Graco 308225K User Manual

Instructions – Parts List

BULLDOG HYDRA–CATR FIXED RATIO

Proportioning Pumps

3000 psi (21 MPa, 207 bar) Maximum Working Pressure

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

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

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

Read warnings and instructions.

For a list of models, see page 6.

308225K

EN

Table of Contents

Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model Charts 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Typical Installations 7, 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

Operation 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shutdown and Care of the System 23. . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service – Displacement Pump 26. . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Standard Warranty 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

02910A

Symbols

Warning Symbol

WARNING

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

WARNING

INJECTION HAZARD

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

D Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate medi-

cal attention.

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

D Do not put your hand or fingers over the spray tip/nozzle.

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.

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 Check the gun diffuser operation weekly. Refer to the gun manual.

D Always have the trigger guard on the spray gun when spraying.

D Check the gun diffuser operation weekly. Refer to the gun manual.

D Be sure the gun trigger safety operates before spraying.

D Lock the gun trigger safety when you stop spraying.
D Follow the Pressure Relief Procedure on page 19 if the spray tip/nozzle clogs and whenever you:

are instructed to relieve pressure; stop spraying; clean, check, or service the equipment; and install
or clean the spray tip/nozzle.

D Tighten all fluid connections before operating the equipment.

D Check the hoses, tubes, and couplings daily. Do not mend or repair any part of the hose assembly.

If the hose is damaged, replace it immediately.

MOVING PARTS HAZARD

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

D Do not operate the equipment with the air motor plates removed.

D Keep your body and tools clear of any moving parts when starting or operating the equipment.

3082252

WARNING

FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD

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

D Ground the equipment and the object being sprayed. See Grounding on page 10.

D Do not use the heater with flammable liquids, such as those having flash points below 200_ F

(93_ C).

D All electrical wiring must be done by trained and qualified personnel and comply with all local codes

and regulations.

D If there is any static sparking while using the equipment, stop spraying immediately. 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 Do not smoke within the spray area.

D Extinguish all the open flames or pilot lights within the spray area.

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

D Electrically disconnect all the equipment within the spray area.

D Do not turn on or off any light switch within the spray area while operating or if fumes are present.

D Do not operate a gasoline engine within 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.

D Graco does not manufacture or supply any of the reactive chemical components that may be used

in this equipment and is not responsible for their effects. Graco assumes no responsibility for loss,
damage, expense or claims for personal injury or property damage, direct or consequential, arising
from the use of such chemical components.

308225 3

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 uncertain about usage, call your Graco

distributor.

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

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

D See the chart on page 6 for important pressure rating information. The maximum working pres-

sure of each model is also shown on the pump identification plate. Be sure that all dispensing
equipment and accessories are rated to withstand the maximum working pressure of your pump.
Do not exceed the maximum working pressure of the lowest rated system component.

D Never operate the pump without the automatic pressure relief valves and drainage kits installed.

These valves relieve fluid pressure through a drain port at the bottom of the valve if the displace­ment pump pressure exceeds the working pressure.

D Do not lift pressurized equipment.

D Use only Graco approved hoses. Do not remove hose spring guards, which help protect the hose

from rupture caused by kinks or bends near the couplings.

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

expose Graco hoses to temperatures above 180_F (82_C) or below –40_F (–40_C).

D Do not use the hoses to pull the equipment.
D Use fluids and solvents that are compatible with the equipment wetted parts. See the Technical

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

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

3082254

Notes

head.notes

308225 5

Model Charts

Mi

Pressure and Ratio Ratings for Bulldog Pumps

WARNING

COMPONENT RUPTURE HAZARD

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 pump fluid output 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 231897 231836 231865 3000 21, 207 86 0.6, 6 3000 21, 207 34.7 1.8 6.8

Bare Wall Stand psi

Fluid Output

Pressure*

MPa, bar

At Maximum
Air Pressure

Of:

psi MPa, bar psi

Working Pressure

Minimum

Component

MPA, bar

Normal

Pressure

Ratio

(Fluid to Air)

Nominal

Flow

Volume

@ 40 cpm

gpm lpm

Models with Three Displacement Pumps

A B

Maximum Pump

Model No.

