| 摘要 |
<p>A vent device for ventilation purposes and including a pipe portion (8) for permanent fastening in a building structure or the like, and a vent unit which is removably attachable into the pipe portion and including a vent housing (1) with an essentially conical conduit portion (2) and an outside portion (3), and a valve body, wherein the vent housing (1) is provided with engagement means for releasable engagement with the pipe portion (8). The device is distinguished by the vent housing (1) at the outside of the conduit portion (2) being provided with snap-lock means (4a,b) for snap-lock engagement with corresponding snap-lock elements (13) in the pipe portion (8). The invention also concerns a vent unit.</p> |
