ASME B 16.10 Alloy Steel Valves SpecificationStandards : API 600/BS1414, API 598/BS EN 12266-1, ASME B 16.10, ASME B 16.5, ASME B 16.25, ASME B 16.34Size : 1/8†to 16â€Rating : S150#,300#,600#,800#,1500#.End Connection : Screwed [NPT], Socket Weld, Flanged End, Screwed Parallel, Screwed Taper