x

Ratio

2:1 231908 231847 231876 2320 16, 160 100 0.7, 7 2900 20, 200 23.2 2.7 10.1
2:1 231910 231849 231878 3000 21, 207 86 0.6, 6 3600 25, 248 34.7 1.8 6.7
3:1 231912 231851 231880 2610 18, 180 100 0.7, 7 2900 20, 200 26.1 2.4 8.9
4:1 231915 231854 231883 2780 19, 192 100 0.7, 7 2900 20, 200 27.8 2.2 8.4

Bare Wall Stand psi

Fluid Output

Pressure*

MPA, bar

At Maximum
Air Pressure

Of

psi MPa, bar psi

Working Pressure

Minimum

Component

MPA, bar

Normal

Pressure

Ratio

(Fluid to Air)

Nominal

Flow

Volume

@ 40 cpm

gpm lpm

3082256

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 the exact position of the
installed system. For assistance in designing your
system, contact your nearest Graco representative.

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

Fig. 1

A

B

FG

H

A*E*

K*

L*

M

S

N*

P*

HARD

2

RES

R

Q

T

Q*

HARD

RES

E
A

HARDENER RESIN

J*

1

V*

K

U

M

Q*

02911

308225 7

Typical Installation

A

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 installation
iss shown below and on page 7 are only a guidelines
to setting up a complete proportioning system. For
clarity, various components are shown in the correct
order but may not be shown in the exact position of the
installed system. For assistance in designing your
system, contact your nearest Graco representative.

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

B

G

F

H

A*E*

J*

K*

L* M

W

S

C

D

N**

P**

R

2

Q

Q**

K

T

U

M

2

E

X*

A

J*

1

V*

Q*

Fig. 2

02912

3082258

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 starting on page
28 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.

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

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 Dimensions on page 43. The Bulldog pump and
accessories weigh approximately 115 lb (52 kg). The
pump stand and accessories weigh 55 lb (25 kg).

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.

308225 9

Installation

Grounding

WARNING

FIRE AND EXPLOSION HAZARD

Improper grounding could cause static
sparking, which could cause a fire or
explosion. To reduce the risk of property
damage or serious injury, follow the
grounding instructions below.

The following grounding instructions are minimum
requirements for a system. Your system may include
other equipment or objects which must be grounded.
Check your local electrical code for detailed grounding
instructions for your area and type of equipment. Your
system must be connected to a true earth ground.

1. Pump:

a. Loosen the grounding lug locknut (BB) and

washer (AA).

b. 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.

c. Connect the other end of the ground wire to a

true earth ground. Order part number 237569
grounding clamp wire.

2. Air hoses: use only grounded hoses with a maxi-

mum of 500 feet (150 m) combined hose length to
ensure grounding continuity.

3. Fluid hoses: use only grounded fluid hoses.

4. Air compressor: follow manufacturer’s recom-

mendations.

5. Spray gun or dispensing valve: grounding is

obtained through connection to a properly
grounded fluid hose and pump.

6. Fluid supply container: according to local code.

7. Object being sprayed: according to your local

code.

8. All solvent pails used when flushing, according

to local code. Use only metal pails, which are con­ductive, placed on a grounded surface. Do not place
the pail on a nonconductive surface, such as paper
or cardboard, which interrupts the grounding continu­ity.

Fig. 3

BB

AA

CC

G

9. To maintain grounding continuity when flush-
ing or relieving pressure, always hold a metal
part of the dispensing unit firmly to the side of a
grounded metal pail, then trigger the dispensing
unit.

30822510

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

INJECTION HAZARD

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.

A

B

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.

Automatic Pressure Relief Valves

WARNING

COMPONENT RUPTURE HAZARD

To reduce the risk of component rupture,
which could cause serious injury and
property damage, the appropriate auto-

matic pressure relief valve (18) 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).

A

E

C

D

Fig. 4

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.

G

02887

See the Model Chart on page 6 to determine the
preset pressure in your system.

18

38a
38b

NOTE: Item 38, Drainage Bottle
Kit, includes items 38a–38h

38g

38h

Fig. 5

38c

38f

02888A

308225 11

Installation

Automatic Pressure Relief Valves
(continued)

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 (18) open.

