Abstract: A conduit joint system securing ends of two conduits together includes first and second conduits having first and second flared ends and first and second liners protruding from the flared ends. The liners are joined together so that the flared ends are opposing and spaced from one another and portions of the liners are between the flared ends. An external coupler is configured to receive the flared ends and includes (i) a first flange receiving portion configured to receive the first flared end, (ii) a second flange receiving portion configured to receive the second flared end, and (iii) a body portion extending between the flange receiving portions and configured to receive the portions of the liners between the flared ends. With the liners joined together and with the external coupler receiving the flared ends, and the portions of the liners, the external coupler secures the first and second conduits together.

Abstract: A venting system includes a vent for expelling gases that accumulate between a metal pipe and a plastic liner disposed within the metal pipe. The vent includes a base portion that is configured to be disposed between the plastic liner and a wall of the metal pipe. The base portion has at least one channel extending along the base portion to a central region of the base portion. The vent includes an exhaust portion that protrudes from the central region of the base portion and is adapted to extend through the wall of the metal pipe. The exhaust portion has a central passage that interconnects with the at least one channel of the base portion, such that the vent is configured to vent gases from an interface area between the plastic liner and the wall of the metal pipe to an exterior atmosphere outside the metal pipe.