connectors
expanded end
Sometimes, copper connectors are used instead of expanding the copper ends.
This is especially with larger pipes where expanding becomes more difficult
because of the thicker wall thickness.
Also, an alternative to using elbows is to just bend the pipes with a pipe bender to suit the
installation requirement. Various bending angles can be achieved with this method. However, the
larger the pipe size, the more difficult this will become.
expanded end
Pipe bend
CAUTION! Do not bend the pipes with hands. This will cause the pipe to collapse at the bending
portion. Use the suitable pipe bending tool.
Manual hand benders allows a maximum size of 3/4". Pipes up to 1-3/8" can still be bended by
using bending machine.
NOTE:
During brazing of copper-to-copper pipes, copper filler rods of 0% silver may be used. It is a good
practice to pass nitrogen gas inside the copper pipes while
brazing to prevent oxidation.
Section: 3 Page 35
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