... :WCB,WC6,CF8,CF8M,CF3,CF3M API6D ISO9001 Through Conduit Gate Valve 1.Size:DN25-1000mm2.Pressure: PN1.0 ... equipment, such equipments as Fire Safe Test Device of through Loyd’s, Cryogenic Test Device, Torque Test System ... of it,grease gets into the sealing face through the injector and the seat ring to have ... the pipeline can be cleaned with hair-ball through it.7.Automatic removal of tne high prssure ...