Saturday, March 12, 2011

Structural characteristics of the track ball valve

 Switch no wear: Ball deviate from the seat after the rotation, eliminating the friction with the valve seat to solve the traditional ball valve, gate valve, plug valve seat wear problems.

     Single-seat design: the static single-track valve seat, can protect the bi-directional zero leakage, avoiding double-seat cavity pressure increases problems.

     Wear a hard sealing surface spool: spool sealing surface layer of cemented carbide surfacing and polishing, to meet the media in a very demanding sealing occasions.

     Pairs of stem-oriented marketing: Stem-oriented groove along a rigid guide pins slide smoothly control the stem of the movements and rotation.

     Mechanical wedge tight power: stem lower end of the cam slope, which provides a mechanical wedge tight force, in order to ensure continuous spool pieces closely aligns with the seat edge.

     Upload design: In the system, pressure relief, the available on-line inspection and repair, so that simplified maintenance.

     Within the leakage detection: Valve to design a special device, available on-line detection of leakage within the valve.

     Low-torque operation: Due to the track ball valve sealing surface without friction, rotation torque is small, except large size need to gear the outside world, can be equipped with a small gear.

     The best flow characteristics: full-path and standard diameter have a high Cv value, reducing the pressure drop along the pipeline, so that the problem reduces wear and tear to a minimum.

     Self-Cleaning: When the spool deviate from the valve seat, the media, along the sealing surface of a 360-degree movement of the medium, washed clean of impurities.

     Can be injected into sealing grease: In the operation can be maintained, will inject grease through the grease seal device implantation, complete control will be valve to prevent leakage.

     Long life: Track ball valve can be easy to replace those Sealing failure of ordinary ball valve, gate valve, globe valve, plug valves. The unique characteristics of the track ball can be effective in reducing the device failure rate, greatly reducing the user's use, maintenance costs. 

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