Three eccentric butterfly valve which three eccentric

The sealing performance of the traditional hard seal butterfly valve is not guaranteed, and the leakage is large. In order to change this situation, the hard seal butterfly valve has been reformed for many times, and the three eccentric butterfly valve has been born. Three eccentric butterfly valve is characterized by high temperature and corrosion resistant alloy material surfacing in the seat sealing surface layer, the multi-layer soft laminated sealing ring is fixed on the butterfly plate, such a process makes the three eccentric butterfly valve more resistant to high temperature and high pressure environment than the traditional butterfly valve products, more corrosion resistance.

Specifically, the advantages of the hard seal butterfly valve using three eccentric structure are:

The unique design of three eccentric, so that the metal hard seal begins to save labor, valve in the opening and closing, the butterfly plate in the process of rotation and the valve body no friction, when the valve is closed, the torque of the transmission mechanism can provide a compensation seal, greatly improve the sealing performance of the three eccentric butterfly valve, while extending the service life of the butterfly valve.

Three eccentric butterfly valve which three eccentric?

The first eccentricity is that the valve shaft is located behind the plate shaft, allowing the seal to be completely tight around the entire seat.

The second eccentricity is when the centerline of the valve shaft deviates from the centerline of the pipe and valve to avoid interference from the opening and closing of the valve.

The third eccentricity is the deviation of the seat cone shaft from the center line of the valve shaft, which eliminates friction during closing and opening and provides an even and consistent compression seal around the entire seat.