BS 1873 Standard specifies requirements for cast or forged carbon and alloy steel outside screw and yoke globe and globe stop and check valves. ...
BS Standard
BS 1868: Steel check valves (flanged and butt-welding ends) for the petroleum, petrochemical and allied industries
BS 1868 Standard specifies requirements for cast or forged steel check valves with flanged or butt-welding ends check valves. ...
BS 5351: Steel ball valves for the petroleum, petrochemical and allied industries
BS 5351 Standard specifies the valve seat and body pressure/temperature ratings, and the design, including materials, dimensions, operation, performance, testing and marking, of straightway steel ball valves having specified wall thickness, an antist ...