Why flare tubing

Flared fittings are also a good option for use with heavy machinery, and industrial and construction equipment. They are the fitting is most commonly used to connect tube or hose in high-pressure and high-temperature applications. Flared fittings are particularly suitable for connecting thin- to medium-diameter wall tubing. They are also the right choice when the fittings will have to endure a lot of stress from pressure. The flare fitting is commonly used world-wide because it is a simple construction.

Flare fittings has a wide variety of applications and are ideal for high pressure hydraulic applications. Flare fittings are ideal for joining both hydraulic tube and hose systems. Additional applications include, Petro-chemical, fertilizers, water and other fluids.

The three main components to the flare fittings are the body, the ferrule, and the nut. These three parts work together to create a metal-to-metal seal when the nut draws the flared tubing, sleeve and fitting body together. A flareless fitting , also referred to as a compression fitting, uses a single ferrule and a nut to make a connection, eliminating the need for flaring. Flareless fittings are common because they can be used with a wide variety of tubing types and because connections are easy to make.

They require less time and care than flare fittings. This can be accomplished with the use of an abrasive cloth screen cloth, sand cloth, emery cloth or nylon abrasive cloth.

Now, place a flare nut over the end of the tube with the threads closest to the end being flared. Insert the tube between the flaring bars of the flaring tool in the appropriate opening for the diameter of the tube being flared. Adjust the height of the tube in the opening in accordance with the tool manufacturer's instructions, to achieve sufficient length of the flare.

Position the yoke with the flaring cone over the tube end and clamp the yoke in place. Turn the handle of the yoke clockwise Figure 9. 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.

Some tools also provide a setting for ironing or burnishing the flare, as a final step to achieve a more consistent flare. 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.

No material e. Standard Tubes 2. Selecting the Right Tube for the Job 3. Design and Installation Data 4. Clean tube to remove all dirt and grit from both O. Assemble tube nut and sleeve on tube. The threaded end of nut and flared end of sleeve must point toward the end of the tube to be flared.

Using the correct flaring tool for the tube size and desired flare angle, flare the tube end. Inspect flare to the dimensions indicated in Fig. In addition , flare should be checked for concentricity, thin out, cracks, nicks, loose slivers, burrs, pits or other defects which may prevent sealing.

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