CALORPLAST all-plastic immersion-type grid coils are suitable for heating and cooling of concentrated inorganic acids, cooling of alkaline corrosive liquids, heating or cooling of high-purity media, or aggressive and scale depositing liquids in tanks or other process equipment. They are integral components in the surface finishing and the chemical process industries. PVDF grid coils can be used for steam heating of corrosive media such as inorganic acids utilized in the steel picking industry.

CALORPLAST  thermoplastic heating and cooling grid coils are fabricated from standardized tubular modules which allows an optimal design to meet the customers’ specifications. All fittings and support elements are also designed according to the customers’ requirements.

The tube modules are produced using a unique manufacturing process, insuring minimal pressure loss, while providing high heating/cooling performance.

The modular design allows us to customize the heat exchanger fabrication to create the most efficient cooling or heating flow to meet our customers’ needs. The modules have very high surface area in a very compact space so that the Calorplast heat exchangers utilize minimum space in the tank.

Each CALORPLAST heat exchanger is calculated and optimized using a computer-aided simulation allowing us to create the most reliable configuration at a reasonable price.

Our heat exchangers are easily cleaned using pressurized water, steam or chemicals insuring a long operating life.

Further details:

  • Possible materials: PE-RT, PP and PVDF
  • Temperature range: -22 to 284 °F (depending on the material chosen)
  • Working pressure range: 45.5 to 232 oF (depending on the material chosen and the operating temperature)

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Gas cooling/heating/condensing

  • Heating and cooling of corrosive fluids such as highly concentrated inorganic acids in open tanks
  • Heating, cooling, condensing or evaporation of corrosive media in vessels
  • Customized design from modular, pre-manufactured tube sections
  • 10 to >5,380 ft² heat transfer surface
  • For use with water, steam or cooling media


Installed Immersion type Heat-Exchanger in surface treatment installation
(Decker Anlagebau GmbH)

– High cooling and heating efficiency
– Flexible and compact design
– Fully corrosion resistant
– Can be used for steam heating
– Best in class flow efficiency
– Easy maintenance and cleaning
– Over 30 years of experience