) with a 1–1/2 socket or box end
wrench. Use another wrench (same size)
on the hex of the other plate to remove.
Then remove all parts of each diaphragm
assembly.
Disassemble the Diaphragm and Center
Section
5. Inspect the diaphragm shaft (108) for wear or
scratches. If it is damaged, inspect the bearings
(107) in place. If they are damaged, use a
bearing puller to remove them.
2. Remove the manifolds and disassemble
the ball check valves as explained in
NOTE: You may wish to remove the inner fluid
cover bolts (5) as you remove each manifold, for
convenience.
NOTE: Do not remove undamaged bearings.
6. Use an o-ring pick to remove the u-cup packings
(106) from the center housing. Bearings (107)
can remain in place.
3. Overmolded Diaphragms (PO models)
a. Orient the pump so one of the fluid covers
(2) faces up. Use a 17 mm socket wrench to
remove the fluid cover bolts (5, 6), then pull
the fluid cover up off the pump.
7. If necessary, use a socket wrench to remove the
pilot valves (111).
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 (109), then remove cartridge
o-rings (110). If stripped, use two screwdrivers to
screw out the cartridge.
b. The exposed diaphragm (12) will screw off by
hand. The shaft will either release and come
off with this diaphragm, or remain attached to
the other diaphragm. If the diaphragm shaft
bolt (14) remains attached to the shaft (108),
remove it. Remove the air side diaphragm
plate (11) and washer (17).
NOTE: Do not remove undamaged pilot valve
cartridges.
c. Turn the pump over and remove the other
fluid cover. Remove the diaphragm (and the
shaft, if necessary).
d. If the shaft is still attached to either
diaphragm, grasp the diaphragm firmly and
use a wrench on the flats of the shaft to
remove. Also remove the air side diaphragm
plate (11) and washer (17). Continue with
Step 5.
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Reassemble the Diaphragm and Center Section
Follow all notes in the illustration. These notes
contain important information.
e. Grease the shaft u-cups (106*) and the
length and ends of the diaphragm shaft
(108*). Slide the shaft into the housing.
NOTE: Apply lithium-based grease whenever
instructed to grease.
f. Reattach one fluid cover (3). Arrow (A)
must point toward the air valve. See
1. Clean all parts and inspect for wear or damage.
Replace parts as needed.
g. Repeat Steps b-d for the other diaphragm
assembly and install on the exposed end of
the shaft.
2. If removed, grease and install the new pilot valve
cartridges (109), cartridge o-rings (110), and
retaining rings (113).
h. Tighten by hand as much as possible. Go
to Step 8.
NOTE: Cartridges (109) must be installed before
pilot valves (111).
7. All Other Diaphragms
3. Grease and install the pilot valves (111). Torque
to 20-25 in.-lb (2-3 N•m), at 110 rpm. Do not
over-torque.
a. Assemble the diaphragm (12), the backup
diaphragm (13, if present), the air side
diaphragm plate (11), and the washer (17)
on the fluid side plate (10) exactly as shown.
4. Grease and install the diaphragm shaft u-cup
packings (106) so the lips face out of the housing.
b. Apply primer and medium-strength (blue)
thread locker to the threads of the screw on
the fluid side plate. Screw the assembly into
the shaft hand-tight.
5. If removed, insert the new bearings (107) into
the center housing. Use a press or a block and
rubber mallet to press-fit the bearing so it is flat
with the surface of the center housing.
c. Grease the shaft u-cups (106*) and the
length and ends of the diaphragm shaft
(108*). Slide the shaft into the housing.
6. Overmolded Diaphragms (PO)
a. Clamp the shaft flats in a vise.
d. Repeat for the other diaphragm assembly
and install on the exposed end of the shaft.
b. If diaphragm setscrew comes loose or is
replaced, apply permanent (red) thread
locker to diaphragm side threads. Screw into
diaphragm until tight.
e. Hold one of the plates with a wrench,
and torque the other plate to 65–70 ft-lb
(88–95 N•m) at 100 rpm maximum. Do not
over-torque.
c. Assemble the air side plate (11) and washer
(17) onto the diaphragm. The rounded side
of the plate must face the diaphragm.
f. Reattach one fluid cover (3). Arrow (A)
must point toward the air valve. See
d. Apply primer and medium-strength (blue)
thread locker to the threads of the diaphragm
assembly. Screw the assembly into the shaft
as tight as possible by hand.
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SP and FK Models
PO Models
Rounded side faces diaphragm
Apply lithium based grease.
