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The Resilient Seated Butterfly Valve has a unique double eccentric structural design which effectively reduces the sealing to wear off and has long service life. 

The wide-angle seat is designed to avoid over-tightening of the seat and disc contact and provides longer service life.Two-stage high-strength stem structure ensures easy maintenance, and the double eccentric structure makes it easy to quickly maintain the valve seat and disc.Streamlined spherical flap with high flow coefficient.

Internal stem/valve drive prevents pin or bolt mounting from creating more leak paths.The flexible retaining ring provides compensating seat sealing pressure on the valve disc. It is not only simple in structure and light in weight, but also has small driving torque. It is easy and quick to operate, and has good flow regulating function and closed sealing characteristics.Stem seals pass high efficiency PTFE.