In many industries, hazardous and harmful exhaust gases are generated during essential production processes. These gases are typically routed to treatment systems located in different areas of the plant. The safe transport of such media across industrial facilities places high demands on materials, design, and long-term performance of piping systems.
At an industrial plant in South America, corrosive exhaust gas containing approximately 10 % SO₂ is transported at temperatures of up to 90 °C through a high-velocity pipeline to a gas treatment system.
The original pipeline was entirely manufactured from fiberglass-reinforced plastic (FRP). After only a few years of operation, leaks occurred along the entire length of the pipeline.
Consequences included:
These measures did not resolve the root cause of the failures.
The operating conditions placed significant demands on the piping system:
The combination of temperature and corrosive load exceeded the performance limits of the existing FRP system.
To replace the existing system, a dual laminate piping solution was implemented. This design combines the mechanical strength of GFK with the chemical resistance of thermoplastics.
The system design includes:
The system was specifically engineered for the given operating conditions.
The new piping system is designed for continuous transport of corrosive exhaust gases. It addresses the chemical exposure from SO₂ as well as the elevated temperatures with a targeted material combination suited to the application.
The dual laminate solution provides a technically adapted approach to mitigate the previously observed material-related failures.
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