Graco 308224H User Manual

Instructions – Parts List

PRESIDENT HYDRA-CATr FIXED RATIO

308224H

Proportioning Pumps

3000 psi (21 MPa, 210 bar) Maximum Working Pressure

Two or Three Displacement Pump Models in Various Mix Ratios,
Pressure Ratios, and Flow Volume

Available as Bare Pumps, or as Wall-Mounted* or Free-Standing
Models

*Includes Mixing Manifolds, Automatic Pressure Relief Valves, Check Valves, Pressure Gauges, and
Regulators.

For models that are certified and approved
see pages 6 and 7.

Read warnings and instructions.

See page 2 for Table of Contents and
page 6 for List of Models.

EN

02884A

Table of Contents

Symbols 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warnings 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

List of Models 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Typical Installation 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation – Optional Fluid Heaters 13. . . . . . . . . . . . . .

Installation – Optional Solvent Pump 15. . . . . . . . . . . . .

Flushing 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shutdown and Care of the System 21. . . . . . . . . . . . . . .

Troubleshooting 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service – Displacement Pump 24. . . . . . . . . . . . . . . . . .

Parts – Bare, Two Pumps 26. . . . . . . . . . . . . . . . . . . . . .

Parts – Bare, Three Pumps 28. . . . . . . . . . . . . . . . . . . . .

Parts – Wall Mount, Two Pumps 30. . . . . . . . . . . . . . . . .

Parts – Wall Mount, Three Pumps 32. . . . . . . . . . . . . . .

Parts – Stand Mount, Two Pumps 34. . . . . . . . . . . . . . .

Parts – Stand Mount, Three Pumps 36. . . . . . . . . . . . . .

Accessories 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting Hole Layout for Air Motor 42. . . . . . . . . . . . . .

Technical Data 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Standard Warranty 44. . . . . . . . . . . . . . . . . . . . . .

Graco Information 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

WARNING

Plural Component Materials Hazard

Graco, Inc. does not manufacture or supply any of the reactive chemical materials that may be used in this equip­ment and is not responsible for their effects. Because of the vast number of chemicals that could be used and
their varying chemical reactions, before using this equipment, the buyer and the user should determine all facts
relating to the materials used, including any of the potential hazards involved. Particular inquiry and investigation
should be made into the potential dangers relating to toxic fumes, fires, explosions, reaction times, and exposure
of human beings to the individual components or their resultant mixtures. Graco assumes no responsibility for
loss, damage, expense, or claims for bodily injury or property damage, direct or consequential, arising from the
use of such chemical components.

3082242

Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.

WARNING

EQUIPMENT MISUSE HAZARD

Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.

D This equipment is for professional use only.

D Read all instruction manuals, tags, and labels before operating the equipment.

D Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.

D Do not alter or modify this equipment. Use genuine Graco parts and accessories.

D Check equipment daily. Repair or replace worn or damaged parts immediately.

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.

D Do not exceed the maximum working pressure stated on the equipment or in the Technical Data

for your equipment. Do not exceed the maximum working pressure of the lowest rated component
in your system.

D Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Tech-

nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.

D Handle hoses carefully. Do not pull on hoses to move equipment.

D Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose

Graco hoses to temperatures above 66_C (150_F) or below –40_C (–40_F).

D Wear hearing protection when operating this equipment.

D Do not move or lift pressurized equipment.

D Comply with all applicable local, state, and national fire, electrical, and safety regulations.

308224 3

WARNING

INJECTION HAZARD

Spray from the valve, leaks or ruptured components can inject fluid into your body and cause ex­tremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can
also cause serious injury.

D Fluid injected into the skin is a serious injury. The injury may look like just a cut, but it is a serious

injury. Get immediate medical attention.

D Do not point the valve at anyone or at any part of the body.

D Do not put your hand or fingers over the valve tip.

D Do not stop or deflect leaks with your hand, body, glove or rag.

D Do not “blow back” fluid; this is not an air spray system.

D Always have the tip guard and the trigger guard on the valve when spraying.

D Be sure the valve trigger safety operates before dispensing.

D Lock the valve trigger safety when you stop dispensing.

D Follow the Pressure Relief Procedure on page 21 if the spray tip clogs and before cleaning,

checking or servicing the equipment.

D Tighten all fluid connections before operating the equipment.

D Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.

Permanently coupled hoses cannot be repaired; replace the entire hose.

MOVING PARTS HAZARD

Moving parts, such as the air motor piston, can pinch or amputate your fingers.

D Keep clear of all moving parts when starting or operating the pump.

D Keep hands and fingers away from the piston during operation and whenever the pump is charged

with air.

D Before checking or servicing the equipment, follow the Pressure Relief Procedure on page 21 to

prevent the equipment from starting unexpectedly.

3082244

WARNING

FIRE AND EXPLOSION HAZARD

Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and re­sult in a fire or explosion and serious injury.

D Ground the equipment and the object being sprayed. Refer to Ground the Pumps on page 10.

D If there is any static sparking or you feel an electric shock while using this equipment, stop spray-

ing immediately. Do not use the equipment until you identify and correct the problem.

D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid

being sprayed.

D Keep the spray area free of debris, including solvent, rags, and gasoline.

D Before operating this equipment, electrically disconnect all equipment in the spray area.

D Before operating this equipment, extinguish all open flames or pilot lights in the spray area.

D Do not smoke in the spray area.

D Do not turn on or off any light switch in the spray area while spraying or while operating if fumes

are present.

D Do not operate a gasoline engine in the spray area.

TOXIC FLUID HAZARD

Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
inhaled, or swallowed.

D Know the specific hazards of the fluid you are using.

D Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,

state and national guidelines.

D Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and

solvent manufacturer.

308224 5

List of Models

Ratio

Pressure and Ratio Ratings for President Pumps

WARNING

To reduce the risk of over pressurizing a component, which can result in an explosion and serious injury, never
operate the system at a working pressure higher than the lowest rated component in the system. All fluid side
components such as dispensing valves, regulators, and hoses must have a working pressure equal to or greater
than the pressure given in Column B for each pump model.

Column A gives the maximum fluid pressure developed at 100 psi (0.7 MPa, 7 bar) of incoming air pressure.
Column B gives the minimum working pressure required for all system components, based on the automatic
relief valve settings. Components included by Graco with the models listed meet or exceed this requirement.

Models with Two Displacement Pumps

A B

Maximum Pump

Model No.

Mix Ratio

1:1 231643** 231593** 231618** 1280 89 1800 124 12.80 1.5 5.7
1:1 231644 1601 112 1800 124 16.01 1.2 4.5
1:1 231645** 231595** 1921 135 2300 159 19.21 1.0 3.8
1:1 231646** 2561 179 2900 200 25.61 0.75 2.8

Bare Wall Stand psi bar psi bar

Fluid Pressure

at 100 psi (7 bar) Air

Minimum

Component

Working Pressure

Normal

Pressure

Ratio

(Fluid to Air)

Nominal Flow

Volume

@ 40 cpm

gpm lpm

** CE approved and certified.

3082246

List of Models

Ratio

Models with Three Displacement Pumps

A B

Maximum Pump

Model No.

Mix Ratio

2:1 231657** 231607** 231632** 1280 88 1800 124 12.80 1.50 88
2:1 231658** 1707 118 1800 124 17.07 1.12 11 8
4:1 231663** 231613** 231638** 1024 71 1150 79 10.24 1.87 71

Bare Wall Stand psi bar psi bar

Fluid Pressure

at 100 psi (7 bar) Air

**CE approved and certified

Minimum

Component

Working Pressure

Normal

Pressure

Ratio

(Fluid to Air)

Nominal Flow

Volume

@ 40 cpm

gpm lpm

308224 7

Typical Installation

About the Typical Installations

These pumps are designed to be part of a Hydra-Cat
dispensing system that will proportion, mix, and
dispense two-component fluids. The typical installa­tions shown below and on page 9 are only guidelines
to setting up a complete proportioning system. For
clarity, various components are shown in the correct
order but may not be shown in exactly the position of
the installed system. For assistance in designing your
system, contact your Graco distributor.

Light Viscosity System
Two Displacement Pumps,
5:1 Ratio Feed Pumps

KEY

A Bleed-type master

air valve
B Air filter
C Air lubricator
D Pump runaway valve
E Pump air regulator
F Feed pump
G Ground wire

H Proportioning pump
J Fluid pressure gauge
K Check valve
L Automatic pressure relief

valve
M Fluid filter
N Mixer manifold

NOTE: When pressure feeding the proportioning
pump, mount fluid pressure gauges (J) at the propor­tioning pump inlets to monitor proper adjustment of the
feed pump pressures. Never exceed 25% of the
Hydra-Cat pump outbound fluid pressure on the feed
supply.

