Instructions - Parts List

Air Regulators

309924K

EN

Important Safety Instructions.

Read all warnings and instructions in this manual.

Save these instructions.

Part No.

234389

234434

234390

24H419

24H420

Description

Air Regulator with gauge, self relieving

Air Regulator with gauge, self relieving

Mini Air Regulator with gauge, self relieving

Mini Air Regulator with gauge, self relieving

Mini Air Regulator with gauge, self relieving

Inlet

234391 Air Regulator with

2 regulated outlets,

1 unregulated outlet

234392 Air Regulator with

3 regulated outlets

234393 Air Regulator 234391 with gauge and shutoff valve, 1 regulated outlet,

1 unregulated outlet

234394 Air Regulator 234392 with gauge and shutoff valve, 2 regulated outlets

3/8 in. npt(f)

3/8 in. npt(f)

3/8 in. npt(m)

3/8 in. npt(m)

1/4 in. npt(m)

1/4 in. npt(m)

1/4 in. npt(f)

1/4 in.

BSP(f)

1/4 in. npt(f)

Outlets Handle

Maximum

Inlet

Pressure psi (MPa, bar) knob 160(1.1, 11) 1/4 in. npt(f)

1/4 in. npt(f)

1/4 in. npt(f)

3/8 in.

BSP(f)

3/8 in. npt(f) knob knob

Knob

Knob

160(1.1, 11)

160(1.1, 11)

150 (1.0, 10)

150 (1.0, 10)

Maximum CFM Regulated at 50 psi (.34

Pressure

MPa, 3.4 bar

Range psi (MPa, bar)

22 CFM

35 CFM

22 CFM

22 CFM

22 CFM

0-160(1.1, 11)

0-160(1.1, 11)

0-160(1.1, 11)

0-150(1.0, 10)

0-150(1.0, 10)

1/4 in. npt(f) tee 175(1.2, 12) at 100 psi (0.7

MPa, 7 bar

50 CFM 0-175(1.2, 12)

1/4 in. npt(f)

1/4 in. npt(f)

1/4 in. npt(f) tee tee tee

175(1.2, 12)

160(1.1, 11)

160(1.1, 11)

50 CFM

50 CFM

50 CFM

0-175(1.2, 12)

0-160(1.1, 11)

0-160(1.1, 11)

2

Installation

Installation

Before installing air line components, blow out the pipe line to remove debris. Be sure air to the regulator is clean. Erratic operation or loss of regulation is usually caused by dirt in the regulator.

Use pipe compound or tape sparingly and only on male threads. Locate the regulator as close as possible to the equipment it serves.

Install a main air shutoff valve upstream from the air controls to isolate them for service.

Shop Air Piping Layout

NOTE:

• Main Air Line stand pipe should not be smaller than compressor outlet size.

• A minimum of 25 ft (7.62 m) from compressor to first filter outlet is required to cool air [50 ft. (15.24 m) optimum].

Main air line

3/4 in. (19 mm) minimum

1-1/4 in. (32 mm) optimum

1/2 in.

(13 mm) drops

Slopes

Recom

50 ft (1

down a

5.24 m nd awa y.

) galvan

(117 m ized pip e.

in

Air control unit or air filter

Membrane or desiccant air drying system

Ball valve

Drain leg

Drain valve

Coalescer

Compressor

Main air shutoff valve

15-20 ft

(4,6-6,1

m)

Flexible hose between compressor and stand pipe

Air filter

309924K

Installation

HP

1-1/2 - 2

3 - 5

5 - 10

10 - 15

Minimum Pipe Size Recommendations

Compressor Main Air Line

CFM

6 - 9

12 - 20

20 - 40

40 - 60

Length ft (m) any

Up to 200 (61)

Over 200 (61)

Up to 100 (30.5)

Over100-200 (30.5-61)

Over 200 (61)

Up to 100 (30.5)

Over100-200 (30.5-61)

Over 200 (61)

Size in. (mm)

3/4 (19)

3/4 (19)

1 (25.4)

3/4 (19)

1 (25.4)

1-1/4 (31.8)

3/4 (19)

1-1/4 (31.8)

1-1/2 (38.1)

Inlet

Pressure

Air Hose ID 1/4 in. (6.4 mm)

40 (276, 2.8) psi (kPa, bar)

SCFM (ft

3

/min)

50 (345, 3.4)

60 (414, 4.1)

70 (483, 4.8)

80 (552, 5.5)

90 (621, 6.2)

Air Hose ID 5/16 in. (7.9 mm)

40 (276, 2.8) psi (kPa, bar)

SCFM (ft

3

/min)

50 (345, 3.4)

60 (414, 4.1)

70 (483, 4.8)

80 (552, 5.5)

90 (621, 6.2)

4 ft

(1.22 m)

Air Pressure Drop Through Hose, by Hose Length and ID

Temperature = 68° F

10 ft

(3.05 m)

15 ft

(4.6 m)

20 ft

(6.1 m)

