CORRUGATED PIPE GASKET

摘要

A gasket is adapted for sealing a joint between bell and spigot ends of corrugated pipes. The gasket generally includes a pair of seal lobes which provide a redundant double seal, together with an anchoring portion sized to be received in a trough defined by the pipe corrugation and at least one anti-roll lip adapted to engage the anchoring corrugation.

主权项

1. An annular gasket defining perpendicular axial and radial directions and having a body including a radially outer, sealing side and a radially inner, anchoring side, the gasket comprising:
an anchoring portion disposed at the anchoring side and extending radially inwardly, the anchoring portion sized and configured to be received in a groove of a corrugated pipe; a first seal lobe disposed at the sealing side and defining a first lobe tip at a radially outward-most point of the first seal lobe, the first lobe tip axially aligned with the anchoring portion; a second seal lobe disposed at the sealing side and defining a second lobe tip at a radially outward-most point of the second seal lobe, the second lobe tip axially rearward of the anchoring portion; and an anti-roll lip positioned forward of the first seal lobe and extending radially inwardly to the anchoring side.