Chengdu Zhongxiao non-woven fabric filter bag type primary filter screen air purification equipment accessories

Description :

  The medium efficiency filter is a key purification component in the air conditioning and ventilation system, mainly intercepting dust particles of 1-5 microns in size. It is usually installed after the primary filter and before the high-efficiency filter to protect the rear high-efficiency filter element and extend its service life. In industrial plants, hospital operating rooms, and commercial complexes in Chengdu, Sichuan, this medium efficiency non-woven fabric filter can effectively reduce system resistance, maintain stable air output, solve the problem of excessive suspended particulate matter in the air, and ensure that indoor air quality meets GMP or relevant cleanliness standards.

  This medium efficiency filter uses high-quality synthetic fiber non-woven fabric as the filter material, which has the characteristics of large dust holding capacity and good breathability. Common specifications include efficiency levels such as F5, F6, F7, F8, F9, corresponding to different counting efficiencies or colorimetric efficiencies. The frame material is mostly galvanized steel plate, aluminum alloy or stainless steel, with a sturdy structure and corrosion resistance. Filter bag design is usually a V-shaped or bag structure, which increases the effective filtration area and reduces the initial pressure drop. The product complies with the national standard GB/T 14295-2019 "Air Filters" and has undergone strict flame retardant and strength testing to ensure that it can maintain structural integrity in high temperature and high humidity environments without generating secondary pollution.

Yunnan Kunming Medium Efficiency Filter; Yunnan Kunming Zhongxiao Non woven Filter; Yunnan Kunming F5F6F7F8 bag filter

  When selecting, the efficiency level and air volume matching should be determined based on the on-site working conditions. If the front-end dust concentration is high, it is recommended to use F5-F6 medium efficiency non-woven fabric filters as pre filters; If high cleanliness is required, such as in pharmaceutical workshops, F7-F9 levels should be selected. It should be noted that medium efficiency filters are not suitable for environments containing oily mist or corrosive gases. Special oil mist filters or chemical filters should be used for such working conditions. Compared with primary filters, medium efficiency filters have higher accuracy, but also relatively higher resistance. Therefore, they must be used in conjunction with fans of appropriate power to avoid insufficient air flow due to excessive resistance, which may affect the overall ventilation effect.

  During installation, it should be ensured that the filter is well sealed with the frame to prevent air leakage and unfiltered air from directly entering the clean area. In daily maintenance, it is necessary to regularly monitor the final resistance of the filter. When the resistance reaches twice the initial resistance or the specified limit, it should be replaced in a timely manner. It is generally recommended to check every 3-6 months, depending on the environmental dust concentration. Do not attempt to clean and reuse non-woven filter media to avoid damaging the fiber structure and reducing efficiency. When storing, it should be placed in a dry and ventilated place to avoid moisture, mold, or mechanical deformation, in order to ensure the flatness and sealing during installation.

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