Metal tube coupling arrangement and method of manufacture

Details Metal tube coupling arrangement and method of manufacture Metal tube coupling arrangement and method of manufacture

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 13/14 (2006.01)

Patent

CA 2343848

An arrangement for locking a metal tube to a hose fitting in which the end of the metal tube is flared to form a generally conical tube end, and the conical tube end is inserted into a fitting to seat against an opposing conical shoulder. The portion of the fitting surrounding the tube is then plastically deformed around the tube firmly and sealingly to grasp the tube, but without scarring a corrosion resistant coating on the tube. A plurality of barbs preferably are formed on the radially outer surface of the flared end of the tube for engaging the fitting when the fitting is crimped over the flared end of the tube and thereby preventing rotation of the tube with respect to the body of the fitting. The other end of the fitting may be crimped or otherwise secured to a constituent part such as a fluid hose.

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