Brazing copper pipes
Instruments
- Copper fittings and pipes.

- Pipe cutter or hacksaw for metal.

- Solder and flux for soldering copper connections. It is recommended to use solder and flux from the same manufacturer and the same number.


- Sandpaper.

- Brush for processing pipes from the inside and outside.

- Gas torch or electric soldering iron.

- Gloves that avoid thermal burn.
- Measuring tape and marker.
- Rags and degreaser.
Step-by-step instruction
- Use a pipe cutter or a metal hacksaw to cut the pipe at an angle of 90°. The angle must be observed for the correct connection of the elements.


- After you have cut the required length of the pipe, process the junction of the pipe with a fitting. Use sandpaper. This must be done from the outside of the pipe and the inside of the fitting. For better contact, degrease the junction.


- Before applying the flux, it is recommended to check the elements to be connected by connecting them one into the other. It is also required to check the dimensions of the resulting mounting gap.
- Prepare the required amount of solder, a gas torch, and gently apply the flux to the joining surface of the elements.
In order to determine the required amount of solder necessary to take solder and bend it approximately to the pipe diameter.


- Connect the pipe and fitting by rotating the parts until they stop.

- Remove excess flux with a rag.
- Warm-up connection with a gas burner from the outside of the pipe and fitting joint.
For the connected elements to warm up evenly, it must move the gas burner around the joint. It is important to remember that the flux applied to the metal will collapse if the copper overheats.
- While the joint is warming up, bring the solder to the edge of the mounting gap.
As soon as the solder begins to melt, it is required to move the torch aside to allow the solder to fill the capillary gap.
The solder should melt under the temperature of the heated elements and not under the gas burner.


- After the bent solder will end, it is required to complete the heating of the elements and allow the connection to cool down.
Cooling of the finished seam should be carried out naturally, without artificial airflow or lowering it into cold water.