VAI filter Germany VAI model VAI price

The prototype of the VAI filter is a respiratory protective device used by people to protect their breathing. The rapid development of air filters is closely related to the development of the military and electronics industries. 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. To clean contaminated air to the state required for production and daily life, that is, to achieve a certain level of air cleanliness. In 1833, Brown discovered the movement laws of tiny particles, giving people a further understanding of the mechanism of air filtration.

VAI filter history

Filtration technology was already applied to production in ancient China. Paper made from plant fibers existed in 200 BC. In 105 AD, Cai Lun improved the papermaking method. During the papermaking process, he spread plant fiber pulp on a dense fine bamboo curtain. Water filtered through the gaps in the bamboo curtain, leaving a thin layer of wet pulp on the surface, which became paper after drying. The earliest filtration was mostly gravity filtration. Later, pressure filtration was adopted to increase the filtration speed, and vacuum filtration subsequently appeared. The rotary drum vacuum filter invented in the early 26th century realized the continuous operation of filtration. Since then, various types of continuous filters have emerged.

VAI filter function

Used on filter performance test benches. Such test benches require strict purification of the system before testing. Therefore, both the test system and the contamination injection system serving the test system must be equipped with filters. This type of filter is different from the filter under test; its accuracy and dirt holding capacity requirements are higher than those of the filter under test. To distinguish between the two types of filters in the same test system, this filter is called the test bench filter, and the filter under test is called the test filter. To clean contaminated air to the state required for production and daily life, that is, to achieve a certain level of air cleanliness.

VAI filter industry

It is a precision device that uses a filter screen to directly intercept impurities in water, remove suspended solids and particulate matter from the water body, reduce turbidity, purify water quality, and reduce the generation of system fouling, bacteria, algae, and corrosion, thereby purifying water quality and protecting the normal operation of other equipment in the system. Main components include: motor, electrical control box, control piping, main pipe assembly, filter element assembly, 316L stainless steel brush, frame assembly, drive shaft, inlet and outlet connection flanges, etc. It overcomes many shortcomings of filtration products, such as small dirt holding capacity, susceptibility to clogging by contaminants, the need to disassemble and clean the filtration part, and the inability to monitor the filter status. It has the function of filtering raw water and automatically cleaning and discharging the filter element. During cleaning and discharge, the system supplies water continuously, can monitor the working status of the filter, and has a high degree of automation. It covers the needs for various filtration accuracies from 10um to 3006um. Adopting advanced technology from the international water treatment industry equipment, it can be installed vertically, horizontally, or inverted in any direction and position. It can be used for water filtration in various industries such as industrial, agricultural, municipal electric power, electronics, pharmaceutical, food, printing and dyeing, construction, steel, metallurgy, and papermaking.

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