Triple Eccentric Butterfly Valve. The valve utilizes unique triple eccentric structure. Zero friction will emerge between the valve plate and the sealing ring. It processes in a line-plane-contact way, and is a typical double valve seat structure.

The valve disc and seat of high performance butterfly have a unique structural design. It has reliable sealing, excellent performance and long service life. Standard soft sealing valve seat uses a flexible lip seal ring structure to handle change of temperature and pressure, and there is no need to increase O-ring or metal pad ring to keep sealed; at the same time the valve also has fire-resistant soft sealing valve seat and hard sealing valve seat, widely used in various working conditions.