Conval offers Swivldisc® Gate Valves in ½" through 4" sizes. The valves feature a wedge gate design that employs a flexible disc. This disc permits the seating surface to achieve perfect alignment and establishes a tight seal that is not possible with standard wedge gates. The valves are available in ASME / ANSI Pressure Classes through #4500. Standard materials of construction are carbon steel and chromoly. Other materials are available upon request. Options include bypass, air or motor actuators.