Spiral heat exchangers

  • Overview
  • Documents
  • Related products
  • FAQ

Exceptionally well-suited for sludges, slurries, waste water, fouling, liquids with high viscosity, and liquids that contain fibers and solids, our SONDEX® spiral heat exchangers are the definitive solution for applications that require treatment of challenging fluids. The design allows for a countercurrent flow that makes it possible to achieve very close temperature approaches.

Since we use coiled metal sheets instead of tube bundles, we can achieve very high thermal performance without sacrificing the channel gap that lets the media flow unimpeded.

The spiral coil itself also contributes to the turbulent flow, and the single-channel design helps alleviate fouling with a “self-cleaning” effect. Accumulated deposits create local increases in velocity, creating a scrubbing effect that is enough to loosen the build-up in fouling in most cases. This allows our SONDEX® spiral heat exchangers to operate in very long sessions without maintenance or cleaning.

Some media, however, are so challenging that the heat exchanger requires more frequent maintenance and cleaning. With this in mind, we have designed hinged covers that are sealed with C-clamps, creating a swing door that is very easy to open and close without any special tools required, letting you access the entire coil for inspection and cleaning.

Features and benefits

Single-channel design that generates high shear rates which contribute to a self-cleaning effect, preventing clogging of the unit. Spiral heat exchangers are the perfect solution for challenging, high-viscosity media.

The channel size is selected to fit the flow and qualities of the media. The many variations in diameters and widths of the spiral coil allow for many different combinations, which mean that we can create the optimal solution for every duty.

Designed to handle a very aggressive temperature program and with a wide range of materials and plate thicknesses available, we customize each spiral heat exchanger to match the requirements of any application.

Limited need for maintenance and cleaning ensures extended operational uptime. If the need for cleaning arises due to particularly difficult media, the hinged covers provide easy access to the entire heat transfer surface.

Very compact solutions, our spiral heat exchangers have minimal space requirements. Despite their small stature, the long, curved flow paths allow for very high heat transfer coefficients up to twice as high as their shell and tube counterparts.

Applications

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

Technical specifications

  • Connections from DN32 to DN300 (1 1/4" to 12")
  • (Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards)
  • Shell materials: Carbon steel, stainless steel
  • Spiral materials: Carbon steel, stainless steel
  • Working pressure up to 16 bar (145 psi)*
  • Working temperatures from -20 °C to 200 °C (-4 °F to 392 °F)

*Higher pressure available upon request

Spiral heat exchangers

SONDEX® spiral heat exchangers are the ultimate solution for even the most challenging, high-viscosity media.

Documents

Documents
Type Name Language Valid for Updated Download File type
Brochure A world of heat exchangers English Multiple 25 Jan, 2023 6.9 MB .pdf
Brochure A world of heat exchangers English Multiple 13 Feb, 2024 7.1 MB .pdf
Brochure A world of heat exchangers Italian Italy 03 May, 2022 4.8 MB .pdf
Brochure A world of heat exchangers Hungarian Hungary 15 Feb, 2023 1.8 MB .pdf
Brochure A world of heat exchangers English United States 08 Jul, 2021 19.0 MB .pdf
Brochure A world of heat exchangers Latvian Latvia 28 May, 2020 7.1 MB .pdf
Brochure A world of heat exchangers Romanian, Moldavian, Moldovan Romania 16 Nov, 2022 4.1 MB .pdf
Brochure Eine Welt der Plattenwärmetauscher German Multiple 06 Jul, 2021 14.8 MB .pdf
Brochure SONDEX® Free Flow sugar brochure English Multiple 22 Jun, 2020 7.7 MB .pdf
Brochure SONDEX® Free Flow sugar brochure English Multiple 12 Feb, 2024 7.8 MB .pdf
Data sheet SONDEX® Spiral heat exchanger - SonSPV English Multiple 25 Oct, 2022 769.7 KB .pdf
Brochure Spiral heat exchanger English Multiple 12 Feb, 2024 4.5 MB .pdf
Brochure Spiral heat exchanger English Multiple 15 Oct, 2021 4.5 MB .pdf
Brochure Spiral heat exchanger Italian Italy 03 May, 2022 3.3 MB .pdf
Brochure Spiral heat exchanger Slovak Slovakia 03 Jun, 2021 7.3 MB .pdf
Brochure Spiral heat exchanger German Multiple 14 Mar, 2022 4.5 MB .pdf
Brochure Wymienniki ciepła Sondex Polish Poland 19 Jul, 2019 1.5 MB .pdf
Brochure Брошура_Вдосконалені рішення теплообміну Ukrainian Ukraine 01 Sept, 2022 3.2 MB .pdf

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FAQ

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.

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.

Please contact your local SONDEX® brand sales responsible.

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.