Alfa Laval is a leading innovator in the field of compact plate heat exchangers for refrigeration and heat pump systems. Whether your application is cold storage, a food and beverage process, an ice rink or anything in between, our refrigeration experts can provide you with a customized solution to meet your unique business requirements.
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Semi-welded units can handle temperatures as low as -49°F and pressures up to 900 psig. Brazed and fusion bonded units can handle temperatures down to -320 °F and pressures as high as 2306 psig for use as:
✓ Flooded Evaporators ✓ DX - Evaporators
✓ Cascade Systems ✓ Heat pumps
✓ Liquid-cooled condensers ✓ Desuperheater / gas coolers
✓ Economizers / subcoolers ✓ Oil coolers
Visit our booth at IIAR 2022
Join us for the IIAR 2022 Conference! The 2022 IIAR Natural Refrigeration Conference & Expo will take place March 6 - 9, 2022 at the Savannah Convention Center in Savannah, GA. The advanced, new features of our heat exchangers are designed meet your needs today and tomorrow, Let's chat. Visit us on booth 317. Look forward to seeing you there.
Advanced solutions for industrial refrigeration
Semi-welded plate heat exchangers
Our compact semi-welded heat exchangers enable even greater efficiency and reliability in industrial refrigeration applications, while preventing the risk of cross-contamination with their proven RefTight™ sealing system.
Built with our unique fusion-bonding method, AlfaNova offers the market’s only 100% stainless steel plate heat exchanger. It is a compact, efficient solution for cooling very clean, sensitive, liquids, which takes advantage of ammonia’s low-GWP potential.
Brazed plate heat exchangers
Our copper-brazed plate heat exchangers are a compact, efficient, and maintenance-free solution for heating, cooling, evaporating, and condensing in a wide range of refrigeration applications. Each unit is designed with a range of unique features that ensure superior thermal performance and reliability.
Key benefits of Alfa Laval semi-welded heat exchangers
High Heat Transfer
- Always turbulent flow
- Good flow distribution
- High COP factor achievable
- Low refrigerant filling
- Low environmental impact
- Low weight and space
- Pressure and temperature fatigue resistance
- Freezing causes no damage
- Corrosion - resistant plate material
- Add / remove cassettes
- Openable for cleaning
Turn to efficiency
When used as flooded ammonia evaporators, Alfa Laval semi-welded plate heat exchangers can offer a temperature approach as low as 2 degrees Fahrenheit and are extremely thermally efficient with compact dimensions. To go along with our top of the line heat exchanger line, we have developed our patented U-Turn separator with an integrated drop leg, oil pot, and nozzle connections to provide a modular compact solution to be used in for flooded ammonia applications for industrial refrigeration.
The U-Turn has smaller overall dimensions than a traditional separator while offering efficient separation through the use of four different separation methods with a low ammonia charge. This modular vessel is designed to attach directly to the carrying bar of the heat exchanger with no external support required and is available in a variety of configurations for a range of our heat exchanger models.
RefTightTM sealing system
High performance gasket sealing, for high-pressure duties. The RefTight™ sealing system enables enhanced, long-term performance in applications with high pressures and temperatures. The weld is positioned outside the separate ring-gasket groove, which ensures reliable sealing, extends the lifetime of the gasket, and prolongs service intervals.
Most refrigeration systems consume vast amounts of electricity; energy efficient design can result in substantial economic savings. Integrating subcooling into the condenser of the plate heat exchanger makes it possible to improve the energy efficiency of compact heat exchangers, without the need for extra pipe work or additional components.
Discover why Semi-welded plate heat exchangers are a good fit for high pressure refrigeration systems
Concerns over climate change have driven the refrigeration industry to place more focus on natural refrigerants. CO2 is a natural refrigerant growing in popularity in our refrigeration systems, but it comes with the challenge of designing components rated for higher pressures. Join us to learn more about Alfa Laval’s Industrial Refrigeration heat exchangers for high pressure applications.
Semi-welded GPHE: Benefits for industrial refrigeration
Alfa Laval semi-welded plate heat exchangers combine the flexibility and serviceability of normal gasketed plate heat exchangers with higher pressure resistance, making them ideal for industrial refrigeration applications. They are highly resistant to the formation of ice, as well as to fatigue stress caused by extreme pressure and temperature variations, and are suitable for use with most types of primary refrigerants and secondary fluids, including ammonia and carbon dioxide.
Committed to industry collaboration
IIAR is a technical member organization with industry representation from all facets of the natural refrigeration community, including manufacturers, engineers, contractors, end-users, academics, scientists, trainers, and more. IIAR is a leading advocate for the safe, reliable and efficient use of ammonia and other natural refrigerants.
The Refrigerating Engineers & Technicians Association (RETA) is an international society of individuals and companies involved in the design, operation and service of industrial refrigeration systems, providing education and training, as well as networking benefits, to both experienced and novel operators.
White paper: Navigating a changing refrigerants market
A massive change is currently underway in the refrigerants market. Driven by environmental concerns, legislation is pushing a gradual phase out of traditional refrigerants in favour of new alternatives with lower global warming potential (GWP). Download this white paper for a fundamental primer on selecting and accommodating alternative refrigerants for diverse heating and cooling applications.
Meet the team and connect today
Our expert team of Industrial Refrigeration sales engineers are ready to help you today with your cooling needs. Please feel free to reach out to one of us directly, chat with us online via the "chat now" button, send Tracey, Ryan, Jessica or Zach an email or fill out the form below and we'll get back to you. We won't leave you high and dry.
Commercial Market Sales Manager
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Industrial Refrigeration Documents
Questions? Challenges? Support? Don’t worry – that’s what we’re here for. Want to find out how the right technology can help your industrial refrigeration project achieve its green goals? Fill out the form below, and one of our experts will contact you with more information.