Graco 308325E Fluid Pressure Regulators Users Manual

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For Use In Low-Pressure Systems Only

Fluid Flow up to 0.5 gpm (1.9 lpm)

Read warnings and instructions.

Spring-Operated Regulators

100 psi (0.7 MPa, 7 bar) Maximum Inlet Pressure

3 to 30 psi (.02 to 0.2 MPa, 0.2 to 2.1 bar)

Regulated Pressure Range

Model 236081, Series A

with no pressure gauge

Model 236449, Series A

with stainless steel pressure gauge

30 psi (0.2 MPa, 2.1 bar) gauge

Model 241976, Series A

with stainless steel pressure gauge

60 psi (0.4 MPa, 4.1 bar) gauge

_____________________________________

100 psi (0.7 MPa, 7 bar) Maximum Inlet Pressure

20 to 100 psi (.14 to 0.7 MPa, 1.4 to 7 bar)

Regulated Pressure Range

Model 236216, Series A

with no pressure gauge

Model 236450, Series A

with stainless steel gauge

100 psi (0.7 MPa, 7 bar) gauge

Air-Operated Regulators

100 psi (0.7 MPa, 7 bar) Maximum Inlet Pressure

3 to 100 psi (.02 to 0.7 MPa, 0.2 to 7 bar)

Regulated Pressure Range

Model 238159, Series A

with no pressure gauge

Model 236281, Series A

with stainless steel gauge

100 psi (0.7 MPa, 7 bar) gauge

Instructions

GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441

Copyright 2001, Graco Inc. is registered to I.S. EN ISO 9001

Fluid Pressure Regulators 308325E

02725

CAUTION

The fluid supply system main line pressures

often exceed the pressure range of the gauge

supplied with regulator 236449. Exposing this

gauge to excessive pressure can damage the

gauge, causing inaccurate readings, and the

needle will not return to zero. Such damage is

not covered by the Graco warranty.

ACETAL MATERIAL, WATERBASE COMPATIBLE

Parts

3083252

Table of Contents

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

Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Repair Kits 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Charts 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Standard Warranty 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Information 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious

injury or death if you do not follow the instructions.

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to

or destruction of equipment if you do not follow the

instructions.

WARNING

INSTRUCTIONS

EQUIPMENT MISUSE HAZARD

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

DThis equipment is for professional use only.

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

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

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

DCheck equipment daily. Repair or replace worn or damaged parts immediately.

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

not exceed 100 psi (0.7 MPa, 7 bar) maximum fluid inlet pressure of the regulator or the maximum

working pressure of the lowest-rated component in your system.

DUse fluids and solvents which are compatible with the equipment wetted parts. Refer to the

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

warnings.

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

solvent manufacturer.

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

308325 3

WARNING

INJECTION HAZARD

Spray from the gun, 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.

DFluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate

medical attention.

DDo not point the gun at anyone or at any part of the body.

DDo not put your hand or fingers over the spray gun tip or extruder gun tip.

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

DAlways have the tip guard and the trigger guard on the gun when spraying.

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

DBe sure the gun trigger safety operates before spraying.

DLock the gun trigger safety when you stop dispensing.

DFollow the Pressure Relief Procedure on page 4 if the spray tip clogs and before cleaning,

checking, or servicing the equipment.

DTighten all fluid connections before operating the equipment.

DCheck the hoses, tubes, and couplings daily. Replace worn or damaged parts immediately. Do not

repair high pressure couplings; you must replace the entire hose.

DFluid hoses must have spring guards on both ends to help protect them from rupture caused by

kinks or bends near the couplings.

TOXIC FLUID HAZARD

Graco does not manufacture or supply the reactive chemical components that may be used in this

equipment and is not responsible for injury or property loss, damage, expense or claims (direct or

consequential) that arise from the use of such chemical components.

United States Government safety standards have been adopted under the Occupational Safety and Health Act.

You should consult these standards––particularly the General Standards, Part 1910 and the Construction

Standards, Part 1926.