PT Models
Apply primer and medium-strength (blue) thread
locker. Torque to 65-70 ft-lb (88–95 N•m).
AIR SIDE markings on diaphragm must face
center housing.
If screw comes loose or is replaced, apply
permanent (red) thread locker to diaphragm side
threads. Apply primer and medium-strength (blue)
thread locker to shaft side threads.
Lips must face out of housing.
Cartridges (109) must be installed before pilot
valves (111).
Torque to 20-25 in.-lb (2-3 N•m).
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8. To ensure proper seating and extend diaphragm
life, apply air pressure to the pump prior to
attaching the second fluid cover.
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.
a. Place the supplied tool (302) where the air
valve gasket (105) normally goes. Arrows
(A) must face toward the fluid cover that is
already attached.
d. Attach the second fluid cover (3). See
e. Remove the air valve and the tool (302),
replace the gasket (105), and reattach the air
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.
f. Reassemble the ball check valves
and manifolds as explained in
Figure 2 Fluid cover tool
b. Reattach the air valve.
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Torque Instructions
If fluid cover or manifold fasteners have been
loosened, it is important to torque them using the
following procedure to improve sealing.
Inlet and Outlet Manifold Screws
NOTE: Fluid cover and manifold fasteners have a
thread-locking adhesive patch applied to the threads.
If this patch is excessively worn, the fasteners may
loosen during operation. Replace screws with new
ones or apply medium-strength (blue) Loctite or
equivalent to the threads.
NOTE: Always completely torque fluid covers before
torquing manifolds.
1. Start all fluid cover screws a few turns. Then, turn
down each screw just until head contacts cover.
2. Turn each screw by 1/2 turn or less working in a
crisscross pattern to specified torque.
Air Valve Screws and Pilot Valves
3. Repeat for manifolds.
Fluid cover and manifold fasteners: 190 to 220
in-lb (21 to 25 Nm)
4. Retorque the air valve fasteners in a crisscross
pattern to the specified torque.
Air valve fasteners: 45 to 55 in-lb (5 to 6 Nm)
5. Retorque the pilot valves to the specified torque.
Do not overtorque.
Pilot valves: 20 to 25 in-lb (2 to 3 Nm)
Fluid Cover Screws
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Parts/Kits Quick Reference
Use this table as a quick reference for parts/kits. Go to the pages indicated in the table for a full description of
kit contents.
Ref. Part/Kit
– — —
Description
Qty.
1
Ref. Part/Kit
Description
Qty.
1
Center Section;
Polypropylene, not sold
separately
9
24W212 O-RING, seat; 8–pack, see 1
page 30
10
Fluid Side Diaphragm
Plate; see page 29
2
102 24B773
2
Air Valve; see page 24
1
2
Fluid Cover Kits; see page
26
24W221 Polypropylene
24W222 PVDF
24W210 Polypropylene
24W216 PVDF
11
12
24W231 Air Side Diaphragm Plate;
includes washer (Ref. 17);
see page 29
2
1
3
4
Outlet Manifold Kits; see
page 26
1
1
Diaphragm Kits; 2–pack,
see pages 28 to 29
24W232 Polypropylene, center
flange
24W219 FKM Fluoroelastomer,
1–piece, bolt-through
24W214 Polypropylene, end flange
24W265 PVDF, end flange
24W218 Santoprene , 1–piece,
bolt-through
Inlet Manifold Kits; see
page 26
24W217 PTFE/EPDM Overmolded;
includes screw (Ref. 14)
24W264 Polypropylene, center
flange
24W220 PTFE/Santoprene 2-Piece,
bolt-through; includes
backup diaphragm (Ref.
13)
24W215 Polypropylene, end flange
24W266 PVDF, end flange
- — —
13
14
DIAPHRAGM, backup,
Santoprene
1
5
6
7
24W213
2
2
1
Manifold Fastener Kit; see
page 26
- — —
SCREW, set; included with
PO diaphragms (Ref. 12).
24W211 Fluid Cover Fastener Kit;
see page 26
- — —
- — —
15
16
NUT, included with Ref. 6 16
Seats; 4-pack, see page 27
24W225 Polypropylene
24W223 PVDF
WASHER, included with
Ref. 5 and Ref. 6
40
- — —
17
WASHER, included with
Ref. 11
1
24W226 Santoprene
24W227 Stainless Steel
18
19
188621▲ LABEL, warning
24P932
1
8
BALLS, valve, check;
4–pack; see page 27
1
Muffler; includes o-ring and 1
mounting hardware
24W230 FKM
20
21
16X034▲ TAG, torque instructions
1
1
24W228 PTFE
24W229 Santoprene
198382▲ LABEL, warning,
multilingual
▲ Replacement Warning labels, signs, tags, and
cards are available at no cost.
