The structural feature of the double eccentric butterfly valve is that the valve stem axis deviates from the center of the butterfly plate and from the center of the body. The double eccentric effect allows the butterfly plate to quickly detach from the valve seat after the valve is opened, greatly eliminating unnecessary excessive compression and scratching between the butterfly plate and the valve seat, reducing the opening distance, lowering wear, and improving the service life of the valve seat. Mainly suitable for water supply and drainage systems in water plants, power plants, steel mills, papermaking, chemical industry, catering, etc., especially suitable for water supply pipelines.

High-performance butterfly valve key core technology using a unique dynamic load seal PTFE valve seat design, elasticity, high reliability; no need to add O-rings or metal parts to maintain the seal; lip sealing structure can compensate for changes in temperature and pressure; long service life, small maintenance; sealing test, bidirectional to achieve no bubble leakage.

Eccentric structure description eccentric one, stem rotation centerline and seat centerline deviation from a certain distance, to ensure the integrity of the sealing cover; eccentric two, stem rotation centerline and body centerline deviation from a fixed distance, to reduce the friction between the sealing vice when the valve opens and closes. iso5211 connecting disc bare stem can be equipped with connecting disc; dynamic load packing system; stem and butterfly plate connection; self-lubricating bushing; fireproof structure and design; valve seat Types; Easy seat maintenance; Bidirectional sealing design; Anti-blowout stem design.