[Essential information]
Electric globe valve opening and closing parts are plug shaped valve, sealing surface flat or cone, fluid along the centerline of the valve for linear motion. Stem movement in the form of lifting rod (stem lifting, hand wheel not lifting), but also lifting, rotating rod type (hand wheel with the valve stem to rotate up and down, nut on the valve body). The electric valve is only applicable to fully open and fully closed, does not allow for adjustment and throttle.
[Standard parameter]
Design standard | GB12235 |
Structural length | GB12221 |
Flange dimension | GB9113 JB79 HG20592-20635 |
Pressure temperature rating | GB9131 JB/T74 HG20604 |
Pressure test | GB/T13927 JB/T9092 |
[Valve features]
1, Compact structure, reasonable design, good rigidity of valve, smooth channel and small flow resistance coefficient.
2, The sealing surface is made of stainless steel and hard alloy, and the service life is long.
3, Flexible graphite packing, reliable sealing, easy and flexible operation.
4, Drive manual, electric, pneumatic, gear transmission, structure type: single flexible wedge gate, rigid wedge type single gate and double gate type.
5, Widely used in petroleum, chemical, thermal power plants and other oil products, steam pipes to connect or cut off the medium in the pipeline opening and closing device.
[Adaptive condition]
Electric globe valve, the valve seat sealing surface by the iron-based alloy surfacing or Stellite (Stellite) surfacing cobalt based alloy, wear resistance, high temperature resistance, corrosion resistance, good anti abrasion performance, long service life, suitable for nominal pressure PN1.6 ~ 16MPa, various pipeline working temperature of -29~550 ℃ for petroleum and chemical industry, pharmacy, chemical fertilizer, power industry and so on, cut off or connected piping media. Driving methods are manual, gear drive, electric, pneumatic and so on.