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1. Special rail ball valve for black water and gray water 2. Hydrogenation track ball valve 3. Special rail ball valve for the catalyst 4. LNG plant 5. ethylenel project
1 Low switching torque
2 Available for online repair
3 Prevent the middle cavity cup
4 Full pass diameter design
5 reliable seal
6 Inherent fire proof design
7 Zero leakage can be achieved
Structural Characteristics | Instructions |
---|---|
Hardening of the stem guide groove | when the stem switch, the guide groove will be subjected to a large load. Therefore, the guide groove needs to do the corresponding hardening treatment. |
Double stem guide pin | The hard stem guide groove and the stem guide pin cooperate with each other to lift and rotate the stem. |
Filler loading sealing | the packing place adopts the disc spring loading design, and the long-term sealing is more reliable |
Top type design | simplify the maintenance. |
Prevent leakage | the top assembly structure has less leakage points, the valve body valve cover is sealed with metal sealing ring, good sealing, and has fire prevention function. |
Single valve seat design | can realize the two-way sealing without closed middle cavity, to avoid the problems of middle cavity pressure and middle cavity cup. |
Switch without friction | because the rail ball valve sealing surface switch without friction, rotation is particularly easy, the service life is much greater than the conventional valve. |
Hard sealing surface of anti-wear valve core | according to different working conditions, the surface of the valve core is suitable for supersonic spray welding, which can meet the application in very demanding occasions. |
Mechanical wedge seal | The inclined plane at the lower end of the stem provides a mechanical wedge tightening force to ensure continuous tight sealing. |