Butterfly Valves

Acclaimed as one of the most durable of all resilient-seated butterfly valves in the industry, Demco butterfly valves excel in a wide variety of applications. Cast in both wafer and tapped-lug patterns in a wide variety of material choices, Demco butterfly valves feature a one-piece body for reduced weight and increased strength. The unique stem-hole design in the disc ensures a dry stem journal, and the hard-backed seat allows ease of installation, reliable operation, and is field-replaceable without special tools.