1. The valve adopts a three eccentric sealing structure, with almost no wear on the valve seat and butterfly plate, and has the sealing function of tightening as you look.

2. The seal ring is made of stainless steel, which has the double advantages of metal hard seal and elastic seal. It has excellent sealing performance, corrosion resistance, long service life, etc. regardless of low temperature and high temperature.

3. The sealing surface of disc plate is made of hardfacing cobalt based hard alloy, which is wear resistant and has a long service life.

4. Quilting frame structure is adopted for large-sized butterfly plate, with high strength, large flow area and small flow resistance.

5. The valve has a two-way sealing function, and can be installed in any direction without the restriction of medium flow direction or the influence of space position.

6. The driving device can be installed in multiple stations (rotating 90 ° or 180 °) for the convenience of users.