Flanged hard seal butterfly valves have the following characteristics:

1. The butterfly valve sealing ring is a laminated metal sheet of soft and hard layers, which combines the advantages of both metal hard sealing and elastic sealing. It has excellent sealing performance at both low and high temperatures.
2. It adopts a three-dimensional eccentric structure, with almost no friction between the valve seat and the butterfly plate, and has a self-tightening sealing function.
3. The sealing surface of the valve body is welded with stainless steel and cobalt-based hard alloy, which is wear-resistant and has a long service life.
4. It has a unique structure, is flexible and easy to operate, and is not affected by the high or low pressure of the medium. The sealing performance is reliable.
Structural features of wafer butterfly valve
1. The unique three-way eccentric design enables friction-free transmission between the sealing surfaces, extending the service life of the valve.
2. Torque generates elastic sealing.
3. The ingenious wedge design gives the valve an automatic self-tightening sealing function, with compensatory and zero leakage between the sealing surfaces.
4. It is compact, lightweight, easy to operate, and convenient to install.
5. It can be equipped with pneumatic or electric devices according to user requirements to meet the needs of remote control and program control.
6. By changing the material of the parts, it can be used for various media and can be lined for corrosion resistance (lined with F46, GXPP, PO, etc.).
7. Continuous structure diversification: wafer, flange, and butt welding.