The large particles impurities will be filtered frst when water need to filter flowing into the filer pressure of from the inlet to filter,then, further  the tiny impurities in the water, finally by the outlet flow out. After twice filterring, the quality of the liquid can be perfect.

1, automatic self-cleaning function: filter is using its own water supply system, through the internal                  differential pressure to clean the filter, without any outside sources of energy.
2, uninterrupted water supply: when backwash water supply the whole system.Backwash water consumption is tiny, is filtered water yield of 1%.
3, the filtering precision accurate: filtration precision can be in 80 (including the m - 3000 (including m to choose.
4, small pressure loss: because filter area is larger than other types of filters, so the pressure loss is relatively small.
5, backwash and reliable: a variety of control mode, manual, differential pressure, time, PLC control of a variety of ways to choose from.
6, installation simple economy: structure forms, suitable for the installation of various site conditions, simple maintenance and reliable running.