For the wall mount models, assemble the kit as shown
in Fig. 5, page 11, 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

INJECTION HAZARD

Fluid emitted from the automatic pressure drain
valves may be at pressures over 3000 psi (21
MPa, 207 bar). To reduce the risk of serious injury
from fluid injection or fluid splashing, make sure the
drain bottles are securely fastened to the frame or
wall so that they can handle a sudden spurt of
pressurized fluid.

Connect Fluid Supply Hoses

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. 76.

Additional System Components

Install and connect the feed pumps, solvent pump,
heaters, etc. Refer to the Typical Installations page 7
and Accessories on pages 40 and 41 for parts informa­tion.

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 41.

DD

EE

37B

RES

HARD

37A

CC

02889

Fig. 6

37B

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.

Fig. 7

RES

HARD

RES

EE

DD

37A

02890

30822512

Installation – Optional Fluid Heaters

All Models

NOTE: For systems requiring one heater for each

fluid, see page 40 to order the heaters and required
plumbing (items 201 to 205).

Fig. 8

201a

201b

201

202

OUT

IN

203

10

02913A

WARNING

INJECTION HAZARD

To reduce the risk of serious injury,
follow the Pressure Relief Procedure
on page 19 before installing the heaters.

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.

204

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 and 9.

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

See Three Displacement Pump Models on next page.

Fig. 9

23

RES

HARD

204B

204A

202A

RES HARD

OUT

RES HARD

IN

RES

HARD

202B

OUT

IN

10B10A

203B203A

02893

308225 13

Installation – Optional Fluid Heaters

23

205A

FA

202A

RES
HEATER

OUT

IN

RES HARD

Fig. 10

For Three Displacement Pump Models

RES HARD

17A 17B

HARD

RES

RES

HARD
HEATER

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

23

02892A

Fig. 11

30822514

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 41. These instructions assume
that the pump is being mounted to the back of the
stand offered in this manual. The Typical Installations
on pages 7 and 8 shows an alternate installation.
Adjust your installation according to your specific
needs.

1. Mount the solvent pump bracket (310) 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

308225 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.

KEY

A Bleed-type master air valve

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

air valve

A6 Solvent pump master air valve

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

How to Operate the Mixer Manifold

To open or close the mixer manifold 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

H Proportioning pump
N Mixer manifold
Q Fluid shutoff valve

Q1 Proportioning pump intake
Q2 Mixer manifold solvent inlet

KK

LL

LL

RES

HARD

02895

N2

P2

Fig. 14

E1

A5

A1

E2

A2

E3

A3

J1

Q1

A6

H

N

Q2

J2

E4

A4

02914

30822516

Flushing

How to Flush the System

WARNING

HOT SURFACE HAZARD

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.

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 . . .

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).

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).

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.

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

repeat Step c, above. See Fig. 13.

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

Fig.14.

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.

308225 17

Flushing

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 19.

WARNING

INJECTION HAZARD

To reduce the risk of serious injury from fluid injec­tion or fluid splashing, 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.

30822518

Operation

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 if the
spray tip/nozzle clogs and 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 tip.

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.

Handling Plural Component Fluid

WARNING

PLURAL COMPONENT FLUID
HAZARD

Be extremely cautious when handling
plural component materials and solvents
used with them. Some are extremely

toxic. See the Toxic Fluid Hazard warnings on
page 3. Read and follow the coating and solvent
manufacturer’s safety precautions and warnings.

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.

4. Disengage the dispensing valve safety latch.

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
solvent valves.

9. 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.

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

02897

308225 19

Operation

Check the Drainage Bottles and Hoses

WARNING

INJECTION HAZARD

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.

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.

Fig. 16

38

02948A

30822520

Operation

Startup

WARNING

INJECTION HAZARD

To reduce the risk of serious injury,
follow the Pressure Relief Procedure
on page 19 whenever you are instructed
to relieve the pressure.

Never exceed the maximum air and fluid working
pressure of the lowest rated component in your
system. See Equipment Misuse Hazard, page 4.

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.

