Products

How does a refrigerated air dryer work?

• Pre-cooling: The incoming compressed air is first cooled in an air-to-air heat exchanger, where the outgoing cool dry air pre-cools the hot incoming air, condensing some of the moisture.
• Refrigeration: The air then enters an air-to-refrigerant heat exchanger, where it is further cooled to a temperature as low as 3°C (35°F) by the refrigerant circuit, causing the moisture to condense into liquid water.
• Moisture Removal: The condensed water is collected and removed from the system through an automatic drain.
• Reheating: Finally, the dry and cold air is reheated by transferring heat from the incoming compressed air through the initial heat exchanger, preventing condensation in downstream pipelines and equipment. 

How many types of refrigerated air dryers?

• Air-Cooled Refrigerated Air Dryers: Air-cooled type dryers use air to cool the refrigerant in the system. They are generally more straightforward to install and maintain but might be less efficient in very hot environments due to their reliance on ambient air.
• Water-Cooled Refrigerated Air Dryers: Water-cooled type dryers use water to cool the refrigerant, which can be more efficient in maintaining consistent performance, especially in warmer environments. They require a water supply and may involve more complex installation and maintenance.

When and where do need refrigerated air dryers?

• General Manufacturing and Service Industries: For powering pneumatic tools and equipment where removing visible moisture is sufficient, refrigerated air dryers with a dew point around +38°F are typically adequate.
• Automotive Shops: For everyday operations such as inflation, cleaning, and some painting processes, the air quality provided by refrigerated air dryers is adequate. They help prevent moisture-related issues without the need for the ultra-dry air that desiccant dryers provide.
• Food Packaging Plants: In food processing, where compressed air is used in packaging but not in direct contact with food, refrigerated air dryers can prevent moisture that could lead to spoilage without the need for the lower dew points achievable by desiccant dryers.
• Breweries: For operations that do not require ultra-dry air, such as some stages of the brewing process or for cleaning purposes, refrigerated air dryers ensure that the compressed air does not introduce moisture into the process.