Copper pipe is the most preferred installation material in the HVAC industry due to its high corrosion resistance, antibacterial properties, wide working pressure range, sealing and low coefficiency of friction. In order not to lose these properties, nitrogen gas is frequently used in copper pipe installation applications.
Welding:
The process surface rising to high temperatures during the copper pipe welding makes the region a compound with oxygen. Nitrogen gas used at the welding point through the pipe at low pressures prevents oxidation.
Sweeping:
Nitrogen gas flow is provided through the pipe in order to remove the slag formed during welding and expel it from the area.
Testing:
Nitrogen gas at 41,5 bar pressure is generally used in the leak tests of fabricated thermal devices and copper pipe installations whose welding is completed.