water submersal leak detection/location
tank for complex assemblies and parts
or dunk tanks are a widely used method for location of leaks in
complex assemblies and products with air bubbles present around
the leaking area.
Most often, differential
pressure or vacuum decay is used first to qualify a tight
part. If the part leaks, simple decay of pressure does not show
the leakage path. If a part fails the quantifiable test then one
method of detecting the leak path is to submerge in water and look
All of these examples
use the technique of submerging the part in water. Some of these
examples were used as the only leak test method. All of these examples
had complex sealing requirements prior to the pressure being applied.
Each of the systems
locate the part or assembly into a fixture. The assembly is then
clamped into place either by hand operated toggle clamps or automatically.
Some sealing areas and the length of seal are considerable, requiring
significant seal forces to both compress the seal and overcome the
forces generated by the internal pressure.
In all instances an
operator makes a subjective visual check as to whether the part
is good or bad.
TQC specialise in leak
testing and detection equipment and use Nolek test measurement units
as standard for air decay leak testing..
you have any leak detection, measurement or test requirements, in any current
projects that you are already looking at, or you are considering improvements to your
facilities in the near future, call us and we will be happy to offer our professional
advice & visit you at your site.