Verbesserungen an Rohrverbindungen von koaxialen Rohren.

摘要

The disclosure relates to a tube coupling for co-axial tubing (16) including a body (10) having a throughway (11) open at one end to receive an end portion of a length of co-axial tubing. The throughway has an annular seat (19) spaced from the open end to receive the outer tube (17) of the co-axial tubing and a tube locking means (22) disposed between the seat and the open end to receive and lock the tubing in the throughway. A conduit (12) is mounted concentrically in the throughway and is connected integrally (13) with the coupling body to receive an inner tube (18) of the co-axial tubing to provide a separate passageway extending concentrically within the throughway.