5604-300 Henry Relief Valve Cast Iron Angle Type 1-1/4 FPT x 1-1/2 FPT 300 psi

Relief Valves in the types and sizes shown are constructed inaccordance with the requirements of the ASME. These valves arealso approved by many local refrigeration and air conditioningcodes in the USA and Canada for relief of excess pressure. Inaddition, these valves are stamped with ASME- UV symbol andNB to indicate National Board certification of capacities between150 P.S.I. and 450 P.S.I.Features:Bodies: 5600 Series, Ductile Iron; 5300 Series, Stainless Steel; 5200 Series, BrassSeat inserts, seat discs and main guides, piston stainless steel on 5600 seriesSeat material: Teflon® or NeopreneConnections: (NPTF) pipe threadedOther component metal parts are steelSet and sealed at the factory and furnished with nameplates stamped with catalog no., size, pressure setting, capacity and ASMEUV National Board symbolTemperature rating: -20°F (-28°C) to +160°F (+71°C)Protective lacquer finish on 5600 series*Suitable for ammonia, HFC’s and CFC’s, refrigerants and other industrial fluids non-corrosive to steel and Teflon as indicatedEach valve has unique serialization for tagging requirements