A four-eccentric butterfly valve and sealing ring
A sealing ring and four eccentric technology, applied in the direction of engine sealing, valve lift, valve device, etc., can solve the problems of large sealing surface wear, shortened service life, large valve leakage, etc., to ensure leakage and prolong service life Effect
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[0036] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0037] Such as Figure 4(a) , (b) and (c) are schematic structural diagrams of a four-eccentric butterfly valve according to an embodiment of the present invention. The four-eccentric butterfly valve includes a valve body 1, a valve seat 2, a valve stem 4, a disc plate 3 and a sealing Ring 5, the valve body has a valve channel 6, the valve seat 2 on the valve body is arranged on the outside of the valve channel 6, the disc plate 3 is arranged in the valve channel 6, and the disc plate 3 is installed with The sealing ring 5, the valve stem 4 is connected with the disc plate 3, and is used to drive the disc plate to rotate, so that the disc plate drives the sealing ring to contact the valve seat in a state, thereby closing the valve. The sealing ring is cl...
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