Vahle filter Germany Vahle model Vahle price

The design of the Vahle filter itself has made significant progress, the most important of which is the removal of separators, i.e., the development of separator-free filters. Separator-free filters not only eliminate the risk of separators damaging the filter media, but also effectively increase the filtration area, improve filtration efficiency, and reduce airflow resistance, thereby reducing energy consumption. In addition, filters have made great progress in high temperature resistance, corrosion resistance, water resistance, and bacteria resistance, meeting some special needs. The design of the filter itself has also made significant progress, the most important of which is the removal of separators, i.e., the development of separator-free filters. Separator-free filters not only eliminate the risk of separators damaging the filter media, but also effectively increase the filtration area, improve filtration efficiency, and reduce airflow resistance, thereby reducing energy consumption. In addition, filters have made great progress in high temperature resistance, corrosion resistance, water resistance, and bacteria resistance, meeting some special needs.

Vahle filter applications

Air filters are used 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. Chemical filters, in addition to adsorbing dust, can mainly adsorb odors and are usually used in biopharmaceuticals, hospitals, airport terminals, human living environments, and other places. The use of general ventilation filters is quite 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.

Vahle filter selection

Select the appropriate filter reasonably according to specific circumstances. The selection principles are as follows: Determine the efficiency of the final-stage filter based on the required cleanliness and purification standards indoors, and reasonably select the combination stages of air filters and the efficiency of each stage. If general purification is required indoors, primary efficiency filters can be used; if medium purification is required indoors, two-stage filters with primary and medium efficiency should be used; if ultra-clean purification is required indoors, three-stage purification filtration with primary, medium, and high efficiency should be used, and the efficiency of filters at all levels should be matched reasonably and properly. If the efficiency difference between two adjacent stages of filters is too large, the previous stage filter will not protect the next stage filter. Analyze the properties of dusty gas. The properties of dusty gas related to filter selection 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 humidity, and the amount of acids, alkalis, and organic solvents in dusty gas affects the performance and efficiency of the filter.

Vahle filter maintenance

To extend the service life of the filter, the most fundamental method is to block dust at the pre-filter. Replacing the pre-filter generally does not require production shutdown or debugging, so experienced owners will focus their attention and money on the pre-filter and the protective intermediate filter. In overseas projects and new domestic projects, the F14 filter is the most common pre-filter for non-unidirectional flow cleanrooms. In some cases, regulations on the service life of high-efficiency filters are not due to considerations of resistance, but other factors. If there is hydrofluoric acid in the plant and the workshop air conditioning is not a fresh air system, the glass fiber filter paper in the filter will be corroded by the return air. For safety, high-efficiency filters must be replaced regularly. Some large pharmaceutical factories replace high-efficiency filters after the rainy season every year to prevent any possible mold contamination on the filters. Some biological laboratories and laboratories dealing with hazardous materials require the use of new high-efficiency filters for reliability before starting a new important project.

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