Instructions – Parts List

Parts

Color Change Valve,

Dump Valve, and Manifolds

308291F

Model 832503, Series B

High Pressure Color Change Valve

This valve is for use only with high–pressure Color Change Manifolds 907345 to 907350 and should not be pressurized independently.

Model 947994, Series B

High Pressure Dump Valve

100 psi (0.7 MPa, 7.0 bar) Maximum Air Inlet Pressure

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

Model 907345 to 907350, Series A

High Pressure Color Change Manifolds

100 psi (0.7 MPa, 7.0 bar) Maximum Air Inlet Pressure

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

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

Color Change Valve

Model 832503

Dump Valve

Model 947994

See Parts List on page 9 (Ref. No. 2) for the difference between these two valves.

01858

Color Change Manifold

(Model 907347, 8 port, shown)

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

Copyright 1993, Graco Inc. is registered to I.S. EN ISO 9001

TI0315A

Table of Contents

Warnings

Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

5

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Color Change Valve and Dump Valve . . . . . . . . . . . . .

6

8

Color Change Manifolds

Dimensions

. . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10

12

Technical Data

Accessories

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12

13

Graco Standard Warranty

Graco Phone Number

. . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . .

14

14

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

SKIN INJECTION HAZARD

This equipment is used in a system that can generate very high fluid pressure. Spray from the gun, hose leaks, or ruptured components can inject fluid into your body and cause an extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin can also cause a serious injury.

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

D

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

D Follow the Pressure Relief Procedure on page 6 when you are instructed to relieve pressure; when the fluid supply is shut off; and before you install, clean, service, or remove the color change valve, dump valve, manifold, or any part of the system.

D Tighten all the fluid connections before you operate this equipment.

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

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

FIRE AND EXPLOSION HAZARD

Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and result in fire or explosion and serious injury. See Ground the System on page 4.

D Ground the equipment and the object being sprayed. Check your equipment instruction manuals and local electrical code for detailed grounding instructions for your area and type of equipment.

D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being sprayed.

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

D

Electrically disconnect all the equipment in the spray area.

D

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

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

D

Do not smoke in the spray area.

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

D

If there is any static sparking while you are using the equipment, stop spraying immediately .

Identify and correct the problem.

2 308291

WARNING

EQUIPMENT MISUSE HAZARD

INSTRUCTIONS

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

D

This equipment is for professional use only.

D Read all instruction manuals, tags, and labels before you operate this 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 the equipment daily. Repair or replace worn or damaged parts immediately.

D

Do not exceed the maximum working pressure of the lowest rated system component. This equipment has a 3000 (20.6 MPa, 206 bar) maximum fluid working pressure and 100 psi

(0.7 MPa, 7 bar) maximum air inlet pressure .

D

Use fluids or 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.

TOXIC FLUID HAZARD

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

D

Know the specific hazards of the fluid you are using. Read the fluid manufacturer’s warnings.

D Store hazardous fluid in an approved container. Dispose of the hazardous fluid according to all local, state, and national guidelines.

D

Wear appropriate protective clothing, gloves, eyewear, and respirator.

308291 3

Installation

Ground the System

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 that 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.

D

Pump: Ground the pump by connecting a ground wire and clamp between the fluid supply and a true earth ground as instructed in your separate pump instruction manual.

D Air compressors and hydraulic power supplies:

Follow manufacturer’s recommendations for grounding.

D Air , fluid, and hydraulic hoses connected to the pump: Use only electrically conductive hoses with a maximum of 500 feet (150 m) combined hose length to ensure grounding continuity. Check the electrical resistance of your air and fluid hoses at least once a week. If the total resistance to ground exceeds 29 megohms, replace the hose immediately.

NOTE: Use a meter that is capable of measuring resistance at this level.

D Spray gun: Connect to a properly grounded fluid hose and pump.

D Fluid supply container: Follow the local code for grounding.

D

Object being sprayed: Follow the local code for grounding.

D All solvent pails used when flushing: Follow the local code for grounding. Use only metal pails, which are conductive. Do not place the pail on a non-conductive surface, such as paper or cardboard, which interrupts the grounding continuity.

To maintain grounding continuity when flushing or relieving pressure, always hold a metal part of the gun firmly to the side of a grounded metal pail, then trigger the gun.

