2026-06-24Views：
Ppm is a concentration unit that measures how much oil remains in compressed air, and its full name is one part per million.
To put it bluntly, consider compressed air as one million parts, of which several parts are oil and that is the value of ppm. For example, the oil content is 3ppm, which means that 3 parts of a million parts of air are oil. To put it more intuitively, it's about 1.2 milligrams of oil per cubic meter of air. The smaller the number, the cleaner the air. 5ppm is about 6 milligrams of oil per cubic meter, and 0.01ppm is about 0.012 milligrams of oil per cubic meter, which is hundreds of times worse.
This unit is very commonly used in the oil removal effect of filters, because the oil content in compressed air is very small, and it is too rough to express it in percentage. For example, 0.0001percent is neither intuitive nor easy to compare. Therefore, ppm is used to express it uniformly in the industry. The number is small but the meaning is clear, and you can see at a glance whether the air is dry or not.
The oil removal effect of the high-efficiency filter is marked as 0.01ppm or 0.003ppm, which means that after this filter, the oil in the air is pressed to 0.01 parts per million or 0.003 parts per million, which can be basically regarded as oil-free air.
When the water-lubricated air compressor is involved in the work, it does not use lubricating oil itself. The compression process relies on clear water to form a water film to reduce friction and seal gaps. The air discharged does not contain oil. This oil-free air is then processed by a high-efficiency filter, and the final output oil content can be extremely low in ppm. Because there is no oil mixed from the source, the back-end filter only needs to deal with the possible trace amount of oil mist, so the overall oil removal effect is easier to reach a very low ppm level than the combination of traditional air compressor and filter. The combination of water-lubricated air compressor and high-efficiency filter is especially suitable for scenes with high air cleanliness requirements, and the output is clean and oil-free compressed air in the true sense.
To sum up, ppm is the concentration unit of one part per million, which is used to indicate how much oil is left in the compressed air. The smaller the number, the cleaner the air. The water lubricated air compressor and the high efficiency filter can push this value to a very low level.
The gas source design of the factory must consider the gas volume, which is the key factor to ensure the stable operation of the production. The following is a detailed description of the core requirements of the gas source system, the risk of insufficient gas volume, the hidden dangers of excess gas volume and the optimization direction: 1. gas source system
In the medical field, compressed air, as an important auxiliary tool, plays an irreplaceable role. It is not only directly related to the normal operation of medical equipment, but also has a profound impact on the treatment effect and life safety of patients. Produced by Shanghai Granklin Group
When discussing the field of permanent magnet air compressor, especially the water lubricated air compressor of Shanghai granklin Group, we can make an in-depth analysis from the following aspects: 1. Shanghai granklin Group Overview Shanghai granklin Group is a company with significant advantages in the field of air compressor.
Screw compressor vibration value of national standards, but a bit "serious" topic! However, I will try to explain it to you in a soft and interesting way. Imagine that the screw compressor is like a chef in a big kitchen, its &
The quality standard of medical compressed air is usually stipulated by the national health department or industry standard. In China, the standard of medical compressed air is regulated by the "Hospital Compressed Air Quality Standard" (GB/T 14213-2013). In addition, medical compressed air should also be
In the copper foil industry, the quality of compressed air has a crucial influence on the stability of the production process and the final quality of the product. Especially the oil content in compressed air, it is a key control indicator. Due to the environmental cleanliness requirements of copper foil production
The oil content requirements of oil-free screw machines are mainly related to the oil content standards of air system emissions. The following is a detailed summary of the oil-free screw machine oil requirements: oil content standard: oil-free screw air compressor performance indicators, oil-free indicators mainly refer to air
As a widely used mechanical equipment, the general field of air compressor covers many important industries and scenarios. The following is a rigorous summary of the general field of air compressors: 1. industrial production and manufacturing production line power source: in all kinds of industrial production lines, air compressors are
The reason why the air compressor uses a permanent magnet motor can be understood mainly from the following aspects: First, the permanent magnet motor has the characteristics of high efficiency and energy saving. Compared with the traditional asynchronous motor, the application of permanent magnet motor in air compressor can significantly reduce energy consumption. This is because the permanent magnet electric
When exploring which permanent magnet variable frequency compressor is good, Shanghai granklin group has undoubtedly become a leader in the industry with its excellent water lubricated screw air compressor products. The group specializes in the production of oil-free water lubrication air compressors, with rich production experience and advanced
2018 Granklin Group. All rights reserved 沪ICP备18000439号-2
