Product : Dual Plate Wafer Check Valve Pressure Rating : PN-25 Body Material cum Standard : CI IS 210 Gr. FG200 Pressure Description : Wafer Type Spring Loaded Type of Seat : EPDM Rubber Lining Type of Disc : SS 304 (CF-8) Trim : Spring & Pins SS End Details : Wafer type suitable for clamping between flanges as per ASME B 16.5 Class-150 Testing & Certification Body Test Pressure : 3.8 MPa Hyd. Seat Test Pressure : 2.7 MPa Hyd. (APS Marines & Logistics)