P Fluid drain valve
Q Fluid shutoff valve
R Static mixer
S Dispense valve
T Fluid regulator
U Solvent pump
V Fluid strainer

See note above

1

Connect to drain bottle.

2

See Fig. 5, page 11

* Included with wall or stand models

C

D

E

A

Fig. 1

A

B

G

F

HJ*K*

L*

M

S

N*

P*

R

HARD

RES

K

Q*

Q

T

U

M

HARDENER RESIN

E*

A*

HARD

RES

J*

2

1

V*

Q*

02885

3082248

Typical Installation

About the Typical Installations

These pumps are designed to be part of a Hydra-Cat
dispensing system that will proportion, mix, and
dispense two-component fluids. The typical installa­tions shown below and on page 8 are only guidelines
to setting up a complete proportioning system. For
clarity, various components are shown in the correct
order but may not be shown in exactly the position of
the installed system. For assistance in designing your
system, contact your Graco distributor.

Heavy Viscosity Heated System
Three Displacement Pumps,
10:1 Ratio Feed Pumps

KEY

A Bleed-type master air valve
B Air filter
C Air lubricator
D Pump runaway valve
E Pump air regulator
F Feed pump
G Ground wire
H Proportioning pump

J Fluid pressure gauge
K Check valve
L Automatic pressure

relief valve
M Fluid filter
N Mixer manifold
P Fluid drain valve
Q Fluid shutoff valve

NOTE: When pressure feeding the proportioning
pump, mount fluid pressure gauges (J) at the propor­tioning pump inlets to monitor proper adjustment of the
feed pump pressures. Never exceed 25% of the
Hydra-Cat pump outbound fluid pressure on the feed
supply.

R Static mixer
S Dispense valve
T Fluid regulator
U Solvent pump
V Fluid strainer
W Fluid heater
X Supply manifold

See note above

1

Connect to drain bottle.

2

See Fig. 5, page 11

* Included with wall or stand models

C

D

E
A

Fig. 2

BA

FG

E*

A*

J*

H

L* M

K*

W

S

N*

P*

R

2

Q

Q*

K

2

T

U

M

X

1

J*

V*

Q*

02886

308224 9

Installation

Bare Pumps

Bare pumps are available for those installations which
require a highly customized system. For a safe and
efficient system, Graco recommends that the air and
fluid components supplied with the Wall Mount and
Cart Mount models also be used in customized
systems. Refer to the Parts Drawings on pages 26–37
for part numbers. In addition, the accessories shown in
the Typical Installation drawings and discussed in the
following pages of this manual should be used.

Be sure all accessories are sized properly for the air
and fluid requirements of your system.

Read all instructions in the Installation section for
further details.

NOTES:

1. Models with three displacement pumps always use
the two outer displacement pumps to supply the
resin and the middle displacement pump to supply
the hardener.

1. These pumps always use the two outer displace­ment pumps to supply the resin and the middle
displacement pump to supply the hardener.

2. Label all pumps, hoses, fluid regulators, etc. to
indicate whether they are for the resin side or
hardener side of the system.

For a wall mount, be sure the bracket and wall are
strong enough to support the pump, accessories,
plumbing and stress caused by pump operation.
Locate the bracket about 5 ft (1.5 m) above the floor.

Ground the Pumps

WARNING

FIRE AND EXPLOSION HAZARD

Before operating the pump, ground the
system as explained below. Also read
the section FIRE AND EXPLOSION
HAZARD on page 5.

1. Loosen the grounding lug locknut (BB) and washer
(AA).

2. Insert one end of a 14 ga (1.5 mm@) minimum
ground wire (G) into the slot in lug (CC) and tight­en the locknut securely. See Fig. 3.

3. Connect the other end of the ground wire to a true
earth ground. Order part number 237569 Ground­ing Clamp and wire.

G

Mounting the Pump

Mount the pump to suit your installation. The bare
pump can be mounted on a wall bracket or on a cart.
See the Mounting Hole Layout on page 42. The Presi­dent pump and accessories weigh approximately 65 lb
(30 kg). The pump stand and accessories weigh
approximately 55 lb (25 kg).

Fig. 3

AA

BB

CC

30822410

Installation

Air Control Accessories

Install the accessories in the order shown in Fig. 4.
Mount only the air regulator (E) and a master air valve
(A) at the pump. Mount all other accessories on sepa­rate wall brackets to reduce stress on the pump inlet.
Note that one air filter (B) can serve multiple pumps by
using an air manifold downstream from the air filter.

WARNING

Bleed-type master air valves (A) are required in the
system in the positions shown in the Typical Instal­lation drawings. These valves are used during
system pressure relief to relieve air trapped in the
air line. Trapped air can cause the pump to cycle
unexpectedly and result in serious injury from
moving parts, fluid injection, or fluid splashing.

1. Install a bleed-type master air valve (A) in the
pump air inlet.

2. Install an air regulator and gauge (E) to control
pump outlet pressure.

Automatic Pressure Relief Valves

WARNING

To reduce the risk of component rupture, which
could cause serious injury and property damage,
the appropriate automatic pressure relief valve is
required for each fluid on a plural component
pump.

These valves automatically relieve fluid pressure if
the pump output pressure exceeds the valve’s
preset pressure. Over pressurization may occur if
there is a fluid line clog upstream from the valve or
if any other condition exists that causes one of the
pumps to cavitate and direct all fluid pressure to
the other pump(s).

See the List of Models on page 6 to determine
the preset pressure in your system.

Two drainage bottle kits (38) are included with wall
models (unassembled) and stand mount models
(assembled) to catch the drainage if the automatic
pressure relief valves open.

3. Install a pump runaway valve (D) for each feed
pump to automatically shut off the air to the pump
if the pump accelerates beyond the pre-adjusted
setting. A pump which runs too fast can be seri­ously damaged.

4. Install an air line lubricator (C) for automatic air
motor lubrication.

5. Install an air filter (B) to remove harmful dirt and
moisture from the compressed air supply.

A

B

A

E

G

For the wall mount models, assemble the kit as shown
in Fig. 5 and mount it securely to a wall or bracket.
Use the tie wrap, supplied, to hold the hoses out of the
way, if necessary.

WARNING

Fluid emitted from the automatic pressure drain
valves may be at pressures over 3000 psi (21
MPa, 210 bar). Make sure the drain bottles are
securely fastened to the frame or wall so that they
can handle a sudden spurt of pressurized fluid.

18

38a
38b

Fig. 4

38c

C

D

02887

Fig. 5

38f

38g

38h

02888A

308224 11

Installation

NOTE: If you mount the pump on a wall, turn the

displacement pump inlet assemblies (CC) to face
forward, rather than backwards as shown in Fig. 6.

Connect Fluid Supply Hoses

For Two Displacement Pump Models

1. Connect the resin supply hose (EE) to the 3/4 npt
swivel inlet (37B) for the resin displacement pump.
See Fig. 6.

2. Connect the hardener supply hose (DD) to the
3/4 npt swivel inlet (37A) for the hardener displace­ment pump. See Fig. 6.

For Three Displacement Pump Models

1. Connect the resin supply hose (EE) to the 3/4 npt
swivel inlet (37B) for the resin displacement
pumps. See Fig. 7.

2. Connect the hardener supply hose (DD) to the 3/4
npt swivel inlet (37) for the center (hardener)
displacement pump. See Fig. 7.

DD

EE

37B

RES

HARD

37A

CC

02889

Fig. 6

37B

RES

HARD

RES

EE

Additional System Components

Install and connect the feed pumps, solvent pump,
heaters, etc. Refer to the Typical Installation (Fig. 1–2)
and Accessories on pages 38–39 for parts informa-
tion.

Use a dry air kit or a nitrogen regulator kit to protect
the fluid in the supply containers from moisture that
can crystallize the fluid and cause the ball checks to
malfunction. See Accessories on page 39.

Fig. 7

DD

37A

02890

30822412

Installation – Optional Fluid Heaters

4

All Models

NOTE: For systems requiring one heater for each

fluid, see page 38 to order the heaters and required

201a

201b

201

202

20

plumbing (items 201 to 205).

1. Mount a heater to each side of the mounting
bracket using the three screws (201a) and lock­washers (201b) supplied with each heater. See
Fig. 8.

OUT

IN

203

10

Fig. 8

WARNING

To reduce the risk of serious injury, follow the
Pressure Relief Procedure on page 21 before
installing the heaters.

