China Air compressor check valve just for you
purchase Air compressor check valve for all models.
Air compressor check valves are designed to keep high-pressure air in the receiver tank, so the compressor doesn’t fight against back pressure when it starts up. Faulty check valves can cause excessive wear on the motor and damage the pump.
Unlike lower-quality valves, BISON use a glass-filled fluoropolymer poppet for long term reliability. They are 100% tested at the factory for backflow leak performance to ensure proper operation.
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State-of-the-Art
Air compressor check valve
From finding top-notch equipment to enjoying excellent customer support, you can rest assured that our experts are by your side!
- Prevent Backflow
- Made from sturdy rust resistant brass
- BISON add a PTFE seal to prevent leakage
- BISON can process clear threads of check valves according to GB, ANSI, BS, DIN, ISO standards.
- Affordable air compressor check valve
- Offer sample testing to ensure the quality
A detailed guide for beginners to advanced customers
It’s time to learn about the air compressor check valve series that BISON offers you!
BISON provides high-quality and reliable solutions for all types of check valves, including various check valve shapes, sizes and pressure specifications, etc.
Check valve size: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 3″, 4″, 5″, 6″, 8″, 10″
Air compressor check valve function
The main function of an air compressor check valve is to allow air to flow in one direction while preventing air from flowing in the other direction. Once the air passes through the check valve, it cannot return in the opposite direction. The job of the check valve is to ensure that the correct pressure is maintained while other areas remain depressurized.
How air compressor check valves work
Air compressor check valves are very simple components. Although they can take many shapes and forms, the principles are mostly the same.
Inside an air compressor check valve, you’ll find a disc or ball and a spring that pushes the disc or ball down.
When the air flows in the “allowed direction”, it pushes the disc or ball. Since the spring is not very strong, the compressed air will cause the disc or ball to open. Result: Air can flow through the check valve.
Now, when the air tries to flow from the opposite direction, it pushes the disc or ball from the same side as the spring. Springs and compressed air work together! They push the disc/ball into its base, and no air can pass through it.
In fact, the higher the pressure, the harder it is to push the disc or ball into its seat, and the less likely it is that an air leak will occur.
Sometimes an air compressor check valve leaks at lower pressures and stops leaking at higher pressures. While this may seem strange, it’s easy to understand when you understand the inner workings of a check valve!
Signs of a damaged check valve
Leaking air is a sure sign of a bad check valve. This should be detected early to reduce downtime of the air compressor system. The air compressor can be tested by applying a specified amount of pressure on the check valve while it is active. If you notice any air leaks while the air compressor is dormant, it’s time for you to replace the air compressor check valve.
Backflow is also one of the most common signs of damage in check valves.
Another way to check the health of a check valve is to measure fluctuations in differential air pressure. The cause of these variations is the reverse airflow. This reduces air pressure and causes changes in operating pressure.
Important Considerations When Wholesale BISON Check Valves
Undersizing a valve can result in higher pressure loss and excessive noise and vibration, while an oversizing valve can lead to excessive valve leakage, premature wear and failure of the valve’s internal components.
Selecting the best air compressor check valve will ensure proper flow, optimize overall efficiency, and enhance the integrity and service life of any fluid handling system.
If you have any questions about the check valve size or are not sure which check valve you need, please contact BISON in time!
frequently asked questions about Air compressor check valve
What happens to the compressor when the check valve fails?
In addition to causing leaks, check valve failure can damage the compressor itself. If the check valve fails in its open position, it can cause air to leak from the header back into the compressor when the compressor is not running. This, in turn, causes the compressor to spin backwards, damaging it in the process. However, we often see check valves fail when closed. When this happens, a stuck valve can cause an uncontrolled increase in pressure, which can eventually cause the compressor to surge.
Why do air compressors need check valves?
Check valves are important to the efficient operation of an air compressor. Check the valves to make sure there are no leaks in the system through the compressor pump or the unloader valve. Air from the compressor can only go from the pump to the air receiver, and a check valve is used to ensure air doesn't flow in the wrong direction. The function of the check valve is to ensure that the air pressure in the system remains constant.
Where is the check valve installed in the air compressor?
The check valve is usually located as part of the pump head plumbing, although this can vary by the make and model of the air compressor. For example, check valves are placed within the piston head to control airflow in the compressor cylinder in reciprocating air compressors. A rotary air compressor, on the other hand, will have the check valve integrated into the intake valve.
How to test an air compressor check valve?
Testing that a check valve is functioning properly is a fairly simple technique. All you need to do is remove the check valve from the socket and remove any debris from it. Next, blow air via port 1's check valve. No air should be able to travel via ports 2 and 3 if it's functioning properly. If so, there is a problem with the check valve that needs to be addressed. Thorough and careful cleaning of the check valve will also help resolve any issues.