3083254

Installation

Introduction

Fluid pressure regulators are used for accurate,

positive control of the fluid pressure to spray guns,

dispensing valves or atomizing heads.

Regulators installed at circulating line take-offs or

pumps are used to reduce main line pressure and

maintain the desired fluid pressure to the spray gun or

atomizing head.

Before Installing the Fluid Regulator

1. Determine where to locate the regulator.

2. Install a ball valve for the regulator inlet and outlet.

3. Install temporary plumbing between the ball

valves.

4. Thoroughly flush the system to remove metal

chips and other contaminants and to check for

leaks.

Installing the Fluid Regulator

1. See Figs. 1 and 2 on page 5. Install one

regulator for each spray gun. Mount the regulator

in a vertical position for the best flow and minimum

pigment settling. The gauge, if used, must be

mounted vertically. If the regulator is mounted

horizontally, an elbow must be used so the gauge

will be vertical.

2. Put sealer on threaded connections, except on

swivel unions as it interferes with the swivel action.

3. Flush and test the entire system. Be sure to follow

the flushing procedure on page 6.

CAUTION

Avoid overtightening threaded connections into the

regulator’s plastic inlet and outlet threads. Check to

be sure the threaded connections are tight and

leak-free, but do not overtighten!

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

DAre instructed to relieve the pressure

DStop spraying

DCheck or service any of the system equipment

DInstall or clean the spray tips

1. Shut off the pump.

2. Close the fluid regulator’s inlet ball valve (B). Refer

to Fig.1, page 5.

3. Relieve fluid pressure in the fluid regulator by

triggering the spray gun.

4. In spring-operated regulators, turn the adjustment

handle (1) counterclockwise until the spring force

is relieved.

If you suspect that the spray tip or hose is completely

clogged, or that pressure has not been fully relieved

after following the steps above, very slowly loosen the

tip guard retaining nut or hose end coupling and relieve

pressure gradually, then loosen completely, then clear

the tip or hose.

308325 5

Installation

Fig. 1

Spring-Operated Regulator Installation

Models 236081, 236216 (without gauge)

236449, 236450, 241976 (with gauge)

KEY

A Fluid supply

B Inlet ball valve

C Outlet ball valve

D Air filter and regulator

E Back pressure valve

F Fluid return

G Air supply

1 Regulator adjustment handle

A

B

D

F

G

02726

E

1

C

Fig. 2

Pilot Regulator Air Supply Line

Air-Operated Regulator Installation

Model 238159 (without gauge)

Model 236281 (with gauge)

KEY

A Fluid supply

B Inlet ball valve

C Outlet ball valve

D Air filter, regulator, and

moisture separator

E Air supply

A

B

C

D

E

0272

6

3083256

Operation

CAUTION

DThe new system must be cleaned and tested

thoroughly before admitting fluid to the regulator

to avoid contaminants clogging or damaging the

regulator.

DAlways use the lowest possible air and fluid

pressures for your application. High pressures

can cause premature spray tip, regulator, and

pump wear.

NOTE: Reference numbers and letters in parentheses

in the text refer to Figs.1 through 5 and the Parts

Drawings.

Regulating Fluid Pressure

Spring Operated Regulators

1. Close the regulator: turn the adjustment handle (1)

counterclockwise to relieve the spring tension. See

Fig. 3.

2. Start the pump and open the fluid regulator’s inlet

ball valve (B) to admit fluid to the regulator. See

Fig. 1.

3. Turn the adjustment handle (1) clockwise to

increase fluid pressure. See Fig. 3. Adjust for the

desired spray pattern. Before reducing the

regulator pressure, partially relieve pressure in the

gun hose to ensure the correct gauge reading.

Tighten the jam nut (3) to the regulator cap (5) to

ensure the proper pressure setting.

Fig. 3

1

0272

9

3

5

Air Operated Regulators

1. Start the pump and open the fluid regulator’s inlet ball

valve (B) to admit fluid to the regulator. See Fig. 2.

