ASME B16.5 - Pipe Flanges and Flanged Fittings: NPS 1/2 through 24
ASME B16.10 - Face to Face and End to End Dimensions of Valves
ASME B16.20 - Metallic Gaskets for Pipe Flanges: Ring-Joint, Spiral-Wound, and Jacketed
ASME B16.25 - Buttwelding Ends
ASME B16.34 - Valves Flanged, Threaded and Welding End
BSI Standards
BS 1873 - Specification for steel globe and globe stop and check valves (flanged and butt-welding ends) for the petroleum, petrochemical and allied industries
BS 2080 - Specification for face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of valves
BS 5152 - Specification for cast iron globe and globe stop and check valves for general purposes
BS 5154 - Specification for copper alloy globe, globe stop and check, check and gate valves
BS 5160 - Specification for steel globe valves, globe stop and check valves and lift type check valves
BS 5352 - Specification for steel wedge gate, globe and check valves 50 mm and smaller for the petroleum, petrochemical and allied industries