Resisting Damage from Corrosive Gases
Switzerland-based company Air Fröhlich specializes in producing air and gas heat exchangers used in incinerators and power stations. They utilize Teflon™ fluorocarbon films to protect heat exchangers from corrosion.
Common corrosive gases, like ammonia, hydrogen chloride, chlorine, and methylamine, can damage or destroy metal. They also damage skin, eyes, respiratory tracts, and other parts of the body on contact. Containers, equipment, installations, and building components not treated with coatings that repel corrosion risk serious damage.
To avoid these issues, the company uses customizable Teflon™ films to fit complicated, gas-carrying duct parts. Both Teflon™ FEP (fluorinated ethylene propylene) and Teflon™ PFA (perfluoroalkoxy) can be heat sealed, welded, laminated, and applied at high temperatures as perforated sheets for heat exchanger tube separation.
Protecting Systems, People, and the Environment
The characteristics inherent in Teflon™ films makes them ideally suited for environments that handle caustic agents and chemicals.
Those properties include:
- Corrosion and abrasion resistance
- Temperature resistance up to 260 °C (500 °F) for Teflon™ PFA film and 205 °C (401 °F) for Teflon™ FEP film
- Durability and repairability