| 摘要 |
<p>A tube (4), hose or the like is provided at intervals with openings (5) to let the water out and in the region of these openings with the off flow device which possibly has water distributors (14). In order to reduce extensively the danger of blockages of the water outlet openings and to make possible the operation of the irrigation system in a wide pressure range, the off flow device (1) has a pin (2) which is insertable in the opening (5) and in which at least one groove (3) or the like is formed, at least a partial region of the groove or the like being situated downstream in operation and at least this partial region being connected to one or more channels (7) which lead to the outside and define the water outlet cross-section (Figs 1 and 2). <IMAGE></p> |
