The monitor can equally be used to check purge
gas quality from the main source as well as from
the exhaust end of a purging system and to find air
leaks in purging hose connections anywhere in a
system.
Due to the constant upward trends in Quality
Control procedures, there is growing pressure
on certain Industries to carry out their welding
in the absence of oxygen to an ever increasingly
lower level. Metals such as stainless steel, titanium,
zirconium and nickel alloys are now available to
these industries to ensure the greatest strengths,
the highest resistance to corrosion and of course
the lowest failure rates.
These metals are commonly welded with the
GTAW (TIG) process that needs the arc and its
surrounding zone to be shielded with a high
specification inert gas that has the minimum
amount of oxygen. If the welds and their adjacent
metal become oxidised, which leads to a lower
resistance to corrosion and that has to be prevented.
For this purpose, Weld Purge Monitors® were
invented in the 1970’s to measure the oxygen levels
for welding by World Leading Weld Purging Experts
Huntingdon Fusion Techniques HFT®. At the
time, 100 parts per million of oxygen in argon was
deemed to be a good level for most stainless steel
and other metals, however research shows that it
has become necessary these days to try to attain a
purity approaching 1 ppm of oxygen in argon when
shielding the welds zones in front and behind.
HFT® has a Family Range of PurgEye® Weld Purge
Monitors® for every application. The range includes
hand held, battery operated monitors and mains
powered monitors, which can read oxygen levels
from atmospheric concentrate, right down to 1 ppm.
Ron continues: “All of Huntingdon Fusion
Techniques HFT®’s Weld Purge Monitors® and
Inflatable Tube, Pipe and Pipeline Weld Purging
Systems are manufactured in the UK. We do not
sacrifice on quality. We guarantee to help you achieve
zero colour welds, time and time again.”
.
Huntingdon Fusion Techniques
HFT® have a worldwide Exclusive
Distributor network which can be
found at www.huntingdonfusion.com.
TUBE NEWS November 2017 5