| 摘要 |
<p>A pipe seal for fitting in a groove (2) in the side wall of one plastic pipe (3) to engage and seal with a seamed plastic pipe (11) inserted inside the first, comprises a resiliently deformable annular carrier (1) and an annular sealing member (7) attached to the carrier (1). A flange (17) extends axially from the sealing member (7) and engages one radial side wall (10) of the groove (2). The carrier (1) is preferably U-shaped with one arm (4) in the base of the groove extending axially to engage the other radial side wall of the groove (2). The arm (4) in the base of the groove (2) is longer than the other arm (5) of the U-shape. A flange (12) extends axially from the sealing member in the base of the groove to engage said radial side wall (10) and stands proud of the carrier (1) to engage the base (9) of the groove (2). A flange (15) extends radially inwardly from the sealing member (7) to engage the second pipe (11), and has an inclined face (16) for engagement by the end of the pipe (11) as it is inserted.</p> |
