Product : Cast Steel Piston Valve Pressure/Class /Rating : Class-150 Body Material Cum Standard : C.C.S. (ASTM A-216 Gr. WCB) Product Description : Bolted Bonnet O.S. Yoke Type Rising Stem Type of Seat : Renewable Type of Wedge : Piston Type Trim : AISI-410 End Details : Flanges as per ASME B 16.5 Class-150 (APS Marines & Logistics) Testing & Certification Body Test Pressure : 30 Barg (435Psig.) Hyd. Seat Test Pressure : 22 Barg (350Psig.) Hyd.