Relief Valves PRV - Series Application The PRV series of relief valves are ideal for air service. The valve will weep slightly at set pressure and achieve full lift and high flow by 110 percent of their rated set pressure. Features • • • • • • • Bubble tight at 95% of set pressure. Easy to read color coded psig / bar labels. Unique tamper resistant and staked adjusting screw. Repeatable performance. 100% factory tested. Temperatures Range -320 to +212 F. Set pressures range from 17-600psi. Ordering Information The PRV - series valves are ordered by specifying the basic relief valve part number and specifying with or without pull ring. PRV 250B R 350 Example: Series pressure setting This indicates a PRV250BR350 relief valve is a 1/4" valve with a pull ring set at 350. PRV Series also available with all stainless steel components. Ordering Information Part Number Specify Relief Setting “XXX” Pull Ring Brass 1/2 Stainless Steel Relief Setting Available in settings from 17-600 psi. WARNING: Inspection and maintenance of pressure relief valves is very important. Failure to properly inspect and maintain pressure relief valves could result in personal injuries or property damage. The useful safe service life of a pressure relief valve may be significantly affected by the service environment. Division of Engineered Controls International, Inc.

Relief Valves ARV SERIES Adjustable design to relieve liquid pressure above a predetermined setting. For use anywhere excessive pressure may harm system components. Features: • Space saving in line design. • Retaining ring prevents adjusting screw from being backed out too far. • Pop-off action does not “chatter” or “scream”. • Metal-to-metal seal assures long life. • Suitable for oil, water and steam. D Specifications: Operating Range Temperature Range CV Factor Orifice Diameter Materials: Body Spring Piston Ball Ordering Information: Part Number ARV250B Adjusting Screw Retaining Ring ASTM B16...