Graco 308115J User Manual

Instructions – Parts List

Parts

MODEL LSPBR 1000T

STAINLESS STEEL, LOW SHEAR, WATERBASE COMPATIBLE

Back Pressure Regulator

300 psi (2.1 MPa, 21 bar) Maximum Working Pressure

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

4 GPM (15 L/min) Minimum Fluid Flowrate

For use in circulating air spray systems only

Part No. 223824, Series B

With 2 inch sanitary clamp

Part No. 224486. Series B

With 1–1/2 inch npt(f) fittings

For use with waterbase fluids in circulating air spray systems. Provides regulated back pressure to the spray gun(s) and maintains proper circulating pressure throughout the system.

308115J

U.S. and Foreign Patents Pending

Read warnings and instructions.

See page 2 for table of contents.

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

Table of Contents

Symbols

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

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

Operation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Standard Warranty 8. . . . . . . . . . . . . . . . . . . . . . .

Graco Information 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

WARNING

EQUIPMENT MISUSE HAZARD

INSTRUCTIONS

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

D This equipment is for professional use only.

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 corresponding instructions.

D Read all the 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 the equipment daily. Repair or replace worn or damaged parts immediately.

D Do not exceed the maximum pressure of the lowest rated system component. This equipment has

a 300 psi (2.1 MPa, 21 bar) maximum inlet pressure and a 30 psi (210 kPa, 2.1 bar) maximum static fluid pressure.

D Use fluids that are compatible with the equipment wetted parts. See the Technical Data section of

all the equipment manuals. Read the fluid manufacturer’s warnings.

D Route the hoses away from 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 Comply with all applicable local, state, and national fire, electrical, and other safety regulations.

PRESSURIZED EQUIPMENT HAZARD

Spray from the gun, hose leaks, or ruptured components can splash fluid in the eyes or on the skin and cause serious injury.

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

D Follow the Pressure Relief Procedure in your separate equipment manuals whenever you: are

D Tighten all the fluid connections before operating the equipment.

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

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

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

Installation

FLUID SUPPLY LINE

FLUID PRESSURE REGULATOR

AIR SPRAY GUN

FLUID RETURN LINE

Fig. 1

Installing the Back Pressure Regulator

The regulator is available with either 2 in. sanitary clamps (Model 223824) or with 1–1/2 in. npt(f) fittings (Model 224486). Be sure to order the regulator with the type of end fittings required. The fittings should not need to be removed or replaced during installation.

AIR SUPPLY

ADJUSTING

SCREW

Install the back pressure regulator in the spray gun return line. See Fig. 1. Connect the fluid line to the inlet and outlet fittings, making sure the flow direction agrees with the IN and OUT markings on the regulator body.

BACK PRESSURE REGULATOR

CAUTION

WARNING

If the end fittings are loosened or removed, be sure to torque them to 100 to 110 ft-lb (135 to 150 NSm) when they are tightened or installed. Failure to do so could cause fluid to discharge and result in serious injury or property damage.

CAUTION

To avoid fluid leakage, use only Graco Fitting Kits 916331 or 916343 when installing Model 223824 regulator.

The fluid flow direction must agree with the IN and OUT markings on the regulator body. Failure to do so will damage the back pressure regulator.

The back pressure regulator is adjustable to control the fluid pressures in a circulating system from 15 to 200 psi (0.1 to 1.4 MPa, 1 to 14 bar).

If more than one spray station is used, install the back pressure regulator in the fluid supply line after the last station. This will help maintain proper circulating pressures in the system.

CAUTION

To avoid excessive wear on the diaphragm, regulator inlet pressure should not be allowed to pulsate greater then +/– 5% of nominal pressure.

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