Technical features：

1.Valves of increased wall thickness,can carry high voltage

2.Forging valve body structure,better carrying pipeline pressure

3.Fixed ball structure,low open torque

4.Set pressure relief sewage hole

5.Designed to replace the bottom bracket system

6.Unique two-way double seal structure,the composite quadruple sealing system

7.Corrosion,erosion,high temperature,anti-aging,easily deformed

8.Stem anti-blowout structure

9.Stem for the four complex sealing system can replace the complex sealing system