Demco, part of the Cameron valve division was established in 1947. Demco is manufacturer of one of the most durable of all resilient-seated butterfly valves in the industry and the premier designed Gate Valve in the oil and gas drilling market, specifically engineered for the rigorous requirements of oilfield applications.
Sizes 2 to 12 in [50 to 300 mm] are available in both wafer and lug styles.
This series is a general-purpose valve with a neck length designed to provide full clearance for the valve top over 2 in of insulation on ASME Class 150 pipe flanges.
Butterfly-style DEMCO valves for marine applications are available in the NE-C lug, NE-I lug and wafer, NE-D wafer, and NF-C lug styles and conform to