02891A

RES

2. Connect a swivel union (202) to the outlet of each
heater. See Fig. 8.

3. Connect a swivel union (203) to the inlet of each
heater. See Fig. 8.

For Two Displacement Pump Models

1. Disconnect the existing hardener hose (10B) from
the inlet of the mixer manifold (23). See Fig. 8.
Connect the free end of the hose to the swivel
(203) at the hardener heater inlet. See Fig. 9.

2. Install a new fluid hose (204B) between the
hardener heater outlet (202B) and the hardener
mixer manifold. See Fig. 8–9.

3. Repeat Steps 1 and 2 for the resin pump
(the “A” side).

23 (N)

HARD

Fig. 9

202A

RE
S

OUT

IN

204A

204B

202B

RES HARD

HARD

RES

10B10A

HAR
D

OUT

203B203A

IN

02893

308224 13

Installation – Optional Fluid Heaters

23 (N)

205A

FA

202A

RES

RES HARD

HEATE
R

OUT

IN

Fig. 10

For Three Displacement Pump Models

RES HARD

17A 17B

HARD

RES

RES

HARD
HEATE
R

203B203A

204B

FB

202B

OUT

IN

02894

16A

NOTE: You must provide two hoses (FA, FB in Fig.10)
and fittings to run from the heater outlets to the mixer
manifold inlets.

NOTE: To accommodate two resin fluid hoses, the
mixer manifold (23) must be disconnected from the
bracket and mounted remotely.

1. Loosen the swivel of the unions (17A, 17B) to
remove the elbow (16A, 16B) on each side of the
mixer manifold (23). Turn the unions (17A, 17B) so
the outlet faces up. See Fig. 10 and 11.

2. Connect a new hardener fluid hose (204B)
between the union (17B) and the swivel (203B) at
the heater inlet. See Fig. 10.

3. Install another hardener fluid hose (FB) between
the heater outlet elbow (202B) and the hardener
side of the mixer manifold (23). See Fig. 10.

4. Repeat Steps 1 to 3 for the resin side of the
system (the “A” side).

17A

17B

16B

RES

HARD

(N) 23

02892A

Fig. 11

30822414

Installation – Optional Solvent Pump

NOTE: The optional solvent pump is not offered as a

kit; order parts as needed. The optional parts shown
here are listed on page 39. These instructions assume
that the pump is being mounted to the back of the
stand offered in this manual. The Typical Installations
on pages 8–9 show alternate installations. Adjust
your installation according to your specific needs.

1. Mount the solvent pump bracket (301) on the back
of the stand.

2. Mount the pump (306) to the bracket using the
hardware supplied with the pump.

3. Use the existing proportioning pump air regulator
(5) to supply air to the solvent pump. Remove the
plug from the back of the swivel union (3) and
install the adapter (301). Rotate the regulator
gauge elbow (4) so the gauge is facing the
operator.

305

306

4. Couple the hose (303) and couplings (302).
Connect the hose (303) to the adapter (301).

5. Install the other adapter (301), needle valve (304)
and adapter (305) to the pump inlet.

6. Connect the adapter (307), elbow (308) and fluid
hose (309) to the pump outlet.

7. Install a fluid shutoff valve (311) at the mixer
manifold swivel union (15). This valve is used to
prevent resin or hardener from backing up into the
solvent system, and to isolate the solvent system
for service. Connect the solvent inlet hose (309).

8. Connect the suction hose assembly (312) to the
pump intake.

309

A

303

311

15

A

309

310

308

307

312

B

314

313

301

304

302

316
315

3

4

301
302,
303

B

5

Fig. 12

02902B

308224 15

Flushing

When to Flush the System

D Flush the system before its first use to remove the

light oil which was left in after factory testing.

D Flush the manifold mixer (N), using the solvent

pump, as frequently during the day as necessary to
avoid exceeding the pot life limit of the material
being pumped.

D Flush frequently enough during regular operation to

prevent clogged passages due to material being
overheated or dried out in any part of the system.
Clogged passages in the heater can be very difficult
to clean and can reduce heating efficiency, flow rate
and pressure.

D Flush the entire system when the system is shut

down for a long period of time. Keep in mind that
some moisture may get into the lines, which could
contaminate the hardener, so flush again before
restarting the system.

How to Operate the Mixer Manifold

To open or close the mixer manifold (N) fluid valves
(LL) push the handle (KK) down to open and up to
close. See Fig. 13.

12UP – closed

DOWN – open

1

2

N1

N

P1

Fig. 13

KK

LL

LL

RES

HARD

N2

P2

02895

KEY

A Bleed-type master air valve

A1 Hardener feed pump
A2 Resin feed pump
A3 Proportioning pump
A4 Solvent pump
A5 Feed & Proportioning pump

master air valve

A6 Solvent pump master air valve

A5

A1

E1

E2

E Pump air regulator

E1 Hardener feed pump
E2 Resin feed pump
E3 Proportioning pump
E4 Solvent pump

J Fluid pressure gauge

J1 Proportioning pump intake
J2 Proportioning pump outlet

A2

H Proportioning pump
N Mixer manifold
Q Fluid shutoff valve

Q1 Proportioning pump intake
Q2 Mixer manifold solvent inlet

A6

A3E3

H

Q2

N

HARD

HARD

RES

RES

Fig. 14

J2
J1

Q1

E4

A4

02896

30822416

Flushing

How to Flush the System

WARNING

If your system is equipped with heaters, always
shut off the main power to the heaters before
flushing. Circulate the fluid through the system for
at least 10 minutes to cool the fluid and the heater.
This reduces the risk of serious injury from burns.

NOTE: For the first time flushing, we recommend
using mineral spirits solvent (also called white spirit) to
flush out the oil. Then flush again using a solvent that
is compatible with the fluid you will be dispensing.
However, be sure the mineral spirits solvent is compat­ible with the material you will be pumping. If it is not,
check with your fluid supplier to determine an
appropriate solvent for flushing out the light oil.

For flushing only . . .

NOTE: The proportioning pump is not operated during
flushing. The solvent from the feed pumps will flush the
proportioning pump displacement pumps.

To flush the solvent valves . . .

11. Open the hardener solvent flush valve (N1) on the
mixer manifold (N). See Fig. 13.

a. Be sure the solvent pump air regulator (E4) is

at minimum pressure. See Fig. 14.

b. Open the solvent pump main master air valve

(A6) and then open the pump air valve (A4).
See Fig. 14.

c. Release the dispensing valve safety latch.

Hold the dispensing valve firmly against a
grounded pail and trigger it while slowly
opening the solvent pump air regulator (E4).
Operate the pump slowly until the dispense
line is flushed. Release the dispensing valve
trigger and engage its safety latch. Close the
hardener solvent flush valve (N1).

d. Open the resin solvent flush valve (N2) and

repeat Step c. See Fig. 13.

e. Close the solvent line shutoff valve (Q2). See

Fig. 14.

1. Place each feed pump intake into a separate 5
gallon grounded pail, containing about 3 gallons
(12 liters) of solvent.

To flush or prime . . .

2. Be sure both of the fluid shutoff valves (Q1) are
open. See Fig. 14.

3. Place a container under the drain valves (P1,P2)
of the mixer manifold (N). See Fig. 13.

4. Be sure the feed pump air regulators (E1,E2) are
at minimum pressure. See Fig. 14.

5. Open the main master air valve (A5). See Fig. 14.

6. Open the hardener pump master air valve (A1).
See Fig. 14.

7. Slowly increase the air regulator (E1) setting until
the pump is running slowly.

8. Open the hardener side drain valve (P1). Open the
mixer manifold handle (KK). See Fig. 13.

9. When the hardener lines are flushed, close the
mixer manifold handle and close the drain valve
(P1). Close the air valve (A1). See Fig. 14.

10. Repeat Steps 6 to 9 for the resin feed pump. The
resin sides uses these parts: regulator (E2), air
valve (A2), drain valve (P2).

CAUTION

Always close the solvent line fluid shutoff valve (Q2)
after the flushing procedure has been completed.
This will prevent the other fluids from leaking into the
flushing line.

If this is a first time flush . . .

12. Repeat the flushing procedure using a solvent
compatible with the fluid you are going to
dispense.

When you are done flushing . . .

13. Remove the solvent supply from the feed pumps.
Operate the pumps slowly to push all the solvent
out of the lines, then stop the pumps.

If you are not going to use the system . . .

14. Close all air regulators, master air valves and fluid
shutoff valves. Follow the Pressure Relief Proce-

dure on page 21.

