AquaPLEX is a unique material that requires special welding processes and proper pickling and passivation procedures after complete vessel fabrication to be successful. It is not enough to have experience with other grades of stainless steel or code certified welders.
The unique characteristics of AquaPLEX have resulted in
the application of several new welding technologies in
PVI's manufacturing facility. PVI now employs synergic
pulse welding machines that automatically and instantly
manage the arc current and voltage based on the
welding speed to optimize the size and quality of the
welds. PVI also utilizes 6-axis robotic welding to ensure
consistent high quality welds across the wide variety of
welding operations required for the family of AquaPLEX
To return AquaPLEX to its
fully passive condition after vessel fabrication, PVI utilizes its in-house chemical
processing capability. The vessels are completely
immersed in a time, temperature and concentration
controlled pickling and passivation solution. When
rinsed with purified water and exposed to air, the
AquaPLEX reacts with oxygen to create the oxide layer
responsible for its lifelong corrosion resistance.
In developing the manufacturing processes for AquaPLEX, PVI consulted with a team of world class engineers and scientists to assist in the material selection,
product design, welding technology, vessel fabrication, chemical processing and testing.