- Depending upon the circuit to be done the u-turns are brazed on the copper tubes. Also the inlet and outlet pipes made of copper are brazed according to the circuit on the copper tubes. The brazing is done with oxy acetylene flame and selected copper brazing rods/silver rods depending upon the application.
- We use gas flux resulting in brazing done in an inert atmosphere around the joint, this prevents the oxidation process near the joints.
- The entire coil is tested at 400 - 450 psi for any leakages at the joints, 'U' bends, tubes, distributors and headers.
- During the process of brazing the coils are purged by nitrogen to ensure the cleanliness and quality of coil.