WARNING

Always close the air valve (A4) to the solvent pump
before opening the fluid drain valves (P2) to relieve
system pressure. This will reduce the risk of exces­sive pressure buildup in the opposite component
hose and fittings.

308224 17

WARNING

Operation

Check the Drainage Bottles and Hoses

Handling Plural Component Materials

Be extremely cautious when handling plural com­ponent materials and solvents used with them.
Some are extremely toxic. See the WARNING on
the front cover. Read and follow the coating and
solvent manufacturer’s safety precautions and
warnings, including information regarding protective
clothing, eyewear, and respirators.

When spraying reactive fluids, wear the proper
protective clothing, eye protection, gloves, and
clean air breathing apparatus as prescribed by the
fluid manufacturers recommendations, O.S.H.A.
regulations and as approved by N.O.I.S.H. for the
chemicals being used.

Observe the Pot Life Limit

Flush the mixed fluid out of the mixer, dispensing lines
and equipment before it hardens. Flush the complete
system when necessary to prevent the fluids from
hardening in the equipment and hoses. Check the fluid
manufacturer’s instructions for fluid shelf life, and flush
the entire system before this time is reached. Flush the
system with a compatible solvent as explained on page

17.

WARNING

To reduce the risk of serious injury and property
damage, regularly check and clean the drain hose
and bottle for the automatic pressure relief valve.

If material is allowed to dry in and clog the drain
hose, the automatic pressure relief valve may not
fully release the fluid pressure if it opens or may
cause the drain hose to burst.

Check the drain hose and bottle (38) at the start of
each shift, and whenever there is an imbalance of
material, to see if the automatic pressure drain valve
has released material into the bottles. Clean the hose
and bottle as needed. Regularly check the drain hose
for cuts, leaks, or bulges and replace damaged
components before using the system. See Fig. 16.

38

Fill the Throat Packing Nuts

Keep each displacement pump throat packing nut (JJ)
filled with Graco ISO Pump Oil to help prevent fluid
from drying on the displacement rod and damaging the
pump packings. See Fig. 15.

Verify compatibility of the pump oil with the fluids being
used in the pumps. During operation very small
amounts of this fluid are dragged past the seals and
into the pump.

JJ

Fig. 15

30822418

02897

Fig. 16

02948A

Monitor the Material Supply

CAUTION

Establish a rigid system for monitoring the material
supply to prevent the pumps from running dry. A
sudden lack of material in one pump may cause
many system problems, including air entrapment,
spitting of the fluids, fluid “crossovers”, pump
damage, downtime, and added system stresses.

Never allow the feed pump or solvent pump containers
to run dry. A dry container allows air to be pumped into
the system and causes incorrect proportioning. A dry
pump will quickly accelerate to a high speed, and may
damage itself and the other displacement pump be­cause it causes a pressure rise in the other pump. If a
supply container becomes dry, stop the pump immedi­ately, refill the container, and prime the system. Be
sure to eliminate all the air from the system.

NOTE: The pump runaway valve mentioned on page
11 of the Installation section shuts off the pump if the
pump speed accelerates quickly.

Operation

Startup

WARNING

To reduce the risk of serious bodily injury, including
fluid injection, splashing in the eyes or the skin, and
property damage, never exceed the maximum air
and fluid working pressure of the lowest rated
component in your system. See Equipment Mis-
use Hazard, System Pressure, on page 3.

1. Install full containers of resin and hardener at the
feed pumps.

2. To prime the system, follow Steps 2 to 11 of the
Flushing procedure on page 17.

3. Turn on the heaters, if used, and allow them to
warm up for 10 minutes.

4. Open the feed pump air valves (A1,A2). Adjust the
air regulators (E1,E2) just enough to start the
pumps operating slowly.

5. Open the proportioning pump air valve (A3) and
slowly open the regulator (E3) to start the propor­tioning pump.

6. Open the mixer manifold (N) and trigger the
dispense valve (S).

7. Set the air pressure to the feed pumps at 88 psi
(0.6 MPa, 6 bar) or 25% of proportional pressure
at the fluid outlets, whichever is less. Use the
gauges (J1) to monitor this pressure. Higher
pressures may prevent the proportioning pump
inlet ball checks from setting properly.

8. Set the air pressure to the proportioning pump (H)
to obtain the required fluid pressure. Refer to the
proportioning pump chart on page 6 for the fluid
to air pressure.

9. While triggering the dispensing valve, check the
fluid outlet pressure gauges (J2) and make note of
the pressures indicated. Check the gauges
frequently during operation. These notes will help
to analyze any problems that may occur since a
change in displacement pump performance will be
indicated by a change in pressure gauge
readings.

NOTE: A pressure drop does occur during pump
stroke changeover.

NOTE: Flush the mixer manifold frequently during the
day’s operation. Follow Step 11 on page 17.

KEY

A Bleed-type master

air valve

A1 Hardener feed pump
A2 Resin feed pump
A3 Proportioning pump

E1

A1

E Pump air regulator

E1 Hardener feed pump
E2 Resin feed pump
E3 Proportioning pump

A3

E3

A2

E2

H Proportioning pump
N Mixer manifold
S Dispense valve

H

S

N

Fig. 17

02886

308224 19

Operation

Checking the Mix Ratio

NOTE: Since this is a fixed ratio system, you typically

do not have to check the mix ratio.

If the mixed fluid does not cure or harden properly,
check the ratio of resin to hardener.

1. Flush the mixer manifold; see Step 11 on page 17.

2. Follow the Pressure Relief Procedure on page .

3. Open the mixer manifold (N).

4. Set the operating pressure for the pumps. See
Steps 7 and 8 on page 19.

5. Release the dispensing valve trigger and engage
the safety latch.

6. Close the mixer manifold (N).

7. Open the hardener side drain valve (P2) about
three turns. Open the resin side drain valve (P1)
about 1 turn. This prevents the pressure from
building up on the hardener pump, which would
cause the automatic pressure relief valve to open.

8. Place a grounded metal pail under the drain
valves.

10. While observing the pump outlet gauges (J2),
adjust the resin and hardener drain valves (P1,P2)
until the gauges show your normal operating
pressure.

NOTE: The pressure must be within 20% of the orig­inal spraying pressure to get a usable test.

11. Close the mixer manifold. Put a separate sampling
container under each drain valve.

12. Open the mixer manifold to draw a sufficient
sample.

13. As you close the mixer manifold, check the pump
outlet gauges (J2) again to make sure they are at
your normal operating pressure.

NOTE: If the fluid pressure is not within 20% of the
normal operating pressure, flush the mixer manifold
again and take another sample. If the sample ratio is
incorrect, refer to the Troubleshooting chart on page

22. If the ratio is correct, the problem is with one of the

other system components.

14. Compare the volume of the sampling containers. If
the ratio is not correct, refer to the Troubleshooting
chart on page 22. If the ratio is correct the problem
is one of the other components.

9. Open the mixer manifold.

KK

P2

Fig. 18

30822420

15. Close the drain valves (P1,P2).

J2

N

P1

J2

02898A

Shutdown and Care of the System

Pressure Relief Procedure

WARNING

INJECTION HAZARD

The system pressure must be manually
relieved to prevent the system from

starting or spraying accidentally. Fluid
under high pressure can be injected through the
skin and cause serious injury. To reduce the risk of
an injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you:

D are instructed to relieve the pressure,
D stop spraying,
D check or service any of the system equipment,
D or install or clean the spray tips.

1. Engage the dispensing valve safety latch.

2. Shut off the feed pump and proportioning pump air
regulators and bleed-type master air valves.

3. If the system has heaters, circulate the fluid for at
least 10 minutes to cool the heated fluid and
heater.

4. Disengage the dispensing valve safety latch.

If you suspect that the nozzle or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above, very slowly loosen the
nozzle or hose end coupling and relieve pressure
gradually, then loosen completely. Now clear the
nozzle or hose.

System Shutdown

To shut the system down, shut off the air to all pumps,
trigger the dispensing valve into a grounded metal
waste container. Close the mixer manifold valves.
Flush all the mixed fluid out of the mixer manifold,
hoses and dispensing equipment. See page 17. Then
follow the Pressure Relief Procedure.

Cleaning the Pump Inlet Strainer

If the fluid pressure from the feed pump to the propor­tioning pump cannot be maintained on the propor­tioning pump intake gauge (J), check and clean the
strainer (V).

Care of the Pump Throat Packing Nuts

Keep the throat packing nuts filled with appropriate
lubricant and check the tightness of the packing nut
weekly. See Fig. 19. The packing nut should be tight
enough to prevent leakage; no tighter. Too tight an
adjustment causes the packings to bind or wear pre­maturely and leak. Always follow the Pressure Relief
Procedure before adjusting the packing nut.