4 308291

Typical Installation

KEY

A Piston air inlet fitting

B Color change valve / dump valve

C Fluid inlet adapter

D Manifold inlet fitting

E Mounting bracket

F Fluid manifold, 2 valve

G 1/8 npt recirculating plug

H End block

J Fluid manifold, 4 valve

G

Installation

A

B

C

H

D E

F J

01882

Fig. 1

WARNING

To avoid a chemical reaction, which could lead to serious injury and equipment and property damage, be sure all fluids and solvents used are chemically compatible with the Wetted Parts. See Technical

Data on page 12. Check the material data sheet or the fluid manufacturer’s literature to see if the fluid is compatible with the wetted parts of this equipment.

1.

Mount the valve (B) on the fluid manifold (F). See

Fig. 1.

2.

Connect a 5/32 in. (3.97 mm) OD tube to the piston air inlet fitting (A).

3.

Install a suitable adapter (C) in the 1/8 npt fluid inlet of the valve. Apply thread sealant to the adapter threads before you install the adapter.

4.

Connect the fluid supply hose to the adapter.

5.

Connect the fluid hose from the dispensing device to the fluid manifold inlet fitting (D).

6.

If you are recirculating the paint, remove the recirculating plug from the valve, and connect the recirculating line to the 1/8 npt port using a suitable adapter. Apply thread sealant to the adapter threads before you install the adapter.

308291 5

Pressure Relief Procedure

WARNING

SKIN 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

D

When you are instructed to relieve the pressure

D When the fluid supply is shut off

D Before you install, clean, service, or remove the color valve, dump valve, manifold, or any part of the system

1.

Turn off the air supply and fluid supply to the color valve and/or dump valve.

2.

Follow the Pressure Relief Procedure for your fluid system dispensing device.

Service

Color Valve / Dump Valve Disassembly

WARNING

SKIN INJECTION HAZARD

To reduce the risk of serious injury, including fluid injection or splashing in the eyes or on the skin, always follow the Pressure Relief Procedure above, and read and follow the warnings in your pump and spraying device instruction manuals.

NOTE: Reference numbers in parentheses in the text refer to callouts in the Parts Drawing on page 8.

1.

Follow the Pressure Relief Procedure .

2.

Disconnect the air tube and fluid lines.

3.

Remove the valve from the fluid manifold.

4.

Loosen the set screw (11), and remove the u-clamp (10).

5.

Loosen the set screw (9), and separate the valve housings (3, 4).

6.

Remove the cylinder cap (13) and air piston (12).

7.

Remove the valve seat (2), valve needle (8), and seal guide (1).

8.

Clean and inspect parts for wear or damage.

Replace parts as needed.

6 308291

Service

Color Valve / Dump Valve Assembly

NOTE: If you remove the piston air inlet fitting, apply thread sealant to the threads, and torque it to 3 to 5 in-lb (0.34 to 0.56 N S m) when you install it.

1.

Replace the o-rings (5, 6, 7) and the needle o-ring

(8a) and PTFE back-up (8b). Lubricate them with light grease (no silicones).

2.

Install the seal guide (1), valve needle (8), and valve seat (2) into the fluid housing (3).

3.

Torque the valve seat (2) to 140 to 150 in-lb

(16 to 17 N S m). To prevent damage to the valve seat, do not overtighten it.

9.

Apply air to the air inlet fitting, and actuate the valve several times. To check for air leaks, submerge in water and watch for escaping air bubbles. Then apply approximately 80 psi (550 kPa, 5.5 bar) of air pressure to the fluid inlet.

Submerge in water again, and watch for escaping air bubbles. Tighten or replace parts as necessary to eliminate any leaks.

10. Install the valve on the fluid manifold, and connect the air tube and fluid lines.

Turn screw to adjust gap.

4.

Align the slots in the air piston (12) with the machine flats on the valve needle (8), and install the air piston (12) into the actuator housing (4).

5.

Hand tighten the cylinder cap (13) onto the actuator housing (4).

4

0.09” (2.29 mm)

6.

Assemble the actuator housing (4) and the fluid housing (3), aligning the air and fluid inlets. Secure the housings with the set screw (9).

7.

Install the u-clamp (10) on the air piston (12), and secure it with the set screw (11).

8.

Turn the valve needle screw to adjust the distance between the u-clamp (10) and the inner-edge of the actuator housing (4) to a 0.09 in. (2.29 mm) gap as shown in Fig. 2.

Fig. 2

10

01860

308291 7

{ * 6

12

10

{ * 5

Color Change Valve and Dump Valve

High-Pressure Color Change Valve

Model 832503, Series B

High-Pressure Dump Valve

Model 947994, Series B

15

3

13

11

8 * {

8b *

{

8a * {

4

9

1*

{

01859

2 * {

7 * {

8 308291

Color Change Valve and Dump Valve

High-Pressure Color Change Valve

Model 832503, Series B

High-Pressure Dump Valve

Model 947994, Series B

Ref.

