DEVICE FOR THROTTLING THE PURGE STREAM FROM A SANITARY CISTERN, DRAIN VALVE AND SANITARY CISTERN COMPRISING SUCH A DEVICE

摘要

The invention relates to a device for throttling the purge flow from a sanitary cistern (1), in particular a toilet cistern, which contains a drain valve (2) having a valve seat, a valve body (7) having a sealing surface or seal (9) Has a valve seat (5) and a drain port (5) formed valve seat (3), wherein the sealing surface or seal (9) in the closed state of the drain valve (2) rests on the valve seat (3) and in opened state of the drain valve (2) releases a drain port (5) defined drain opening, with a throttle (4), which defines at least one free flow cross-section (6). In order to provide a device by means of which the flushing flow from a sanitary cistern (1) can be adjusted comfortably and reliably, it is proposed that the restrictor (4), viewed in flushing flow direction, behind the valve seat (3) at or in the outlet connection (5) of the drain valve (2) or in a the connecting piece (5) receiving the connecting piece is arranged or can be arranged, wherein the throttle (4) at least two throttle elements (4.1, 4.2), of which one relative to another of the throttle elements (4.2) is rotatable so in that the size of the at least one free flow cross-section (6) can be changed by turning the rotatable throttle element (4.1) relative to the other throttle element (4.2).