WATER SUPPLY SYSTEM Russian patent published in 2002 - IPC

FIELD: water supply systems; applicable in water supply of residential and office buildings. SUBSTANCE: water supply system has distributing pipeline connected by means of supplying pipelines to flush tank located on distributing pipeline, hydrant, tank with water periodic discharge, discharge pipeline and purification device including inlet part in the form of narrowing packing with internal curved guides and external annular cavity, filtering part filled with filter media ensuring chemical and biological final purification of water. Curved guides profile is in the form of dovetail. Body of narrowing packing is made of bimetal. EFFECT: improved purification capacity of narrowing packing, reliable removal of solid particles from cavities of curved grooves. 3 dwg