Danfoss SONDEX®

Heat Exchangers

plate condensers

Our SONDEX® plate condensers are the perfect choice for special applications that regular plate heat exchangers cannot handle. Designed to handle high-volume vapor flows, this product features a large inlet for the vapor stream. This, combined with a short residence time creates the optimal condensation conditions– even for low-pressure vapor duties.

Applications that demand flawless condensation conditions are easily managed using our customized standard, semi-welded, and brazed SONDEX® condenser solutions. For low-pressure vapor duties, our specialized condenser plate design accommodates large vapor volumes while maintaining the thermal performance of the plates.


Features and benefits

  • Designed specifically for demanding condensation duties that benefit from a special asymmetric plate design that is unavailable for regular heat exchangers.
  • Experience the high thermal efficiency of our SONDEX® heat exchangers and enjoy peace of mind with an ideal turbulent flow that reduces the risk of fouling.
  • Special Multi-gap plate design that can lower the energy consumption considerably for condensation duties that differ in flow volume.

Technical specifications

  • Connections from DN200 to DN800 (8" to 32")
  • (Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards)
  • Plate materials: AISI 304/316, titanium, SMO, Hastelloy*
  • Gasket materials: EPDM-HT, NBR-HT*
  • Plate heights up to 2.3 m (7.5 ft)
  • Flow rates up to 800 m3/h (3,522 gpm)
  • Working pressure up to 16 bar (145 psi)
  • Working temperatures from -20 °C to 180 °C (-4 °F to 356 °F)

*other materials available upon request



  • Dairy/food/beverage industry
  • Sugar industry
  • Biogas industry
  • Pulp and paper industry
  • Heavy industry
  • Mining industry
  • Petrochemical industry
  • Chemical industry

How does a SONDEX® plate heat exchanger work?


What kind of heat exchanger is right for me?

The choice of heat exchanger depends on many factors. Our skilled sales engineers design the heat exchanger with the appropriate dimensions and correct specifications based on your input and requirements, to ensure that you receive a quality solution that performs optimally.

Which certificates are available for the heat exchangers?

Our heat exchangers are approved and certified according to industry standards and requirements. For specific details, please reach out to your local SONDEX® brand sales representative.

Where can I get a price list?

Please contact your local SONDEX® brand sales responsible.

How can I get a quotation?

Please contact your local SONDEX® brand sales office. For the most accurate quotation, please prepare the following data:

• Duty,
• Type of media,
• Pressure drop,
• Flow rate,
• Working pressure,
• Thermodynamic properties, Temperature,
• Working temperature.


What would you like to know more about? We offer a wide range of informative content relating to our products. You can find general information about our products in brochures, technical specifications on data sheets, and various instructions in operating and maintenance guides.

Want to know more?

Please get in touch with your local contact person for more information and learn how Danfoss can help improve your business. Additionally, please feel free to send us a mail.

Contact us