| 摘要 |
<p>Seal (7) for a ventilation terminal device, such as a valve, for sealing the seam between the body (2) and the mounting frame, which seal is essentially ring-shaped, in which case it has a first planar surface, which comes against the valve body, and a second planar surface on the opposite side to the first planar surface, which second planar surface comes against the mounting frame. The invention is implemented in such a way that at least the first planar surface of the seal (7) is formed at least partly from a material possessing a lower friction coefficient than the seal material.</p> |
