Semi-welded plate heat exchanger for industrial refrigeration ammonia applications

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Meet application needs with maximum performance

Our semi-welded plate heat exchangers are optimized for industrial applications and include extensive improvements in professional refrigeration. The semi-welded plate heat exchangers from Danfoss is designed for natural refrigerant applications and can be used for applications such as Condensers, flooded and pumped evaporators, Sub-coolers, Desuperheaters, Superheaters, Economizers and Oil coolers. The product range includes the sizes SW19-SW59, with more to come, and can handle temperatures ranging from -40°C up to 150°C (-40°F up to 302°F) and pressure ranges up to 40 bar (300 psi).

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Features and benefits

Excellent heat transfer capabilities

Reliable design - operational safety

Easy product configuration

Comprehensive testing

Part of diversified product range for IR systems

Comprehensive HE2 leak testing

Optimization of overall system design

Danfoss system control experts

High quality product - fully tested

The Danfoss semi-welded plate heat exchanger design has been verified through thermal and mechanical tests. Furthermore, each semi-welded plate cassette and fully assembled plate heat exchanger are thoroughly leak tested with helium before they leave the Danfoss factory.

New plate design delivers excellent heat transfer capabilities

The SW19-59 range features excellent heat transfer capabilities via improved thermal performance due to optimized plate geometry supporting high turbulent natural refrigerant flow enabling a compact design and supporting lower charge for your refrigeration.

New gasket system improves plate pack stability and safety

The new gasket system ensures high gasket stability and optimal plate alignment due to new gasket and gasket grove design, enabling easy and fast service and maintenance. The new design improves the sealing effect and prevents gasket-blow out. Furthermore, the risk of contamination is reduced due to the double gasket barrier that will drain potential leakages outside of the plate pack. The new gasket system is glue free for easy maintenance.

Easy maintenance and service

The new range is easy to service and maintain. Easy access to the plate pack with the non-corrosive nylon roller that makes it easy to slide the follower along the carrying bar. Assembly of the plate heat exchanger is fast and safe thanks to fixed bolt heads and lock bushes which prevent the nut and bolt head from rotating when opening and closing the unit. The enhanced gasket system ensures easy and precise plate pack alignment.

Availability

Our line of Semi-welded plate heat exchangers is available now around the world from our factories in the USA, China, and Europe. Reach out to your local representative.

Watch video

The new series of plate heat exchangers has been optimized for industrial applications and include improvements to both plate design and the gasket system.

Download brochure

The new series of semi-welded plate heat exchangers has been optimized for industrial applications and include improvements to both plate design and the gasket system.

