Other Expansion Joint

Teflon Expansion Joint
  Teflon expansion joints are used for corrosive applications when other materials are inappropriate. They are available in 2 Convolution, 3 Convolution and 5 Convolution models, with varying amounts of allowed movement. Is use for high-corrosion chemical -petrochemical systems, abrasive industrial process piping systems, power generation and waste water treatment plants.
 
Stainless steel rectangular expansion
  For low pressure ducts in pollution control, flues, engine and boiler exhausts and gas recovery apparatus.