... ,reliable quality,ISO certified,used in various pipeline systems.3 piece float ball valve,oil pipeline valve:Design & manufacture standard: API6D ... for NPS24, ASME B16.47A/MSS SP-44 for NPS>24.Butt-welding end dimensions: ANSI/ASME B16.25.Inspection & test ... ~PN160 or JIS 10K ~ JIS 40K.Nominal diameters: 1/2~ 24 or DN15~DN600.Major materials: WCB, WC1, WC6, WC9, A105 ...