Aircraft fluid conduit comprising thermoplastic piping and connector

An aircraft fluid conduit comprising:

• a piping of thermoplastic material comprising a connection end and an opposite end, the connection end having a piping external surface and a piping internal surface defining an internal diameter and a piping axis, the piping internal surface configured to be in contact with a fluid;
• a connector to be mounted in the piping, connection end of the piping by a translational movement along the piping axis, the connector having a body extending along a connector axis and comprising a connecting portion configured to extend into the connection end of the piping, the connecting portion comprising a connector external surface configured to be in contact with the piping internal surface and a connector internal surface defining an internal diameter configured to be in contact with the fluid, the connecting portion of the connector comprising a free longitudinal end;
• wherein the free longitudinal end of the connector comprises at least two spaced apart projections on the connector external surface with each projection comprising a radial stop surface and a titled portion arranged so that that tilted portion enters the connection end of the pipping before the radial stop surface;
• and
• wherein the free longitudinal end of the connector comprises (a) a first configuration prior to assembling with the piping, in which the free longitudinal end has a beveled portion on the connector internal surface having a first internal diameter that is larger than a second internal diameter of the connecting portion away from the beveled portion, and (b) a second configuration after mounting into the connector end of the piping, in which the first internal diameter at the beveled portion is substantially constant with the internal diameter of the piping.

A method for assembling a conduit comprising a piping and a connector comprising:

• heating the piping, the piping made of a thermoplastic material comprising a connection end and an opposite end, the connection end having a piping external surface and a piping internal surface defining an internal diameter and a piping axis, the piping internal surface configured to be in contact with a fluid;
• heating the connector, the connector having a body extending along a connector axis and comprising a connecting portion having a connector external surface configured to be in contact with the piping internal surface and a connector internal surface defining an internal diameter configured to be in contact with the fluid, the connecting portion of the connector comprising a free longitudinal end, wherein the free longitudinal end has a beveled portion on the connector internal surface having a first internal diameter that is larger than a second internal diameter of the connecting portion away from the beveled portion;
• inserting the free longitudinal end of the connector into the connection end of the piping;
• allowing the piping and the connector to cool to radially deform the connection end of the piping and the beveled portion of the connector and for the first internal diameter at the beveled portion to be substantially constant with the internal diameter of the piping.