Donaldson filter Germany Donaldson model Donaldson price

The prototype of the Donaldson filter is a respiratory protective device used by people to protect their breathing. According to records, as early as the first century in Rome, people used masks made of coarse linen for protection when purifying mercury. In the long period that followed, air filters also made progress, but they were mainly used as respiratory protective devices in some hazardous industries, such as the production of harmful chemicals. In l827, Brown discovered the movement laws of tiny particles, giving people a further understanding of the mechanism of air filtration. The rapid development of air filters is closely related to the development of the military industry and the electronics industry. In the 52s, the United States conducted in-depth research on the production process of glass fiber filter paper, which improved and developed air filters.

Donaldson filter filtration accuracy

Equipment that captures dust from gas-solid two-phase flow through the action of porous filter media and purifies the gas. It treats air with low dust content and sends it into the room to ensure the process requirements of clean rooms and the air cleanliness of general air-conditioned rooms. Compressed air from the air source contains excessive water vapor and oil droplets, as well as solid impurities such as rust, sand particles, and pipe sealants. These can damage piston sealing rings, block small exhaust ports on components, shorten the service life of components, or cause failure. The function of an air filter is to separate liquid water and liquid oil droplets from compressed air and filter out dust and solid impurities in the air, but it cannot remove gaseous water and oil.

Donaldson filter selection

Correctly determine filter characteristics. The main characteristics of a filter are filtration efficiency, resistance, penetration rate, dust holding capacity, filtration wind speed, and handling air volume. Where conditions permit, high-efficiency, low-resistance, high-dust-holding-capacity, moderate-filtration-wind-speed, large-handling-air-volume, easy-to-manufacture-and-install, and low-price filters should be selected as much as possible. This is an economic analysis requirement that comprehensively considers one-time investment, secondary investment, and energy efficiency ratio when selecting air filters. 6. Analyze the properties of dust-laden gas. The properties of dust-laden gas related to the selection of air filters are mainly temperature, humidity, and the amount of acids, alkalis, and organic solvents. Because some filters allow use at high temperatures, while others can only work at normal temperature and normal humidity, and the amount of acids, alkalis, and organic solvents in the dust-laden gas affects the performance and efficiency of air filters.

Donaldson filter application

The purpose is to obtain clean air that meets standards. General ventilation filters capture and adsorb dust particles of different sizes in the air to improve air quality. In addition to adsorbing dust, chemical filters can mainly adsorb odors and are usually used in places such as biopharmaceuticals, hospitals, airport terminals, and human living environments. The uses of general ventilation filters are relatively extensive, including the microelectronics industry, coating industry, food and beverage industry, etc. In other words, the filter is just a means to achieve the goal of cleanliness.

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