Butterfly valve
A butterfly valve and valve body technology, which is used in lift valves, valve devices, engine components, etc., can solve the problems of easy corrosion and poor sealing performance of butterfly valves, and achieve strong corrosion resistance, good application prospects and good sealing effect. Effect
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[0016] The present invention will be further described below in conjunction with the drawings. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.
[0017] Such as figure 1 As shown, a butterfly valve includes a hollow valve body 1, a valve shaft 2 that vertically penetrates the valve body 1, and a valve plate 3 sleeved outside the valve shaft 2, and the valve plate 3 is driven by the valve shaft 2. The valve body 1 is rotated to realize the opening and closing action. The inner surface of the valve body 1 is provided with a ceramic gasket 4 arranged along the circumference of the valve body 1, and the outer peripheral side of the valve plate 3 is provided along the valve plate 3. The ceramic sealing plate 5 is arranged in the circumferential direction. The ceramic sealing plate 5 is provided with a groove 6 arranged along the circumference ...
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