Are butterfly valves sanitary?
Yes. Sanitary butterfly valve designs use a single eccentric structure, and the soft seal is different from the middle section. The butterfly valve disc is installed in the pipe diameter direction. In the butterfly valve body’s cylindrical channel, a disc-shaped butterfly plate rotates around the axis with a rotation angle from 0° to about 90°, making the valve move from fully closed to fully open, and vice versa.
The body and disc of the Sanitary butterfly valve are built with high-precision CNC lathe processing. Sanitary butterfly valves are compact, lightweight, and use a simple composition with only a few components. Using a butterfly valve is simple and convenient; the disc only needs to rotate 90° to be able to open and close quickly and provide dependable fluid control characteristics. A health-grade pneumatic butterfly valve should maintain a fully open position, the disc thickness provides the medium flow through the valve body, and thus the pressure drop caused by the small valve has good flow control characteristics. The Sanitary butterfly valve has two types of seals — a ballistic seal and a metal seal. An elastic seal valve can be embedded in the valve body or attached to the disc around.
