... Heat Exchanger Tubes: copper, copper-nickel, steel, and stainless steel Casing: aluminum, steel, galvanized steel, etc. Finned Heat ExchangerGeneral Description: • Finned heat ... Water, brine, wet steam, hydraulic oil, lubrication oil, thermal oil, and condensing or evaporation cooling agents are suitable as ... 3. By meas of design variations,large thermal expansions of the tubes are compensated with no ...