A pinch valve is a pressure-assisted or air-operated valve with a natural rubber sleeve. The service life of these valves is largely determined by the inner bushing, which is subjected to continuous load tests by manufacturers. These tests are performed to ensure the quality and service life of the product. This ensures an optimally controlled inner bushing, which can prolong the service life of the valve several times.
Natural rubber sleeve
A pinch valve replacement sleeve is a simple, low-cost replacement for the original pinch valve. The sleeve is the only wearable part of the valve and the process of replacing it is simple, too. Using a pinch valve fitting kit or lubricant paste, you can easily install a new sleeve. AKO makes a wide variety of pinch valve sleeves ranging from 10mm to 300mm in nominal bore.
These sleeves are available in a variety of materials and are multi-layered or fiber-reinforced. Each sleeve has unique characteristics that make it suitable for certain applications. For example, neoprene sleeve is highly resistant to mild chemicals and dilute solvents, which makes it perfect for food applications. On the other hand, natural rubber sleeve is suitable for use in a variety of applications ranging from waste water and metals to abrasive liquids and slurries.
The sleeve is the most important part of a pinch valve, as it is the only part that comes in contact with the media. Consequently, it is important to choose the right one for the application. The sleeve should be designed for the particular application, and have a high safety factor. To ensure high durability, the sleeve should be ply-reinforced with multiple layers of material.
Pressure-assisted pinch valve
When choosing a pinch valve, you must determine the maximum operating temperature and the minimum operating temperature. Another factor that you should consider is air pressure. The pressure of the flow medium and the pressure used to generate the pinch effect must be different. The investigate this site control pressure must be lower than the operating pressure, usually 0 bar, or less. Otherwise, the rubber sleeve will be unable to open.
This type of valve works by allowing the external pressure to open the valve and the pressure of the flowing media to close it. This helps prevent the valve from clogging and allowing the medium to flow freely. Another benefit of this type of valve is its low maintenance and low energy consumption. The process of replacing a pinch valve is simple and can be performed by company personnel without special tools.
This type of valve can handle a wide variety of fluids. The components of a pinch valve include an elastomeric rubber sleeve and a pinch bar mechanism. Pinch mechanisms can be simple or complex and can pinch both sides of a tube. Mechanical mechanisms are also used.
Air-operated pinch valve
A versatile and reliable tool, an air-operated rubber pinch valve can regulate or isolate flow of fibrous and abrasive products. The valve is operated by air, which ensures that it closes and seals completely over the contact area. Its design makes it easy to open and close. It can also handle a variety of fluids, and is available for use in food-grade applications.
The air-operated pinch valve has no mechanical parts to wear out. A standard air supply of between two and six bars can be used to activate the valve. The air squeezes the sleeve to open and close the valve. This ensures the flow of product without any leaking. The pressure range of air-operated rubber pinch valves depends on the size of the valve and the sleeve elastomer used.
Pinch valves are used for isolating fibrous, corrosive, and gaseous products. They are also useful for controlling the flow of compressed air, powder, and gas. They also eliminate the need for pneumatic actuators.