How to drain the air compressor

2026-04-10Views:

Condensed water is a big killer of air compressor. If it is not discharged in time, it will rust the inside of the unit, reduce the performance of lubricating oil and affect the operation of the unit. So how is the condensate produced? And how to discharge?

Air compressor condensate water mainly comes from the air. The air sucked by the air compressor contains moisture. These gases containing moisture enter the unit. As the operating temperature of the unit rises, these moisture will evaporate. The evaporated moisture will enter the air storage tank for cooling with the compressed air. Many liquid water, we call it condensed water. If the air humidity is higher in the rainy season, the more condensed water will be.

Secondly, the low temperature operation of the air compressor will also produce condensed water. The operating temperature of the unit is lower than the moisture evaporation temperature, which will cause the moisture in the air to be directly precipitated to form condensed water. Therefore, long time low temperature operation of the machine should be avoided.

The discharge time of condensate is not clearly defined. It is usually based on the unit's intake air humidity and operating conditions. Usually the user will be in the boot or shut down, the condensate is fully precipitated, so that it will not affect the normal use of the unit can also ensure the effect of drainage.

Drainage shall be carried out after the air compressor is shut down, there is no pressure in the oil and gas separation tank, and the condensed water is fully precipitated. General air compressor will be equipped with a gas storage tank, at the bottom of the gas storage tank will be equipped with a drain valve, open the valve can drain. In order to facilitate the discharge of condensed water, most users will install automatic drainers. The automatic drain will handle the closed state without pressure. When the condensed water reaches a certain amount, the drain will automatically open. The water will be discharged under the action of air pressure. At the same time, the buoyancy will decrease and the air bottle will drop to block the drain.

Air compressor drainage more convenient method: air compressor itself has an automatic drainage device, usually through a "overflow ball" in the form of automatic drainage: overflow ball collection drainage, when the collection amount reaches a certain value (such as accounting for the overflow ball capacity of 2/3), automatically open the discharge valve for drainage. This is a passive drainage method. A better and more direct way of drainage is to install an electronic blowdown valve directly on the discharge pipe. Because the electronic drain valve has the function of timing discharge (fixed discharge time, fixed discharge interval time), it can flexibly adjust the time according to the working condition of the air compressor, which is more effective and reliable in practical application.

More Recommendations

  • 2026-04-10

    Water-lubricated oil-free air compressor

    Oil-free air compressor, Granklin Group is engaged in the production of products. As one of the main products in the air compressor manufacturing industry, oil-free air compressor has been recognized by many customers. Many customers in the purchase of air compressors are as one of the campaign goals, so what are the advantages of oil-free air compressors?

    View details
  • 2026-04-10

    Fixed screw air compressor to choose this brand

    Air compressor general machinery and equipment, for the enterprise to provide a steady stream of production with gas. The benefits of "fixed screw air compressor" are stable, high efficiency, and can achieve higher displacement and pressure. Routine maintenance is also less. "Fixed screw air compressor" in the leader "water-lubricated air compressor" series, "Shanghai Granklin Group" production of "oil-free air compressor" products. Durable, oil-free air, simple maintenance, is a high-quality "fixed screw air compressor". To do a good job in products is the voice of all the factory people of granklin group. Let users rest assured, no worries, better use of "oil-free compressed gas".

    View details
  • 2026-04-10

    What is the advantage of the full oil-free screw air compressor

    More and more enterprises begin to adopt "oil-free screw air compressor". Shanghai granklin group's "water lubricated air compressor" is "all oil-free screw air compressor". users who need it can contact us at any time. contact phone number: 13918023456

    View details
  • 2026-04-10

    what brand of air compressor is worth recommending?

    Air compressor, full name air compressor (English: air compressor) is the main body of the air source device. It is a device that converts the mechanical energy of the prime mover (usually an electric motor) into gas pressure energy. It is a pressure generator for compressed air. Is one of the most commonly used in industrial and mining enterprises to provide air power equipment. Usually, the air compressor is divided into screw type air compressor, piston type air compressor and so on.

    View details
  • 2026-04-10

    Troubleshooting Methods Frequently Encountered by Oil-Free Air Compressor

    The current of the 1. oil-free air compressor is too high: the common reasons for this failure are as follows: 1. The main engine fails 2. The exhaust pressure is too high 3. The voltage is too low: Generally, the power of the oil-free air compressor is Rated, therefore, according to the public

    View details
  • 2026-04-10

    The specific use of air compressors in various industries

    Air compressors are used in energy, textiles, steel, dairy products, pharmaceuticals, breathing, diving, fire fighting, electronics, machinery, equipment, automobiles, packaging, printing, toys, chemicals, energy, glass, environmental protection, hardware, PET blowing Bottle, ship, medicine

    View details
  • 2026-04-10

    Air compressor brand how to choose

    In China's screw air compressor market, there are more than 1,000 air compressor brands, most of which produce oil screw air compressors. If you need high-end manufacturing industries, there are not many manufacturers of process air compressors that can match. Air compressors are divided into electric and diesel transfer. Electric compressors are divided into oil, micro-oil and no oil. Diesel transfer is only suitable for oil.

    View details
  • 2026-04-10

    Air filter element selection conditions for air compressor

    The air filter of the air compressor system is the first barrier of the screw air compressor. The quality of the air filter is very important. If the quality of the air filter is not good, just like people, the disease enters from the mouth. If the quality of the air filter is not good, customers will waste a lot of electricity bills, and it will directly affect the service life of oil, oil filter, oil, bearings, etc.

    View details
  • 2026-04-10

    Screw air compressor factory direct quotation

    Screw air compressor factory direct good? Air compressor is a large energy consumption for enterprises, so how to reduce procurement costs! In today's complicated relationship, contact the manufacturer to get the best air compressor price.

    View details
  • 2026-04-10

    Grantkering for Medical Oil-free Water Spray Single Screw Air Compressor

    When the pharmaceutical industry chooses air compressors, it is necessary to consider the air quality. High-quality compressed air brings about the quality and efficiency of the products. Granklin air compressor adhering to the oil-free air, accelerate the domestic air compressor to a more high-end industry and technology to continuously improve the quality of oil-free air.

    View details