1)Valve has self-clean function,and flexible of open and close
2)As seal and valve axis has certain eccentricity,so it has long longevity.
3)Double-side  sealing can be installed any direction without the control of medium flow
4)The valve have resistant to high temperature,corrosion resistance

Purpose:
 The product are widely used in fuel gas,chemical, heating,metallurgy and paper making and so on.