Double eccentric elastic metal seal butterfly valve has excellent double eccentric structure sealing performance, the use of hard and soft materials matching seal vice, free choice of seal ring installation location, free installation direction and other features. Double eccentric soft seal butterfly valve is two-way pressure-bearing, two-way metal seal, special structural form can be arbitrarily adjusted sealing pressure, the use of eccentric S-shaped tapered seat sealing surface, so that the sealing surface is not easy to damage and improve the service life of the valve. The operating torque is small, turning 90 degrees to open and close, light and fast. The flow resistance is small, with good hydraulic characteristics, the flow characteristics are similar to the inclined straight line, energy saving effect is good, two-way seal has no direction requirements on the water flow.
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