The NPV Series Pinch Valve is a solenoid-operated device that is designed to open and close tubes for controlling flow of liquids and gases. Other valve types have internal passages that may cause small amounts of fluid to remain in the valve. Pinch valves have no areas or dead volume where fluid can become trapped. Only the inside of the tubing contacts the fluid. Our pinch valves are typically used in applications where the media needs to be completely isolated from any internal valve parts or entrapments, they are commonly used in medical, laboratory, clinical and chemical analyzer devices.