Copper Tubing

darren paget

New member
Oct 28, 1998
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I think I am going to have to disagree on the use of copper tubing. In
Canada I have only ever seen copper tubing used for RV propane systems.
My 1980 SOB uses copper tubing and I have never had a problem with leaks
or wear. These lines run outside the shell and inside. If the vibration
of the coach is a problem then that is a pretty good vibe and should be
checked out. I would have no problem using copper tubing for the air
system. BTW the copper used is 3/8 for the propane system. My thoughts
not yours. Darren
 
Darren,
The big difference between Propane which is a hydrocarbon based fuel and
air is that the propane will not corrode the copper from the inside out.
Copper is even used in the GMC for the propane lines. The 3/8" type K
copper is much more durable generally using flared type fittings than
the 1/4" that most people have been using for the air lines. The type L
copper is generally used for water service. Rest assured that the use
of copper for air will cause you problems, either thru corrosion or
fatigue of the lines. I will not have it for use in air in my coach and
I am removing it as I rebuild the air system.

J.R. Wright

>
> I think I am going to have to disagree on the use of copper tubing. In
> Canada I have only ever seen copper tubing used for RV propane systems.
> My 1980 SOB uses copper tubing and I have never had a problem with leaks
> or wear. These lines run outside the shell and inside. If the vibration
> of the coach is a problem then that is a pretty good vibe and should be
> checked out. I would have no problem using copper tubing for the air
> system. BTW the copper used is 3/8 for the propane system. My thoughts
> not yours. Darren