Triple eccentric

The valve utilizes a triple offset structure and has no friction with seat during the process of 90º full travel operation Torque sealing instead of position sealing is adopted to achieve bi-directional sealing with long term stability. It can meet zero leakage
All-metal sealing structure is adopted and the requirements on leakage class are higher than those of API 6D and API 598 on metal sealing valve.

The butterfly valve design and unique sealing elements provide zero leakage through non-rubbing 90-degree rotation across a wide range of pressure and temperature conditions.
On the basis of preserving primary radical eccentric and axial eccentric, the axis of conical seal surface has been inclined with the center of valve flow path to form angle eccentric. The tri-eccentric butterfly valve is characterized by compact structure, effective handle and long work life. It can be widely used in oil & Gas, chemical, petrochemical, power station, metallurgy, textile, food, pharmaceuticals.