Water-Seal Gate Valve / Water Valve
Design and Manufacture GB12234 or GB3595
Face to face/End to end dimensions to GB12221
Pressure-Temp Rating GB9131 or JB/T74 or HG20604
Flange dimensions to JB/T74~90 or 9113 or HG20592~20635
Inspection and Test to JB/T9092 or GB13927