Prior to 1970 all of our helium
leak detection had been focused on the repair of cryogenic
vessels in the cryogenic industry. In 1970 we were approached
by the Conoco
VCM plant in Westlake, LA to locate leaking tubes and/or
rolls in their EDC vaporizers. With a msld sensitivity
of 2 x 10-10 atm cc/sec and probe sensitivity
of 2 x 10-8 atm cc/sec we were readily
able to find both the roll and tube leaks not detectable
using conventional
testing methods.
In 1972 we incorporated
and began full time helium leak testing utilizing the mass
spectrometer
leak detector. We have
tested all types of items - listed below are
a few:
Exchangers
Vacuum Jacketed
Piping
Sub-Sea Transmitters
Vacuum Columns
Absorption Units
Tank Floors
Hyper/Hypo Barometric
Chambers
Pipe Welds
Valves
Surface Condensers
Chiller System
Clad Pressure
Vessels
Down-hole Electronics
Packages for oil/gas wells
and
many others!!
In 1999 we added dehydration
by evacuation to our service. In many cases it has proved less
costly and more effective than nitrogen purging. Our personnel,
already
trained in the use of vacuum equipment, applied that technology
to drying of exchangers, chiller systems and columns. Dew-points
are traceable to NIST.
