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All the pressure, and the flange is made of high-quality alloy steel forgings, non-destructive Ultrasonic Flaw detection and sec

1, and all the pressure, and the flange are made of high-quality alloy steel forgings, and with no damage flaw detection, and ensure security. 

2, gate valves, valve seat and the needle valve, the valve stem in heap (fuel injection) solder alloy.

3, the main part is the special heat-treated, with a good anti-sulfur performance. Sealing elements 4,

4 together with fluoride, and fluorine Rubber anti-sulfur material.

5, simple structure, light in weight, reliable work. At KQ anti-sulfur unit gas wellhead unit can be used for sulfur and sulfur gas wells would not, it can also be used for wells and injection wells.