2. Increase the air pressure to obtain the desired fluid

pressure. Before reducing the regulator pressure,

partially relieve pressure in the gun hose to ensure

the correct gauge reading.

NOTE: Make sure the air bleed hole (J) in the air line

fitting (2) is not plugged. Refer to Fig. 4. For the best

results, use an air regulator with at least a two inch

diameter diaphragm to control this fluid regulator.

Flushing Procedure

1. Flush the regulator with a compatible solvent

whenever the rest of the system is flushed.

2. Remove the gauge if the fluid pressure will exceed

the gauge range.

3. Spring Operated Regulators Only

a. Shut off the pump and relieve fluid pressure in

the system by opening the back pressure

valve (E) or other bypass valve. See Fig. 1.

b. Turn the adjustment handle (1) clockwise to

open the regulator valve to the desired flushing

outlet pressure and flow. See Fig. 3.

4. Air Operated Regulator Only

a. Increase the air pressure to obtain desired

fluid flushing pressure.

b. Make sure the air bleed hole (J) in the air line

fitting (2) is not plugged. Refer to Fig. 4.

5. Flush until thoroughly clean. Always use the lowest

possible pressure when flushing.

6. Spring Operated Regulators Only

After flushing, turn the adjustment handle (1)

counterclockwise to the previous pressure setting.

Partially relieve pressure in the gun hose to ensure

the correct gauge reading.

308325 7

Notes

3083258

Service

Air Operated Regulator

Disassembly

1. Shut off the pump. Close the ball valve at the

regulator’s air inlet. Refer to Fig. 2, page 5.

2. Release all the air and fluid pressure in the

regulator and disconnect the air and fluid lines.

3. Remove the regulator from the system. Remove

the eight hex head screws (18) and nuts (19) from

the regulator cap (5) and the housing (20). See

Fig. 4.

4. Remove the o-ring (6*) from the regulator cap (5).

Remove the jam nut (9) and the washer (10) from

the diaphragm plate (13).

5. Remove the diaphragm (11*) and gasket (12*).

6. Remove the valve seat (14*) and the o-ring (15*)

from the regulator body.

CAUTION

Use special care when handling the hard carbide ball

(16*) and seat (14*) to avoid damage to them.

7. Remove the ball (16*) and the spring (17*).

8. Thoroughly clean and inspect all parts. Replace

any parts that appear to be worn or damaged.

Reassembly

1. Place the spring (17*) into the housing (20), then

the ball (16*) on top of the spring.

CAUTION

Use special care when tightening the seat (14*).

Tighten the seat by hand several turns before using

a wrench. Use care not to strip the plastic threads in

the housing (20).

2. Tighten the seat (14*) and the o-ring (15*) into the

housing. Torque to 37–43 in–lbs (4.1–4.8 N.m).

3. Assemble the following parts onto the diaphragm

plate (13). Place the gasket (12*) and diaphragm

(11*), with the blue PTFE side facing down, toward

the diaphragm plate (13). Place the washer (10),

with ridges facing the rubber side of the

diaphragm, onto the diaphragm plate (13). Secure

them with the jam nut (9). Torque the jam nut onto

the diaphragm plate to 28–32 ft–lb (38–43 N.m).

4. Install the assembled parts in the housing (20),

with the stem on the diaphragm plate (13) oriented

towards the seat (14*).

5. Apply thread sealant and tighten the air line fitting

(2) into the nut (4) in the cap (5). Torque to

140–160 in–lb (16–18 N.m).

6. Place the hex head screws (18) into the eight

holes in the cap (5) and install onto the housing

(20) with the nuts (19) located around the housing

holes. Torque the eight hex head screws in the

sequence shown on the Top View in Fig. 4.

NOTE: Numbers on the diagram indicate the

tightening sequence. Torque screws evenly to 60 in–lb

(6.8 N.m), three times, consecutively, to compensate

for diaphragm relaxation.

308325 9

Service

Fig. 4

1

3

2

Model shown:

236281

Torque to 37–43 in–lbs (4.1–4.8 N.m).

Torque to 28–32 ft–lbs (38–43 N.m).

