Patent ID: 8919373

Claim:
A valve comprising a valve housing ( 1 ), having an interior space in which a fluid line piece ( 2 ) is provided having an outflow-side circumferential edge region that forms a valve seat ( 3 ) for a valve body ( 4 ), said valve body ( 4 ) can be moved between an open position and a closed position firstly by a pressure, which acts on the valve body ( 4 ), of the fluid flowing in through the fluid line piece ( 2 ) and secondly by a counterpressure, in said closed position the valve body ( 4 ) acts on the outflow-side circumferential edge region of the fluid line piece ( 2 ), the counterpressure is adapted to act on the valve body ( 4 ) counter to a regular throughflow direction, a sliding guide having a guide path is assigned to the valve body ( 4 ) and is bounded by a housing inner circumference of the valve housing ( 1 ) and an outer circumference of the fluid line piece ( 2 ), the valve body ( 4 ) has at least one annular sliding piece ( 5 ), which is displaceably guided in the sliding guide, and a closure piece ( 7 ) which acts on the valve seat ( 3 ) in the closed position, and the closure piece ( 7 ) and the sliding piece ( 5 ) are connected to one another by connecting webs ( 6 ) which delimit throughflow openings therebetween wherein the sliding travel of the valve body ( 4 ) is delimited by at least one stop in the valve housing ( 1 ), the stop interacts with a counterpart stop on the valve body ( 4 ), and at least one of the stop is formed as an annular shoulder ( 8 ) provided on the housing inner circumference, or the counterpart stop is arranged on the connecting webs ( 6 ).