Filter Selection Principle

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, which is generally the same as the diameter of the inlet pipeline.

2. Nominal pressure:

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

3. Selection of the number of holes:

The main consideration is the particle size of impurities to be intercepted, which is determined according to the process requirements of the medium. For the particle size that can be intercepted by wire meshes of various specifications, please refer to the table "Filter Specifications".

4. Filter material:

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

5. Calculation of filter resistance loss

For water filters, the pressure loss is 0.52～1.2kpa under the general calculation of rated flow rate