3A2889A
21
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Center Section
Sample Configuration Number
Pump
Model
Center
Section and
Air Valve
Fluid
Covers and
Manifolds
Seats Balls Diaphragms
Seat and
Manifold
Seal
15120P
P1
PP
PT
FK
PT
P01A
Ref
101
Description
Qty
1
Ref
Description
108* SHAFT, center
109* CARTRIDGE, pilot receiver
110* O-RING, Buna-N
111* VALVE, pilot, assembly
112* LUBRICANT
Qty
1
2
2
2
HOUSING, center, not sold
separately
VALVE, air, see page 24
102
103
1
4
4
1
2
2
SCREW, hi-lo stud
104* NUT, hex, flange, serrated
105* GASKET, air valve
106* U-CUP, center shaft
107* BEARING, shaft
1
2
113* RING, retaining
* Included in Center Section Rebuild Kit.
22
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Sample Configuration Number
Pump
Model
Center
Section and
Air Valve
Fluid
Covers and
Manifolds
Seats Balls Diaphragms
Seat and
Manifold
Seal
15120P
P1
PP
PT
FK
PT
P01A
Center Section Rebuild Kits (*)
Center Shaft Kits (*)
P01A with 2–Piece diaphragms (PT)
or standard diaphragms (SP, FK)
24W206
24W207
P01A with 2–Piece diaphragms (PT)
or standard diaphragms (SP, FK)
24W208
24W209
PO1G with overmolded diaphragms
(PO)
PO1G with overmolded diaphragms
(PO)
Kits include:
Kits include:
• 1 center shaft (108)
• 2 center shaft u-cups (106)
• 1 center shaft (108)
• 2 center shaft bearings (107)
• 1 grease packet (112)
• 4 hex nuts, serrated (104)
• 2 center shaft bearings (107)
• 2 center shaft u-cups (106)
• 1 air valve gasket (105)
• 8 seat o-rings (9)
Center Shaft Bearing Kit
All models
24B658
• 2 pilot valves (111)
• 2 pilot valve receiver cartridges (109)
• 2 retaining rings (113)
• 2 receiver cartridge o-rings (110)
• 1 grease packet (112)
Kit includes:
• 2 center shaft u-cups (106)
• 2 center shaft bearings (107)
• 1 grease packet (112)
Pilot Valve Assembly Kit
All models
24V823
Kit includes:
• 2 pilot valves (111)
• 2 pilot valve receiver cartridges (109)
• 2 receiver cartridge o-rings (110)
• 1 grease packet (112)
• 2 retaining rings (113)
3A2889A
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Air Valve
Sample Configuration Number
Pump
Model
Center
Section and
Air Valve
Fluid
Covers and
Manifolds
Seats Balls Diaphragms
Seat and
Manifold
Seal
15120P
P1
PP
PT
FK
PT
P01A
Ref
201
Description
Qty
1
Ref
Description
U-CUP
SCREW, #4, thread forming
RETAINING RING
SPRING, detent
BASE, cup
Qty
2
2
2
1
1
1
1
HOUSING, not sold
separately
PISTON
PISTON ASSEMBLY, detent
CAM, detent
PLATE, air valve
O-RING
208✦✝
209✦✝
210‡
211✦
212✦
213✦
214✦
202✦
203✦
204✦
205✦
206✦✝‡
207‡
1
1
1
1
2
2
CUP
O-RING, cup
CAP, end
✦ Parts included in Air Valve Repair Kit.
✝ Parts included in Air Valve Seals Kit..
‡ Parts included in Air Valve End Cap Kit.
24
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Sample Configuration Number
Pump
Model
Center
Section and
Air Valve
Fluid
Covers and
Manifolds
Seats Balls Diaphragms
Seat and
Manifold
Seal
15120P
P1
PP
PT
FK
PT
P01A
✝ Air Valve Seals Kit
Air Valve Replacement Kit
All models
All models
24B769
24B773
Kit includes:
Kits include:
• 2 end cap o-rings (206)
• 2 piston u-cups (208)
• 1 air valve assembly (102)
• 1 air valve gasket (105)
• 4 hex nuts (104)
• 2 screws, M3, shorter (not used)
• 2 screws, #4, longer (209)
• 1 air valve gasket (105)
• 1 grease packet (112)
‡ Air Valve End Cap Kit
All models
24C053
• 1 solenoid release button o-ring (not shown), used
only with optional DataTrak kit.