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

7. Set the air pressure to the feed pumps at 88 psi
(605 kPa, 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.

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

KEY

A Bleed-type master air valve

A1 Hardener feed pump
A2 Resin feed pump
A3 Proportioning pump

E Pump air regulator

E1 Hardener feed pump

E2 Resin feed pump
E3 Proportioning pump

J Fluid pressure gauge

J1 Proportioning pump intake
J2 Proportioning pump outlet

E3

A2

E2

E1

A1

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

H Proportioning pump
N Mixer manifold
S Dispensing valve
V Fluid strainer

A3

H

N

S

Fig. 17

J1

V

J2

02913

308225 21

Operation

Checking the Mix Ratio

WARNING

INJECTION HAZARD

To reduce the risk of serious injury,
follow the Pressure Relief Procedure
on page 19 whenever you are instructed
to relieve the pressure.

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, page 17.

2. Follow the Pressure Relief Procedure, page 19.

3. Open the mixer manifold (N).

4. Set the operating pressure for the pumps. See
Steps 7 and 8 on page 21.

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

24. 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 24. If the ratio is correct the problem
is one of the other components.

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

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.

9. Open the mixer manifold.

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.

J2

KK

N

P1
P2

Fig. 18

J2

02898A

30822522

Shutdown and Care of the System

WARNING

INJECTION HAZARD

To reduce the risk of serious injury,
follow the Pressure Relief Procedure
on page 19 whenever you are instructed
to relieve the pressure.

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, page 19.

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 (J1), check and clean the
strainer (V). See Fig. 17, page 21.

Care of the Pump Throat Packing Nuts

Keep the throat packing nuts (JJ) filled with appropri­ate lubricant and check the tightness of the packing
nut weekly. See Fig. 19.

Always follow the Pressure Relief Procedure, page
19, before adjusting the packing nut. 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.

JJ

Fig. 19

308225 23

Troubleshooting

WARNING

INJECTION HAZARD

To reduce the risk of an injury from
injection, splashing fluid, or moving
parts, follow the Pressure Relief Proce-

dure on page 19 if the spray tip/nozzle clogs and
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 tip.

WARNING

MOVING PARTS HAZARD

To reduce the risk of serious injury,
including amputation, from moving parts
inside the air motor housing, never

operate the pump with the air motor plate removed.

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

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

RESIN

PUMP

FALLING RISING

TROUBLE AREA:

RESIN PUMP LEAKAGE

HARDENER

PUMP

TROUBLE AREA:

HARDENER PUMP LEAKAGE

1. THROAT PACKING

2. PISTON PACKING

3. PISTON BALL CHECK

RESIN

PUMP

RISING

TROUBLE AREA:

HARDENER PUMP LEAKAGE

HARDENER

PUMP

FALLING

1. THROAT PACKING

2. FOOT VALVE BALL CHECK

RESIN

PUMP

FALLING RISING

HARDENER

PUMP

1. THROAT PACKING

2. FOOT VALVE BALL CHECK

RESIN

PUMP

HARDENER

PUMP

FALLINGRISING

30822524

Problem Cause Solution

System will not 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.*

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

intake valve.

Dirty, worn or damaged resin pump pis­ton valve.

Fluid supply low.**

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.

Pump operates but hard­ener output pressure
drops during upstroke.*

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 will not close.

* Fluid ratio will be wrong.

** Purge all air out of the system before proportioning the fluids.

Dirty, worn or damaged resin pump in­take valve.

Worn or damaged hardener pump pis­ton packings.

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 pack-

ings.
Relief valve needs adjusting or is dam-

aged.

Clean, service pump. See instructions

in separate manual 307944 or 684004.

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.

Tighten, replace.

Adjust, service pump. See instructions

in separate manual 307944 or 684004.

308225 25

Service – Displacement Pump

WARNING

INJECTION HAZARD

To reduce the risk of serious injury,
follow the Pressure Relief Procedure
on page 19 whenever you are instructed
to relieve the pressure.

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 19. The Flushing
procedure is on page 17.

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.

1. 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.

RES

HARD

33

Fig. 20

41

RES

HARD

33

125

RES

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.

39

126

33

Fig. 21

30822526

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 (121) on the two displacement
pumps. Use a screwdriver and hammer to loosen.

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.

111

115

122

123
121

C

Fig. 22

114

122

113

1

1

1

Torque to
53–67 ft-lb
(72–91 NSm)

DETAIL B

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).

Push the cylinder up into place in the tie plate and
install the center locknut (123).

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).

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).

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 it from turning.

