Triple Eccentric Butterfly Valve refers to the third eccentricity of butterfly valve. The application scope of the Triple Eccentric Butterfly Valveis wider through the design process modification. Not only has good sealing performance, but also has the characteristics of high temperature and high pressure resistance. These characteristics all come from the unique structure of the Triple Eccentric Butterfly Valve. How much do you know about the structure and principle of the Triple Eccentric Butterfly Valve? Now let's get together and find out.

The three three parts of the Triple Eccentric Butterfly Valve refer to:
First eccentricity: The valve shaft is located behind the disc shaft, enabling the seal to fully encircle and contact the entire seat.
Second eccentricity: the axis center line deviates from the pipeline and valve center line, which is free from the interference of valve opening and closing.
Third eccentricity: the seat cone axis deviates from the center line of the valve axis, which eliminates friction during closing and opening, and achieves uniform compression sealing around the entire seat.
Triple Eccentric Butterfly Valveerfly valve ingeniously placed the tri-eccentricity on the valve plate, and adopted part of the outer spherical structure at the outer edge of the valve plate. The structure needs a simple fixture designed by ourselves to complete on the NC machine tool. The outer eccentric spherical surface is polished to Ra0.4 roughness. The spherical surface is chromium plated or stacked with Starley alloy, and the hardness reaches HRC 45-60.
The eccentricity angle is placed on the valve plate and the valve seat is pressed on the valve body with a pressure ring, which solves a series of problems encountered in the processing of ordinary tri-eccentricity butterfly valve, such as the non-interchangeable use of valve body, valve plate and valve seat, the high maintenance cost after damage, modularization of all parts, simple warehouse management, simple processing and convenient maintenance. Reduce the cost of spare parts.
Triple Eccentric Butterfly Valveerfly valve is suitable for making large caliber valves. It can be widely used in oil pipeline cut-off, metallurgical steel plant, gas main pipeline regulation and cut-off, medium regulation and cut-off of chemical smelting equipment, water treatment equipment input and output regulation cut-off, cooling water system of thermal power station, natural gas, alkali, seawater, acid, etc. In the industry.
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