Profile: A-C Valve Inc. design and manufacture virtually any configuration of fabricated knife gate valve or slide gate valve .They are designed to handle dense mixtures of stock and slurries. We are certified to weld many materials and alloys. We offer resilient seats, metal to metal seats, bonneted, or bonnetless knife gate valves in different sizes. Hard surfacing is available for seat, gate, and gate guides as well as inlet and outlet ports to provide longer life in tough abrasive applications. Enclosed brass stem bushing provides reduced operating torque and protection of the stem bushing from harsh environments.