308225 27

Model 231897

101

Parts – Bare, Two Pumps

105

113

1

114

111

1

115

106

107

122

121

108

116

104

2

109

103

1

112

117

4

4

119

120

RES

HARD

118

1

Torque to 53–67 ft-lb (72–91 NSm)

2

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

4

Label

30822528

02915

Model 231897

Parts – Bare, Two Pumps

Ref.
No.

101 208356 BULLDOG AIR MOTOR,

103 100428 SCREW, hex cap head,

104 100128 LOCKWASHER, 5/8” 3
105 100468 SCREW, hex cap head,

106 171122 PLATE, mounting 1
107 100133 LOCKWASHER, 3/8” 4
108 100307 NUT, hex, 3/8–16 unc (2b) 4
109 172726 COUPLER 1
111 168455 TIE ROD, 8.937” (227 mm)

112 150429 GASKET 1

Part No. Description Qty.

see manual 307049

5/8–11 unc (2a) x 2”

3/8–16 unc (2a) x 1”

long shoulder to shoulder

Ref.
No.

1

3

4

4

113 101926 LOCKNUT, 1/2–20 unf with

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

117 188975 LABEL, resin 1
118 188974 LABEL, hardener 1
119 222012 RESIN DISPLACEMENT

120 222012 HARDENER DISPLACE-

121 164413 TIE PLATE 1
122 164417 LOCKNUT, outer 2

Part No. Description Qty.

2

nylon insert

4

with nylon insert

1
PUMP (see manual 307944
for parts)

1
MENT PUMP (see manual
307944 for parts)

308225 29

Parts – Bare, Three Pumps

Models 231908, 231910, 231912, and 231915

101

105

113

114

1

106

107
108

2

109

112

Torque to 53–67 ft-lb (72–91 NSm)

1

2

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

4

Label

5

Apply stainless steel pipe sealant to all threaded
connections.

104
103

111

1

115

122
123

121

1

122

116

119

4

117

4

RES

HARD

120

RES

118

117

4

124
125

124

126

5

02916

30822530

Parts – Bare, Three Pumps

Models 231908, 231910, 231912, and 231915

Ref.
No.

101 208356 BULLDOG AIR MOTOR,

103 100128 SCREW, hex cap head,

104 100428 LOCKWASHER, 5/8” 3
105 100468 SCREW, hex cap head,

106 171122 PLATE, mounting 1
107 100133 LOCKWASHER, 3/8” 4
108 100307 NUT, hex, 3/8–16 unc (2b) 4
109 172726 COUPLER 1
111 168455 TIE ROD, 8.937” (227 mm)

112 150429 GASKET 1
113 101926 LOCKNUT, 1/2–20 unf with

Part No. Description Qty.

1

see manual 307049

3

5/8–11 unc (2a) x 2”

4

3/8–16 unc (2a) x 1”

4

long shoulder to shoulder

2

nylon insert

Ref. No. 119 Ref. No. 120 Ref. No. 121 Ref. No. 122 Ref. No. 123

MODEL

231908 222012 307944 222012 307944 164413 164417 164417
231910 222017 307944 222017 307944 164413 164417 164417
231912 222012 307944 222017 307944 164413 164417 164417
231915 222012 307944 222019 307944 164413 164417 164417

RESIN

PUMP Qty 2

See this
manual for
parts

HARDENER

PUMP

Ref.
No.

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

117 188975 LABEL, resin 2
118 188974 LABEL, hardener 1
119 see table RESIN DISPLACEMENT

120 see table HARDENER DISPLACE-

121 see table TIE PLATE 1
122 see table OUTER LOCKNUT 2
123 see table 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

See this
manual for
parts

Part No. Description Qty.

with nylon insert

PUMP

MENT PUMP

npt (m x f)

TIE PLATE OUTER

LOCKNUT

CENTER

LOCKNUT

4

2

1

2

308225 31

Parts – Wall Mount, Two Pumps

Model 231836

Apply stainless steel pipe sealant to all threaded

1

connections except at swivels.

1

2

11,12

13

14

1

24

15

16

10

22

21

20

18

1

17

1

19

38

1

37

11, 28

23

29

1

13

1

30

1

25

30822532

35

36

1

02917A

31

1

26

1

27

32

37

1

33

1

34

Parts – Wall Mount, Two Pumps

Models 231836

Ref.
No.

