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Air permeability of filter paper

2017-04-14 View：

A wide range of filter media, paper filter with excellent performance and low cost, in the filter industry occupies a large proportion. Filter for the filter medium filter, and its characteristics and filter paper performance indicators are closely related.filter

1. Air permeability of filter paper

Air permeability is a comprehensive reflection of the performance of filter paper. It's the primary consideration when design it. It is closely related to the flow resistance characteristics of the filter, filtration efficiency, original resistance, ash storage capacity (life) and other performance indicators, the greater the permeability of the filter paper, the smaller the flow resistance, the original resistance is also smaller. It exsit an opposite qualitative relationship between air permeability and flow resistance.  


On the processing technology of the filter
Air permeability is also an indicator of moisture resistance of filter paper. Filter the greater the permeability of the more easy to absorb moisture, moisture absorption after the filter paper longer. Processing size instability, affecting mass production. Poor processing technology. Serious damage caused by quality. In the end of the cover before the damp, filter paper length 2 ~ 4mm, affecting the height of the filter control. Adhesive after damp, filter paper swell, filter distortion, a serious impact on the filter quality.

2. Maximum pore size, average pore size
The maximum pore size and average pore size can be measured by bubbling, and the maximum pore size is the pore size at which the first bubble point pressure is calculated. The average pore size is the pore size calculated from the bubble point pressure. According to this principle, you can see the maximum pore size and average pore size.
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