Normative reference
BS 1873 Steel Globe and Globe Stop and Check Valves (Flanged and Butt- Welding Ends) for the Petroleum, Petrochemical and Allied Industries
ASME B16.34 Valves Flanged, Threaded and Welding Ends
ASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 through 24
ASME B16.47 Series A Large Diameter Steel Flanges: NPS 26 Through NPS 60 Metric/Inch Standard
ASME B16.25 Buttwelding Ends
ASME B16.10 Face to Face and End to End Dimensions of Valves
MSS SP-25 Standard Marking System for Valves, Fittings, Flanges and Unions

Size available
NPS 2 to NPS 36 (DN50 to DN900)

Pressure rating available
Class 150 to Class 2500