Graco Series B Bedienungsanleitung

STAINLESS STEEL, WATERBASE COMPATIBLE

Fluid Pressure Regulators

Used to regulate fluid pressure in low pressure systems only.

Fluid Flow up to 3 GPM (11 liters/min)

Fluid Flow up to 1.4 GPM (5.3 liters/min.)

Air Operated Regulators

250 psi (18 bar) Maximum Inlet Fluid Pressure

5 to 100 psi (0.3 to 7.0 bar) Regulated Fluid Pressure

Part No. 830351, Series B

Supplied with Dump Valve

Part No. 830352, Series B

Bare Regulator (order dump valve separately)

Part No. 830353, Series B

Without Dump Valve

Instructions–Parts List

308292C

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

See page 2 for table of contents.

Model 830353

02029

2 308292

Table of Contents

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

Installation 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Drawings and Lists 9. . . . . . . . . . . . . . . . . . . . . . . .

Repair Kits 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Chart 13. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Standard Warranty 14. . . . . . . . . . . . . . . . . . . . . .

Graco Information 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 cor-

responding instructions.

WARNING

PRESSURIZED EQUIPMENT HAZARD

Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and

cause serious injury.

DFollow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,

checking, or servicing equipment.

DTighten all fluid connections before operating the equipment.

DCheck hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

DDo not exceed the maximum working pressure or temperature rating of the lowest rated system

component. See Technical Data in all equipment manuals.

DUse fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all

equipment manuals. Read fluid and solvent manufacturer’s warnings.

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

DDo not alter or modify equipment.

DFor professional use only.

DUse equipment only for its intended purpose. Call your Graco distributor for information.

DRoute hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

DDo not use hoses to pull equipment.

DComply with all applicable safety regulations.

308292 3

Installation

Fig. 1

02031

KEY

A Fluid Pressure Regulator

B Dump Valve (supplied on Model 830351)

C Inlet Ball Valve

D Outlet Ball Valve

E Main Air Line

F Air Filter and Moisture Separator

G Gun Air Regulator

H Air Regulator for Fluid Regulator

J Bleed-Type Master Air Valves

K Air Supply Line

L Gun Air Supply Line

M Air Spray Gun

N Gun Fluid Supply Line

P Fluid Return Line

R Back Pressure Valve

S Regulator Fluid Supply Line

T Dump Valve Pilot

U Pilot Air Line

V Fluid Dump Line

W Air Shutoff Valves

*NOTE: The fluid regulator (A) is shown from the top, to help

clarify its fluid and air connections. When installing the

regulator, orient it as shown on the front cover.

4 308292

Installation

Fluid pressure regulators (A) are used for accurate,

positive control of the fluid pressure to spray guns (M),

dispensing valves or atomizing heads.

Regulators installed at circulating line take-offs or with

pumps are used to reduce main line pressure and

maintain the desired fluid pressure to the spray gun or

atomizing head.

NOTE: Reference numbers and letters used in the text

refer to Figs. 1 and 2 and the Parts Drawings on pages

9 and 10.

Before Installing the Fluid Regulator

1. Determine where to locate the regulator (A). See

Fig. 1.

2. Install a ball valve at the regulator fluid inlet (C)

and outlet (D).

3. Install temporary plumbing between the inlet and

outlet ball valves.

4. Thoroughly flush the system to remove metal

chips and other contaminants and to check for

leaks.

Installing the Fluid Regulator

1. Remove the temporary plumbing and install one

regulator (A) for each spray gun (M). See Dimen-

sions,page 12, for regulator dimensions. Mount

the regulator with the fluid outlet at the bottom, for

the best flow and minimum pigment settling.

2. Install a bleed-type master air valve (J) in the air

supply line (K) to the fluid regulator, to relieve air

pressure in the fluid regulator after the air regulator

(H) is shut off.

3. Install another bleed valve (J) upstream from all

other air line accessories, to isolate the accesso-

ries for servicing.

