A pinch valve is a type of valve that controls the flow of a fluid by pinching a flexible tube or sleeve to restrict or stop the flow. The valve typically consists of a housing with an inlet and outlet port and a mechanism to squeeze or pinch the flexible tubing or sleeve shut. This action effectively controls the flow of the fluid through the valve.

Pinch valves are commonly used in industrial applications where the fluids being handled may contain solids or slurries, as they are less prone to clogging compared to other types of valves. They are also suitable for handling corrosive or abrasive fluids since the flexible tubing or sleeve can be made from materials resistant to these conditions.

Pinch valves can be actuated manually, pneumatically, or electrically, depending on the specific requirements of the application. They find use in various industries such as mining, wastewater treatment, chemical processing, pharmaceuticals, and food and beverage production.