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Characteristics of primary air filters
Characteristics of primary air filtersUsually referred to as the filter cotton generally refers to the primary air filter cotton, which can filter the dust in the air, to ensure that the air is clean.According to the different materials to divide, filter cotton can be divided into synthetic fiber filter cotton, non-woven filter cotton, glass fiber filter cotton, and activated carbon filter cotton four categories; according to the different filtration efficiency to divide, filter cotton can be divided into three categories of primary filter cotton, medium-effect filter cotton, high-efficiency filter cotton. Primary air filtration cotton product characteristics: density step by step increase in synthetic fiber filter media, economical, low initial resistance, high dust capacity, elastic, environmental protection, easy to use, the series of products are mainly used for pre-filtration of purification systems, is commonly used in air purification filtration, the use of common filter materials, filtering the atmosphere 5m particles of dust and suspended matter is the main. Suitable for filters where frequent cleaning is required, air filtration system pre-filtration. The main components are mostly: PET (polyester fiber) and PP (polypropylene fiber), the usual production process methods generally use the hot air method and the needle punch method. Use time: Under the condition of rated air volume use, it can be used normally for 1~2 months, that is, the filter cotton needs to be replaced; or when the resistance of the filter cotton reaches 200Pa or more, the filter cotton must be replaced. Product characteristics of the primary air filter cotton (non-woven): 1. The primary filter cotton mainly filters dust particles larger than 5μm; 2. The primary filter cotton is made of high-performance, high-strength synthetic fibers with incremental structure; 3. High dust holding capacity and low resistance, strong flame retardancy; 4. Long service life, can be used many times after cleaning, economical and practical; 5. Can withstand the temperature of 100℃; 6. The filter cotton complies with the fire classification standards DIN53438-F1 and UL900-CLASS 1; 7. With paper frame and metal frame, it can be used as filter media for plate primary filter, washable plate filter, paper frame filter, bag type primary filter, etc. |