4. Provide an air filter (F) to eliminate moisture and

harmful contaminants from the compressed air

supply.

5. Use air regulators (G, H) to control the air pressure

to the gun and fluid regulator. The fluid output

pressure of the fluid regulator is the same as the

air input pressure set on the air regulator (H).

6. Install air shutoff valves (W) on the air supply lines

to the gun and dump valve pilot.

7. On regulators with a dump valve, connect a

5/32 in. O.D. air line tube from the dump valve pilot

(T) to the air inlet fitting on the dump valve (B).

Connect a fluid dump line (V) to the 1/8 npt(f) port

of the dump valve. Place the free end of the dump

line in a properly grounded container to catch the

fluid.

8. Install a back pressure valve (R) to maintain

constant back pressure in the return line (P).

9. Connect the fluid supply line (S) to the regulator’s

swivel inlet (3). Connect the gun fluid supply line

(N) to the regulator’s angled fluid outlet (5).

10. Put pipe thread sealant on threaded connections,

except on swivel unions; sealant interferes with the

swivel action.

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

the flushing procedure on page 5.

308292 5

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

cause premature spray nozzle and pump wear.

NOTE: Reference numbers and letters used in the text

refer to Figs. 1 and 2 and the Parts Drawings on pages

9 and 10.

Pressure Relief Procedure

WARNING

To reduce the risk of an injury from injection,

splashing fluid, or moving parts, follow the Pres-

sure Relief Procedure whenever you:

Dare instructed to relieve the pressure,

DClean, check, or service any of the system

equipment,

1. Shut off the pump.

2. Close the fluid regulator’s inlet ball valve. Refer to

Fig. 1, page 3.

3. Relieve all fluid and air pressure in the fluid regula-

tor.

Regulating Fluid Pressure

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

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

Fig. 1.

2. Increase the air pressure to obtain the desired fluid

pressure. Before reducing the regulator pressure,

partially relieve pressure in the gun fluid supply

hose to ensure the correct gauge reading.

NOTE: For the best results, use an air regulator with at

least a 2 in. (51 mm) diameter diaphragm to control

this fluid regulator.

Using the Dump Valve

1. Shut off the fluid supply to the regulator.

2. Trigger the dump valve pilot (T). The valve will

open and relieve fluid pressure in the 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. Flush until thoroughly clean. Always use the lowest

possible pressure when flushing.

6 308292

Troubleshooting

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 5.

Before servicing this equipment always make sure to

Relieve the Pressure.

Check all possible remedies in the Troubleshooting

Chart before disassembling the fluid regulator.

PROBLEM CAUSE SOLUTION

No pressure regulation. Damaged or clogged air regulator or

line. Clear obstruction in line. Service regula-

tor if necessary.

Damaged diaphragm (10). Replace diaphragm.

Fluid leaks from under bowl

(18). Bowl is loose. Tighten screws (2). See Service sec-

tion.

Worn gasket (15). Replace gasket. See Service section.

Pressure creeps above set-

ting. Damaged or clogged air regulator or

line. Clear obstruction in line. Service regula-

tor if necessary.

Damaged diaphragm (10). Replace diaphragm.

Seat (7) leaking. Replace stem assembly (16), gasket

(8), seat (7) and ball (17).

Pressure drops below setting. Damaged or clogged air regulator or

line. Clear obstruction in line. Service regula-

tor if necessary.

Empty/clogged fluid supply line. Refill or flush supply line.

Clogged air spray gun or fluid dis-

pensing valve. Refer to gun or valve manual for service

instructions.

Using regulator above its rated flow

capacity (see Technical Data, page

13).

Use additional regulators.

308292 7

Service

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 5.

NOTE: Repair Kit 222651 is available to service the

regulator. See page 11 to order. Parts included in the

kit are marked with an asterisk, for example (6*).

1. Shut off the pump.

2. Close the ball valve at the regulator’s air inlet.

Refer to Fig. 1, page 3.

