Pressure-reducing valve

A water pressure reducing valve (1), for water pressure regulation in water pipes, the valve (1) comprising:

• a valve housing (2), configured to be inserted in a water pipe, a valve carrier (4) provided in a housing interior space of the valve housing, the valve carrier (4) has at least one throughflow channel (5), a cup-shaped valve body (3) which is displaceably guided from an open position into a closed position counter to a restoring force, the valve body (3) has a circumferential edge (6) formed by the cup shape that abuts a valve seat (7), provided on the valve carrier (4), in the closed position, with the valve seat being formed as a sealing ring (18), such that the valve body (3) closes at least one channel opening (8) in the at least one throughflow channel (5), the sealing ring (18) is held in an annular groove (32) on the valve carrier, which is open on an outer circumference of the valve carrier (4) and is axially supported on either side by groove flanks (33, 34) of the annular groove (32), the groove flank (33) which faces the valve body (3) ends in front of an inner circumference of the valve body (4), which abuts the sealing ring (18) when the pressure reducing valve (1) is in the closed position, a sealing-lip-shaped circumferential molded-on formation (35) is molded on an end face of the sealing ring (18) which faces the valve body (3), and the sealing-lip-shaped molded-on formation (35) is movable to lie against an inner circumference of the valve body (3) when a primary pressure prevailing on an inlet side (A) of the pressure reducing valve (1) rises, and an annular space (37), which communicates with the inlet side (A) of the pressure reducing valve (1) via a pressure equalization path extending from the annular space (37) to an interior of the valve body (3), located between a groove base (36) of the annular groove (32) and the sealing-lip-shaped molded-on formation (35).