Large caliber hydraulic double eccentric double flange butterfly valve is a double flange connection. The valve body material can be selected from stainless steel, carbon steel, duplex steel, etc., and can be operated by worm gear, electric, pneumatic and other methods.
Double eccentric butterfly valve 
The double eccentric multi-layer metal hard sealed butterfly valve series products are long-life and energy-saving butterfly valves. Its structure adopts the principle of three-dimensional weaving, and the valve seat adopts a multi-level structure compatible with soft and hard seals, with advanced technology and exquisite processing. This product consists of main components such as valve body, butterfly plate, multi-layer valve seat, valve stem, and transmission mechanism.
Double eccentric butterfly valve Double eccentric multi-layer metal hard seal butterfly valve is widely used for medium temperature<; Pipelines for water conservancy, metallurgy, electricity, petrochemicals, air, gas, and water supply and drainage media at 650 ℃. Used to regulate flow and cut off fluids. Reliable sealing performance. The direction of extension and development of universal butterfly valves towards medium pressure and medium high temperature fields.
Due to the dual dimensional eccentric principle design of this butterfly valve, the sealing surface space trajectory is idealized, and there is no friction or interference between the sealing surfaces. In addition, the optimized configuration of sealing materials ensures the sealing performance of butterfly valves. Corrosion resistance, high temperature resistance, and wear resistance are reliably guaranteed. Its main characteristics are as follows.
Small opening torque, flexible and convenient, labor-saving and energy-saving. The three-dimensional braided core structure makes the valve disc more compact, with reliable sealing performance and achieving no leakage. High pressure resistance, corrosion resistance, wear resistance, long service life, etc.