API Casting Gate Valve 1.Size:DN25-1000mm 2.Pressure: PN1.0-16 ... ,safety valves,ball valves,butterfly valves,diaphragm valves,mud valve ect.And it has complete inspection equipment, such equipments ... JB/T79.1~79.25.Pressure test of general valve: GB/T139276.Valve inspection and test: JB/T90927.Drivign manner: Spur ... protective property,suitable for the requirement of 24hour duty. API Casting Gate Valve