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 Anatomia e Conhecimento dos Trocadores de Calor a Placas SONDEX® Portuguese Multiple 26 Jun, 2019 7.2 MB .pdf
Case story Danfoss semi-welded plate evaporator and air purger applications at the automated cold storage Miratorg English Multiple 01 Jun, 2021 3.1 MB .pdf
Brochure Eine Welt der Plattenwärmetauscher German Multiple 06 Jul, 2021 14.8 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 French Multiple 22 Dec, 2023 9.2 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers Polish Multiple 13 Sep, 2023 9.2 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers Hungarian Multiple 13 Sep, 2023 9.1 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers English Multiple 13 Sep, 2023 9.6 MB .pdf
Operating guide Gasketed and semi-welded Plate type heat exchangers Danish Multiple 15 Sep, 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
Brochure Gasketed plate heat exchangers - Next-generation heat transfer solutions English Multiple 17 May, 2022 5.9 MB .pdf
Brochure Gasketed plate heat exchangers - Next-generation heat transfer solutions English Multiple 12 Feb, 2024 5.7 MB .pdf
User guide Plate Type Heat Exchangers, Single plate and Semi-welded Installation, Commissioning and Maintenance English Multiple 23 Jul, 2019 6.2 MB .pdf
User guide Plate Type Heat Exchangers, Single plate and Semi-welded Installation, Commissioning and Maintenance Italian Multiple 23 Jul, 2019 6.2 MB .pdf
User guide Plate Type Heat Exchangers, Single plate and Semi-welded Installation, Commissioning and Maintenance German Multiple 23 Jul, 2019 6.2 MB .pdf
User guide Plate Type Heat Exchangers, Single plate and Semi-welded Installation, Commissioning and Maintenance Spanish, Castilian Multiple 23 Jul, 2019 6.2 MB .pdf
User guide Plate Type Heat Exchangers, Single plate and Semi-welded Installation, Commissioning and Maintenance Polish Multiple 23 Jul, 2019 6.2 MB .pdf
User guide Plate Type Heat Exchangers, Single plate and Semi-welded Installation, Commissioning and Maintenance Russian Multiple 23 Jul, 2019 6.2 MB .pdf
User guide Plate Type Heat Exchangers, Single plate and Semi-welded Installation, Commissioning and Maintenance Danish Multiple 23 Jul, 2019 6.2 MB .pdf
User guide Plate Type Heat Exchangers, Single plate and Semi-welded Installation, Commissioning and Maintenance French Multiple 23 Jul, 2019 6.2 MB .pdf
User guide Plate Type Heat Exchangers, Single plate and Semi-welded Installation, Commissioning and Maintenance Portuguese Multiple 23 Jul, 2019 6.2 MB .pdf
User guide Plate Type Heat Exchangers, Single plate and Semi-welded Installation, Commissioning and Maintenance Chinese (CN) Multiple 23 Jul, 2019 6.7 MB .pdf
Brochure Semi-welded plate heat exchanger English Multiple 19 Sep, 2023 4.2 MB .pdf
Brochure Semi-welded plate heat exchanger Ukrainian Ukraine 28 Apr, 2020 2.8 MB .pdf
Brochure Semi-welded plate heat exchanger Vietnamese Vietnam 22 Nov, 2019 9.0 MB .pdf
Brochure Semi-welded plate heat exchanger Turkish Turkey 06 Aug, 2019 2.8 MB .pdf
Brochure Semi-welded plate heat exchanger French France 04 Mar, 2019 8.9 MB .pdf
Brochure Semi-welded plate heat exchanger Polish Poland 06 Aug, 2019 2.8 MB .pdf
Brochure Semi-welded plate heat exchanger Swedish Sweden 14 Mar, 2019 2.8 MB .pdf
Brochure Semi-welded plate heat exchanger Finnish Finland 14 Mar, 2019 2.8 MB .pdf
Brochure Semi-welded plate heat exchanger Czech Czech Republic 09 Jun, 2021 3.5 MB .pdf
Brochure Semi-welded plate heat exchanger Hungarian Hungary 17 May, 2021 2.8 MB .pdf
Brochure Semi-welded plate heat exchanger Spanish, Castilian Spain 05 Mar, 2019 8.9 MB .pdf
Brochure Semi-welded plate heat exchanger Danish Denmark 24 Apr, 2019 2.8 MB .pdf
Brochure Semi-welded plate heat exchanger Portuguese Portugal 06 Aug, 2019 2.7 MB .pdf
Brochure Semi-welded plate heat exchanger Italian Italy 04 Mar, 2019 8.8 MB .pdf
Brochure Semi-welded plate heat exchanger German Germany 08 Oct, 2019 8.4 MB .pdf
Brochure SONDEX Płytowe wymienniki ciepła Polish Poland 15 Nov, 2019 7.4 MB .pdf
Brochure SONDEX® Scambiatori di calore a piastre tradizionali Italian Multiple 26 Jun, 2019 6.5 MB .pdf
Brochure SONDEX® Semi-Welded Heat Exchangers English Multiple 26 Nov, 2019 3.9 MB .pdf
Brochure SONDEX® Semi-Welded Heat Exchangers English Multiple 12 Feb, 2024 3.8 MB .pdf
Brochure SONDEX® Traditional Plate Heat Exchangers English Multiple 16 Aug, 2021 9.5 MB .pdf
Brochure SONDEX® Traditional Plate Heat Exchangers English Multiple 12 Feb, 2024 9.4 MB .pdf
Brochure SONDEX® Traditionelle Plattenwärmetauscher German Multiple 26 Jun, 2019 9.5 MB .pdf
Brochure SONDEX® 可拆式板式换热器 (Sondex® Traditional plate heat exchangers) Chinese (CN) Multiple 26 Jun, 2019 6.8 MB .pdf
Brochure Wymienniki ciepła Sondex Polish Poland 19 Jul, 2019 1.5 MB .pdf
Brochure Брошура_Вдосконалені рішення теплообміну Ukrainian Ukraine 01 Sep, 2022 3.2 MB .pdf
Brochure Полусварные пластинчатые теплообменники Russian Multiple 07 May, 2019 2.8 MB .pdf
Semi welded

Service and maintenance

The correct operation and timely qualified aftersales service of the heat exchangers ensures efficient operation of the whole industrial refrigeration system.

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