Pneumatic vacuum valve is a compact but highly effective device for many automatic production lines, typically robotic arms, suction, transportation and lifting of products. So the structure and principle pneumatic vacuum How? What are the advantages, disadvantages and applications of this device in life? All information about pneumatic vacuum valves will be compiled and sent to you by Tan Long in the article below!
Detailed structure of pneumatic vacuum valve
Vacuum valve is constructed in the form of a tube with the following parts:
- Vacuum valve body: Made from high-quality plastic or aluminum alloyThe valve body is usually tubular in shape and has a narrowing point.
- Compressed air supply port.
- Exhaust Port: The exhaust port on some valves may be located on the valve body, while the remaining body is constructed as a silencer.
- Vacuum port.
- Quick connectors and hose fittings.
Complete vacuum kit includes vacuum valve, suction cups and vacuum nipples. Depending on the requirements of the production system and the type of material to be vacuumed, two or more vacuum suction units can be used together.
Principle of pneumatic vacuuming
Pneumatic vacuum valve works using the principle Bernoulli and effects Venturi. The specific operating principle of the pneumatic vacuum valve is described as follows:
- Inside the intake valve is a vent shaped like a nozzle. This nozzle has a cross-section that narrows towards the middle, then widens towards the exhaust. This narrowed cross-section creates a bottleneck at the diffuser opening.
- Immediately following the compressed air supply port will be another suction port. This suction port will connect to the location where vacuuming is required.
- The Venturi effect is based on Bernoulli's principle of energy conservation. This principle demonstrates the inverse relationship between kinetic energy and pressure. As the velocity of a liquid or gas increases, its pressure decreases, and vice versa.
- Compressed air is used to create the Venturi effect. The initially high-pressure compressed air is converted to velocity as it passes through the vacuum valve, creating a low-pressure zone. A vacuum is created around the intake port and for any connections made across these low-pressure zones.
Advantages and disadvantages of pneumatic vacuum valves
Advantage
These devices are popular and well-reviewed with many outstanding advantages as follows:
- Simple structure, compact size: This type of pump has no moving or rotating parts inside like other vacuum pumps. This increases reliability, minimizes damage, and requires less frequent maintenance during use.
- Easy to move and install: Thanks to its unique structure, the pneumatic vacuum valve is easy to install and connect to the system.
- Cost savings: This device uses compressed air, which helps reduce operating costs and utilizes readily available compressed air resources.
Disadvantages
Despite the aforementioned advantages, pneumatic vacuum valves still have some drawbacks. The vacuum pressure generated by this device is not as high as that of compressed air and does not reach the same depth as oil-sealed or water-sealed vacuum pumps. Therefore, pneumatic vacuum valves are only suitable for applications requiring relatively low vacuum pressure. They are somewhat limited in applications requiring high pressure and strong suction.
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Common applications of pneumatic vacuum valves
Foot pump Non-pneumatic suction cups are used in a wide variety of manufacturing fields today. They are often used with vacuum suction cups to serve industries such as packaging, wood, plastic, glass, sheet metal and electronics.
Below are some specific applications of the device. pneumatic vacuum This:
- Used to select and place packaged products in bags.
- Open and transfer the plastic bag.
- Transfer the slide to pack the product.
- Lifting and transporting products: Vacuum pumps use compressed air to suck, hold and move products, helping to ensure stability and safety during transportation.
- Use in robot arms: Pneumatic vacuum valves are integrated into robot arms to perform operations such as transportation, assembly and support manufacturing operations in factories.
- Used in metal forming technology: Bending, drilling and cutting metal.
Above is important information about the operating principle of a vacuum cleaner using compressed air. With the knowledge shared, Tan Long hopes that customers have enough information to choose the pump product that suits their needs. If you have any questions, please comment below. Tan Long help you answer!
