https://www.utmostvalve.com/products/concentric-butterfly-valve/ China Concentric Butterfly Valve UTOMST, as one of the most professional concentric butterfly valve suppliers, has its own concentric butterfly valve factory and also offers affordable wholesale concentric butterfly valve price. In the well-known butterfly valve technology, its sealing form mostly adopts a sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. Due to the limitation of structural characteristics, it is not suitable for industries such as high-temperature resistance, high-pressure resistance, corrosion resistance, and wear resistance. An existing more advanced reliable butterfly valve is a triple eccentric metal hard-sealed butterfly valve, the valve body and the valve seat are connected components, and the sealing surface layer of the control valve china seat is welded with temperature-resistant and corrosion-resistant alloy materials. The multi-layer soft laminated sealing ring is fixed on the butterfly valve concentric plate.