Torque screws evenly to 60 in–lb (6.8 N.m), three times,

consecutively, to compensate for diaphragm relaxation.

Follow the torque sequence shown below.

18, 19

5

20

12*

5

6*

9

10

13

14*

15*

16*

17*

1

2

3

2

02730

1

2

3

4

7

11*

8

6

02727

4

4Torque to 140–160 in–lbs (16–18 N.m).

Top View

J

4

30832510

Service

Spring Operated Regulators

Disassembly

1. Shut off the pump. Close the ball valve at the

regulator’s fluid inlet. Refer to Fig. 1, page 5.

2. Release all fluid pressure in the regulator and

disconnect the fluid line. Remove the regulator

from the system.

3. Turn the adjustment handle (1) counterclockwise

until the spring force is relieved (Fig. 3).

4. Remove the eight hex head screws (18) and nuts

(19) from the regulator cap (5) and the housing (20).

See Fig. 5.

5. Remove the spring (8), spring guide (7), and o-ring

(6*) from the regulator cap (5). Remove the jam

nut (9) and the washer (10) from the diaphragm

plate (13).

6. Remove the diaphragm (11*) and the gasket (12).

Remove the valve seat (14*) and o-ring (15*) from

the regulator body.

CAUTION

Use special care when handling the hard carbide ball

(16*) and seat (14*) to avoid damage to them.

7. Remove the ball (16*) and spring (17*).

8. Thoroughly clean and inspect all parts. Replace

any parts that appear to be worn or damaged.

Reassembly

1. Place the spring (17*) into the housing (20), then

the ball (16*) on top of the spring.

CAUTION

Use special care when tightening the seat (14).

Tighten it by hand several turns before using a

wrench. Use care not to strip the plastic threads in

the housing (20).

2. Tighten the seat (14*) and the o-ring (15*) into the

housing. Torque to 37–43 in–lbs (4.1–4.8 N.m).

3. Assemble the following parts onto the diaphragm

plate (13). First, place the gasket (12*) and

diaphragm (11*), with the blue PTFE side facing

down, towards the diaphragm plate (13). Then,

place the washer (10), with ridges facing the

rubber side of the diaphragm, onto the diaphragm

plate (13). Secure them with the jam nut (9).

Torque the jam nut onto the diaphragm plate to

28–32 ft–lb (38–43 N.m).

4. Install the assembled parts in the housing (20),

with the stem on the diaphragm plate (13) oriented

towards the seat (14*).

5. Coat the outer surfaces of the spring (8) with no. 2

lithium base grease to reduce possible friction.

6. Place the spring (8) on top of the jam nut (9) and

the spring guide (7) on top of the other end of the

spring. Apply no.2 lithium base grease in the drill

point of the spring guide for lubrication.

7. Place the hex head screws (18) into the eight

holes in the cap (5) and install onto the housing

(20) with the nuts (19) located around the housing

holes. Torque the eight hex head screws in the

sequence shown on the Top View in Fig. 5.

8. Screw the adjustment handle (1) into the nut (4) in

the regulator cap (5).

308325 11

Service

Fig. 5

1

3

2

Model 236081 shown

Torque to 37–43 in–lbs (4.1–4.8 N.m).

Torque to 28–32 ft–lb (38–43 N.m).

Torque screws evenly to 60 in–lb (6.8 N.m), three times, consecu-

tively, to compensate for diaphragm relaxation. Follow the torque

sequence shown below.

17*

20 16*

1

15*

13

9

11*

12*

10

2

5

18, 19

3

1

7

8

*6

02732

5

1

2

3

4

7

8

6

02766

Top View

14*

4

30832512

Troubleshooting

NOTE: Check all possible remedies in the

Troubleshooting Chart before disassembling the fluid

regulator.

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 4.

Problem Cause Solution

No pressure regulation. Damaged or clogged air regulator

or line (236281 or 238159).

No flow or pressure to the inlet of

the regulator.

Damaged diaphragm (11*).

Clear obstruction in line, service

regulator if necessary.

