High performance butterfly valve is a new type of butterfly valve designed based on the advantages of several different structural butterfly valves. The sealing surface of the valve plate of this butterfly valve is a spherical arc body, and the sealing mechanism achieves a true dynamic seal through system pressure, thus having excellent cutting performance and durability. It has a small volume, light weight, wide manufacturing range, and is easy to maintain and repair. 1. High performance butterfly valve, with soft seal and dual seal design, ensures zero leakage performance of the valve. 2. High performance butterfly valves enable 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, and reducing the opening resistance torque Reduced wear and improved valve seat lifespan. 3. The valve seat design adopts different non-metallic materials according to different customer requirements to meet different working conditions, and can also use a dual seal of soft seal and metal seal to make the valve fire-resistant Safety characteristics. 4. High performance butterfly valve, with an external blocking anti blow valve stem that is safe and reliable, in compliance with API 609 regulations.