User manual GRACO 204501 H

[. . . ] Instructions­Parts List LOW PRESSURE Fluid Regulator For accurate, positive control of fluid pressure to one spray gun, dispensing valve, or atomizing head. For professional use only. 250 psi (18 bar, 1. 8 MPa) Maximum Inbound Pressure Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. 306563K ENG Model 203831 Series H 0­60 psi (0­4 bar, 0­0. 4 MPa) Regulated Pressure Gives positive control of fluid pressures in most normal direct supply and circulating spray systems. Model 204500 Series H 0­15 psi (0­1 bar, 0­0. 1 MPa) Regulated Pressure Has a counterbalance spring for positive closure at extremely low pressures. Model 204501 Series H 20­160 psi (1. 5­11 bar, 0. 15­1. 1 MPa) Regulated Pressure Has a heavier spring for precise control of fluid in the regulated range. Model 205425 Series H 0­60 psi (0­4 bar, 0­0. 4 MPa) Regulated Pressure has a large valve for more viscous fluids. Not intended for use with standard paints and lighter viscosity fluids, as these fluids lower the sensitivity of this regulator. 03367 Table of Contents Warnings . [. . . ] Connect an air atomizing hose to the spray gun and air regulator (F) See Fig. D To mount the regulator in a circulating system supply line (G), install an accessory outlet (H). One outlet (H) and air regulator (F) are required for each spray gun. 204819) may be ordered separately. CAUTION Before installing the regulator, check the tightness of the screws (1). 3 for the tightening sequence and the torque value. If the regulator leaks during operation, check and torque the screws again. In order to prevent damaging the regulator, blow out and flush the supply line to remove any particles. D Install regulator (A) in fluid supply line as close as possible to spray gun or dispensing valve (B) for easy operator control. 306563 5 Operation WARNING To reduce the risk of component rupture, which can cause a fire or explosion and result in serious bodily injury, including splashing in the eyes, never exceed 250 psi (18 bar, 1. 8 MPa) Maximum Inbound Fluid Pressure to this regulator. CLEANING THE REGULATOR Note: Flush the regulator every four weeks, or as necessary for the amount and type of use. Clear regulator of paint or other fluid by blowing back fluid through the gun and hose. Shut off supply pump and relieve line pressure by opening back pressure regulator or other by-pass valve. Open regulator valve by screwing the threaded portion of key (25) as far as possible into the cap. Loosen air cap ring of spray gun three turns, hold a rag firmly over the end of the cap and trigger the gun. Air will force fluid back through the gun, hose and regulator. After blow-back, remove the adjusting key (25) Note: Do not use the threaded end of key (25) to adjust pressure. 25 CAUTION Do not pressure test the regulator with air; use solvent. Air may cause leaks between the fluid seals and result in fluid leaks during normal operation. If the rest of the system must be pressure tested with air, loop past the regulator during the test. Insert hex end of key (25) in adjusting screw (20) and turn counterclockwise until spring tension is relieved. Start pump and open shutoff valve of outlet (H) to admit fluid to regulator. Turn key (25) clockwise until desired fluid pressure shows on gauge. CAUTION Do not exceed the Regulated Pressure specification of your regulator. Pressures higher than specified can damage the gauge. Blow Back Position Note: When reducing pressure, relieve pressure in gun and supply line to ensure a correct gauge reading. [. . . ] Torque to 70­80 in-lb (8­9 NSm). 5 3/8 NPSM (F) INLET 306563 11 The Graco Warranty and Disclaimers WARRANTY Graco warrants all equipment listed in this manual which is 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. 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. [. . . ]