5. Hold a metal part of the dispensing valve firmly to
the side of a grounded metal pail, and trigger the
dispensing valve to relieve pressure.

6. Engage the safety latch.

7. Open the mixer manifold drain valves (required in
your system), having a container ready to catch
the drainage. Close the valves immediately.

8. Use the solvent pump to flush the mixer manifold
valves.

JJ

Fig. 19

308224 21

Troubleshooting

WARNING

To reduce the risk of serious bodily injury, always
follow the Pressure Relief Procedure on page 21
whenever you shut off the pump, when checking or
servicing any part of the dispensing system, when
installing, cleaning or changing fluid tips, and
whenever you stop dispensing.

This chart uses the proportioner
gauges to determine pump mal­functions.

Faulty manifold check valves can
mask pump cylinder problems.
Always keep these valves operat­ing properly.

Observe the gauge readings dur­ing the stroke direction indicated
by the bold arrow, and
immediately after closing the
manifold.

TROUBLE AREA:

RESIN PUMP LEAKAGE

1. THROAT PACKING

2. PISTON PACKING

3. PISTON BALL CHECK

WARNING

Never operate the pump with the air motor plate
removed, to reduce the risk of serious bodily injury,
including amputation, from moving parts inside the
air motor housing.

The chart below is specific to the air motor and pump.
Refer to the other instruction manuals with the system
to troubleshoot individual components.

TROUBLE AREA:

HARDENER PUMP LEAKAGE

1. THROAT PACKING

2. PISTON PACKING

3. PISTON BALL CHECK

RESIN
PUMP

FALLING RISING

TROUBLE AREA:

RESIN PUMP LEAKAGE

1. THROAT PACKING

2. FOOT VALVE BALL CHECK

RESIN
PUMP

HARDENER

PUMP

HARDENER

PUMP

RESIN
PUMP

RISING

TROUBLE AREA:

HARDENER PUMP LEAKAGE

1. THROAT PACKING

2. FOOT VALVE BALL CHECK

RESIN
PUMP

HARDENER

PUMP

FALLING

HARDENER

PUMP

FALLING RISING

FALLINGRISING

30822422

Problem Cause Solution

System won’t run or
stops while running.

Troubleshooting

Air pressure or volume too low.
Closed or restricted air line or air valve.

Increase, check air compressor.
Open or clean as required.

System speeds up or
runs erratically.

Pump operates but resin
output pressure drops
during upstroke.*

Pump operates but resin
output pressure drops dur­ing downstroke.

Pump operates but resin
output pressure drops
during both strokes.*

Pump operates but hard­ener output pressure
drops during upstroke.*

Fluid valves closed.
Clogged fluid hose.
Air motor worn or damaged.

Displacement pump stuck.

Fluid containers are empty.**
Air in fluid lines.**
Displacement pump parts worn or dam-

aged.
Dirty, worn or damaged resin pump pis-

ton valve.
Worn or damaged resin pump piston

packings.
Dirty, worn or damaged resin pump n

intake valve.

Dirty, worn or damaged resin pump pis­ton valve.

Fluid supply low.**
Dirty, worn or damaged resin pump in-

take valve.
Worn or damaged hardener pump pis-

ton packings.

Open fluid valves.
Replace fluid hose.
Service air motor. See instructions in

separate manual 306982.
Service pump. See instructions in sep-

arate manual 307944 or 684004.

Check often – keep filled.
Purge, check connections.
Service pump. See instructions in sep-

arate manual 307944 or 684004.
Clean, service pump. See instructions

in separate manual.

Replace.

Clean, service pump. See instructions

in separate manual 307944 or 684004.

Clean, service pump. See instructions
in separate manual 307944 or 684004.

Refill or change container.
Clean, service pump. See instructions

in separate manual 307944 or 684004.

Replace.

Pump operates but hard­ener output pressure
drops during downstroke.*

Pump operates but hard­ener output pressure
drops during both
strokes.

Fluid leaks around fluid
pump packing nut.

Relief valve opens too
soon or won’t close.

* Fluid ratio will be wrong. ** Purge all air out of the system before

Dirty, worn or damaged hardener pump
intake valve.

Dirty, worn or damaged hardener pump
intake valve.

Fluid supply low.**

Loose packing nut or worn throat pack­ings.

Relief valve needs adjusting or is
damaged.

Clean, service pump. See instructions

in separate manual 307944 or 684004.

Clean, service pump. See instructions
in separate manual 307944 or 684004.

Refill or change container.

Tighten, replace.

Adjust, service pump. See instructions

in separate manual 307944 or 684004.

proportioning the fluids.

308224 23

Service – Displacement Pump

Removal and Replacement

Thoroughly flush the system with a solvent which is
compatible to the fluid being pumped, then follow the
Pressure Relief Procedure on page 21. The Flushing
procedure is on page 17.

RES

HARD

Stop the pump at the bottom of its stroke.

CAUTION

If you are changing to a different type of fluid, com­pletely clean all of the equipment and hoses, making
sure that no fluid remains in any part of the system.

Remove the fluid outlet hoses from the displacement
pumps.

1. For Two Displacement Pump Models Only
Unscrew the swivel unions (33) from the bottom of
the displacement pumps. See Fig. 20.

2. For Three Displacement Pump Models Only
Unscrew the swivel union (33) from the bottom of
the center displacement pump. Unscrew the swivel
unions (126) from the outer displacement pumps.
Remove the supply manifold (125) from the outer
pumps. Unscrew the straight union (39) from the
center displacement pump. See Fig. 21.

Fig. 20

41

39

Fig. 21

33

RES

33

125

HARD

RES

126

33

30822424

Service – Displacement Pump

Disassembly

1. Remove the locknuts (113) from the top of the
yoke (114) of the two outer displacement rods. See
Fig. 22. Unscrew the outer locknuts (122) from the
top of the tie plate (123) on the two displacement
pumps. Use a screwdriver and hammer to loosen.

111

115

114

113

1

NOTE: The tie rods (111) shown in Fig. 22 are
removed from the tie plate (121) for clarity only
and do not require removal.

2. Remove the two outer pumps from the tie plate.
Remove the washers (115) from the rods of each
pump.

3. Three Displacement Pump Models Only.
Using a wrench on the flats of the center pump’s
displacement rod, screw the rod out of the yoke
(114). See Detail B in Fig. 22. Remove the pump
from the yoke (114) then the washer (115) from the
rod on the pump.

4. Refer to the appropriate instruction manual for
servicing the displacement pump.

Reassembly

1. Three Displacement Pump Models Only.
Slide the center displacement pump rod through
the tie plate (121), center locknut (123), and wash­er (115). Thread the displacement rod into the
yoke (114) by turning the complete cylinder. Use a
wrench on the flats of the displacement rod for
final tightening. Torque to 53–67 ft-lb
(72–91 NSm)
the tie plate and install the center locknut (123).

. Push the cylinder up into place in

122

123
121

C

Fig. 22

3. Move the air motor to the bottom of its stroke.
Check for movement of the air motor yoke at each
displacement rod. With the rods centered, tighten
the locknuts (113) securely and torque to 53–67 ft­lbs (72–91 NSm).

122

Torque to

1

53–67 ft-lb
(72–91 NSm)

1

DETAIL B

2. All pumps
Slide the outer two displacement pump rods
through the tie plate (121), outer locknuts (122),
and washers (115). Install the locknuts (113)
loosely on the displacement rods. Push the cylin­ders up into place in the tie plate and install the
outer locknuts (122).

4. Tighten the throat packing nut just enough to
prevent leakage, no tighter.

5. Reconnect the swivel unions to the pumps. Hold
the intake valve (C) steady with a wrench to pre­vent from turning.

308224 25

Parts – Bare, Two Pumps

Models 231643–231646

101

113

1

102

114

103

104

3

105
106

107

122

121

111

115

3

108

107

2

109

110

105

112

1

119

120

RES

HARD

116

117

118

4

4

1

Torque to 53–67 ft-lb (72–91 NSm)

Apply anaerobic sealant and torque to 100–200 ft-lb (135–270 NSm)

2

Torque to 14–26 ft-lb (19–35 NSm)

3

Label

4

30822426

02903

Parts – Bare, Two Pumps

Models 231643–231646

Ref.
No. Part No. Description Qty.

