BOLTED LENGTHEN BONNET,Threaded or welded seat ring Full bore,OS&Y,Rising stem,Flexible wedge Pressure relief hole on seat Stainless trim ASTM A352 LCB,LC1,LC2,LC3,LC4 A351 CF8,A351 CF8M
Standards compliance Design and Manufacture: API 600,API 6D,BS1414 Face to face (end to end): ANSI B16.10,API 6D Flanged connection: 2~~24~to ANSI B16.5 Butt welded end: ANSI B16.25 Test and inspection: API 598,API 6D