A coupling assembly is provided such that a conduit having an annular bead and
an annular seal can be slidably inserted into a specially formed port. The port
is provided with a series of beveled surfaces that accommodate the seal in such
a way that the conduit can be slidably inserted with a reduced risk of seal extrusion.
An anchor plate is provided for bearing down on a side of the annular bead opposite
the port in order to hold the conduit in place after insertion. The coupling assembly
can include two or more conduits inserted into respective ports having the series
of beveled surfaces. According to one embodiment, the port(s) also includes a counterbored
surface at a depth of the port at or near where the end of the conduit reaches.