Knife gate valves are a type of shutoff valve used in a wide range of industries. They are designed to isolate thick fluids, wastewater, and slurries. The knife gate has a sharp edge that is designed to cut through the fluid or material being isolated.

A knife gate valve is used to shut off flow for highly viscous liquids or liquids with a high solids content. In general, this is achieved with a thin metal blade, known as a “knife,” that is moved into the closed or open position either manually or automatically with an actuator.