BACK-FLUSH WATER FILTER Russian patent published in 2008 - IPC B01D24/00 C02F1/64 

FIELD: mechanics.

SUBSTANCE: back-flush water filter comprises casing forming sorbing chamber, sprayer, inlet pressure gage and an outlet valve. The aforesaid sorbing chamber is separated by vertical partition and screens arranged at its bottom into equal parts, activated natural silver-saturated zeolite being used as sorbing agent. Drain valve is arranged at the filter casing bottom, the filter inside accommodates screened outlet valve, the filter being provided with petticoat with hole and cover accommodating check valve, air-flush valve, inlet and outlet pressure gages and outlet valve. The cover bottom accommodates a sprayer fitted on the inlet valve pipe and air-flush valve pipe with screen on its outlet. There is an air chamber formed between the said air-flush valve pipe end and filter cover.

EFFECT: simpler servicing, higher water purificationy, higher degree of separation of iron, higher filter capacity at constant sorbent amount.

2 cl, 1 dwg