Two-way metal hard sealing butterfly valve with a new type of "oblique elliptical disc radial dynamic balance of the seal structure" to reliably achieve the metal seal butterfly valve positive and negative two-way seal zero leakage, in particular, meet the requirements of reverse sealing high conditions, is true With the world's leading high-tech new products.

High-performance bidirectional metal seal butterfly valve is widely used in metallurgy, hydropower, thermal power, heat, urban water supply and drainage, farmland irrigation and drainage and other industries, the applicable medium for gas, steam, air, water, etc., in the pipeline system for interception or connectivity media .

Bidirectional metal seal butterfly valve structure

Bidirectional hard sealing butterfly valve Features:

Two-way metal hard sealing butterfly valve is mainly composed of valve body, butterfly plate, valve shaft, valve body sealing ring, disc sealing ring, sleeve, self-lubricating bearing and driving device. It has the following features:

1. Unique structure, small and light, easy to operate

2. Using three-dimensional eccentric structure, butterfly plate, seat sealing surface machining precision. Disc at the moment of opening, the sealing surface completely separated; disc in the process of closing almost no friction, close and light. With the more off the more tight self-locking function, self-sealing performance, sealing performance is stable and reliable;

3. Sealing pair (butterfly plate sealing ring - valve body sealing ring) is made of stainless steel and is specially treated with the advantages of both metal sealing and elastic sealing. It has the advantages of corrosion resistance, wear resistance, high temperature resistance and long service life.

4. Adopted the "radial dynamic balance of the seal structure" design, the butterfly valve opening resistance is extremely small and reliably achieve the butterfly valve import and export two-way seal zero leakage. During the opening and closing process, the sealing surface of the disc along the 360 ​​° circle can be quickly and instantly completed quickly and accurately to achieve the sealing action of closing the contact automatically.

5. Butterfly streamlined design, with high strength, large flow area, small flow resistance, energy saving;

6. Reliable bi-directional sealing is the first choice in the pipe system that requires a bi-directional cutoff, which is independent of the flow of media and is not affected by space and can be installed in any orientation.

New and old sealing butterfly valve structure comparison

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