Double Offset Butterfly Valves

A double offset butterfly valve is a high-performance rotary valve featuring an eccentrically mounted stem and disc that minimizes seat friction to deliver a reliable, long-lasting shutoff. By offsetting the stem from both the bore centerline and sealing face, the disc contacts the seat only at the final point of closure, significantly reducing operating torque and expanding service life under elevated pressures and temperatures. Available in wafer, lug, and fire-safe configurations with chemical-resistant PTFE or rugged metal seats, these valves offer superior throttling and bi-directional sealing for steam, hydrocarbons, and process fluids. As a distinguished platform representing multiple China butterfly valve manufacturers, we supply precision-machined double offset valves in ANSI Class 150 and 300 LB—designed to minimize maintenance expenses while maximizing operational efficiency for global industrial pipeline networks.