Pressure Rating: 3 PSIG•OAD (LxOD): 1.795” x 0.745”•¼” Connections•Construction Material: Polypropylene•Autoclavable at up to 120 Degrees C for 100 15-minute cyclesMATERIAL: WHITE POLYPROPLENE HOUSING WITH HOSE BARB CONNECTIONS.The pressure relief valve is a cartridge check valve incorporating an innovativeGuided poppet design. This valve is the heart of the system & may be used aloneOr as the central component of the system. The valve has low pressure drop.Description: relief valves are used to prevent flow of fluid (gas or liquid)In one direction & allow flow in the other direction.The material is BASF ultraform, an acetal co-polymer as standard resinBecause of its strength & chemical resistance. The poppet is made ofStantoprene from advanced elastomer systems, and has a similar chemicalResistance to EPDM.