API Casting Gate Valve 1.Size:DN25-1000mm 2.Pressure: PN1. ... ,WC6,CF8,CF8M,CF3,CF3M API6D ISO9001 Through Conduit Gate Valve 1.Size:DN25-1000mm2.Pressure: PN1.0-16 ... effectively Specification:1.Pipeline valve: API6D,API6002.Steel flat gate valve for pipeline: JB/t52983.Pipe flange and flange ... fully opened,the valve's channel is smooth and linear,with an extremely small flow resisting coefficient and no ...