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Vacuum
Leak Detector (VLD)
Pin
Point Leaky Tubes
1/4 to 3-Inch OD |
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| The Vacuum Leak
Detector (VLD) is a simple test instrument
used by manufacturers and users of
condensers, heat exchang-ers and other
tubular apparatus to identify leaky
tubes. One man does the job. He seals
the far end of each tube with a snap
type tube plug, then he presses the
rubber coated nozzle into the near
end of the tube and depresses the
trigger. Compressed air flows through
a venturi chamber to produce a vacuum
in the tested tube. When this vacuum
reaches a satisfactory level, he releases
the trigger. A steady gage reading
indicates a good tube. A falling vacuum
indicates a leaky tube. Using a 90
PSI dry clean air, a typical tube
(1-Inch OD x 20 Ga. and 20-Feet long)
can be tested in 6 to 8 seconds. Tool
weighs 2 lbs. and is equipped with
a muffler so it operates quietly even
in confined areas. |
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