Alfa Laval Gasketed Plate & Frame Heat Exchangers
HVAC Line – AlfaQ™ and Double-Wall Models
Alfa Laval AlfaQ™ heat exchangers are AHRI Certified®, based on AHRI Standard 400, ensuring thermal performance follows manufacturers’ published specifications. AHRI Certified® units are subject to continual, rigorous testing and have their ratings independently verified by a third party. Certified units may be found in the AHRI Directory at www.ahridirectory.org. AlfaQ™ units provide optimal heating and cooling in commercial applications such as: cooling substations, free-cooling systems, and data centers. They also provide year-round comfort in public institutions such as hotels, schools, and hospitals, provide energy savings, and deliver efficient heat transfer with a small footprint. Continuously upgraded with new models and innovative features, this is the world’s most advanced gasketed plate heat exchanger range for HVAC applications.
Model Comparison
Find and compare the models suitable for your application below:
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| Model | AQ1 | AQ1L | AQ2A | AQ2T | AQ2L | AQ2S | AQ3 | AQ4T |
| Connection Size Inches | 1-1/4″ | 1-1/4″ | 2″ | 2″ | 2″ | 3″ | 3″ | 4″ |
| Max. Flow Rate in GPM (m3/h) | 30 (5.7) | 30 (5.7) | 180 (41) | 180 (41) | 180 (41) | 180 (41) | 300 (68) | 800 (182) |
| Max. Temp. Rating in °F (°C) | 356 (180) | 356 (180) | 356 (180) | 356 (180) | 356 (180) | 356 (180) | 356 (180) | 356 (180) |
| Standard /Max. Pressure Rating in psi | 150/150 | 150/150 | 150/300 | 150/300 | 150/300 | 150/300 | 150/150 | 150/400 |
| AQ-Series Model | AQ4L | AQ6T | AQ6L | AQ8T | AQ8 | AQ8S | AQ10T |
|---|---|---|---|---|---|---|---|
| Connection Size Inches | 4″ | 6″ | 6″ | 8″ | 8″ | 8″ | 8/10″ |
| Max. Flow Rate in GPM (m3/h) | 800 (182) | 1700 (386) | 3000 (681) | 3000 (681) | 3000 (681) | 3000 (681) | 3000 (681)/ 4500 (1020) |
| Max. Temp. Rating in °F (°C) | 356 (180) | 356 (180) | 356 (180) | 356 (180) | 356 (180) | 356 (180) | 356 (180) |
| Standard /Max. Pressure Rating in psi | 150/400 | 150/460 | 150/300 | 150/300 | 150/300 | 150/300 | 150/434 |
| AQ-Series Model | AQ14 | AQ14L | AQ14S | AQ18 | AQ18TS | AQ20 | AQ20S |
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| Connection Size Inches | 12/14″ | 12/14″ | 12/14″ | 18″ | 18″ | 20″ | 20″ |
| Max. Flow Rate in GPM (m3/h) | 7000 (1590)/ 8000 (1820) | 7000 (1590)/ 8000 (1820) | 7000 (1590)/ 8000 (1820) | 12000 (2725) | 12000 (2725) | 20000 (4542) | 20000 (4542) |
| Max. Temp. Rating in °F (°C) | 356 (180) | 356 (180) | 356 (180) | 356 (180) | 356 (180) | 356 (180) | 356 (180) |
| Standard /Max. Pressure Rating in psi | 150/400 | 150/400 | 150/400 | 150/310 | 150/310 | 150/300 | 150/300 |
In addition, Valutech offers Alfa Laval’s double-wall plate heat exchangers, which are suitable for domestic hot water applications, and other scenarios where cross-contamination of media must be avoided at all costs.