25 ft

(7.62 m)

50 ft

(15.24 m)

6 (41, .4)

14

7.5 (52, .5)

17

9 (62, .6)

20

10.75 (74, .7)

22

12.25 (84, .8)

25

14 (97, 1)

28

8 (55, .6)

10

10 (69, .7)

12

12.5 (86, .9)

14

14.5 (100, 1)

16

16.5 (114,1.1)

18

18.75 (129, 1.3)

20

9.5 (66, .7)

9

12 (83, .8)

11

14.5 (100, .1)

12

17 (117, 1.2)

14

19.5 (134, 1.3)

16

22 (152, 1.5)

17

11 (76, .8)

8

14 (97, 1)

10

16.75 (115,1.2)

11

19.5 (134, 1.3)

13

22.5 (155, 1.6)

15

25.25 (172, 1.7)

16

12.75 (88, 0.9)

8

16 (110, 1.1)

9

19 (131, 1.3)

11

22.5 (155, 1.6)

12

25.5 (176, 1.8)

14

29 (200, 2)

15

24 (165, 1.7)

8

28 (193, 1.9)

9

31 (214, 2.1)

10

34 (234, 2.3)

11

37 (255, 2.6)

12

39.5 (169, 2.7)

12

2.25 (16, .2)

15

3 (21, .2)

19

3.75 (26, .3)

22

4.5(31, .3)

26

5.5 (38, .4)

30

6.5 (45, .4)

34

2.75 (19, .2)

10

3.5 (24, .2)

12

4.5 (31, .3)

15

5.25 (36, .4)

17

6.25 (43, .4)

19

7.5 (52, .5)

22

3.25 (22, .2)

9

4 (28, .3)

11

5 (34, .3)

13

6 (41, .4)

15

7 (48, .5)

17

8.5 (59, .6)

19

3.5 (24, .2)

8

4.5 (31, .3)

10

5.5 (38, .4)

11

6.75 (47, .5)

13

8 (55, .6)

15

9.5 (66, .7)

17

4 (28, .3)

8

5 (34, .3)

9

6 (41, .4)

11

7.25 (50, .5)

12

8.75 (60, .6)

14

10.5 (72, .7)

16

8.5 (59, .6)

8

10 (69, .7)

9

11.5 (79, .8)

10

13 (90, .9)

12

14.5 (100, 1)

13

16 (110, 1.1)

14

309924K 3

4

Repair

Pressure Adjustment

Do not exceed the Maximum Incoming Air Pressure of the equipment. Over pressurizing can cause component rupture and serious injury.

Turn clockwise to increase air pressure. Turn counterclockwise to decrease air pressure.

NOTE: Push in the knob of Part No. 234389, 234390,

24H419, and 24H420 air regulators to lock their pressure setting.

Repair

1.

Follow

Pressure Relief Procedure

, above.

2.

Disassemble the regulator. Refer to

Parts

drawings.

3.

Wash parts with household soap and water or denatured alcohol.

4.

Wipe parts dry with a clean, soft, dry rag. Use compressed air to blow dirt and contaminants out of the regulator body.

5.

Inspect parts for wear or damage. Replace damaged parts.

6.

Reassemble the regulator.

Pressure Relief Procedure

To avoid injury, relieve air and fluid pressure before checking, cleaning, or repairing the equipment.

The following is a basic pressure relief procedure. Be sure to follow the specific pressure relief procedure in your spray gun and/or fluid supply equipment manuals.

1.

Close the main air shutoff valve.

2.

Trigger the gun or dispense valve and open any drain valves to relieve pressure.

309924K

Parts

Part No. 234389 and 234434

289163

Part No. 234390

289163

289164 for 234434 or

119428 for 234389

119010

288778 for 234434 or

156823 for 234389

288778

Outlet

119077

Inlet

NOTE: 234389 comes with a pressure relief valve.

289168

113911

119336

Inlet

Part No. 24H419 and 24H420

289169

156823

Outlet

Parts

Inlet

309924K

Outlet

5

Parts

Part No. 234393 (1 regulated, 1 unregulated outlet) and 234394 (2 regulated outlets)

119285

289149

234391 for 234393 or

234392 for 234394

Part No. 234391 (2 regulated, 1 unregulated outlet) and 234392 (3 regulated outlets)

289159

289160

289151

289165

Outlet

Outlet

289157

289156

289158

288780

289154

289152

288779

289153

289150 for 234391/234393 or

289166 for 234392/234394

Outlet

289155

Inlet

*Repair Kit 289167 available for models 234391 & 234392.

6 309924K

Parts

309924K 7

Graco Standard Warranty

Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of 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 procédures concernées.

Graco Phone Numbers

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

TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.

Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505

All written and visual data contained in this document reflects the latest product information available at the time of publication.

Graco reserves the right to make changes at any time without notice.

Original instructions.

This manual contains English. MM 309924

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

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

Copyright 2003, Graco Inc. is registered to ISO 9001 www.graco.com

Revision K, September 2016