Butterfly valves use a rotating circular vane to control flow. There are several styles of butterfly valve, including flange butterfly valves and lug butterfly valves. Butterfly valves are available in compact configurations, and have a high coefficient of flow. Their drawbacks include the fact that they can be difficult to clean. These valves can be manufactured from a large variety of materials, so you can purchase butterfly valves made from plastic, ceramics, stainless steel and PVC.
Butterfly Valve Manufacturers
Crane Valves - Center Line Resilient Seated Butterfly Valves, Flowseal High Performance Butterfly ValvesVelan Valves - Torqseal Butterfly Valves, featuring bidirectional, bubble tight shutoff (eliminates friction during opening and closing).
Norris Valves - Easily repaired, bidirectional, bubble-tight valves for use in wellhead, loading racks, manifolds, tank farms, distribution systems, aviation fuel systems, and abrasion applications
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