No.

Part No.

Description Qty.

1*

{

833233 SEAL GUIDE

2* 15G726 VALVE SEAT

1

2

{

15G727 for Color Change Valve 832503 1

VALVE SEAT

3 15G725 for Dump Valve 947994

FLUID HOUSING

4 833241 ACTUATOR HOUSING

5*

{

155685 O-RING; buna-n

6*

{

103255 O-RING; buna-n

7*

{

102620 O-RING; CV75

8* { 236499 VALVE NEEDLE

8a* { 103185 O-RING, polyurethane

8b* { 103186 BACK-UP RING; PTFE

1

1

1

1

1

1

1

1

1

Ref.

No.

Part No.

Description

9

10

11

12

13

15

102207 SET SCREW; 1/4-20 x 0.25”

833232 U-CLAMP

101702 SET SCREW; 5–40 x 0.25”

833235 AIR PISTON

833234 CYLINDER CAP

504554 PLUG, pipe

* Available in Repair Kit 15G730. For use with

Color Change Valve 832503.

{ Available in Repair Kit 15G729. For use with

Dump Valve 947994.

Qty.

1

1

1

1

1

1

NOTE: The series B valve has a drill point on the fluid housing (3) and an annular groove on the valve seat (2), see below.

When buying Repair Kit 15G730 or 15G729, be sure to order fluid housing (3) to update a series A valve to the current series B design. This update only needs to be done once. Future repair kit orders do not require new fluid housing (3).

3 3

Series A

2 *

{

Series B

2 * {

308291 9

Color Change Manifolds

High-Pressure Color Change Manifolds

Models 907345 to 907350, Series A

Model 907347 (8 port) shown

1

7

5

10

8

9

1

7

Dimension A

10

3 or 4

5

6

2

TI0315A

10 308291

Color Change Manifolds

High-Pressure Color Change Manifolds

Models 907345 to 907350, Series A

No.

P t N

(Description)

1 832503

(VALVE)

See pages 8 and 9.

2 832904

(MANIFOLD)

3 833108

(MANIFOLD)

4 832905

(MANIFOLD)

5 833107

(BLOCK, outlet)

6 113137

(PACKING, O-ring)

7 100643

(SCREW, cap)

8 510947

(ROD, threaded)

9 102040

(NUT, lock)

10 832536

(BRACKET, mounting)

Length (Dimension A)

907345

4 Port

4

907346

6 Port

6 8

Quantity

907347

8 Port

907348

10 Port

10

907349

12 Port

12

907350

16 Port

16

8

1

4

0

1

0

1

1

1

0

1

1

2

12

1

4

1

1

0

1

2

16

1

4

2

0

1

1

3

20

1

4

2

1

0

1

3

24

1

4

0

1

3

1

4

32

1

4

2 2 2 2 2 2

4.56 in.

(115.8 mm)

6.97 in.

(177.0 mm)

7.38 in.

(187.5 mm)

8.78 in.

(223.0 mm)

10.19 in.

(258.8 mm)

13.00 in.

(330.2 mm)

308291 11

Dimensions

High-Pressure Color Change Valve

Model 832503, Series A

High-Pressure Dump Valve

Model 947994, Series A

See page 11 for Color Change Manifold lengths.

1.38 in.

(35.1 mm)

2.70 in.

(68.6 mm)

Technical Data

Maximum air inlet pressure . . . . . . . . . . . . . . . . . 100 psi

Air inlet tube requirements

Air inlet

. . . .

(0.7 MPa, 7 bar)

5/32 in. (3.97 mm) OD

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–32 UNF

Fluid inlet

Fluid outlet

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/8 npt(f)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/8 npt(f)

Wetted parts . . . . . . . . . . . . . . . . . stainless steel, CV75

PTFE, polyurethane

2.0 in.

(50.8 mm)

01858

12 308291

Accessories

Fluid Inlet Adapter 169797

1/4 npsm x 1/8 npt

Fluid Inlet Adapter 181153

For use in Europe and other international applications.

1/4-1/8 npsm/R 1/4-19 combined external male threads, compatible with NPSM and BSP female connectors.

Air Tube 054177

4 mm (5/32 in.) OD; nylon

Specify length needed when ordering.

Straight Air Inlet Fitting 108294

For use where the standard 90

_

elbow air inlet fitting cannot be used. 10–32 male thread.

308291 13

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 Phone Number

TO PLACE AN ORDER , contact your Graco distributor, or call this number 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 reflect the latest product information available at the time of publication.

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

MM 308291

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

GRACO INC.

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

www.graco.com

03/1993, Revised 06/2006

14 308291