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Selection method of box filter
Selection method of box filter(I) Inlet and outlet diameterWhen selecting the inlet and outlet diameter of the box filter, in principle, it should not be smaller than the inlet diameter of the matching pump, and should generally be consistent with the diameter of the inlet pipeline. For example, in an industrial cold assembly box, the inlet and outlet diameters of the filter need to be determined according to the parameters of the pump and the pipeline conditions to ensure smooth passage of the fluid and avoid insufficient flow or excessive pressure loss due to too small a diameter. (II) Pressure The pressure selection of the filter should determine its pressure level according to the maximum pressure that may occur in the filter pipeline. Generally, the pressure level of the filter can be regarded as the same as the pressure level of the protected equipment. For example, in some chemical production, if the pipeline may have a higher pressure, it is necessary to select a box filter with a higher pressure level, such as a model that can withstand a pressure of more than 5.0MPa. (III) Number of meshes The selection of the number of meshes is mainly based on the particle size of the impurities to be intercepted and the process requirements of the medium flow. Wire meshes of different specifications can intercept impurities of different particle sizes. When selecting, you should carefully refer to the relevant specification table. For example, if you want to intercept dust particles larger than 0.5μm, you may need to choose a filter with a denser mesh. (IV) Material The material of the filter is generally the same as the material of the process pipe to which it is connected. For different service conditions, you can consider choosing filters made of cast iron, carbon steel, low alloy steel, or stainless steel. For example, in a corrosive environment, stainless steel should be preferred to ensure the service life and filtering effect of the filter. |
