To KRnet Attn: John Gotschall
On the rigid installations, that you described, with no vibration,
whatsoever, Consider that all metals expand and contract, via
temperature changes. Engine oiling systems have a rather large
temperature change. You will never see the expansion and contraction
of that little copper tube, but it is happening. This causes " Work
Hardening ", of the copper tube, just as any metal being stressed by
vibration, bending forces, etc. At some point, these stresses will
cause any metal to fail at the point of concentrated stress. The loop
is there to spread out, or minimize, any fatigue of the tube at any
one single point. We all have choices, but why would anyone want to
bet their life on such matters?
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