Flaring copper tubing is a fundamental skill for any plumber, HVAC technician, or do-it-yourselfer. It’s a relatively simple process, but it requires the right tools and techniques to ensure a leak-free connection. In this article, we’ll provide a step-by-step guide on how to flare copper tubing, along with some tips and troubleshooting advice to help you achieve perfect flares every time.
First, you’ll need to gather the necessary tools. You’ll need a flaring tool, a tubing cutter, a reaming tool, and a deburring tool. You’ll also need some flux and solder. Once you have all of your tools, you can start by cutting the copper tubing to the desired length. Make sure to cut the tubing cleanly and perpendicular to the length of the tubing. Next, use the reaming tool to remove any burrs from the inside of the tubing. This will help to ensure a good seal when you flare the tubing.
Now, you’re ready to start flaring the tubing. Insert the tubing into the flaring tool and tighten the tool until the tubing is securely held. Next, apply a small amount of flux to the inside of the tubing. This will help the solder to flow smoothly when you make the flare. Now, you can start flaring the tubing by turning the handle of the flaring tool. As you turn the handle, the tubing will start to expand and form a flare. Continue turning the handle until the flare is the desired size. Finally, remove the tubing from the flaring tool and apply solder to the inside of the flare. This will help to seal the flare and create a permanent connection.
Flaring the Tubing
Step 1: Prepare the Tube
Cut the copper tubing to the desired length using a tube cutter. Remove any burrs or sharp edges from the cut end using a file or reamer.
Step 2: Align the Tool
Place the tubing into the flaring tool and align the end of the tubing with the center of the flaring cone. Ensure that the tubing is perpendicular to the flaring tool.
Step 3: Snug the Cone
Tighten the cone onto the tubing using the threaded shaft of the flaring tool. Apply enough force to hold the tubing securely, but avoid overtightening.
Step 4: Tighten the Clamp
Tighten the clamp around the tubing to prevent it from slipping during the flaring process. Ensure that the clamp is placed close to the edge of the tubing to provide maximum support.
Step 5: Flare the Tube
Slowly and evenly tighten the handle of the flaring tool to flare the tubing. Observe the flare as it forms and stop tightening when the flare reaches the desired size. The following table provides guidelines for flaring sizes:
| Tube Size | Flare Size |
|---|---|
| 1/4 inch | 3/8 inch |
| 5/16 inch | 1/2 inch |
| 3/8 inch | 5/8 inch |
| 1/2 inch | 3/4 inch |
| 5/8 inch | 7/8 inch |
| 3/4 inch | 1 inch |
Continue tightening the handle slightly to smooth out the flare and ensure a tight seal.
How to Flare Copper Tubing
Flaring copper tubing is a common task in plumbing, refrigeration, and other industries. It involves expanding the end of a copper tube to create a flared lip that can be connected to a fitting or another piece of tubing. Here are the steps on how to flare copper tubing:
- Cut the tube. Use a tubing cutter to cut the copper tube to the desired length. Make sure the cut is clean and perpendicular to the length of the tube.
- Ream the tube. Use a reaming tool to remove any burrs or sharp edges from the inside of the cut end of the tube. This will help prevent the tube from splitting when it is flared.
- Anneal the tube. Heat the end of the tube with a torch until it glows cherry red. Then, let it cool slowly. This will soften the copper and make it more malleable.
- Flare the tube. Insert the annealed end of the tube into a flaring tool. The flaring tool will have a cone-shaped die that will expand the end of the tube as it is tightened.
- Check the flare. Once the flare is complete, check it to make sure it is the correct size and shape. The flare should be smooth and even, with no cracks or splits.
Flaring copper tubing requires some practice to master, but it is a relatively simple process. With a little patience and care, you can easily flare copper tubing for your plumbing or refrigeration project.
People Also Ask About How to Flare Copper Tubing
What is the purpose of flaring copper tubing?
Flaring copper tubing creates a flared lip that can be connected to a fitting or another piece of tubing. This type of connection is strong and leak-proof, making it ideal for use in plumbing, refrigeration, and other industries.
What tools do I need to flare copper tubing?
You will need a tubing cutter, a reaming tool, a flaring tool, and a heat source (such as a torch) to flare copper tubing.
How do I know if my flare is the correct size and shape?
Once you have flared the tube, check it to make sure it is the correct size and shape. The flare should be smooth and even, with no cracks or splits. You can use a flare gauge to check the size and shape of the flare.