Clear obstruction in the fluid line to

the regulator.

Replace diaphragm.

Fluid leaks from between the cap

(5) and the housing (20).

Loose cap (5).

Worn gasket (12*).

Worn o-ring (6*).

Tighten screws (18,19) in se-

quence shown in Service section.

Replace gasket.

Replace o-ring.

Pressure creeps above setting. Damaged or clogged air regulator

or line (236281 or 238159).

Damaged diaphragm (11*).

Contamination between ball (16*)

and seat (14*).

Clear obstruction in line, service

regulator if necessary.

Replace diaphragm.

Replace ball (16*), seat (14*), and

o-ring (15*).

Pressure drops below setting. Damaged or clogged air regulator

or line (236281 or 238159).

Empty/clogged supply line.

Clogged air spray gun or fluid dis-

pensing valve.

Using regulator beyond its rated

flow capacity, see Technical Data

on page 17.

Clear obstruction in line, service

regulator if necessary.

Fill/flush supply line.

Replace, see gun or valve manual

for service instructions.

Install additional regulators.

308325 13

Parts

Spring-Operated Regulators

3 to 30 psi (.02 to 0.2 MPa, 0.2 to 2.1 bar) Regulated Pressure Range

Model 236081, Series A, includes items 1 to 20 (no gauge)

Model 236449, Series A, includes items 1 to 20, and 30 (30 psi gauge)

Model 241976, Series A, includes items 1 to 20, and 28 (60 psi gauge)

1

3

18

5

*6

4

7

8

30

9

10

11*

12*

13

14*

15*

16*

17*

20

19

02735

Ref.

No. Part No. Description Qty.

1 236590 Adjustment Handle Assembly 1

3 101448 NUT, jam; 3/8–24 unf–2b 1

4 106292 NUT, hex; 3/8–24 unf–2b 1

5 188943 CAP, regulator 1

6* 112349 O-RING, buna 1

7 188949 GUIDE, spring 1

8 112203 SPRING, compression,

adjusting, yellow 1

9 171858 NUT, jam, special;

11/16–16 unc–2b 1

10 171862 WASHER, diaphragm 1

11* 112348 DIAPHRAGM; PTFE with nylon

fabric/buna–n base 1

12* 172132 GASKET; cellulose fiber 1

13 236591 Diaphragm Plate Assembly

11/16–16 unc–2a 1

Ref.

No. Part No. Description Qty.

14* 188944 SEAT, valve; stainless steel 1

15* 109450 O-RING; PTFE 1

16* 102922 BALL, tungsten carbide 1

17* 112204 SPRING, compression, ball 1

18 112547 SCREW, flanged hex head;

1/4–20 unc–2a x 1” 8

19 112248 NUT, hex, retaining;

1/4–20 unc–2b 8

20 188942 HOUSING, regulator 1

28 195583 GAUGE, pressure,

60 psi (0.4 MPa, 4 bar);

stainless steel (model 241976) 1

30 187875 GAUGE, pressure,

30 psi (0.2 MPa, 2 bar);

stainless steel (model 236449) 1

* These parts are included in Repair Kit 236589,

which may be purchased separately.

30832514

Parts

Spring-Operated Regulators

20 to 100 psi (.14 to 0.7 MPa, 1.4 to 7 bar) Regulated Pressure Range

Model 236216, Series A, includes items 1 to 20 (no gauge)

Model 236450, Series A, includes items 1 to 30 (100 psi gauge)

11*

4

1

3

18

20

5

*6

7

9

8

10

12*

13

14*

15*

17*

16*

19

30

02735

Ref.

No. Part No. Description Qty.

1 236590 Adjustment Handle Assembly 1

3 101448 NUT, jam; 3/8–24 unf–2b 1

4 106292 NUT, hex; adjustment;

3/8–24 unf–2b 1

5 188943 CAP, regulator 1

6* 112349 O-RING, buna–n 1

7 188949 GUIDE, spring 1

8 105291 SPRING, compression, adjusting,

silver 1

9 171858 NUT, jam, special;

11/16–16 unc–2b 1

10 171862 WASHER, diaphragm 1

11* 112348 DIAPHRAGM; PTFE with nylon

fabric/buna–n base 1

12* 172132 GASKET; cellulose fiber 1

Ref.