1 231897 BARE PROPORTIONAL

2 205712 AIR REGULATOR KIT, see

10 236061 BRACKET, mounting 1
11 188596 MANIFOLD BLOCK 3
12 188975 LABEL, resin 1
13 102814 PRESSURE GAUGE, used

14 217378 HOSE, nylon, with spring

15 157676 SWIVEL UNION, 90_,

16 155699 ELBOW, street, 3/8–18 npt

17 161037 90_ SWIVEL, 1/2 npte x 3/8

18 237063 PRESSURE RELIEF

19 159239 NIPPLE, 1/2 x 3/8 npte 2
20 111591 WASHER, flat, 1/4” 4
21 100016 LOCKWASHER, 1/4” 4
22 100270 SCREW, cap hex head,

23 215626 MIXER MANIFOLD, see

24 156823 SWIVEL UNION, 1/4 npt(m)

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

27 235905 HOSE, cpld, 3/8–18 npt x

Part No. Description Qty.

PUMP, see parts on
page 29

parts in manual 306972

for hardener and resin;
0–5000 psi (34 MPa, 345
bar), 1/4–18 npt

guards, cpld 3/8–18 npt
(mbe) x 30”, 3/8” ID

1/4–18 npt (m x f)

(m x f), carbon steel

npsmi

VALVE

1/4–20 x 5/8”

manual 307400

x 1/4 npt(f)

npt (m) 1/4–18 npt (f)

30” mbe, 0.318 ID, PTFE

Ref.
No.

1

1

2

1

1

2

2

2

4

1

2

2

1

28 188974 LABEL, hardener 1
29 101748 PLUG, pipe, 3/8–18 npt(f),

30 206962 CHECK VALVE, 3/8 npt

31 100483 TEE, pipe, 3/8–18 npt (f) 2
32 105770 FLUID PRESSURE

33 16X233 ELBOW, street, 90_, 1/4–18

34 101078 FLUID STRAINER, 3/4 npt

34a 187758 S GASKET, PTFE 1
35 160032 NIPPLE, 3/4 npt 2
36 108537 BALL VALVE, 3/4–14 npt (f) 2
37 157785 SWIVEL UNION, 3/4 nps (f)

38 236249 DRAIN KIT ASSEMBLY,

Part No. Description Qty.

2
sst

2
(mbe)

2
GAUGE, 0–1000 psi (7,
MPa, 69 bar) 1/4 npt

1
npt(f) x 3/4–14 npt (m x f)

2
Includes item 34a

3
x 3/4 npt (m)

2

see parts on page 39

308225 33

Parts – Wall Mount, Three Pumps

Models 231847, 231849, 231851, and 231854

Apply stainless steel pipe sealant to all

1

threaded connections except at swivels

2

Included with bare pump

19

11, 12

1

13

14

2

2

10

22

21

20

1

18

1

17

2

16
15

38

23

42

1

1

41

11, 28

40
26

1

1

3729

24

25

1

13

1

30

31

1

26

1

27

39

35

36

1

34

37

1

33

41

1

02918A

30822534

Parts – Wall Mount, Three Pumps

Models 231847, 231849, 231851, and 231854

Ref.
No.

1 see table BARE PROPORTIONAL

2 207651 AIR REGULATOR KIT, see

10 236061 BRACKET, mounting 1
11 188596 MANIFOLD BLOCK 3
12 188975 LABEL, resin 1
13 see table PRESSURE GAUGE, used

14 217378 HOSE, nylon, with spring

15 157676 SWIVEL UNION, 90_,

16 155699 ELBOW, street, 3/8–18 npt

17 161037 90_, SWIVEL, 1/2 npte x

18 see table PRESSURE RELIEF

19 166469 NIPPLE, 3/4 hex, 3/8–18

20 111591 WASHER, flat, 1/4” 6
21 100016 LOCKWASHER, 1/4” 6
22 100270 SCREW, hex cap head,

23 215626 MIXER MANIFOLD, see

24 156823 NIPPLE 2
25 108233 NEEDLE (DRAIN) VALVE 2
26 164259 ELBOW, street, 3/8–18

27 235905 HOSE, cpld, 3/8–18 npt x

28 188974 LABEL, hardener 1
29 101748 PLUG, pipe, 3/8–18 npt(f),

30 206962 CHECK VALVE, 3/8 npt

31 100483 TEE, pipe, 3/8–18 npt(f) 3
33 16X233 ELBOW, street, 90_, 1/4–18

34 101078 FLUID STRAINER, 3/4 npt

34a 187758 S GASKET, PTFE 1

Part No. Description Qty.

