Gate Valves

Our gate valves are designed to conforming API Spec.6A.

The feature of design:
They are sealed by metal-to-metal between bonnet and body. The bonnet and stem designed with back seal machinery and secondary seal machinery, which are easy for replacing stem sealing under pressure on spot. The seal surface of valve board and valve seat is welded overlay with hard alloy, which have features of corrosion resistance and washing resistance. The balance stem can balance the stem load, reduce load of stem thread and bearing to decrease operating torque.


    • Flange Type
      • Thread Type
    • Clamp Type
Star Zirconia Ceramic Liners are available for all major mud pumps with various bore sizes.
Comparing to regular sleeved liners, our Zirconia liners offer:
Significant longer service.
Better performance.
Safer operation.
Life time cost saving.