Whether you need manually or pneumatically controlled butterfly valves for pipeline installation or preassembled valve manifolds, the Waukesha Cherry-Burrell 200 series from SPX FLOW is the answer. These are a robust and reliable shut-off element with a long service life. Butterfly Valves offer great durability, economy and ease of use for a wide range of applications. Easy to install and maintain, butterfly valves close under pressure to form a leak-tight seal, plus have the ability to throttle flow with a positioner.