... 2.Pressure:150-2500LB,PN6-25 Cast Steel Gate Valve 1.Size: NPS2"-24",DN50-600mm 2.Pressure: Class150 ... valves,ball valves,butterfly valves,diaphragm valves,mud valve ect.And it has complete inspection equipment, such ... DIN 3202 F4-F5, JIS B2002, ANSI B16.104) Flanged end: BS4504, DIN 2532, JIS B2212, ANSI B16. ... .The surface and the adjusting media of the valve shaft are nitrogenized so that it is erosion ...