Butterfly valves are disc-type flow control valves, used to throttle or isolate liquid and gas flow in piping systems. Contractors, chemical processors, water treatment plants, HVAC and industrial OEMs rely on durable butterfly valves made of PVC, ductile iron or specialty materials for corrosion resistance and long service life. Our clearance range includes multiple sizes, face-to-face styles (wafer, lug), and material options. Expect industrial-grade reliability, full functional performance, and savings on stock inventory.