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1. Natural gas gathering and transmission pipeline 2. Natural gas receiving (transfer) station 3. Flammable and explosive medium conveying pipeline
1 Zero leakage
2 Reliable sealing
3 Long service life
4 Low switching torque
5 fire-protection design
Structural Characteristics | Instructions |
---|---|
Fully welded structure | the fully welded structure has light weight and compact structure, eliminating potential leakage channels |
Anti-blowing valve stem | upper packing function structure to prevent the valve stem from blowing out, can realize online replacement of filler. |
Packing loading and sealing | the packing place adopts the disc spring loading design, and the long-term sealing is more reliable. |
Stem seal | use low leakage packing (through API 622 certification), O-ring, emergency fat injection seal at the stem for multiple seals, with more reliable seal. |
Double group thrust pad design | it can reduce the valve torque, prevent the valve from stuck after using for a long time, and prolong the service life of the valve. |