A rubber pinch valve is a type of valve that is used to control the flow of media. These types of valves are widely used in industries such as the cement, glass, electronics, and food industries. The advantages of pinch valves are their safety and economy.
The basic components of a pinch valve are the rubber sleeve, the body, and the end connections. The rubber sleeve is the main part of the valve and is responsible for closing it. The sleeve is constructed from a variety of materials, such as NBR (nitrile), natural rubber, and silicone. The material should be durable and resistant to abrasion and wear. The pinch valve sleeve should also be able to handle the temperature of the media.
The pinch valve sleeve is the only part of the valve that comes into contact with the media. The sleeve is compressed at the center of the valve and is held down by the pressure of the fluid. As a result, it will close tightly every time.
The pinch valve is an economical solution to controlling the flow of media. The pinch valve pinch valve is a great choice for a variety of applications, including the production of aluminum and steel, cement, and mineral processing. It is also ideal for processes that have entrained solids. In addition, pinch valves offer a high degree of reliability, and are easy to use.
A rubber pinch valve sleeve is usually hand-built. It is manufactured to the size and length required for the valve. A pinch valve sleeve is often made from several layers of fabric or rubber, and is fitted into the housing from inlet to outlet. A lubricant paste is then applied to the sleeve. This prevents fouling of other parts. It is also an excellent corrosion resistance.
Pinch valves are a good option for handling abrasive and corrosive fluids. They are known for their exceptional ability to stop the flow of abrasive media. Unlike other types of valves, the pinch valve does not damage the media. Moreover, they provide 100% tight shut off.
Pinch valves are ideal for heavy-duty applications, such as iron and steel production, or those that are subjected to corrosive or abrasive fluids. They have a long service life and low wear. A pinch valve will also prevent blockages. It can be easily cleaned, which helps to keep down maintenance costs.
A pinch valve will require the proper control pressure to ensure a long lifetime. It is recommended that the control pressure is more than the operating pressure. This is so that the pinch valve can maintain a tight shut-off throughout the lifespan of the pinch valve.
A pinch valve sleeve can be changed periodically to keep it in good condition. However, pinch valve sleeves are not compatible with vacuum applications, which can cause the pinch sleeve to collapse. This is because suction can exacerbate the pinching process.
The pinch valve sleeve can be replaced in just a few simple steps. When it is time to replace the pinch sleeve, it is important to choose the right elastomer. A variety of elastomers are available, including butyl, neoprene, PTFE, and EPDM.