Bi-directional sealing elastic tri-eccentric butterfly valve
An elastic sealing and two-way sealing technology, which is applied in shaft sealing, lifting valves, valve details, etc., can solve the problems of uneven deformation, uneven force around the sealing ring, and difficult problems, so as to achieve small friction and torque, and reduce User cost, effect of extending service life
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[0021] The present invention will be further described below in conjunction with specific drawings.
[0022] Such as Figure 1 ~ Figure 5 As shown, the two-way sealing elastic sealing triple eccentric sealing butterfly valve mainly includes lock nut 1, screw 2, packing gland 3, packing group 4, packing pad 5, valve body 6, pressure ring 7, elastic sealing ring 8, cross groove sink Head screw 9, bushing 10, spiral wound gasket 11, hexagonal bolt 12, bottom flange 13, thrust ring 14, direct selling 15, valve plate 16, valve stem 17, non-metallic sealing ring 18, backing ring 19 and other components .
[0023] The thrust ring 14 is installed between the valve body 6 and the valve plate 16. The valve plate 16 is installed in the valve body 6, aligned with the center of the shaft hole of the valve body 6, and is positioned in cooperation with the thrust ring 14 through the upper and lower surfaces of the back shaft housing. The valve plate 16 and the valve stem 17 are connected and...
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