No. Part No. Description Qty.

13 236591 Diaphragm Plate Assembly

11/16–16 unc–2a 1

14* 188944 SEAT, valve; stainless steel 1

15* 109450 O-RING; PTFE 1

16* 102922 BALL, tungsten carbide 1

17* 112204 SPRING, compression, ball 1

18 112547 SCREW, flanged hex head;

1/4–20 unc–2a x 1” 8

19 112248 NUT, hex, retaining;

1/4–20 unc–2b 8

20 188942 HOUSING, regulator 1

30 187874 GAUGE, pressure,

100 psi (0.7 MPa, 7 bar);

stainless steel 1

* These parts are included in Repair Kit 236589,

which may be purchased separately.

308325 15

Parts

Air-Operated Regulators

3 to 100 psi (.02 to 0.7 MPa, 0.2 to 7 bar) Regulated Pressure Range

Model 238159, Series A, includes items 1 to 20 (no gauge)

Model 236281, Series A, includes items 1 to 20, and 30 (100 psi gauge)

14*

02733

2

18

5

19

20

17*

16*

15*

13

12*

11*

10

9

30

*6

4

Ref.

No. Part No. Description Qty.

2 189539 NIPPLE, hex 1

4 106292 NUT, hex; 3/8–24 unf–2b 1

5 188943 CAP, regulator 1

6* 112349 O-RING; buna–n 1

9* 171858 NUT, Jam, special;

11/16–16 unc–2b 1

10 171862 WASHER, diaphragm 1

11* 112348 DIAPHRAGM; PTFE with nylon

fabric/buna–n base 1

12* 172132 GASKET; cellulose fiber 1

13 236591 Diaphragm Plate Assembly 1

14*188944 SEAT, valve; stainless steel 1

Ref.

No. Part No. Description Qty.

15*109450 O-RING; PTFE 1

16* 102922 BALL; tungsten carbide 1

17* 112204 SPRING, compression, ball 1

18 112547 SCREW flanged hex head;

1/4–20 unc–2a x 1” 8

19 112248 NUT, hex, retaining;

1/4–20 unc–2b 8

20 188942 HOUSING, regulator 1

30 187874 GAUGE, pressure,

100 psi (0.7 MPa, 7 bar);

stainless steel 1

* These parts are included in Repair Kit 236589,

which may be purchased separately.

30832516

Repair Kits

Kit No. 236589

For spring- and air-operated regulators

Part No. Description Qty.

112348 DIAPHRAGM; PTFE with nylon

fabric/buna–n base 1

172132 GASKET; cellulose fiber 1

188944 SEAT, valve; stainless steel 1

109450 O-RING; PTFE 1

112204 SPRING, compression, ball 1

102922 BALL, tungsten carbide 1

112349 O-RING; buna–n 1

Dimensions

1

3

4

2

1

5.81” (148 mm)

1.62” (41 mm)

3.75” (95 mm) diameter

6.6” ( 168 mm)

2.25” (57 mm)

2

3

4

5

5

1/4 npt(f)

inlet

1/4 npt (f) outlet

1/4 npt

gauge

port

Accessories

Use Only Genuine Graco Parts

and Accessories

Air Filter, Moisture Separator with

Regulators 217075

200 psi (1.4 MPa, 14 bar) Maximum Inlet Pressure

For moisture separation and to separate air regulation

to spray gun and fluid regulator. 1/2 npt(f) inlet

With two 0 to 100 psi (0 to 0.7 MPa, 0 to 7 bar) 1/4

npt(m) regulated ports and two 0 to 200 psi

(0 to 1.4 MPa, 0 to 14 bar) 3/8 npt(f) unregulated ports

Air Regulator and Gauge 206199

0 to 125 psi (0 to 0.75 MPa, 0 to 8.5 bar) regulated

pressure range; 200 psi (1.4 MPa, 14 bar) steel

pressure gauge; 1/2 npt(f) inlet and outlet

Fitting Kits

For use when installing the fluid pressure regulator to

systems requiring the following material and

dimensions.

