The rubber pinch valve is a common component of many laboratory equipment and medical instruments. Its primary function is to isolate flow media from the surrounding environment. This allows the flow media to be kept safe and reduces contamination. This device is often used to isolate blood, reagents, and other media. It can also be used in laboratory instruments, such as medical analyzers.
A rubber pinch valve sleeve can be used in a variety of applications. The sleeve is designed to minimize wear and tear on pinch valves. Its full-port design allows for unobstructed flow and improves control. Additionally, its elastomer construction absorbs abrasive particles and reduces wear.
Pinch valve sleeves are produced using a variety of manufacturing processes. They are fabricated using either a manual winding process or a conventional injection process. They are also designed to have the precise diameter and length. The design and construction of a pinch valve sleeve is crucial for the valve to operate effectively and last a long time. Depending on the intended application, different elastomers are used. They also come in a variety of sizes.
Air-operated pinch valves
Air-operated rubber pinch valves are a versatile piece of valve equipment. These devices are used to control flow rate of liquids, gasses, or solids. They are available in different pipe sizes and connection materials. They have good chemical and physical properties. They can be easily replaced, and their maintenance cost is low.
These valves are ideal for regulating and isolating fibrous and abrasive products. They need a minimum pressure difference of 2 bars to operate. They have high rebound elasticity. Their body design helps them close and seal tightly. Once the pressure is removed, the valve completely shuts off the product flow.
Manual pinch valves
Manual rubber pinch valves have a simple design with straight flow, no gland, and an elastomeric sleeve. The sleeve is flexible and resistant to corrosion and abrasion. It is incorporated with a mechanical part and can withstand a high number of openings and closings. Manual rubber pinch valves come in various sizes and are available in a wide range of elastomers.
These valves are suitable for handling slurries, semi-liquid liquids, and corrosive fluids. However, look what i found they are generally limited to low pressures, and should be tightly closed to prevent leakage flow. They are available in pressure-actuated and mechanically-actuated versions. A mechanically-actuated pinch valve can be more efficient in handling slurries, since the valve sleeve does not come into contact with the flow. Mechanically-actuated pinch valves are not ideal for high-pressure or high-temperature applications.
RVA series pinch valve
RVA series rubber pinch valves have a patented extension shaft. This patented design allows the pinch valve to effectively compensate for large bending and tensile forces. These valves conform to ASME B16 and DIN 3205 standards, and are available in natural rubber, EPDM, and Viton. They are suitable for a wide range of bulk materials and temperatures up to 80degC. In addition, the RVA series rubber pinch valves are able to meet food safety requirements.
These valves are designed for various applications requiring a reliable, cost-effective flow control solution. Air-operated pinch valves are operated by air or hydraulic pressure on the elastomer sleeve. The valve body acts as a built-in actuator, allowing the flexible rubber sleeve to close the drop tightly around solids. Full closure of the valve requires approximately 25 psi over line pressure.