In the world of high-performance infrastructure, particularly in European District Heating networks like those in the Netherlands, standards are exceptionally high and non-negotiable.
The primary regulation is simple: No flanges. Welds only.
This mandate for weld-only connections poses a major engineering challenge for suppliers of lined piping. Traditional couplings can’t handle the intense, near-lava temperatures of a steel weld without damaging the internal plastic liner and critical components.
That’s why ASOE Pipe – Europe and Africa developed a revolutionary solution: a weldable coupling fitting engineered specifically to protect the liner during the high-temperature welding process.
ASOE’s patented design ensures complete regulatory compliance and superior pipeline integrity by incorporating an ingenious internal cooling mechanism directly into the fitting.
Strategic Nipples: Our coupling features strategically placed nipples located near the weld zone (the area of molten steel).
Water Circulation: These nipples allow cooling water to be circulated into the coupling during the welding process.
Heat Dissipation: This water circulation acts exactly like a car’s radiator system, actively dissipating the heat generated by the weld.
Liner Protection: By circulating water, we effectively shield the internal liner and other critical components from the near-molten steel temperatures. The pipeline remains protected and intact.
This is more than just a clever fitting—it’s a critical advancement that ensures both performance and regulatory compliance in the most demanding environments.
When you’re dealing with high-spec projects, an integrity compromise is not an option. If the welding process degrades the internal lining, the lifespan and reliability of the entire heating system are instantly jeopardized.
The message is clear: If your technology can’t withstand the weld, it won’t make the cut.
ASOE can. We deliver the precision engineering required to meet “weld-only” regulations without sacrificing the long-term integrity of your high-spec pipeline.