Soft Seal Butterfly Valve

A soft seal butterfly valve (resilient seated butterfly valve) is a compact, lightweight quarter-turn rotary valve featuring a concentric disc that seals against a flexible, elastomeric body liner to achieve absolute bubble-tight shutoff. The internal seat liner is typically molded from high-grade polymers like EPDM, NBR, or PTFE, which dynamically compress against the disc edge to completely eliminate low-pressure leakage. Because the resilient liner fully encapsulates the internal body cavity, the process media never makes direct contact with the outer valve shell, reducing the risk of internal corrosion. Civil infrastructure contractors and HVAC utility engineers can eliminate low-pressure leaks and optimize project cost-efficiency by importing certified soft seal butterfly valves directly from premier manufacturers in China via our advanced B2B commercial platform.