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Heating Cable Repair
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Apply flux, then using a neutral flame, braze the
corrugate plug to the corrugate keeping the flame on the
plug (Figure 82).
Figure 82: braze plug to corrugate
Use emery cloth to clean the corrugate plug and the
nylon mesh sanding pad to clean the corrugate. Do not
use emery cloth on the corrugate - it has a thin sheath
and can be easily damaged.
No
te: Always ensure all flux has been removed
from the corrugate to prevent corrosion. Hot water
may be used to remove the flux.
When the joint is clean and cooled, attach the air fitting
to the plug port and pressurize the corrugate to a
maximum of 40 psi (Figure 83).
Figure 83: Pressurize corrugate
Not
e: Some working environments may have
restrictions on allowable pressures. Any pressure
above 5 psi will show leaks.