101 207352 PRESIDENT AIR MOTOR

see manual 306982 1
102 168418 PLATE, pump adapter 1
103 100018 LOCKWASHER, 1/2 in. 3
104 100017 SCREW, hex cap head,

1/2–13 unc (2a) x 1-1/2 in. 3
105 100101 SCREW, hex cap head,

3/8–16 unc (2a) x 1.0 in. 7
106 178471 PLATE, mounting 1
107 100133 LOCKWASHER; 3/8 in. 7
108 100307 NUT, hex; 3/8–16 unc (2b) 4
109 168453 NUT, shoulder,

1-1/8–18 unef (2b) 1
110 168454 PUMP CONNECTING ROD 1
111 168455 TIE ROD; 8.937 in. (227 mm) long

shoulder to shoulder 4

Ref. No. 119 Ref. No. 120

Model

231643 222012 307944 222012 307944
231644 222015 307944 222015 307944
231645 222017 307944 222017 307944
231646 222019 307944 222019 307944

RESIN
PUMP

See this

manual for

parts

HARDENER

Ref.
No. Part No. Description Qty.

112 101946 PIN, cotter, 0.116 OD x 1–1/2 in. 1
113 101926 LOCKNUT 1/2–20 unf

w/nylon insert 2
114 164414 YOKE, connector tube 1
115 164416 WASHER, flat, 1/2 in. 2
116 101712 LOCKNUT, 5/8–11 unc (2b)

w/nylon insert 4
117 188975 LABEL, resin 1
118 188974 LABEL, hardener 1
119 see table RESIN DISPLACEMENT PUMP 1
120 see table HARDENER DISPLACEMENT

PUMP 1
121 164413 TIE PLATE 1
122 164417 LOCKNUT, outer 2

See this

PUMP

manual for

parts

308224 27

Parts – Bare, Three Pumps

Models 231657, 231658, and 231663

101

102

113

1

103

104

3

105
106

107

108

107

2

109

110

105

112

1

122
123

122

121

114

111

115

116

3

117

4

118

RES

4

117

124

120

HARD

RES

125

Torque to 53–67 ft-lb (72–91 NSm)

1

Apply anaerobic sealant and torque to

2

100–200 ft-lb (135–270 NSm)

Torque to 14–26 ft-lb (19–35 NSm)

3

Label

4

Apply stainless steel pipe sealant to all

5

threaded connections.

30822428

119

126

124

5

02904

Parts – Bare, Three Pumps

Models 231657, 231658, and 231663

Ref.
No. Part No. Description Qty.

101 207352 PRESIDENT AIR MOTOR

see manual 306982 1
102 168418 PLATE, pump adapter 1
103 100018 LOCKWASHER, 1/2 in. 3
104 100017 SCREW, hex cap head,

1/2–13 unc (2a) x 1-1/2 in. 3
105 100101 SCREW, hex cap head,

3/8–16 unc (2a) x 1.0 7
106 178471 PLATE, mounting 1
107 100133 LOCKWASHER; 3/8 in. 7
108 100307 NUT, hex; 3/8–16 unc (2b) 4
109 168453 NUT, shoulder,

1-1/8–18 unef (2b) 1
110 168454 PUMP CONNECTING ROD 1
111 168455 TIE ROD; 8.937 in. (227 mm) long

shoulder to shoulder 4
112 101946 PIN, cotter, 0.116 OD x 1–1/2 in. 1
113 101926 LOCKNUT; 1/2–20 unf

w/nylon insert 2

Ref. No. 119 Ref. No. 120

MODEL

231657 222017 307944 222017 307944
231658 222019 307944 222019 307944
231663 222012 307944 222019 307944

RESIN

PUMP Qty 2

See this
manual for
parts

HARDENER

PUMP

Ref.
No. Part No. Description Qty.

114 164414 YOKE, connector tube 1
115 164416 WASHER, flat, 1/2 in. 3
116 101712 LOCKNUT, 5/8–11 unc (2b)

w/nylon insert 4
117 188975 LABEL, resin 1
118 188974 LABEL, hardener 1
119 see table RESIN DISPLACEMENT PUMP 2
120 see table HARDENER DISPLACEMENT

PUMP 1
121 164413 TIE PLATE 1
122 164417 OUTER LOCKNUT 2
123 164417 CENTER LOCKNUT 1
124 100345 PLUG, pipe, 11–1/2 npt(f) 2
125 208334 SUPPLY MANIFOLD 1
126 156589 SWIVEL UNION, 90_,

3/4 npt (m x f) 2

See this
manual for
parts

308224 29

Parts – Wall Mount, Two Pumps

Models 231593 and 231595

Apply stainless steel pipe sealant

1

to all threaded connections except at swivels.

Included with bare pump

2

3

2

1

4

5

6

11,12

15

13
14

16

2

10

7

8

9

2

1

18

1

17

22

1

21

20

19

38

1

37

11,

23

28
29

1

24

25

13

1

1

26

1

27

30

31

1

36

35

1

34

37

1

33

1

32

02905A

30822430

Parts – Wall Mount, Two Pumps

Models 231593 and 231595

Ref.
No. Part No. Description Qty.

1 see table BARE PROPORTIONAL PUMP

see parts on page 27 1

2 100960 PRESSURE GAUGE, 0–2000 psi

(14 MPa, 140 bar) 1

3 161262 SWIVEL UNION, 90_,

1/4–18 npt (f) x 1/2 npt 1
4 100840 ELBOW, street, 1/4–18 npt (m x f) 1
5 206197 AIR REGULATOR, 300 psi

(2.1 MPa, 21 bar) 1
6 113269 SHUTOFF VALVE, 1/2 npt (m x f) 1
7 158491 NIPPLE, 1/2 npt short 1
8 157416 SWIVEL UNION, 90_, 1/2 npt

(m x f) 1
9 159239 NIPPLE, pipe, reducing

1/2–14 npt x 3/8–18 npt (f) 1
10 236061 BRACKET, mounting 1
11 188596 MANIFOLD BLOCK 3
12 188975 LABEL, resin 1
13 102814 PRESSURE GAUGE,

used for hardener and resin 1
14 217378 HOSE, nylon, w/spring guards,

cpld 3/8–18 npt (mbe) x 30 in.,

3/8 in. ID 1
15 157676 SWIVEL UNION, 90_, 1/4–18 npt

(m x f) 1
16 155699 ELBOW, street, 3/8–18 npt (m x f),

carbon steel 2
17 161037 90_ SWIVEL,

1/2 npte x 3/8 npsmi 2
18 see table PRESSURE RELIEF VALVE 2
19 159239 NIPPLE, 1/2 x 3/8 npte 2
20 111591 WASHER, flat, 1/4 in. 4
21 100016 LOCKWASHER, 1/4 in. 4
22 100021 SCREW, hex cap head,

1/4–20 unc (2a) x 1 in. 4
23 215626 MIXER MANIFOLD

See manual 307400 1
24 156823 SWIVEL UNION, 1/4 npt(m) x

1/4 npt(f) 2

Ref.
No. Part No. Description Qty.

25 108233 NEEDLE (DRAIN) VALVE 2
26 164259 ELBOW, street, 3/8–18 npt (m)

1/4–18 npt (f) 2

27 235905 HOSE, cpld, 3/8–18 npt x

30 in. mbe, 0.318 ID, PTFE 1
28 188974 LABEL, hardener 1
29 101748 PLUG, pipe, 3/8–18 npt(f), sst 2
30 206962 CHECK VALVE, 3/8 npt (mbe) 2
31 100483 TEE, pipe, 3/8–18 npt (f) 2
32 105770 FLUID PRESSURE GAUGE,

0–1000 psi (6.9 MPa, 69 bar)

1/4 npt 2
33 16X233 ELBOW, street, 90_,

1/4–18 npt(f) x 3/4–14 npt (m x f) 1
34 101078 FLUID STRAINER, 3/4 npt

Includes item 34a 2
34a 187758 . GASKET, PTFE
35 160032 NIPPLE, 3/4 npt 2
36 102735 BALL VALVE, 3/4–14 npt (f) 2
37 157785 SWIVEL UNION, 3/4 nps (f) x

3/4 npt (m) 3
38 236249 DRAIN KIT ASSEMBLY

see parts on page 37 2
39 237569 GROUND WIRE AND CLAMP;

not shown 1

Ref. No. 1 Ref. No. 18

MODEL

231593 231643 237112
231595 231645 237062

* Pressure Gauge Descriptions

105770 0–1000 psi (6.9 MPa, 69 bar) 1/4–18 npt
102814 0–5000 psi (31 MPa, 310 bar) 1/4–18 npt

Bare Pump Pressure

Relief Valve

308224 31

Parts – Wall Mount, Three Pumps

Models 231607 and 231613

Apply stainless steel pipe sealant

1

to all threaded connections ex­cept at swivels

Included with bare pump

2

3

11,12

13

14

1

16
15

19

17

1

5

2

4

9

2

6

7

10

8

2

18

1

1

20

22

21

42

24

25

1

38

23

30

11,
28

29

30

1

1

41
40

26
37

1

1

31

1

26

39

36

1

27

37

35

1

34

1

33

1

41

02906A

30822432

Parts – Wall Mount, Three Pumps

Models 231607 and 231613

Ref.
No. Part No. Description Qty.

