Z41H manual gate valve flange
The main characteristics and the use of manual wedge type gate valve flange
1, compact structure, reasonable design, good rigidity, smooth channel, small flow resistance coefficient.
2, the sealing surface of stainless steel and hard alloy, long service life.
3, the use of flexible graphite packing plate, reliable sealing, flexible operation of the light.
4, drive sub-manual, electric, pneumatic, gear transmission, structure form; elastic wedge type with single valve, rigid wedge single valve and double disc type.
5, widely used in petroleum, chemical, power plants and other oil, water, steam pipe on the opening and closing device to connect or disconnect the line of medium.
Manual wedge type flange gate valve design, manufacturing standards
1, design and manufacture according to GB/T12234-89
2, the length of the structure by GB/T12221-89
3, the flange connection size: JB/T79-94
4, the valve inspection and test according to GB/T13927-92