308325E Fluid Pressure Regulators - Graco

1 For Use In Low- Pressure Systems OnlyFluid Flow up to gpm ( lpm)Read warnings and Regulators100 psi ( MPa, 7 bar) Maximum Inlet Pressure3 to 30 psi (.02 to MPa, to bar)Regulated Pressure RangeModel 236081, Series Awith no Pressure gaugeModel 236449, Series Awith stainless steel Pressure gauge 30 psi ( MPa, bar) gaugeModel 241976, Series Awith stainless steel Pressure gauge60 psi ( MPa, bar) gauge_____100 psi ( MPa, 7 bar) Maximum Inlet Pressure20 to 100 psi (.14 to MPa, to 7 bar)Regulated Pressure RangeModel 236216, Series Awith no Pressure gaugeModel 236450, Series Awith stainless steel gauge100 psi ( MPa, 7 bar) gaugeAir-Operated Regulators100 psi ( MPa, 7 bar) Maximum Inlet Pressure3 to 100 psi (.)

2 02 to MPa, to 7 bar)Regulated Pressure RangeModel 238159, Series Awith no Pressure gaugeModel 236281, Series Awith stainless steel gauge100 psi ( MPa, 7 bar) gaugeInstructionsGRACO INC. BOX 1441 MINNEAPOLIS, MN 55440-1441 Copyright 2001, Graco Inc. is registered to EN ISO 9001 Fluid Pressure Regulators308325E02725 CAUTIONThe Fluid supply system main line pressuresoften exceed the Pressure range of the gaugesupplied with regulator 236449. Exposing thisgauge to excessive Pressure can damage thegauge, causing inaccurate readings, and theneedle will not return to zero. Such damage isnot covered by the Graco MATERIAL, WATERBASE COMPATIBLE3083252 Table of ContentsWarnings2.

3 Installation4.. Operation6.. Service8.. Troubleshooting12.. Parts13.. Repair Kits16.. Accessories16.. Dimensions16.. Technical Data17.. Performance Charts18.. Graco Standard Warranty20.. Graco Information20.. SymbolsWarning SymbolWARNINGThis symbol alerts you to the possibility of seriousinjury or death if you do not follow the SymbolCAUTIONThis symbol alerts you to the possibility of damage toor destruction of equipment if you do not follow MISUSE HAZARDE quipment misuse can cause the equipment to rupture or malfunction and result in serious equipment is for professional use all instruction manuals, tags, and labels before operating the the equipment only for its intended purpose.

4 If you are not sure, call your Graco not alter or modify this equipment. Use only genuine Graco parts and equipment daily. Repair or replace worn or damaged parts not exceed the maximum working Pressure of the lowest rated component in your system. Donot exceed 100 psi ( MPa, 7 bar) maximum Fluid inlet Pressure of the regulator or the maximumworking Pressure of the lowest-rated component in your fluids and solvents which are compatible with the equipment wetted parts. Refer to theTechnical Data section of all equipment manuals. Read the Fluid and solvent manufacturer wear protective eyewear, gloves, clothing, and respirator as recommended by the Fluid andsolvent with all applicable local, state, and national fire, electrical, and safety HAZARDS pray from the gun, leaks, or ruptured components can inject Fluid into your body and cause extremelyserious injury, including the need for amputation.

5 Fluid splashed in the eyes or on the skin can alsocause serious injected into the skin might look like just a cut, but it is a serious injury. Get immediatemedical not point the gun at anyone or at any part of the not put your hand or fingers over the spray gun tip or extruder gun not stop or deflect leaks with your hand, body, glove or have the tip guard and the trigger guard on the gun when the gun diffuser operation weekly. Refer to the gun sure the gun trigger safety operates before the gun trigger safety when you stop the Pressure Relief Procedure on page 4 if the spray tip clogs and before cleaning,checking, or servicing the all Fluid connections before operating the the hoses, tubes, and couplings daily.

6 Replace worn or damaged parts immediately. Do notrepair high Pressure couplings; you must replace the entire hoses must have spring guards on both ends to help protect them from rupture caused bykinks or bends near the Fluid HAZARDG raco does not manufacture or supply the reactive chemical components that may be used in thisequipment and is not responsible for injury or property loss, damage, expense or claims (direct orconsequential) that arise from the use of such chemical States Government safety standards have been adopted under the Occupational Safety and Health should consult these standards particularly the General Standards, Part 1910 and the ConstructionStandards, Part Pressure Regulators are used for accurate,positive control of the Fluid Pressure to spray guns,dispensing valves or atomizing installed at circulating line take-offs orpumps are used to reduce main line Pressure andmaintain the desired Fluid Pressure to the spray gun oratomizing Installing the Fluid Regulator1.

7 Determine where to locate the Install a ball valve for the regulator inlet and Install temporary plumbing between the Thoroughly flush the system to remove metalchips and other contaminants and to check the Fluid Regulator1. See Figs. 1 and 2 on page 5. Install oneregulator for each spray gun. Mount the regulatorin a vertical position for the best flow and minimumpigment settling. The gauge, if used, must bemounted vertically. If the regulator is mountedhorizontally, an elbow must be used so the gaugewill be Put sealer on threaded connections, except onswivel unions as it interferes with the swivel Flush and test the entire system.

8 Be sure to followthe flushing procedure on page overtightening threaded connections into theregulator s plastic inlet and outlet threads. Check tobe sure the threaded connections are tight andleak-free, but do not overtighten! Pressure Relief ProcedureWARNINGINJECTION HAZARDThe system Pressure must be manuallyrelieved to prevent the system fromstarting or spraying accidentally. Fluidunder high Pressure can be injected through theskin and cause serious injury. To reduce the risk ofan injury from injection, splashing Fluid , or movingparts, follow the Pressure Relief Procedurewhenever youDAre instructed to relieve the pressureDStop sprayingDCheck or service any of the system equipmentDInstall or clean the spray tips1.

9 Shut off the Close the Fluid regulator s inlet ball valve (B). Referto , page Relieve Fluid Pressure in the Fluid regulator bytriggering the spray In spring-operated Regulators , turn the adjustmenthandle (1) counterclockwise until the spring forceis you suspect that the spray tip or hose is completelyclogged, or that Pressure has not been fully relievedafter following the steps above, very slowly loosen thetip guard retaining nut or hose end coupling and relievepressure gradually, then loosen completely, then clearthe tip or 1 Spring-Operated Regulator InstallationModels 236081, 236216 (without gauge)236449, 236450, 241976 (with gauge)KEYA Fluid supplyB Inlet ball valveC Outlet ball valveD Air filter and regulatorE Back Pressure valveF Fluid returnG Air supply1 Regulator adjustment handleABDFG02726E1 CFig.

10 2 Pilot Regulator Air Supply LineAir-Operated Regulator InstallationModel 238159 (without gauge)Model 236281 (with gauge)KEYA Fluid supplyB Inlet ball valveC Outlet ball valveD Air filter, regulator, and moisture separatorE Air supplyABCDE027263083256 OperationCAUTIONDThe new system must be cleaned and testedthoroughly before admitting Fluid to the regulatorto avoid contaminants clogging or damaging use the lowest possible air and fluidpressures for your application. High pressurescan cause premature spray tip, regulator, andpump :Reference numbers and letters in parenthesesin the text refer to through 5 and the Fluid PressureSpring Operated Regulators1.