1, import and export diameter:

In principle, the inlet and outlet diameter of the filter should not be smaller than the inlet diameter of the matching pump, generally consistent with the inlet pipe caliber.

2, nominal pressure:

Determine the pressure level of the filter according to the highest possible pressure in the filter line.

3, the selection of the number of holes:

The main consideration is the particle size of the impurities to be intercepted, according to the process requirements of the medium process. The particle size of various specifications can be intercepted by the screen check the table "filter specifications".

4, filter material:

The material of the filter is generally the same as the material of the connected process pipe, and the filter of cast iron, carbon steel, low alloy steel or stainless steel can be considered for different service conditions.

5, filter resistance loss calculation

Water filter, in the general calculation of rated flow rate, the pressure loss is 0.52 ~ 1.2kpa