1. Import and export diameter: In principle, the inlet and outlet diameter of the filter should not be less than the inlet diameter of the matched pump, which is generally consistent with the inlet pipe diameter.
2. Nominal pressure: Determine the pressure level of the filter according to the high pressure that may occur in the filter line.
3, the choice of the number of holes: mainly consider the particle size of the impurities to be intercepted, according to the process requirements of the media process. The size of the screen that can be intercepted by various specifications of the screen can be found in the table below.
4. Filter material: The material of the filter is generally the same as the material of the connected process pipe. For different service conditions, consider the filter of cast iron, carbon steel, low alloy steel or stainless steel.
5, filter resistance loss calculation: water filter, under the general calculation of the rated flow rate, the pressure loss is 0.52 ~ 1.2kpa