PIPE GASKET AND METHOD OF INSTALLATION

摘要

A pipe section, comprising:
a length of thermoplastic pipe including a pipe bell end (17), engageable with a spigot
an annular sealing gasket (13) located within a preformed annular groove (15) within the pipe bell end (17) and being retained within the groove (15) in snap-fit fashion.
The gasket (13) has a body (23) formed of a flexible elastomeric material and having a radial centerline (45) passing through an approximate mid-point (47) of the gasket body (13). A relatively rigid ring (43) is located at an embedded location which circumscribes the gasket body (23).
The ring (43) has a cross-sectional diameter which defines a locus of points (51) on an inner surface thereof which is equal to or greater than the internal diameter d 2 of the remainder of the bell end (17) of the pipe which joins the annular groove (15).
The ring (43) is located in front of the centerline (45) between the centerline (45) and the mouth opening (21) of the bell pipe end (17) and adjacent a convex nose section (31) of the gasket body (13).