1 see table BARE PROPORTIONAL PUMP

see parts on page 29 1

2 100960 PRESSURE GAUGE, 0–2000 psi

(14 MPa, 140 bar) 1

3 161262 SWIVEL UNION, 90_,

1/4–18 npt(f) x 1/2 npt 1
4 100840 ELBOW, street, 1/4–18 npt (m x f) 1
5 206197 AIR REGULATOR, 300 psi

(2.1 MPa, 21 bar) 1
6 107142 SHUTOFF VALVE, 1/2 npt (m x f) 1
7 158491 NIPPLE, 1/2 npt short 1
8 157416 SWIVEL UNION, 90_, 1/2 npt

(m x f) 1
9 159239 NIPPLE, pipe, reducing

1/2–14 npt x 3/8–18 npt (f) 1
10 236061 BRACKET, mounting 1
11 188596 MANIFOLD BLOCK 3
12 188975 LABEL, resin 1
13 see table PRESSURE GAUGE,

used for hardener and resin 3
14 217378 HOSE, nylon, w/spring guards;

cpld 3/8–18 npt(mbe) x 30 in.;

3/8 in. ID 2
15 157676 SWIVEL UNION; 90_;

1/4–18 npt(m x f) 1
16 155699 ELBOW, street; 3/8–18 npt(m x f);

carbon steel 2
17 161037 SWIVEL; 90_;

1/2 npte x 3/8 npsmi 2
18 see table PRESSURE RELIEF VALVE 2
19 166469 NIPPLE; 3/4 hex; 3/8–18 npt(mbe);

sst 1
20 111591 WASHER, flat; 1/4 in. 6
21 100016 LOCKWASHER; 1/4 in. 6
22 100021 SCREW, hex cap head,

1/4–20 unc (2a) x 1 in. 6
23 215626 MIXER MANIFOLD

See manual 307400 1
24 156823 SWIVEL UNION, 1/4 npt(m) x

1/4 npt(f) 2

Ref.
No. Part No. Description Qty.

25 108233 NEEDLE (DRAIN) VALVE 2
26 164259 ELBOW, street, 3/8–18 npt (f)

1/4–18 npt (f) 2

27 235905 HOSE, cpld, 3/8–18 npt x

30 in. mbe, 0.318 ID, PTFE 1
28 188974 LABEL, hardener 1
29 101748 PLUG, pipe, 3/8–18 npt(f), sst 2
30 206962 CHECK VALVE, 3/8 npt (mbe) 2
31 100483 TEE, pipe, 3/8–18 npt (f) 2
33 16X233 ELBOW, street, 90_,

1/4–18 npt(f) x 3/4–14 npt (m x f) 1
34 101078 FLUID STRAINER, 3/4 npt

Includes item 34a 2
34a 187758 . GASKET, PTFE
35 160032 NIPPLE, 3/4 npt 2
36 102735 BALL VALVE, 3/4–14 npt (f) 2
37 157785 SWIVEL UNION, 3/4 nps (f) x

3/4 npt (m) 3
38 236249 DRAIN KIT ASSEMBLY

see parts on page 37 2
39 188597 ADAPTER; 3/4–14 npt(f) x

3/4–14 npsm 1
40 101742 BUSHING; 3/8 npt x 1 in. 1
41 105770 PRESSURE GAUGE; 0–1000 psi

(6.9 MPa, 69 bar); 1/4–18 npt 2
42 159239 NIPPLE; 1/2 x 3/8 npte 2

Ref. No. 1 Ref. No. 13 Ref. No. 18

Model

231607 231657 102814 237112
231613 231663 105770 237061

* Pressure Gauge Descriptions

105770 0–1000 psi (6.9 MPa, 69 bar) 1/4–18 npt
102814 0–5000 psi (31 MPa, 310 bar) 1/4–18 npt

Bare Pump Pressure

Gauge*

Pressure

Relief
Valve

308224 33

Parts – Stand Mount, Two Pumps

Model 231618

Apply anaerobic sealant and torque to

1

50

51

1

10–15 ft-lb (14–20 NSm)

2

See parts on pages 36 and 37

53

1

52

38j

2

54

51

50

55

02907A

30822434

Parts – Stand Mount, Two Pumps

Models 231618

Ref.
No. Part No. Description Qty.

1 231593 WALL MOUNT PUMP

see parts on page 31 1

50 100321 NUT, hex, 1/2–13 unc 6
51 100018 LOCKWASHER, 1/2 in. 6

52 217297 LEG, frame 2
53 100679 SCREW, hex cap head,

1/2–13 unc (2a) x 3–1/2 in. 6
54 178473 BRACE, frame 1
55 168422 CAP, square tube 6

308224 35

Parts– Stand Mount, Three Pumps

Models 231632 and 231638

Apply anaerobic sealant and torque to

1

1

10–15 ft-lb (14–20 NSm)

38j

50

51

52

38e

53

1

38a

38b

38c

38d

1

53

54

38f

38g

38h

51

50

55

02908A

30822436

Parts – Stand Mount, Three Pumps

Models 231632 and 231638

Ref.
No. Part No. Description Qty.

1 see table WALL MOUNT PUMP

see parts on page 33 1

50 100321 NUT, hex, 1/2–13 unc 6
51 100018 LOCKWASHER, 1/2 in. 6
52 217297 LEG, frame 2
53 100679 SCREW, hex cap head,

1/2–13 unc (2a) x 3-1/2 in. 6
54 178473 BRACE, frame 1
55 168422 CAP, square tube 6

Ref. No. 1

Model

231632 231607
231638 231613

Wall

Pump

Ref No. 38
Drain Valve Kit

Supplied with the Wall Mount units and Stand Mount
units

Ref.
No. Part No. Description Qty.

38a 190738 . TUBE, nylon, 36 in. x 1/2 in. OD 1
38b 112279 . BOTTLE 1
38c 236272 . HOLDER, bottle 1
38d 100022 . SCREW, hex cap head,

1/4–20 unc (2a) 1
38e 112278 . TIE WRAP 1
38f 100016 . LOCKWASHER, 1/4 in. 1
38g 111591 . WASHER, flat, 1/4 in. 1
38h 100015 . NUT HEX, 1/4–20 unc (2b) 1
38j 113187 . CONNECTOR, female, tube 1

308224 37

Accessories

Parts for Installing Optional Heaters

The following components are recommended to install
the heaters as instructed on page 13. Two displace­ment pump models need Items 201 to 204. Three
displacement pump models need Items 201 to 205 and
an additional resin and hardener hose of an
appropriate length.

Ref.
No. Part No. Description Qty.

201 — FLUID HEATER;

select from list to the right 2

202 155494 SWIVEL UNION, 90_, 3/8–18 npt

(m x f) 2

203 161037 SWIVEL UNION, 90_, 1/2 npt(f) x

3/8–18 nps(m) 2

204 235905 HOSE, cpld; hardener, 3/8–18 npt

x 30 in. mbe 0.318 ID PTFE 1

205 217378 HOSE, nylon, w/spring guards;

resin, cpld 3/8–18 npt x 30 in. (mbe)

3/8 in. ID 1

Viscon HP Fluid Heaters

Style A

Model 245848, 120 Volt, Stainless Steel

4000 psi (28 MPa, 276 bar) Maximum Working Pressure
85_ – 220_ F (29_ – 104_ C) Temperature Range

Model 245863, 240 Volt, Stainless Steel

4000 psi (28 MPa, 276 bar) Maximum Working Pressure
85_ – 220_ F (29_ – 104_ C) Temperature Range

Model 245864, 480 Volt, Stainless Steel

4000 psi (28 MPa, 276 bar) Maximum Working Pressure
85_ – 220_ F (29_ – 104_ C) Temperature Range

205

201a

201b

201

203

202

02891

204

Style B

Model 226819, 240 Volt Aluminum and Zinc

3000 psi (21 MPa, 210 bar) Maximum Working Pressure
80_ – 190_ F (26_ – 88_ C) Temperature Range

Style A
Model 245848 shown

Style B
Model 226819 shown

30822438

Accessories

Parts for Installing Optional Solvent Pump

Ref.
No. Part No. Description Qty.

