Design & manufacture
API STD 623 Steel Globe Valves—Flanged and Buttwelding Ends, Bolted Bonnets
API STD 602 Gate, Globe, and Check Valves for Sizes DN 100 (NPS 4) and Smaller for the Petroleum and Natural Gas Industries
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 EN ISO 15761 Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and natural gas industries
ASME B16.34 Valves - Flanged, Threaded, and Welding End
End Connection
ASME B16.5 Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/Inch Standard
ASME B16.47 Large Diameter Steel Flanges NPS 26 Through NPS 60 Metric/Inch Standard
ASME B16.25 Buttwelding Ends
ASME B1.20.1 Pipe Threads, General Purpose (Inch)
ASME B16.11 Forged Fittings, Socket-Welding and Threaded
MSS SP 44 Steel Pipeline Flanges
Face-to-Face, End-to-End
ASME B16.10 Face-to-Face and End-to-End Dimensions of Valves