Kit 236609 – stainless steel

Part No. Description Qty.

112497 SWIVEL, union, 3/8–18 npsm x

1/4–18 npt 1

112494 NIPPLE, 3/8–18 npsm x 1/4–18 npt 1

Kit 236610 – metric – stainless steel

Part No. Description Qty.

112498 SWIVEL, union, 3/8–19 bspt x

1/4–18 npt 1

112495 NIPPLE, 3/8–19 bspt x 1/4–18 npt 1

Carbon Steel Adapter Fittings

Part No. Description Qty.

157705 SWIVEL, union, 3/8–18 npsm x

1/4–18 npt 1

183461 NIPPLE, 3/8–18 npsm x 1/4–18 npt 1

308325 17

Technical Data

Maximum fluid inlet pressure 100 psi. . . . . . . . . . . . . . . .

(0.7 Mpa, 7 bar)

Maximum fluid operating temperature 150d F. . . . . . . .

(66d C)

Regulated fluid pressure range

Models 236081, 236449, 241976 3 to 30 psi. . . . . . . .

(.02 to 0.2 MPa, 0.2 to 2.1 bar)

Models 236216 and 236450 20 to 100 psi. . . . . . . . . .

(.14 to 0.7 MPa, 1.4 to 7.0 bar)

Models 236281, 238159 3 to 100 psi. . . . . . . . . . . . . .

(.02 to 0.7 MPa, 0.2 to 7 bar)

Maximum flow capacity 0.5 gpm (1.9 lpm). . . . . . . . . .

with 70 cps fluid at 100 psi

(0.7 MPa, 7 bar) inbound pressure

Wetted Parts acetal resins, PTFE,. . . . . . . . . . . . . . . . .

tungsten carbide, 304 and 316 series

stainless steel, 17−4 PH stainless steel

Weight

Model 236081 1.2 lb. (0.54 kg). . . . . . . . . . . . . . . . . .

Model 236216 1.28 lb. (0.58 kg). . . . . . . . . . . . . . . . .

Model 236281 1.6 lb. (0.73 kg). . . . . . . . . . . . . . . . . .

Model 236449 1.5 lb. (0.68 kg). . . . . . . . . . . . . . . . . .

Model 236450 1.6 lb. (0.73 kg). . . . . . . . . . . . . . . . . .

Model 238159 1.39 lb. (0.63 kg). . . . . . . . . . . . . . . .

Model 241976 1.5 lb. (0.68 kg). . . . . . . . . . . . . . . . . .

30832518

Performance Charts

0

5

10

15

20

25

30

0.0 0.1 0.2 0.3 0.4 0.5

0.38

13

0.76

26

1.14

38

1.51

51

1.89

64

FLUID FLOW

REGULATED FLUID PRESSURE

psi bar

0.7

1.4

2.1

1.0

1.7

0.4

lpm

ounces/min

gpm

Model 236081, 235449, 241976

0

10

20

30

40

50

60

70

80

90

100

0.0 0.1 0.2 0.3 0.4 0.5

FLUID FLOW

REGULATED FLUID PRESSURE

psi bar

0.7

1.4

2.1

lpm

ounces/min

gpm

2.8

3.5

4.2

4.9

5.6

6.3

7.0

0.38

13

0.76

26

1.14

38

1.51

51

1.89

64

Model 236216, 236450, 236281, and 238159

308325 19

Notes

30832520

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

TO PLACE AN ORDER, contact your Graco distributor, or call this number to identify the distributor closest to you:

1–800–367–4023 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.

Sales Office: Minneapolis

International Offices: Belgium, Korea, Hong Kong, Japan

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

www.graco.com

PRINTED IN U.S.A. 308325 03/1998 Rev. 12/02