puristusventtiili

A puristusventtiili, also known as a pinch valve, is a type of valve used to control or stop the flow of a fluid. It functions by squeezing a flexible tube or sleeve, thereby restricting or completely blocking the passage of the fluid. This mechanical action is typically achieved through a lever or a screw mechanism that applies pressure to the exterior of the flexible material.

The primary advantage of a puristusventtiili lies in its simplicity and reliability, especially when dealing with abrasive, corrosive, or sensitive fluids. Because the valve body does not come into direct contact with the fluid, there is minimal wear and tear, and the fluid itself remains uncontaminated. This makes them ideal for applications in industries such as chemical processing, food and beverage production, water treatment, and pharmaceuticals.

Puristusventtiilit are available in various designs, including manual and automated versions. Manual valves are operated by hand, while automated valves use actuators, such as pneumatic or electric motors, for remote control and integration into larger systems. The flexible sleeve material is chosen based on the specific fluid and operating conditions, with options like rubber, silicone, and PTFE being common. The sealing mechanism is inherent in the way the sleeve is compressed, creating a tight shut-off. They are particularly useful for slurries and suspensions where conventional valves might clog or be damaged.