| 摘要 |
A tap (14) for a drainage bag (10) is provided which can be welded to the ba g material with the tap in a ready-assembled condition. The tap includes an in tegral attachment portion (20) and a housing (18). An L-shaped tubular tap member ( 16) with a handle (30) is inserted in an aperture of the housing (18), and is rotatab le in the aperture between a closed position in which the outlet (22) points upwardly, and an open position in which the outlet (22) points downwardly. In the closed posi tion, a peripheral region (54) of the attachment portion (20) projects beyond the ta p member (16) on all sides, to enable the assembled tap to be welded to the bag mater ial.
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