PENNGUARD® Block Lining System - The most versatile acid resistant chimney lining for fossil fired power plants

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Pennguard® chimney linings are installed on the inside of new and existing FGD and non-FGD power plant chimneys and ducts. Pennguard® chimney linings are designed to last for decades under a wide range of operating conditions, including FGD wet stack operation, and are virtually maintenance free.

Power plants around the world have used Pennguard® chimney linings successfully under a wide range of operating conditions - even in seismic regions.

Hadek supplies the Pennguard® Block Lining System with a full on site QA inspection service and a long term guarantee. A well installed Pennguard® lining will help to maximize the long term availability and minimize the running cost of your power plant chimney.


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  • New Chimney Design resistant to strong earthquakes READ MORE
  • Wet Stack Constructions – Condensation Analysis READ MORE
  • Pennguard© linings, seismic test performance READ MORE

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