Before the air from the compressor goes through the pipe network to reach the actuator, it needs to go through small openings in the pressure reducing valve and control valve. When dirty or wet air is used, the parts might not work right and something could go wrong. So, to make sure no dirt or bad stuff enters the control machine, a special filter is put in place for the air that's squeezed.
Dirt and rust can get into the air compressor and mix with the compressed air. This can make the machines not work as well if the dirt and rust get stuck in the valves. Also, the air that goes into the machine gets squeezed and pushed out through a cooler and storage area. When it gets cold, moisture in the air turns into rain or snow. Some water gets into the control circuit and parts even though most is removed by the after-cooler. This causes rust, corrosion, and washes away the lubrication. When we use compressed air, it can have bad oil mist in it. This mist can stick to parts that slide and mix with other dirt to make sludge. This sludge gets in small gaps and stops the machine from working well.
Air filters clean the compressed air and make it more dependable for controlling machinery. Usually in power circuits with control valves and actuators, filters that separate and clean are used. If you need to get rid of all the oil mist, you should use an oil mist filter. You can use a filter to remove bacteria and bad smells from medicine, food, and other important occasions.
Lingyu Machinery - moisture removal coalescing compressed air filter