MULTIPURPOSE VALVE TO CONTROL FLOW FOR WATER PREPARATION SYSTEMS Russian patent published in 2009 - IPC F16K11/74 

FIELD: mechanics.

SUBSTANCE: proposed multipurpose valve to control flow for water preparation systems incorporates body (1) with water inlet branch pipe (5), water outlet branch pipe (6), waste water outlet (7) and constricting channel for fluid medium communicating with inner and outer spaces of water preparation system filtration element (18). The valve body incorporates valve rod with movable valve plate (3) and fixed valve plate (2) contacting by their face surfaces to form a tight contact zone. The movable valve plate (3) has through hole (15) and at least two blind recesses (13, 14). The fixed valve plate has through holes to communicate with water inlet branch pipe (5), water outlet branch pipe (6) and waste water outlet (7). Valve stem (4) is linked up with the movable valve plate (3) to allow it to turn relative to fixed plate (2). Movable valve plate (3) turns to adjust the flow. Here through hole (15) made in the said plate and blind recesses (13, 14) get aligned with appropriate holes with plate (2) to form various channels for fluid medium. Both aforesaid plates are mounted aligned to allow alignment of through hole (15) and blind recesses (13, 14).

EFFECT: simpler operation, compact design, higher water purification quality.

3 cl, 30 dwg