PUMP, see parts on
page 31

parts in manual 306972

for hardener and resin

guards, cpld 3/8–18 npt
(mbe) x 30”, 3/8” ID

1/4–18 npt (m x f)

(m x f), carbon steel

3/8 npsmi

VALVE

npt mbe, sst

1/4–20 x 5/8”

manual 307400

npt(m) 1/4–18 npt(f)

30” mbe, 0.318 ID, PTFE

sst

(mbe)

npt(f) x 3/4–14 npt (m x f)

Includes item 34a

Ref.
No.

1

1

3

2

1

2

2

2

1

4

1

4

1

2

3

1

2

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)

38 236249 DRAIN KIT ASSEMBLY,

39 188597 ADAPTER, 3/4–14 npt(f) x

40 101742 BUSHING, 3/8 npt x 1” 1
41 105770 PRESSURE GAUGE,

42 159239 NIPPLE, 1/2 x 3/8 npte 2

* Pressure Gauge Description:

Part No. Description Qty.

x 3/4 npt (m)

see parts on page 39

3/4–14 npsm

0–1000 psi (7 MPa, 69 bar),
1/4–18 npt

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

Model

231847 231908 102814 237073
231849 231910 102814 237063
231851 231912 102814 237073
231854 231915 102814 237073

102814 0–5000 psi (34 MPa, 345 bar), 1/4–18 npt

Bare Pump Pressure

Gauge*

Pressure

Relief

Valve

3

2

1

2

308225 35

Parts – Stand Mount, Two Pumps

Model 231865

1

Apply anaerobic sealant and torque to
10–15 ft-lb (14–20 NSm)

1

50

51

52

53

1

1

53

54

51

50

55

02919A

30822536

Parts– Stand Mount, Two Pumps

Models 231865

Ref.
No.

1 231836 WALL MOUNT PUMP, see

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

Part No. Description Qty.

parts on page 33

Ref.
No.

1

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

54 178473 BRACE, frame 1
55 168422 CAP, square tube 6

Part No. Description Qty.

6
1/2–13 unc (2a) x 3-1/2”

308225 37

Parts– Stand Mount, Three Pumps

Models 231876, 231878, 231880, and
231883

Apply anaerobic sealant and torque to

1

10–15 ft-lb (14–20 NSm)

1

38j

50

51

52

38e

53

1

38a

38b

38c

38d

53

1

54

38f

38g

38h

51

50

55

02920A

30822538

Parts – Stand Mount, Three Pumps

Models 231876 through 231883

Ref.
No.

1 see table WALL MOUNT PUMP, see

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

54 178473 BRACE, frame 1
55 168422 CAP, square tube 6

Part No. Description Qty.

parts on page 35

1/2–13 unc (2a) x 3-1/2”

Ref. No. 1

Model

1

6

231876 231847
231878 231849
231880 231851
231883 231854

Wall

Pump

Ref No. 38
Drain Valve Kit

Supplied with the Wall Mount units and Stand Mount
units

Ref.
No.

38a 190738 S TUBE, nylon, 36” x 1/2”

38b 112279 S BOTTLE 1
38c 236272 S HOLDER, bottle 1
38d 100022 S SCREW, hex cap head,

38e 112278 S TIE WRAP 1
38f 100016 S LOCKWASHER, 1/4” 1
38g 111591 S WASHER, flat, 1/4” 1
38h 100015 S NUT HEX, 1/4–20 unc

38j 113187 S CONNECTOR, female,

Part No. Description Qty.

OD

1/4–20 unc (2a)

(2b)

tube

1

1

1

1

308225 39

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.

201 — FLUID HEATER, select from list

202 155494 SWIVEL UNION, 90_, 3/8–18

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

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

205 217378 HOSE, nylon, with spring

Part No. Description Qty.

