The final flared tube end should have a smooth, even, round flare of sufficient length to fully engage the mating surface of the flare nut without protruding into the threads ( Figure 9.5). Self-centering yoke of Shock Proof tempered malleable steel makes S.A.E. Some tools also provide a setting for ironing or burnishing the flare, as a final step to achieve a more consistent flare. Flares all standard sizes of soft copper, brass or aluminum tubing. Care should be taken not to over-tighten the cone and cause cracking or deformation of the tube and/or the tool. This lowers the flaring cone and forces the lip of the tube against the base of the flaring bar to create an angled flare that will mate securely with a corresponding flare-type fitting. Turn the handle of the yoke clockwise ( Figure 9.4). Position the yoke with the flaring cone over the tube end and clamp the yoke in place. Adjust the height of the tube in the opening in accordance with the tool manufacturer's instructions, to achieve sufficient length of the flare. Insert the tube between the flaring bars of the flaring tool in the appropriate opening for the diameter of the tube being flared. Now, place a flare nut over the end of the tube with the threads closest to the end being flared. This can be accomplished with the use of an abrasive cloth (screen cloth, sand cloth, emery cloth or nylon abrasive cloth). Dirt, debris and foreign substances should be removed from the tube end to be flared by mechanical cleaning. Reaming Prior to Flaring the Tube Endįailure to complete either of these steps can, lead to an inadequate seal of the flared joint and, ultimately, to joint failure. OTC 4503 Double Flaring Tool Kit - Designed for double or single flare in copper, aluminum, soft steel brake line, and brass tubing (to 45 degrees). Tube that is out of round prior to flaring should be resized back to round.įigure 9.3.
Copper tubing flare tool full#
After cutting, the tube must be reamed to the full inside diameter leaving no inside burr ( Figure 9.3). The copper tube must be cut square using an appropriate tubing cutter. It is possible to flare Types K, L or M rigid or hard temper tube, though prior to flaring it is usually necessary to anneal the end of the tube to be flared.
When flaring Types L or K copper tube, annealed or soft temper tube should be used. The tool usually consists of flaring bars with openings for various tube sizes and a yoke that contains the flaring cone and a clamp to grip the flaring bars.
Make sure to use a tool that matches the outside diameter of the tube being flared and that has the appropriate flare angle, commonly 45º (the physical characteristics of which should be in accordance with the Society of Automotive Engineers SAE J533 Standard - Flares for Tubing). A flare joint should be made with an appropriate tool such as those supplied by a number of tubing/piping tool manufacturers.
0 kommentar(er)
