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What are the consequences of air compressor not releasing water for a long time?

2026-04-09Views:

Air compressor does not discharge water for a long time, what effect will it have?

If the water is not released, it will increase the water content in the compressed air, affect the gas quality, and affect the gas equipment at the back end; the oil and gas separation effect becomes worse, the pressure difference of the oil and gas separator becomes larger, and it will also cause corrosion of the machine parts.

How is water produced?

When the air compressor is working, the internal temperature of the head is very high, and the moisture in the natural air inhaled will form water vapor during the operation of the air compressor. The air storage tank can not only provide a buffer and storage space for compressed air, but also reduce pressure and cool down. When compressed air passes through the air storage tank, the high-speed air flow hits the wall of the air storage tank to generate confluence, which makes the temperature drop rapidly in the air storage tank, so that a large amount of water vapor is liquefied and condensed water is formed. If you catch up with wet weather or winter, more condensation will form.

When is the general drainage?

Regularly discharge condensate or install automatic drainers according to the specific use environment and working conditions. Mainly depends on the humidity of the inhaled air and the outlet temperature of the air compressor.

Introduction of automatic drainer

the automatic drainer is used to automatically drain the condensed water at the lower part of the pipeline, the oil-water separator, the gas tank and the bottom of various filters. Can be installed in the inconvenience of artificial sewage, such as high, low, narrow place. It can also prevent the artificial drainage from being forgotten and cause the compressed air to be re-polluted by the condensed water.

Working principle of automatic drainer

there is an air bottle <equivalent to a balloon> in the automatic drainer. Under the action of air pressure, the air bottle blocks the water outlet.

Water accumulates in the drain. After reaching a certain water level, the buoyancy is greater than the air pressure, the air bottle floats up, the drain is opened, and the water is discharged under the action of air pressure. At the same time, the buoyancy decreases, and the air bottle drops to block the drain.

Electronic and physical automatic drainers

the automatic drain is electronic and physical. The principle of the electronic drain is: the opening and closing of the electromagnetic valve can be adjusted by setting the switch on the automatic drain.

The physical drain is to rely on the buoyancy of the buoy in the drain to open the drain. The liquid level in the drain rises, the buoy rises, and the valve opens automatically.

Electronic automatic drainer

the electronic automatic drain valve matches the solenoid valve with the solid-state electronic timer of the analog circuit to realize the timed automatic discharge of condensed water in the compressed air system. Widely used in screening programs, separators, dryers, air storage tanks, drip feet and other compressed air system components, discharge time and interval time can be adjusted according to different needs of discharge time and interval time.

Automatic drain installation steps

step 1: What you should do before you start installation is to clean up the compressed air system. This step is very helpful for our later installation.

Step 2: When you install it, you should pay attention to the specific direction of the arrow above the valve body on the machine, and the water outlet must not be connected with a hose that is not resistant to airflow impact. You will not be allowed to find that your water cannot be drained after you have completed the installation and started to use it for a period of time. At this time, this hose should be detached.

Step 3: Note that the voltage you connect to the automatic drain should be the same as the rated voltage on the automatic drain, probably, but it should not be too low or higher, at most it should be less than or equal. If you use direct current, the positive pole you connect to must be connected to the connector "1" on the automatic drain.

Step 4: If the drainage valve has been connected when leaving the factory, then we should understand that the brown wire on the automatic drain is the live wire L, the wire is the zero wire N, and the yellow-green double color is the ground wire GND that needs to be connected after we complete the installation.

Step 5: In order to prevent the long screw on the junction box from entering water and burning, we must tighten the long screw well. Here, some tips are given for the installation of the automatic drainer. The power supply must be disconnected before installation, and the compressed air must be completely emptied, that is, the automatic drainer is under zero pressure at this time.

In fact, the installation method of the automatic drainer is not particularly complicated. It mainly lies in understanding some installation common sense before installation. After knowing these common sense, I believe the installation of the automatic drainer is no longer so difficult.

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