Free flow plate heat exchangers

  • Overview
  • Documents
  • Related products
  • FAQ

Our SONDEX® Free Flow plate heat exchangers are excellent choices for applications that use media with particle-rich contents, fouling tendency, or high viscosity. We customise each Free Flow heat exchanger to suit your application and media type. The contact-free plate channels ensure an unimpeded flow and long intervals between cleaning.

We set the new standard for improved performance and reliability when your media require gentle treatment and are unsuitable for regular heat exchangers due to viscosity, fouling tendency, or particle contents.

Features and benefits

Gentle treatment and even distribution of the media provide the highest possible product output quality.

High heat transfer efficiency and extended intervals between cleaning ensure operation for an entire campaign with minimum downtime and maximum value for money.

Large plate gap designed to counteract fouling with sizeable plate channels and no stagnant zones.

High thermal efficiency

SONDEX® Free Flow

SONDEX® Free Flow plates feature deep and wide channels that provide enough room for media that contain fibers and particles, or high-viscosity media. The channels allow for efficient heat transfer and an ideal flow.

Applications

  • Dairy/food/beverage industry
    - e.g. food production, like juice and alcohol processing
  • Sugar industry
    - e.g. sugar production, such as concentration of sugar content in sugarcane juice
  • Biogas industry
  • Wastewater industry
  • Pulp and paper industry
  • Mining industry

Technical specifications

  • Connections from DN25 to DN500 (1” to 20”)
  • 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, Viton*
  • Plate heights up to 3.5 m (11.5 ft)
  • Flow rates up to 1,600 m3/h (7,045 gpm)
  • Plate gap from 5 to 12 mm (0.2” to 0.5”)
  • Working pressure up to 10 bar (145 psi)
  • Working temperatures from -20 °C to 180 °C (-4 °F to 356 °F)

*other materials available upon request

SONDEX® Free flow patterns

The SONDEX® Free Flow pattern is designed to treat media that is unsuitable for regular heat exchangers due to high viscosity, fiber and particle contents, or considerable risk of fouling.

Documents

Documents
Type Name Language Valid for Updated Download File type
Brochure A world of heat exchangers Bulgarian Bulgaria 04 Oct, 2024 5.3 MB .pdf
Brochure A world of heat exchangers English Multiple 18 Nov, 2024 7.2 MB .pdf
Brochure A world of heat exchangers Romanian, Moldavian, Moldovan Romania 10 Oct, 2024 9.7 MB .pdf
Data sheet Free Flow Plate Heat Exchangers (DN 25 / 1” - DN 400 / 16”) English Multiple 25 Oct, 2022 3.1 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers English Multiple 01 Sept, 2023 9.6 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers Polish Multiple 13 Sept, 2023 9.2 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers Russian Multiple 17 May, 2024 16.5 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers Danish Multiple 15 Sept, 2023 9.1 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers English Multiple 20 Sept, 2022 9.7 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers Hungarian Multiple 13 Sept, 2023 9.1 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers Chinese (CN) Multiple 17 Jan, 2024 9.6 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers Italian Multiple 01 Aug, 2024 9.1 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers French Multiple 22 Dec, 2023 9.2 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers English Multiple 13 Sept, 2023 9.6 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers German Multiple 17 Jan, 2024 9.2 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers English Multiple 01 Sept, 2023 13.0 MB .pdf
Brochure Gasketed plate heat exchangers - Next-generation heat transfer solutions English Multiple 12 Feb, 2024 5.7 MB .pdf
Brochure SONDEX® Free Flow sugar brochure English Multiple 12 Feb, 2024 7.8 MB .pdf
Brochure SONDEX® Traditional Plate Heat Exchangers English Multiple 12 Feb, 2024 9.4 MB .pdf

Related products

  • if (isSmallPicture) { SONDEX® Condensers- Danfoss; } else if (isBigColumns) { SONDEX® Condensers- Danfoss } else { SONDEX® Condensers- Danfoss }
    Condensers

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

  • if (isSmallPicture) { SONDEX® Plate and shell heat exchangers (SPS)- Danfoss; } else if (isBigColumns) { SONDEX® Plate and shell heat exchangers (SPS)- Danfoss } else { SONDEX® Plate and shell heat exchangers (SPS)- Danfoss }
    SONDEX® Plate and shell heat exchangers (SPS)

    Our SONDEX® Plate and shell heat exchangers (SPS) are perfect choices for condensation and steam heating duties. A fully welded plate pack makes the heat exchangers well-suited for handling aggressive media as well as high pressure levels and temperatures. Less space demanding and much lighter in weight, they are good replacements for shell and tube heat exchangers.

  • if (isSmallPicture) { SONDEX® Free Flow plate heat exchangers- Danfoss; } else if (isBigColumns) { SONDEX® Free Flow plate heat exchangers- Danfoss } else { SONDEX® Free Flow plate heat exchangers- Danfoss }
    Free flow plate heat exchangers

    SONDEX® Free Flow plate heat exchangers are the preferred choice for applications that use media with particle-rich contents, fouling tendency, or high viscosity. Each Free Flow heat exchanger is customised to suit your application and media type, with contact-free plate channels for an unimpeded flow and long intervals between cleaning.

  • if (isSmallPicture) { S188 traditional plate heat exchanger; } else if (isBigColumns) { S188 traditional plate heat exchanger } else { S188 traditional plate heat exchanger }
    SONDEX® Standard plate heat exchangers

    Our SONDEX® standard plate heat exchangers are the ideal choice for a wide range of applications across numerous market segments. Innovative technologies and smart design make our standard plate heat exchangers a stellar investment and the go-to choice for standard duties. With higher heat transfer efficiency and optimisation, these heat exchangers offer the most efficient thermal performance.

  • if (isSmallPicture) { SONDEX® Evaporators- Danfoss; } else if (isBigColumns) { SONDEX® Evaporators- Danfoss } else { SONDEX® Evaporators- Danfoss }
    Evaporators

    SONDEX® evaporators are designed to handle advanced evaporation duties. Using semi-welded plate cassettes, the media are guaranteed to never mix. The plate cassettes are designed to ensure the optimal level of turbulence on both sides, while providing an even distribution of the media for superior performance and product quality.

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.