3. Release all the air and fluid pressure in the regula-

tor and disconnect the air and fluid lines.

4. Remove the swivel union (3), o-ring (6), and spring

(4) from the regulator bowl. See Fig. 2.

5. Remove the ball (17), seat (7) and gasket (8).

CAUTION

Use special care when handling the hard carbide ball

(17) and seat (7) to avoid damaging them.

6. Remove the six cap screws (2) while holding the

regulator housing (11) to the bowl (18). Separate

the bowl and housing.

7. Remove the jam nut (12) and washer (14) from the

stem assembly (16).

8. Remove the diaphragm (10) and gasket (15).

9. Thoroughly clean and inspect all parts. Replace

any parts that appear to be worn or damaged.

10. One at a time, place the gasket (15*), diaphragm

(10*) – white PTFE side facing up toward regulator

bowl, and washer (14) on the stem assembly (16).

Secure them with the jam nut (12). Torque the jam

nut to 15–19 ft–lb (20–25 NSm).

11. Install the assembled parts in the housing (11).

12. Install the regulator bowl (18) on the housing (11).

Tighten the six cap screws (2) in the sequence

shown in Fig. 2, Top View, and to the torque

noted.

13. Install the gasket (8*), valve seat (7*), and ball

(17*) into the bowl (18).

NOTE: The seat may be turned upside down and

reused.

14. Screw the swivel union (3), with the o-ring (6*)

attached and the spring (4*) in place, into the inlet.

Torque to 23–27 ft–lb (31–36 NSm).

8 308292

Service

Fig. 2

02032

TOP VIEW

NOTE: Numbers indicate tightening sequence. Tighten

evenly to 7–10 in–lb (0.8–1.1 NSm), then retorque to

125 in–lb (14 NSm) three times, consecutively, to

compensate for diaphragm relaxation.

17*

7* 2

15*

10*1412

02090

*17

15*

10*

308292 9

Parts

Model 830352, Series B

Without dump. Includes items 1–22.

Model 830353

Without dump. Includes items 1–18.

Ref.

No. Part No. Description Qty.

1 178422 GASKET, fluid outlet; acetal 1

2 100644 SCREW, cap, socket hd;

1/4–20 x 0.75 in. (19 mm) long 6

3 235209 UNION, swivel, fluid inlet;

3/8 npsm(f); sst 1

4* 111858 SPRING, compression; sst 1

5 178415 CONNECTOR, fluid outlet;

1/4 npsm(m); sst 1

6* 104319 O-RING; PTFE 1

7* 112366 SEAT, valve; tungsten carbide 1

8* 171860 GASKET, seat; nylon 1

10* 171868 DIAPHRAGM; PTFE 1

11 833166 HOUSING, regulator; aluminum 1

12 171858 NUT, jam, special; cst 1

14 171862 WASHER; acetal 1

15* 172132 GASKET; cellulose fiber 1

16 836115 STEM ASSEMBLY; sst 1

17* 112365 BALL; tungsten carbide 1

18 833383 BOWL w/dump, regulator; sst;

Used on Model 830352 1

833382 BOWL w/o dump, regulator; sst;

Used on Model 830353 1

21 181036 COVER, dump port;

Used on Model 830352 only 1

22 102598 SCREW, cap, socket hd;

10–32 x 0.5 in. (13 mm) long;

Used on Model 830352 only 2

* These parts are included in Repair Kit 222651,

which may be purchased separately. See page 11

to order. The kit includes some parts not used on

these regulators.

02033

101

102

103

10 308292

Parts

Model 830351, Series B

With dump. Includes items 101–103.

Ref.

No. Part No. Description Qty.

101 218964 DUMP VALVE ASSEMBLY

See manual 307941 for parts 1

102 102598 SCREW, cap, socket hd;

10–32 x 0.5 in. (13 mm) long;

Used on Model 830352 only 2

103 830352 FLUID REGULATOR, bare

see page 9 for parts 1

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