Standards compliance
Design and Manufacture: ANSIB16.34,API 6D,BS1868
Face to face(end to end): ANSIB16.10,API 6D
Flanged connection: 2~~24~to ANSIB16.5
Butt welded end: ANSIB16.25
Test and inspection: API 598,API 6D
Pressure Sealing Swing Check Valve