Stab-type coupling with conduit inner diameter seal

摘要

A stab-type coupling (10) for connecting a conduit in fluid communication with a fluid receiving article or another conduit includes a coupling body (12) having an internal recess (16). A stiffener assembly (34) is positioned in the recess (16) and includes a tubular member (36) for insertion into a bore (CB) of a conduit (C) inserted into the recess (16). The stiffener assembly (34) also includes a radially enlarged retaining and spacing member (48) connected to the tubular member (36) and located in an axially inner region of the recess (16). The retaining and spacing member (48) includes a conduit end receiving channel (74) defined therein for receiving a conduit end (T) therein. The retaining and spacing member (48) also includes an integral gripping element (76) that engages an outer surface (S) of a conduit (C) seated in the groove (74) to prevent its withdrawal therefrom. A conduit inner diameter seal (40) is positioned concentrically around the tubular member (36) and prevents fluid passage between the tubular member (36) and a conduit inner surface defining the conduit bore (CB). A recess inner diameter seal (52) is positioned concentrically around the radially enlarged retaining and spacing member (48) to prevent fluid passage between the retaining and spacing member (48) and an inner surface (22) of the conduit body (12) defining the conduit receiving recess (16).