Gas/gas-bare tube heat exchangers made of mild steel/stainless steel
Gas/gas-heat exchangers made of corrosion resistant materials, such as
fluorinated plastics, glass and nickel alloy
COAX-heat exchangers in corrosion resistant design (teflon lined or enamelled tubes), as water- or steam-heated gas-preheater or as gas-cooler/condenser.
Gas/water-heat exchangers or gas/steam-heat exchangers
(DAGAVO), made of mild steel, stainless steel or nickel alloy.