Kit includes:
• 2 end caps (207)
• 2 retaining rings (210)
• 2 o-rings (206)
✦ Air Valve Repair Kit
All models
24B768
• 1 grease packet (112)
Kit includes:
NOTE: If you have the optional DataTrak on your
Replacement kits.
• 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 (not used)
• 2 screws, #4, longer (209)
• 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 (not shown), used
only with optional DataTrak kit.
• 1 air valve gasket (105)
• 1 grease packet (112)
3A2889A
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Fluid Covers and Manifolds
Sample Configuration Number
Pump
Model
Center
Section and
Air Valve
Fluid
Covers and
Manifolds
Seats Balls Diaphragms
Seat and
Manifold
Seal
15120P
P01A
PP
PT
FK
PT
P1
Fluid Cover Kits
Polypropylene
End Inlet Manifold Kits
Polypropylene
PVDF
F2
PVDF
F2
P1,
P2
24W210
24W216
P2
24W215
24W266
Kits include 1 manifold (4)
Fluid Cover Fastener Kits
Kits include 1 fluid cover (2)
All Models
24W211
Center Manifold Kits
(Polypropylene Only)
Kit includes:
P1
Outlet (3)
24W232
Inlet (4)
24W264
• 6 bolts (6), hex head, stainless steel, M10 x 1.5
x 70 mm (2.76 in)
• 4 bolts (5), hex head, stainless steel, M10 x 1.5
x 45 mm (1.77 in.)
• 12 washers (16)
• 6 nuts (15), hex, flange, M10
Kits include 1 manifold
End Outlet Manifold Kits
Manifold Fastener Kits
All Models
24W213
Kit includes:
Polypropylene
P2
24W214
PVDF
F2
• 8 bolts (5), hex head, stainless steel, M10 x 1.5
x 45 mm (1.77 in.)
24W265
• 8 washers (16)
Kits include 1 manifold (3)
26
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Seats and Check Balls
Sample Configuration Number
Pump
Model
Center
Fluid
Seats Balls Diaphragms
FK
Seat and
Manifold
Seal
Section and
Air Valve
Covers and
Manifolds
15120P
P01A
P1
PT
PP
PT
Seat Kits
Ball Kits
FK
PP
SS
SP
PV
24W225
24W227
24W230
24W228
24W229
PT
24W226
24W223
SP
Kits include:
• 4 balls (8), material indicated in table.
Kits include:
• 4 seats (7), material indicated in table.
NOTE: O-rings are sold separately. See Manifold
Seals, page 30.
NOTE: O-rings are sold separately. See Manifold
Seals, page 30.
3A2889A
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Diaphragms
Sample Configuration Number
Pump
Model
Center
Section and
Air Valve
Fluid
Covers and
Manifolds
Seats Balls Diaphragms
Seat and
Manifold
Seal
15120P
P01A
P1
PP
PT
PT
FK
1–Piece Bolt-Through
Diaphragm Kits
Overmolded Diaphragm Kit
PO
24W217
SP
FK
24W218
24W219
Kits include:
• 2 overmolded diaphragms (12), material indicated
in table.
Kits include:
• 2 diaphragms (12), material indicated in table
• 1 diaphragm install tool (302)
• 2 diaphragm set screws, stainless steel (14)
• 1 diaphragm install tool (302)
• 1 packet anaerobic adhesive
• 1 packet anaerobic adhesive
NOTE: Fluid and Air plates are sold separately.
NOTE: Air plates are sold separately. The shaft is
part of the Center Section Rebuild Kit (24W207) or
The shaft is part of the Center Section Rebuild Kit
(24W206) or the Center Shaft Kit (24W208). See
28
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Sample Configuration Number
Pump
Model
Center
Section and
Air Valve
Fluid
Covers and
Manifolds
Seats Balls Diaphragms
Seat and
Manifold
Seal
15120P
P01A
P1
PP
PT
PT
FK
2-Piece Bolt-Through
Diaphragm Kit
Fluid Plate Kits
P1, P2
24W221
24W222
PT
24W220
F2
Kits include:
Kits include:
• 2 diaphragms (12), PTFE
• 1 fluid side diaphragm plate (10), includes shaft bolt
• 1 packet anaerobic adhesive
• 2 backup diaphragms (13), Santoprene
• 1 diaphragm install tool (302)
• 1 packet anaerobic adhesive
Air Plate Kits
All Models
24W231
NOTE: Fluid and Air plates are sold separately.
