Company offers Swivldisc® Gate Valves in ½” through 4” sizes. The valve features 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 product is available in ASME/ANSI Pressure Classes through #4500. Standard materials of construction are Carbon Steel 216 GR WCB , Chromalloy SA-271 GR WC9, SA-217 GR C12A and SA-351 CF3M. Other materials are available upon request. Options include bypass, air or motor actuators.