The principle of the filter is that after the fluid enters the filter cartridge, its impurities are blocked, and the clean fluid flows out of the outlet. When cleaning is required, just remove the conical filter cartridge and install it after cleaning. The characteristics of the temporary filter are mainly used to install between the two flanges of the pipeline before the pipeline is started. The equipment is simple, reliable, convenient and widely applicable. Temporary filters are mainly divided into sharp-bottomed conical filters and flat-bottomed conical filters.