The shaft is part of the Center Section Rebuild Kit
(24W206) or the Center Shaft Kit (24W208). See
Kits include:
• 1 air side plate (11)
• 1 washer (17)
3A2889A
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Manifold Seals
Sample Configuration Number
Pump
Model
Center
Section and
Air Valve
Fluid
Covers and
Manifolds
Seats Balls Diaphragms
Seat and
Manifold
Seal
15120P
P01A
P1
PP
PT
FK
PT
Manifold O-Ring Kits
All Models
24W212
Kits include:
• 8 o-rings (9), PTFE
30
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Accessories
Muffler 111897
Legacy or remote exhaust muffler option.
NOTE: See DataTrak Manual 313840 for:
• Pulse Count Conversion Kit 24B794
• DataTrak Conversion Kits 24B784
• All other data monitoring parts, including reed
switches and solenoids.
Replacement Air Valve Kit 24B774,
Polypropylene, DataTrak Compatible
Kit includes nuts, valve, and gasket.
3A2889A
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Technical Data
Husky 15120 Diaphragm Pump
US
Metric
Maximum fluid working pressure
Air pressure operating range
Air inlet size
125 psi
0.86 MPa, 8.6 bar
20 to 125 psi
0.14 to 0.86 MPa, 1.4 to 8.6 bar
1/2 in. (npt(f)
1 in.
Air exhaust size
Fluid inlet and outlet size
(ANSI/DIN flange)
1.5 in
38 mm
Maximum suction lift (reduced
if balls don’t seat well due
to damaged balls or seats,
lightweight balls, or extreme speed
of cycling)
Wet: 31 ft
Dry: 16 ft
Wet: 9.4 m
Dry: 4.9 m
Maximum size pumpable solids
1/4 in.
32° F
6.3 mm
0° C
Minimum ambient air temperature
for operation and storage.
NOTE: Exposure to extreme
low temperatures may result in
damage to plastic parts.
Air Consumption
43 scfm at 70 psi, 60 gpm
85 scfm
1.2 m3/min at 0.48 MPa, 4.8
bar, 227 lpm
Maximum Air Consumption
Noise (dBa)
2.4 m3/min
Sound power measured per ISO-9614–2. Sound pressure was tested 3.28 ft (1 m) from equipment.
Sound Power
90.9 at 70 psi and 50 cpm
102.1 at 100 psi and full flow
83.6 at 70 psi and 50 cpm
95.7 at 100 psi and full flow
90.9 at 4.8 bar and 50 cpm
102.1 at 7.0 bar and full flow
83.6 at 4.8 bar and 50 cpm
95.7 at 7.0 bar and full flow
Sound Pressure
Fluid flow per cycle
1–piece bolt-through diaphragms
2–piece bolt-through diaphragms
Overmolded diaphragms
0.63 gallons
0.66 gallons
0.59 gallons
2.4 liters
2.5 liters
2.3 liters
Maximum free-flow delivery
1–piece bolt-through diaphragms
2–piece bolt-through diaphragms
Overmolded diaphragms
122 gpm
120 gpm
115 gpm
462 lpm
454 lpm
435 lpm
32
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Maximum pump speed
1–piece bolt-through diaphragms
2–piece bolt-through diaphragms
Overmolded diaphragms
Weight
192 cycles per minute
183 cycles per minute
195 cycles per minute
Polypropylene
57 lb
74 lb
25.9 kg
33.6 kg
PVDF
Wetted Parts
Wetted parts include material(s) chosen for seat, ball, and diaphragm options, plus the pump’s material of
construction: Polypropylene or PVDF
Non-wetted external parts
stainless steel, polypropylene
Fluid Temperature Range
Diaphragm/Ball/Seat Material
US
Metric
Polypropylene
Pump
PVDF Pump
Polypropylene
PVDF Pump
Pump
FKM Fluoroelastomer
Polypropylene
32° to 150°
32° to 150°
40° to 150°
40° to 150°
32° to 150°
32° to 150°
40° to 150°
32° to 225°
32° to 150°
40° to 180°
40° to 220°
32° to 225°
32° to 180°
40° to 180°
0° to 66°
0° to 66°
4° to 66°
4° to 66°
0° to 66°
0° to 66°
4° to 66°
0° to 107°
0° to 66°
4° to 82°
4° to 104°
0° to 107°
0° to 82°
4° to 82°
PTFE overmolded diaphragm
PTFE check balls
PVDF
Santoprene
2–piece PTFE/Santoprene
diaphragm
3A2889A
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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
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 3A2889
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2014, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
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