1.Valve desigh according to API594 Suitable for flange JB/T79,BS4504, DIN ANSI B 16.1, ANSI B 16.5 2.size:2"-36" 3.best price STANDARD PRODUCT PARTSNO.PartsMaterials 1BodyCast iron,Ductile IronWCB2DiscSS316,SS304WCB3StemSS316SS304 4SeatEPDMNBR5SpringSS316 6WasherSS316PTFE7PlugCarbon Steel 8Eye BoltCarbon Steel Zinc Plated Working Temperature Rating-20-120°C0-82FEATURESDual plate construction, ...