What is Eccentric Butterfly Valve?

An eccentric butterfly valve is a type of valve used to control the flow of fluids in a piping system. Unlike a traditional butterfly valve, which has a symmetrical disc that rotates around a central axis, an eccentric butterfly valve features an off-center, or eccentric, disc. This design provides a tighter seal and greater durability, making it especially useful in demanding marine environments.

How Does it Work?

Eccentric butterfly valves operate by rotating a disc within the valve body. The eccentric design means the disc is offset from the centerline of the valve and the pipe, creating a cam-like motion as it closes. This motion compresses the seal, providing a bubble-tight closure with minimal wear on the valve components.