301 151519 NIPPLE, reducing, 1/4–19 nptm x

1/8–27 nptm 2

302 111913 COUPLING, hose, 1/4–18 npsm,

w/spring guard, stainless steel 2
303 061132 HOSE, nylon 1/4 in. ID x 36 in. long 1
304 206264 VALVE, needle, 1/4–18 npt (m) 1
305 158841 ADAPTER, 1/4–18 unc (f) x

3/8–18 npt (m), carbon steel 1
306 217523 10:1 RATIO MONARK PUMP

for heavy viscosity system 1
OR 208470 5;1 RATIO MONARK PUMP

for light viscosity system 1
307 157350 ADAPTER, 3/8–18 npt x 1/4–18 npt

(mbe) 1
308 155541 SWIVEL UNION, 90_, 1/4 npt (f x m) 1
309 as needed FLUID HOSE
310 207365 BRACKET, mounting 1
311 241037 BALL VALVE 1
312 207484 SUCTION TUBE ASSEMBLY, 3/4 npt 1
313 100101 SCREW, hex cap head,

3/8–16 unc (2a) x 1 in. 4
314 100133 LOCK WASHER, 3/8 in. 4
315 100307 NUT, hex, 3/8–16 unc (2b) 4
316 100132 WASHER, flat, 7/16 in. 4

308

309
310

306

307

312

B

305

314

313

302,303

A

301

304

A

Ref
5

301

316
315

311

B

Miscellaneous Accessories

Nitrogen Regulator Kit, 207638

Maintains a nitrogen head on the supply drum to
protect materials from moisture. Kit includes two 6 ft x
1/4 in. (1.8 m x 6 mm ) hoses, control box with gauge,
regulator, and relief valve.
Inlet: 1/4 in. npt(m). Outlet: 3/4: npt (m).

Graco Throat Seal Liquid

Non-evaporating liquid for wet-cup

206995 0.95 liter (1 quart)
206996 3.8 liter (1 gallon)

02902B

ISO Pump Oil

A highly refined, special purpose throat seal lubricant
the minimal reaction with Isocyanates.

217374 16 oz (0.13 liter) container
218656 4 gallon (18.14 liter) container

308224 39

Accessories

Air Control Accessories

Bleed-Type Master Air Valve

300 psi (2.1 MPa, 21 bar) Maximum Working Pressure

Relieves air trapped in the air line between the pump
air inlet and this valve when closed.

107141

3/4 npt(m) inlet x 3/4 npt(f) outlet

107142

1/2 npt(m) inlet x 1/2 npt(f) outlet

Air Line Filter 106149

250 psi (1.8 MPa, 17.5 bar) Maximum Working Pressure

Filters harmful dirt and moisture from
the compressed air supply. 1/2 npt(f)
inlet and outlet.
See instruction manual 308169.

Air Line Lubricator 214848

250 psi (1.8 MPa, 17.5 bar) Maximum Working Pressure

Provides automatic lubrication for the air motor.

0.48 liter (16 oz) bowl capacity.
1/2 npt(f) inlet and outlet.
See instruction manual 308169.

Fluid Control Accessories

Fluid Filter

5000 psi (35 MPa, 350 bar) Maximum Working Pressure

60 mesh (250 micron) screen.

Model 218029

Carbon steel bowl and support

Model 223160

Stainless steel bowl
and polyethylene support

Fluid Shutoff Valve

5000 psi (35 MPa, 350 bar) Maximum Working Pressure

Model 235992

stainless steel with PTFE seals
1/4 x 3/8 nps (mbe)

Model 223960

carbon steel with PTFE seals
3/8 npt (mbe)

Model 214037

carbon steel with PTFE seals
1/4 npt (mbe)

Pump Runaway Valve 224040

120 psi (0.8 MPa, 8.4 bar) Maximum Working Pressure

Shuts off air supply to the pump if the pump
accelerates beyond the pre-adjusted setting
due to an empty supply container,
interrupted fluid supply to the pump,
or excessive cavitation.
3/4 npt(f) inlet and outlet.
Includes optional 90_,
3/4 npsm swivel outlet fitting.
See instruction manual 308201.

Air Regulator 206197

300 psi (2.1 MPa, 21 bar) Maximum Working
Pressure

Controls air pressure to feed, solvent,
or proportioning pumps. 1/2 npt inlets
and outlets, with (2) 1/4 npt pressure
gauge outlets.

30822440

Static Mixing Units

3000 psi (21 MPa, 210 bar) Maximum Working Pressure

These units consist of a tube with helical interior
elements which thoroughly blend base and catalyst
materials into the proper mix.

Model 500639

14 in. (356 mm) long, 5/16 in. (8 mm) ID, 27 Elements
3/8 npt order fittings separately

Model 500586

25 in. (635 mm) long, 0.44 in. (11 mm) ID, 32
Elements
1/2 npt order fittings separately

Model 502028

29 in. (736 mm) long, 0.8 in. (20 mm) ID, 24 Elements
3/4 npt

Model 945917

25 in. (635 mm) long, 2–1/2 in. (64 mm) OD, 10
Elements
1 in. npt (m x f)

Notes

308224 41

Dimensions Mounting Hole

Layout for Air Motor

7

3

1

2

3

2

2

3

6

3 4

2

1

0288
4A

5

4

0.438 in. (11.12 mm) diameter

1

2

3.712 in. (92.28 mm)

7.424 in. (188.66 mm)

3

4

9.75 in. (247.65 mm) diameter

1

14–3/4 in. (375 mm)

32–3/4 in. (832 mm)

2

28–1/4 in. (718 mm)

3

17–3/4 in. (451 mm)

4

30822442

5

30–1/4 in. (768 mm)

11 in. (279 mm)

6

12–1/2 in. (318 mm)

7

Pumps

Technical Data

Air operating range
Air consumption See example below
Fluid inlet size 3/4 npt
Fluid outlet size 3/8 npt
Air inlet size 3/4 npt
Maximum fluid outlet pressure 3000 psi (21 MPa, 210 bar)
Maximum fluid inlet pressure 250 psi (1.7 MPa, 17 bar)
Wetted parts Stainless steel, Tungsten Carbide, Chrome plating,

Carbon steel, PTFE, Ultra-high molecular weight

Air Consumption Example:

When the air pressure to the pump is 60 psi (0.4 MPa, 4 bar) and you are dispensing 1 gal. (3.8 liter) of mixed fluid
per minute, air volume used, in cfm, will be about the same as the larger pressure ratio figure of your pump. See
page 4 for pressure ratios of pumps.

Manifold assemblies

Manifold outlets 3/8 npt
Hoses

4000 psi (28 MPa, 276 bar) maximum working pressure

3000 psi (21 MPa, 210 bar) maximum working pressure

Automatic pressure relief valves wetted parts 303 stainless steel,Tungsten carbide, fluoroelastomer

40–100 psi (0.3–0.7 MPa, 3–7 bar)

polyethylene

3/8 in. ID, PTFE, cpld 3/8 npt(m)

3/8 in. ID, Nylon, cpld 3/8 npt(m)

Sound

Sound pressure levels (dBa)
(Input air pressures at 15 cycles/min.)

Sound power levels (dBa)
(Input air pressures at 15 cycles/min.)

Tested in accordance with ISO 9614–2.

73.6 dB(A) at 40 psi (0.3 MPa, 2.8 bar)

78.3 dB(A) at 70 psi (0.5 MPa, 4.8 bar)

80.9 dB(A) at 100 psi (0.7 MPa, 7 bar)

87.4 dB(A) at 40 psi (0.3 MPa, 2.8 bar)

92.1 dB(A) at 70 psi (0.5 MPa, 4.8 bar)

94.6 dB(A) at 100 psi (0.7 MPa, 7 bar)

308224 43

Graco Standard Warranty

Graco warrants all equipment 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 twelve months 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 two (2) 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 procedures concernées.

Graco Information

For the latest information about Graco products, visit www.graco.com.

TO PLACE AN ORDER, contact your Graco distributor, or call one of the following numbers

to identify the distributor closest to you:

1–800–328–0211 Toll Free

612–623–6921

612–378–3505 Fax

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.

For patent information, see www.graco.com/patents.

Original instructions. This manual contains English. MM 308224

International Offices: Belgium, China, Japan, Korea

GRACO INC. AND SUBSIDIARIES S P.O. BOX 1441 S MINNEAPOLIS MN 55440–1441 S USA

Copyright 1994, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.

Graco Headquarters: Minneapolis

www.graco.com

Revised December 2013

30822444