2

to the right

2

npt (m x f)

2

x 3/8–18 nps(m)

1

npt x 30” mbe 0.318 ID PTFE

1
guards, resin, cpld 3/8–18 npt x
30” (mbe) 3/8” ID

201a

201b

201

202

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

Style B

Model 226819, 240 Volt Aluminum and Zinc

3000 psi (21 MPa, 207 bar) Maximum Working Pressure
80_ – 190_ F (26_ – 88_ C) Temperature Range

205

203

204

02891

Style A
Model 220522 shown

Style B
Model 226819 shown

30822540

Accessories

Parts for Installing Optional Solvent Pump

Ref.
No.

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

302 111913 COUPLING, hose, 1/4–18

303 061132 HOSE, nylon 1/4” ID x 36” long 1
304 206264 VALVE, needle, 1/4–18 npt (m) 1
305 158841 ADAPTER, 1/4–18 unc (f) x

306 217523 10:1 RATIO MONARK PUMP,

OR 208470 5:1 RATIO MONARK PUMP for

307 157350 ADAPTER, 3/8–18 npt x 1/4–18

308 155541 SWIVEL UNION, 90_, 1/4 npt

309
310 207365 BRACKET, mounting 1
311 241037 BALL VALVE 1
312 207484 SUCTION TUBE ASSEMBLY,

313 100101 SCREW, hex cap head, 3/8–16

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

Part No. Description Qty.

x 1/8–27 nptm

npsm, with spring guard, stain­less steel

3/8–18 npt (m), carbon steel

for heavy viscosity system

light viscosity system

npt (mbe)

(f x m)

as needed FLUID HOSE 1

3/4 npt

unc (2a) x 1”

Ref 5

301

302,303

2

2

1

1

306

307

305

A

A

301

304

308

1

309

1

1

310

B

316
315

314

313

1

4

312

02902

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’ x
1/4” (1.8 m x 6 mm ) hoses, control box with gauge,
regulator, and relief valve.
Inlet: 1/4” 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)

ISO Pump Oil

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

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

Grounding Wire and Clamp, 222011

7.6 m (25 ft) long,

1.5 mm@ (12 gauge)

308225 41

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 (1.7 MPa, 17 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.

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

Fluid Control Accessories

Fluid Filter

5000 psi (34 MPa, 345 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 (34 MPa, 345 bar) Maximum Working Pressure

Air Line Lubricator 214848

250 psi (1.7 MPa, 17 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.

Pump Runaway Valve 224040

120 psi (0.8 MPa, 8 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

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)

Static Mixing Units

3000 psi (21 MPa, 207 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” (356 mm) long, 5/16” (8 mm) ID, 27 Elements
3/8 npt order fittings separately

Model 500586

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

Model 502028

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

Model 945917

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

30822542

Dimensions

7

1

2

3

5

4

Mounting Hole Layout for Air Motor

1

2

5

6

6

1

02910A

3.712” (94 mm)

2

3.46” (88 mm)

3

4” (102 mm)

4

2” (51 mm)

5

5/8–11 UNC (3) for pump

3

4

1

01154

mounting

1

21–1/4” (540 mm)

2

32–3/4” (832 mm)

3

28–1/4” (718 mm)

4

17–3/4” (451 mm)

5

30–1/4” (768 mm)

6

11” (279 mm)

7

12–1/2” (318 mm)

6

0.44” (11.1 mm) diameter (4)

308225 43

Notes

head.notes

30822544

Technical Data

Pumps

Air operating range . . . . . 40–100 psi (280–700

kPa, 2.8–6.37 bar)

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,

207 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 polyethylene

Air consumption example:

When the air pressure to the pump is 60 psi (410 kPa,

4.1 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 6 for pressure ratios of pumps.

Manifold assemblies

Manifold outlets . . . . . . . . 3/8 npt

Hoses . . . . . . . . . . . . . . . . 3/8 in. ID, PTFE, cpld 3/8

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

Hoses . . . . . . . . . . . . . . . . 3/8 in. ID, nylon, cpld 3/8

npt(m) 3000 psi (21 MPa,
207 bar) maximum

working pressure
Automatic pressure relief

valves wetted parts . . . . . 303 stainless steel,

tungsten carbide,

fluoroelastomer

308225 45

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 by an authorized Graco distributor 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 308225

International Offices: Belgium, China, Japan, Korea

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

Copyright 1993, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.

Graco Headquarters: Minneapolis

www.graco.com

Revised December 2013

30822546