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At DELCO, we understand the importance of customer satisfaction and strive to meet the unique needs of every client. As a reliable valve supplier, we are committed to providing excellent customer service and high-quality products to ensure optimal performance and longevity. By choosing DELCO as your trusted control air supplier, you can benefit from customized valve assemblies designed specifically to meet your requirements, enhancing efficiency and reducing downtime.
Pneumatic Butterfly Valve: Principle and Maintenance
Pneumatic butterfly valve has the advantages of compact structure, good sealing and excellent adjustment performance. Correct installation and maintenance is essential to ensure its long-term stable operation. This article by DELCO Valve for you to introduce the working principle of pneumatic butterfly valve and maintenance methods.
Working Principle of Pneumatic Butterfly Valve
The installation of butterfly valve is very simple, only need to install the butterfly plate in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve, the disk-shaped butterfly plate rotates around the axis at an angle from 0° to 90°. When rotated to 90°, the valve is fully open. The butterfly valve has a simple structure, small size, light weight and few parts. It can be opened or closed quickly by only rotating 90°, which is simple to operate and at the same time can control the fluid well. When the butterfly valve is fully open, the thickness of the butterfly plate is the only resistance when the fluid passes through the valve body, so the pressure drop is very small, with excellent flow control characteristics.
Maintenance of Pneumatic Butterfly Valve
- Before installation, the pressure of the valve sign must be carefully checked, whether the diameter is in line with the use of requirements, to eliminate the defects caused by the transportation process, to eliminate the dirt of the valve parts.
- First of all, it should be clear that it is very important to keep clean when using pneumatic butterfly valve. It is recommended to check and maintain the pneumatic butterfly valve every 6 months, mainly checking whether the spool is clogged with debris, whether the operation is flexible and smooth, and whether the air source parts are clean and water-free.
- Rotating threads must be regularly lubricated, found faults, should immediately stop using, identify the cause of the failure, troubleshooting.
- Usually work to do a good job of the cylinder for the surface has a clean and cylinder shaft spring refueling, every 6 months can be regularly open the cylinder end cap to check the cylinder with or without debris and moisture, and grease condition. If the grease is lost or dry, please remove the cylinder for comprehensive maintenance and cleaning, and then add grease.
- Packing for gland bolts should be tightened evenly and should not be pressed into a crooked state to avoid bruising events impeding stem movement or causing leakage.
- When installing, the valve can be managed according to the connection can directly control the device on the pipeline. Generally in this case, can be installed in the pipeline for any different position, easy to operate the maintenance, pay attention to the medium flow should be longitudinal valve flap below upward.
- Pneumatic butterfly valve, can only be fully open or fully closed, not allowed to adjust the flow, so as to avoid erosion of the sealing surface, accelerate wear. If you want to adjust the flow, be sure to install a positioner so that you can adjust the flow. Gate valves and top threaded globe valves are equipped with inverted sealing device, the handwheel is rotated to the top position and tightened, which can prevent the medium from leaking from the packing.
- Pneumatic butterfly valves should be opened and closed through the handwheel, do not use levers or other management tools, so as not to cause damage to the valve parts. Clockwise rotation of the handwheel is closed, and vice versa is open.
- For valves that have been stored for a long time, they should be inspected regularly. Exposed surfaces of processed materials should be kept clean and dirt removed. When storing ball valves, it is necessary to block both ends and keep them open; while when storing pneumatic butterfly valves, it is necessary to block both ends of the channel and keep them closed. These valves should be neatly stored indoors in a well-ventilated and dry environment, and stacking or open storage is strictly prohibited.
About DELCO Valve
DELCO Valve, a renowned global player in the industrial sector, offers a diverse array of product lines encompassing electric actuators, pneumatic actuators, solenoid valves, and more. With close to two decades of experience, we harness our specialized knowledge to address challenges spanning across a range of industries such as food, beverage, chemical, water treatment, pharmaceuticals, natural gas, petroleum, and HVAC.
At DELCO, we understand the importance of customer satisfaction and strive to meet the unique needs of every client. As a reliable control valve supplier, we are committed to providing excellent customer service and high-quality products to ensure optimal performance and longevity. By choosing DELCO as your trusted control valve supplier, you can benefit from customized valve assemblies designed specifically to meet your requirements, enhancing efficiency and reducing downtime.
Furthermore, our competitive pricing on electronic pressure regulators enables you to offer top-notch solutions. As one of the leading control valve manufacturers, we take pride in delivering reliable valves that not only meet industry standards but also contribute to the overall profitability of your business. By partnering with DELCO, you can have peace of mind knowing that you are making a wise choice for the long-term success of your company.
