Our company's metal to metal bidirectional hard seal butterfly valve has the following characteristics;

1. Double eccentric self-centering structure is adopted.
2. Combined with the movable seat principle of fixed ball valve, it can guarantee the sealing performance of reverse pressure more effectively.
3. Replacing the conventional multi-level sealing ring with pure metal sealing ring, the pure metal sealing ring will not produce plastic deformation under high pressure conditions, and the sealing surface is not easy to be damaged when there are dust, particles or sundry objects in the medium, which solves the leakage caused by the insufficient rigidity of the traditional butterfly valve sealing pair.
4. Pure metal sealing pair greatly improves the ability of the sealing surface of the valve to resist rushing out.
5. The valve seat and butterfly plate seal ring are grinded with high precision to ensure its sealing performance.
6. We adopt the eccentric structure, so that in the process of opening and closing, there is no friction between the butterfly plate and the valve seat, no jam, with the sealing function of the more closed the tighter, eliminating the uneven load between the sealing pair, greatly extending the service life of the valve, and truly achieving the two-way pressure close to 100%