Standard 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.

We have one of the largest plate portfolios in the world and we customize each heat exchanger to meet your exact requirements. The versatile design and high thermal efficiency make them the perfect solution for a wide range of applications.

Features and benefits

  • Experience the benefit of an individually customized solution that perfectly matches your requirements and lowers your energy consumption.
  • High performance and a low pressure drop eliminate unnecessary burdens on your system and optimize overall system performance.
  • We design single-pass solutions when possible, as they are the preferred choice for almost all duties. With all connections on the head you do not need to disconnect the heat exchanger from the piping to perform inspection, cleaning, or service.
  • The design results in a compact solution with a small footprint, simple installation, and easy access for maintenance.

Technical specifications

  • Conections from DN25 to DN600 (1″ to 24″)
  • 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 lengths up to 5.5 m (18 ft)
  • Flow rates up to 7,200 m3/h (31,700 gpm)
  • Working pressure up to 35 bar (500 psi)
  • Working temperatures from -20 °C to 180 °C (-4 °F to 356 °F)

*Other materials are available upon request.

SONDEX® semi-welded
plate heat exchangers

Our SONDEX® semi-welded plate heat exchangers are the prime choice for challenging applications that involve aggressive media or high pressure. The semi-welded plate heat exchangers are very versatile which means that they can easily be configured for use in different industries and applications that involve challenging media, such as chemical processing.

We customize each heat exchanger according to your specifications and offer durable solutions designed to withstand extreme conditions and minimize the risks of operation.

You can safely operate with hazardous or aggressive media, high pressure, or extreme temperatures that are unsuitable for regular fully gasketed heat exchangers. We design to give you peace of mind.

Features and benefits

  • High efficiency means that fewer plates are needed for high performance and consequently lowers the hold-up volume. Fewer plates also lowers the cost of each heat exchanger, as an added bonus.
  • Engineered to use smaller amounts of potentially hazardous media, the SONDEX® semi-welded range is a safe and responsible choice for demanding duties.
  • Unique gasket system intended for high working pressures and vacuum applications. A closed gasket groove keeps the gasket firmly in place and prevents misalignment of the plate pack during assembly and operation.

Technical specifications

  • Connections from DN65 to DN500 (2½” 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*
  • Ring gasket materials: EPDM-HT, NBR-HT, Viton, Chloroprene, PTFE*
  • Plate heights up to 3 m (9.8 ft)
  • Flow rates up to 5,000 m3/h (22,014 gpm)
  • Working pressure up to 30 bar (450 psi)
  • Working temperatures from -20 °C to 180 °C (-4 °F to 356 °

*other materials available upon request

SONDEX® Free Flow
plate heat exchangers

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 customize 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.

Technical specifications

  • Connections from DN25 to DN300 (1″ to 12″)
  • (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 gaps from 5 mm to 20 mm (0.2″ to 0.8″)
  • 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® sanitary
plate heat exchangers

Our SONDEX® sanitary plate heat exchangers use FDA compliant materials and are designed for use in food, dairy, and beverage applications as well as other applications with strict sanitary requirements. We have the in-depth process knowledge and extensive experience needed to engineer hygienic, high-performance solutions.

We care greatly about your end product and take the necessary steps to ensure the highest output quality. Each solution is designed based on your specifications to provide the perfect conditions for your product.

Features and benefits

  • Heat exchanger solutions that adhere to the strict hygienic demands of the industries and complies with FDA material standards.
  • Plate technology made to provide the highest output product quality. We ensure gentle media treatment during processing with precise flow control, perfect temperature profiles, and the optimal residence time for all applications.
  • Cladded or stainless steel frames designed to be easily accessible for quick and trouble-free inspection, maintenance, or cleaning – including cleaning in place (CIP).
  • Enjoy huge savings on your power consumption with our regenerative pasteurizers that can recycle up to 95% of the energy.

Technical specifications

  • Connections from DN25 to DN800 (1″ 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, Viton*
  • Plate heights up to 3.5 m (11.5 ft)
  • Flow rates up to 1,600 m3/h (7,045 gpm)
  • Working pressure up to 25 bar (363 psi)
  • Working temperatures from -20 °C to 180 °C (-4 °F to 356 °F)

*other materials available upon request

SONDEX®
plate evaporators

Our SONDEX® plate 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.

Our standard, semi-welded, and brazed SONDEX® plate heat exchangers are outstanding choices for standard evaporation duties.

However, certain applications prove unsuitable for regular heat exchanger types. To help you obtain unsurpassed product quality, we have created exclusive evaporator plates tailored to meet the challenges presented by advanced evaporation applications.

Features and benefits

  • Special plate design featuring an extra-large inlet connection for steam. Steam consumption can be reduced when operating with multi-stage evaporators, as the product vapor will serve as the heating media.
  • Flexible design that makes it easy to increase capacity by adding additional cassettes or decrease it to save energy. Low residence time leads to perfect evaporation conditions and superior product quality.
  • High performance, even with low temperature differences between the media, which is especially great for mechanical vapor recompression (MVR) and thermal vapor recompression (TVR).

Technical specifications

  • Connections up to DN600 (24″)
  • (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 1.7 m (5.6 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

SONDEX®
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