What are the selection requirements of h11 high efficiency air filters widely used?

h11 high efficiency air filter uses ultrafine glass fiber paper as filter material, offset paper, aluminum film and other materials as partition plate, and wood frame aluminum alloy glued together, each are tested by the flame method, with high filtration efficiency, low resistance, large dust content and other characteristics, so the use of very widely, that in the face of many filter types, what are the requirements of high efficiency filter selection? (Shanghai SFFILTECHh11 High efficiency air Filter)

h11 High efficiency air filter

h11 high efficiency air filter can be widely used in optical electronics, LCD liquid crystal manufacturing, biomedicine, precision instruments, beverage and food, PCB printing and other industries clean air conditioning end supply. High efficiency and ultra-high efficiency filters are used at the end of the clean room, and can be divided into: high efficiency with partition, high efficiency without partition, ultra-high efficiency filters, etc. (Shanghai SFFILTECHh11 High efficiency air Filter)

General principles of h11 high efficiency air filter selection requirements:

1, import and export diameter: in principle, the import and export diameter of the filter should not be less than the matching pump inlet diameter, generally consistent with the inlet pipe diameter;

2. Nominal pressure: Determine the pressure level of the filter according to the highest pressure that may appear in the filter pipeline;

3, the selection of the number of holes: mainly consider the particle size of the impurities to be intercepted, according to the medium process requirements, the particle size of various specifications can be intercepted by the screen in the following table “filter specifications”;

4, filter material: the material of the filter is generally the same as the material of the connected process pipe, for different service conditions can be considered to choose cast iron, carbon steel, low alloy steel or stainless steel filters;

5, filter resistance(temperature Resistance air filter Hepa Box H10 H11) loss calculation water filter, in the general calculation of rated flow rate, pressure loss is 0.52 ~ 1.2kpa. (Shanghai SFFILTECHh11 High efficiency air Filter)

h11 High efficiency air filter

Air filters are recognized by more and more people, it improves air quality and ensures people’s health, and has been widely used, such as medicine, food and other industries are inseparable from all kinds of efficiency filters