How the Double Eccentric Butterfly Valve product works

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Sep 17,2021

Double Eccentric Butterfly Valve is also called high-performance butterfly valve. It is mainly used for drainage of water plants, power plants, steel smelting, chemical engineering, water source engineering, environmental facility construction, etc.especially suitable for water pipelines, as regulation and interception equipment. . Compared with the centerline butterfly valve, the Double Eccentric Butterfly Valve is more resistant to high pressure, has a longer life and good stability.

good price and quality Double Eccentric Butterfly Valve For sale
The working principle of Double Eccentric Butterfly Valve products:
The Double Eccentric Butterfly Valve is further improved on the basis of the single eccentric butterfly valve. Its structural feature is that the axis of the valve stem deviates from the center of the butterfly plate and the center of the body. The double eccentric effect enables the butterfly plate to be released from the valve seat immediately after the valve is opened, which greatly eliminates unnecessary excessive extrusion and scratching between the butterfly plate and the valve seat, reduces the opening resistance, reduces wear and improves The life of the valve seat is improved. The large reduction in scratching also allows the Double Eccentric Butterfly Valve to use metal seat, which improves the application of the butterfly valve in the high temperature field.
The seat material of the Double Eccentric Butterfly Valve is made of tetrafluoroethylene, which can effectively prevent corrosion. In addition, a metal sealing seat can also be used to adapt to the high temperature environment. However, the Double Eccentric Butterfly Valve adopts metal sealing valve seat. The sealing surface of the butterfly plate and the valve seat is in line contact. The seal is a positional sealing structure. This sealing structure cannot withstand high pressure. If used in high pressure conditions, it will produce a lot of Leakage, so do not use the Double Eccentric Butterfly Valve with metal sealing valve seat in high-pressure working environment or systems requiring tight shut-off.
Double Eccentric Butterfly Valve is used in water supply and drainage, sewage, construction, petroleum, chemical industry, textile, papermaking, hydropower, metallurgy, energy and other fields.

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