A rubber pinch valve is a type of pressure valve that is used in the application of fluids. Its body is usually made of natural rubber or elastomeric sleeve. The sleeve comes into contact with the moving fluid, and must be highly resistant to abrasion. Some common materials used in pinch valves include EPDM, NBR, silicone, and food-grade rubber. A pinch valve’s material should also be suitable for the temperature and pressure differentials of the application.
Natural rubber sleeve
Natural rubber is the standard material for pinch valve sleeve manufactures. Its superior tear strength, rebound resilience, and durability guarantee the longest possible life. This type of sleeve is suitable for high-pressure, high-temperature, and corrosive applications. However, its lifespan depends on the fine details of the application. Correct pressure control can increase its lifespan.
The high performance and reliability of this type of valve makes it an excellent choice for abrasive and corrosive fluids and media. Its centralised closure prevents blockages and leaks. This type of valve also guarantees 100% tight shut-off, with no calibration or maintenance required.
Air-powered pinch valves
An air-powered rubber pinch valve is a versatile valve that navigate to this site seals off product flow with minimal pressure loss. Air-powered pinch valves have an elliptical design that minimizes compressed air consumption and ensures complete sealing. They can be used for a variety of applications and are available in a variety of materials.
Air-powered pinch valves are ideal for regulating and isolating fibrous, abrasive and corrosive materials. They are also suitable for applications where explosion-proof protection is required. The simple structure makes air-powered pinch valves suitable for a variety of applications. These devices are ideal for controlling flow problems and are often found in pharmaceutical, food, pneumatic conveying, ceramic, and plastic industries.
Enclosed-body pinch valves
Closed-body rubber pinch valves are designed to control flow in a process. They are typically constructed of a molded sleeve of rubber or synthetic material. The body of the valve contains the pinching mechanism. The rest of the operating parts are located outside the valve and are not in contact with the media. The body is reinforced with fabric. The liner of the valve has smooth walls, which prevent turbulence and line vibration. This design also allows for bubble-tight shutoff. Unlike some other types of valves, this style of valve does not require packing material.
Choosing the proper type of pinch valve is important. Types include internal and external types. Generally, external pinch valves feature a single wetted substance, whereas internal ones often feature multiple wetted substances and incorporated tubing connectors. These types of valves are more difficult to modify, and can be more costly.
Stainless steel pinch valves
There are several different types of pinch valves for rubber applications. Most of them feature a rubber sleeve that is designed to resist wear due to corrosive or abrasive media. The sleeve can be made of a variety of materials, including natural rubber, EPDM, butyl, or nitrile. Some types are even made of aluminum or plastics. Regardless of their material, pinch valves are a convenient way to control the flow of a variety of fluids and mediums.
Pinch valves can be used in a variety of processes, including chemical, acid, and viscous fluids. A variety of materials is used to make these valves, and some of them are a better choice for specific applications than others. For example, a high-performance pinch valve may be made of stainless steel. In addition, it’s designed to be maintenance-free and abrasion resistant.