Double-disc gate valves continue to be the most commonly used control mechanisms for on-off service in water distribution systems, pumping stations, filter plants, and tapping service, as well as steel mills, coke ovens and gas-by-products.

Three designs are available-Round Bottom Valves, Square Bottom Valves and Slimline Valves-in sizes ranging from 14" to 84" in diameter, with pressure ratings from 50 psi to 375 psi. All are manufactured to meet or exceed requirements of the latest A.W.W.A. C500 specifications.

Many Slimline Valves are specifically designed for isolation valves on the suction side of pumps, with short flange to flange dimensions and clean out ports as standard. Square Bottom Valves are employed for throttling service on the discharge side of pumps.