The rubber pinch valve is a type of control valve that is used for regulating the amount of liquid in a container. It comes with an inner liner made of natural rubber or nitrile rubber. It is suitable for a variety of bulk materials and is temperature resistant up to 80 degrees Celsius. In addition, it is safe for use in food industries. Depending on its application, it may also come with a fluoro-rubber, nitrile rubber, or silicone resin inner bushing.
Natural rubber sleeve
The sleeve of a pinch valve is the primary component. It is made of an elastomer, such as natural rubber or EPDM. It provides abrasion and corrosion resistance and also provides pressure containment. The quality of the sleeve determines the durability and performance of the pinch valve. The Red Valve Sleeve offers superior performance, durability, and design.
This rubber pinch valve pinch valve sleeve is made of natural rubber and can withstand up to six bar of pressure. It is a pneumatic valve with a light natural rubber sleeve and a powder-coated aluminum housing. Pressurized air is fed into the valve and the sleeve compresses to create a tight seal.
Pinch valves come in different sizes from 25mm inside diameter to 200mm inside diameter. They are used in corrosive slurries and solids handling applications. The rubber lining protects the steel valve against abrasion and erosion. These valves can also be used for food-grade applications.
Metal body
A pinch valve is a valve that closes over the contact area. These valves can be used for a wide range of fluids. Some are suitable for food-grade applications, while others are designed for a wide range of chemicals. In addition, pinch valves are corrosion-resistant and abrasion-resistant. They also do not clog and are maintenance-free. A pinch valve’s structure determines its cycle frequency and closing and opening characteristics. There are various types of elastomer available for these valves, each with its own unique set of qualities and applications. Choosing the right type of elastomer is essential for a pinch valve’s longevity and anti-abrasion properties.
Metal body for rubber pinch valves may be installed without gaskets, but for some applications, gaskets must be installed. Once in place, the valve flanges should be evenly tightened, but not overtightened. Once the valve is installed, it is ready for service.
Extension shaft
The extension shaft of a rubber pinch valve is a cylindrical component that extends from the actuating ring. The shaft is surrounded by two opposing faces that overlap one another. The extension shaft provides a spring return force opposite to the fluid drive force. This spring is usually arranged coaxially with the valve member or as an axial extension of the actuating ring. The spring is preferably located on the side of the valve member opposite the drive space.
The inner liner is made of an all-purpose elastomer. This elastomer is generally suitable for handling bulk materials and temperatures up to 80 degrees Celsius. It may also be made of silicone resin, nitrile rubber, or a combination of these materials.