Hydraulic lines
The photo shows hydraulic lines which are being flame brazed.
For the copper to copper connections, the phosphorus-containing alloys BrazeTec Silfos 2 (working temperature ca. 740°C) or BrazeTec Silfos 94 (working temperature ca. 760°C) can be used.
Due to the phosphorus content of the BrazeTec alloys, no flux is required when brazing copper to copper.