3
Heating Cable Repair
42
|
nVent.com
Note: Some working environments may have
restrictions on allowable pressures. Any pressure
above 5 psi will show leaks.
Use liquid leak detector or soapy water to look for leaks
in any of the brazed sleeve joints (sleeve to joint body
and sleeve to corrugate). Be careful not to introduce
excessive bubbles when applying liquid leak detector or
soapy water from bottle (Figure 50).
If bubbles are found, release the pressure, unhook the air
fitting, and repair the braze.
Figure 50: Test brazed areas for leaks