A triple eccentric butterfly valve is an advanced butterfly valve that uses metal hard sealing, which can adapt to high temperature and high-pressure environments. It is widely used in metallurgy, steel, electric power, petroleum, chemical industry, heating, air supply, combustible gas municipal water supply, etc. as a stop or regulating medium flow valve. Its unique design eliminates the rubbing between the seat and seal ring, which reduces cycle damage and extends the valve life. In addition, the absence of cavities between sealing components allows this valve to operate more frequently and quickly than traditional ball and gate valves, which are subjected to clogging by debris in their lining.

The angled position of the shaft in relation to the valve seat ensures that the sealing surface only contacts and compresses the seat during closing, and not during opening. This prevents seat damage and sticking and binding of the disc to the seat and significantly lowers operating torque.

Maintenance and Troubleshooting Tips for Triple Eccentric Butterfly Valves

This patented design also eliminates the problems associated with soft-seated valves, including galling, scratches, and wear between the metal seat and butterfly valve body. Its compact design and low torque requirement allow it to be installed with smaller actuators than other types of butterfly valves, reducing everything from weight and the need for additional piping bracing to operation and maintenance costs.

The sleeve and valve seat are constructed with multiple layers of corrosion-resistant alloy steel on both sides to provide a continuous, durable sealing surface. In addition, the seat inserts are pressed into place and welded to the valve body, creating a hard-faced, non-wearing seal that is superior to any conventional butterfly valve.