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AlfaBlue Junior DG

AlfaBlue Junior DG is a competitive dry cooler line that offers excellent performance, easy installation on site and an outstanding integration with other components. Highly efficient fan motors combine excellent sound characteristics and low energy consumption. AlfaBlue Junior dry coolers are often used for cooling down condenser water in air-conditioning and refrigeration installations. In the processing industry, dry coolers are suitable for closed circuit cooling of various process liquids.

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Standard configuration

  • Finned coil 
    Innovative coil design manufactured from Cu tubes and corrugated aluminium turbo fins. Standard fin spacing 2.1 mm. Liquid connections threaded ext. Each heat exchanger is leak tested with dry air.
  • Construction

    Patented coil frame design allowing thermal expansion and offering protection against vibration (f.i. during transportation). Corrosion resistant casing material, coated RAL9002. Separated fan sections.
  • Fans 

    High efficiency AC or EC fans with innovative polymeric fan blades and low power consumption. Available in two fan diameters (500 & 630 mm), different power supplies (230/50-60/1, 400/50-60/3) and four noise levels. Protection class IP 54 according to DIN 40050. AC motors are fitted with integrated thermo contacts to provide reliable protection against thermal overload (terminals in the box). Motors may be wired to one or more common terminal boxes

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Options

For a full overview of all available options and additional technical specifications please refer to the product leaflet.

  • All liquids that do not corrode copper
  • Capacities: 10 - 231 kW (water, EN1048)

AlfaSelect Air

These air heat exchanger products can be configured and selected using the AlfaSelect Air selection tool.
AlfaSelect Air

Alfa Laval Anytime

Our ebusiness tool Alfa Laval Anytime offers product information, on-line product selection and a webshop function for air products and spare parts. Distributors and partners are invited to contact Alfa Laval and register as an Anytime user.
Go to Alfa Laval Anytime

Cold Room Calculator

Mobile app for iOS & Android to calculate the expected heat load for your cold room.
Cold Room Calculator

Find everything you need for your HVAC application in Alfa Laval's HVAC handbook.

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How it works

Alfa Laval finned coil air heat exchangers have been designed to achieve an optimized exchange of thermal energy between air and a refrigerant or fluid. The ‘heart’ of our air heat exchangers is the finned coil, built up from a circuit of interconnected tube serpentines and fins to increase the heat exchanging surface. Thanks to the combination of key design variables (coil materials, coil geometry, casing design, fan type), air units are very versatile heat exchangers with a great variety of applications in many industries. Alfa Laval supplies finned coil air heat exchanger products for a wide variety of applications.

Air-cooled liquid coolers (radiators/dry coolers)

Air heat exchangers may be used to cool various process liquids. For this application hot process liquid flows through the tubes. This liquid is cooled by the relatively cold ambient air that is forced through the coil.
Air heat exchangers for process liquid cooling are referred to as 'radiators'. Air-cooled liquid coolers for HVAC applications and total energy systems are referred to as 'dry coolers'.

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