Size: NPS 1/2"-12" Pressure: Class 150-300 Material: WCB,LCB,CF8,CF8M,CF3,CF3M Design & Manufacture Std.: API 608,API 6D,BS 5351,ASME B16.34 Face to Face Std.: As Per Manufacturer's Standard End Connection Std.: ASME B16.5,DIN 2543-2546 Test Standard: ISO5208,API 6D,BS 6755 Structure Type: T-Type,L-Type Operated Way: Lever,Gear,Pneumatic,Electric