NON-RETURN VALVE Russian patent published in 2018 - IPC F04D13/16 F04D9/02 F16K15/06 

FIELD: machine building.

SUBSTANCE: group of inventions relates to water supply. Household water supply station (1) has a non-return valve which is integrated into flow channel (14) of station (1) or a valve housing. Valve has sealing element (21) movably mounted within channel (14), which closes channel (14) in a first closed position, and releases channel (14) in a second open position. Sealing element (21) is movably mounted on holder (31) having closure element (15) by means of which holder (31) is detachably fixed in the opening of the housing. Seal (33) is provided between the opening of the housing and closure element (15). Closure element (15) comprises overflow channel (37), which is released in an intermediate position, in which closure element (15) is still mechanically fixed in the opening of the housing, but seal (33) of closure element (15) no longer acts.

EFFECT: inventions are aimed at improving the design and operation of the station by providing easy access to the valve during installation and dismantling.

35 cl, 5 dwg