Product Description

Two-way all-metal hard-sealed butterfly valve is a high-performance valve developed by our company on the basis of the three-eccentric butterfly valve to solve the problem that the ordinary three-eccentric butterfly valve can not achieve two-way zero leakage. Fundamentally change the sealing structure, is no longer a tight seal seal, but a torsion seal, mainly rely on the torsion extrusion of the seal specific pressure to achieve the sealing effect; In the sealing structure, when the positive and negative flow of the medium is realized, the medium pressure can partially act on the sealing surface, and the sealing pair can achieve bi-directional zero leakage, high temperature and high pressure resistance, wear resistance in the operation of the valve, thus extending the use of the valve.