1.water to water heat exchanger 2.easy to install and maintain 3.environmental protection ... oil, Preheating of seawater for fresh water production, Heat recovery, Heat exchange to air-condition the passengers’ cabins and ... Water, Steam, Acid, CausticF26-55~+230° CAcid, Caustic, FluidTPF0~+160° CConcentrated Acid, Caustic, High-temperature Oil, Steam JQ6B plate heat exchanger for water to water heat ...