British Standards Institute

BS1414 Steel wedge gate valves (flanged and butt welding ends) for the petroleum, petrochemical, and allied industries

BS1868 Steel check valves (flanged and butt welding ends) for the petroleum, petrochemical, and allied industries

BS1873 Steel globe and globe stop and check valves (flanged and butt welding ends) for the petroleum, petrochemical, and allied industries

BS5352 Steel wedge gate, globe and check valves 50 mm and smaller for the petroleum, petrochemical, and allied industries

International Organization for Standardization

BS-1414-STANDARD-GATE-VALVE

BS-1873-Standard-
Globe-Valve

BS-STANDARD-CHECK-VALVE