ATTACHMENT RING AND VALVE

摘要

The invention relates to an attachment ring (1)for attaching an object (4) in a flow channel (2). The attachment ring (1) has a first surface (5) for contacting the object (4) and a second surface (6) for contacting a surface of a shoulder (7). An expansion member (9) expands the attachment ring (1) by pushing the ends (11, 12) away from each other when the expansion member (9) is moved into the opening (10). At least one of the second surface (6) of the attachment ring (1) and the surface (7) of the shoulder is inclined in order to wedge the attachment ring(1) between the surface (7) of the shoulder and the object (4) when the attachment ring (1) is expanded by the expansion member (9).