Used in applications such as process heaters and furnace reformers, 3M Nextel Ceramic Textiles can provide improved temperature resistance to internal and external tube seals and expansion joints.
Nextel ceramic textiles can also be used as heat shields for radiant coils to help prevent coke formation and reduce premature aging of the tube surface. They are oxidation resistant, chemically inert, lightweight, flexible, flame resistant, and electrically insulating at high temperatures.
- Heat resistant up to 2372°F (1300°C)
- Good dynamic thermal and mechanical insulation properties
- Low shrinkage (less than 3% over 15 hours at 2372°F (1300°C))
- Resistant to corrosion and abrasion
- Long life in high temperature environments
- No residual acids or chlorides to leach out and cause etching of metal
Engineered to operate at temperatures 900°F–2372°F (482°C–1300°C), tube seals made from Nextel ceramic fabrics 312 and 440 maintain their shape in environments found in process heaters and furnace reformers, while helping to prevent the formation of harmful emissions. Because they are flame resistant, they are also a safety measure against potentially damaging flames from a draft fan failure.
Expansion joints in petrochemical facilities are typically subject to extreme temperatures, high pressures, vibration and exposure to aggressive chemicals. Nextel ceramic textiles are manufactured to survive these kinds of harsh operating conditions, to help ensure equipment reliability and extend service life.
Nextel ceramic fabrics are used in applications such as radiant coils, to help decrease the formation of coke, while helping to prevent premature aging of the tube skin.