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The principle requirements for filter selection

When the fluid enters the filter cartridge with a certain specification, the impurities are blocked and the clean filtrate is discharged from the filter outlet.

1、Import and export diameter of the filter.

In principle, the import and export diameter of the filter should not be smaller than the import diameter of the matching pump, and generally the same diameter as the import pipeline.

2、Nominal pressure selection.

Determine the pressure level of the filter in accordance with the highest possible pressure of the filter pipeline.


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3. Selection of the number of holes.

The selection of the number of filter holes mainly considers the particle size of impurities to be intercepted and is based on the process requirements of the media flow. The size of particle size that can be intercepted by various specifications of screen is shown in the following table "Screen Specifications".

4. Filter material.

The material of the filter is generally chosen to be the same as the material of the connected process pipeline. For different service conditions, the filter made 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.


  T filter is widely used in the pipeline of steam, air, water, oil and other media to protect various equipment on the pipeline system, such as pumps, valves, etc., from blockage and damage to the pipeline brought by rust, welding slag and other debris in the pipeline. The T-strainer produced by Shanghai Rimei Valve Manufacturing Co., Ltd. has the characteristics of strong anti-fouling performance, convenient discharge, large circulation area, small pressure loss, simple structure, small volume, etc.; the material of the filter mesh of the T-strainer is stainless steel, with strong corrosion resistance and long service life; the T-strainer is also divided into DC type and folded flow type, and the density of the filter mesh is 10 mesh-120 mesh. Temperature 0~450℃, can be selected according to user needs.