AONG- OCH KONDENSATKOPPLING TILL EN TORKNINGSCYLINDER I EN PAPPERSMASKIN

The invention concerns a steam and condensate coupling (26) for a drying cylinder (10) in a paper machine. The steam and condensate coupling (26) for a drying cylinder in a paper machine comprises a piston ring (29) and therein a seal (24), which is pressed by means of steam pressure against the revolving axle (10c) or against a flange part (22) or equivalent permanently connected to said axle. In the coupling (26), there is a piston ring (29), which comprises a face (32) that is placed substantially perpendicularly to the axial direction (X) of the roll, or slightly inclined from said perpendicular plane. In the coupling construction, the steam pressure is passed (arrow S) onto said face of the piston ring (29), and a force (F) is produced, by which force the piston ring (29) and the seal (24) provided in same are pressed with force towards the revolving axle (10c). Thereby, by means of the steam pressure, a pressure-tight joint is provided between the stationary, non-revolving seal (24) and the revolving axle (10c).