Four-eccentricity double-way sealing butterfly valve
A two-way sealing and four-eccentric technology, applied in shaft seals, lift valves, valve details, etc., can solve problems such as affecting the sealing effect and service life of the valve, failing to achieve two-way sealing of the valve, and inconsistent deformation around the sealing ring, etc. Rigidity, uniform force, and the effect of reducing user costs
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[0016] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0017] Such as Figure 1~5 As shown, it includes valve body 1, groove platform 1a, valve plate 2, boss 2a, valve stem 3, pin 4, bushing 5, packing assembly 6, packing gland 7, packing pressure plate 8, screw rod 9, locking Nut 10, gasket 11, seal ring 12, pressure ring 13, hex bolt 14, plane bearing 15, bearing seat 16, retaining ring 17, bottom flange 18, adjustment pad 19, etc.
[0018] Such as Figure 1~5 As shown, a four-eccentric two-way sealed butterfly valve of the present invention includes a valve body 1, a valve plate 2, a valve stem 3, and a sealing ring 12. The valve plate 2 is installed in the valve body 1, and the valve stem 3 is rotatably arranged on the valve body 1. In the shaft hole, the valve plate 2 and the valve stem 3 are fixedly connected by the pin 4 to realize the synchronous rotation of the valve plate 2 and the valve stem 3. The val...
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