... Bolted Bonnet,Flanged Ends,Rising Stem. China Valves Cast Steel Electric Gate Valve,Bolted Bonnet,Flanged ... manufacture standard: API6D, API600, API603, ANSI/ASME B16.34, ISO10434.Face to face dimensions: ANSI ... /ASME B16.10.Flange connection: ANSI/ASME B16.5 for NPS24, ASME B16.47A/MSS ... for NPS>24.Butt-welding end dimensions: ANSI/ASME B16.25.Inspection & test standard: API6D, API598 ...