Fluorine lined check valve merchant explains the flange three eccentric multi-level hard seal butterfly valve. Do you know that

check valve The merchant explains the structural characteristics and working principle of the flange three eccentric multi-level hard seal butterfly valve:
The major difference between the flange three eccentric multi-level hard sealed butterfly valve and other butterfly valves is the adoption of a three eccentric design structure. The butterfly plate installation center and rotation center are designed with a rigorous eccentricity. When the valve is opened at 10 ℃ or even fully open, the sealing surface of the butterfly valve seat and the butterfly plate are in a non-contact state, and when closed, they are clamped Fluorine-lined Butterfly Valve The butterfly plate rotates with the valve stem and deflects into the sealing surface of the valve seat to make it sealed. Therefore, due to the lack of operation during the opening and closing process PTFE lined valve Extend the service life of valves without wear and tear.
The valve seat of Shanghai Guilong butterfly valve adopts an embedded O-ring or fluoroplastic as a sealing gasket to form a seal. Therefore, it has the function of self compensation for temperature difference and wear, ensuring the airtightness of Guilong butterfly valve without leakage.
When the fluid pressure in the butterfly valve pipeline is transmitted into the sealing groove of the valve seat, due to the principle of Posson's force distribution, the joint force generated by the expansion force of the O-ring and the sealing element under the pipeline pressure will push the sealing surface of the valve seat towards the butterfly plate and seal the valve. This sealing structure can generate greater sealing force with the increase of pipeline pressure.
The valve seat of the butterfly valve can be fine tuned. After a certain period of use of the valve, Fluorine lined DC globe valve When the sealing ring wears out on its own and leaks, it can be compensated and have the same sealing performance as a new valve by adjusting the sealing pressure ring in the direction of the butterfly plate to the required size with the adjusting screw without disassembling the valve.

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