Brush filter introduction:

The brush filter is somewhat similar to the suction filter. They are two self-cleaning filters that are commonly used now, and users are easily confused when purchasing. Next, let me introduce the difference between the two.

Brush filter introduction:

During the filtering process of the brush filter, the impurities in the inner layer of the fine filter gradually accumulate, and a pressure difference is formed between the inner and outer sides of the brush filter. When the pressure difference reaches the preset value, the filter will start the automatic cleaning process: the drain valve opens, the hydraulic motor chamber and hydraulic cylinder of the main pipe assembly release the pressure and discharge the water; the pressure in the hydraulic motor chamber and the suction pipe drops sharply, Due to the effect of negative pressure, the dirt on the inner wall of the fine filter is sucked through the suction nozzle, flows into the hydraulic motor chamber by the hydraulic motor, and is discharged by the sewage valve, forming a sewage suction process. When the water flows through the hydraulic motor of the filter, it drives the suction pipe to rotate, and the piston of the hydraulic cylinder drives the suction pipe to move axially.

The self-cleaning filter dirt catcher assembly completely cleans the entire inner surface of the filter screen through the combination of axial movement and rotary movement. The whole cleaning process will last tens of seconds. The blowdown valve closes at the end of the wash, the increased water pressure returns the cylinder piston to its initial position and the filter begins preparing for the next flush cycle. During the cleaning process, the normal filtering work of the filter is uninterrupted.

Suction filter introduction:

The water enters from the water inlet, first passes through the coarse filter to filter out larger particles of impurities, and then reaches the fine filter. During the filtration process, the fine filter screen gradually accumulates dirt and impurities in the water to form a filtering impurity layer. Since the impurity layer accumulates on the inner side of the fine filter screen, a pressure difference is formed between the inner and outer sides of the fine filter screen. . When the pressure difference of the filter reaches the preset value of the filter, the automatic cleaning process will start. During this period, the clean water supply will not stop, the cleaning valve will open, and the water pressure in the cleaning room and the suction device will drop significantly. There is a pressure difference between the filter suction pipe and the cleaning chamber through the suction nozzle to form a suction process. At the same time, the electric motor of the filter drives the sewage suction pipe to make a spiral movement along the axial direction. The combination of the axial movement and the rotary movement of the dirt suction device completely cleans the entire inner surface of the filter screen. The entire flushing process only takes tens of seconds. The blowdown valve closes at the end of cleaning. The filter is ready for the next flushing cycle.