Refrigerated Air Dryers for Rotary Screw Compressor Systems
AIRNOVEX refrigerated air dryers are designed to remove moisture from compressed air systems used in manufacturing plants, workshops, and industrial facilities.
Compressed air produced by a compressor contains water vapor from atmospheric air. Without proper drying equipment, this moisture can collect inside pipelines, pneumatic tools, and production equipment. A refrigerated air dryer reduces this moisture by cooling compressed air and separating condensed water before the air enters the distribution system.
AIRNOVEX manufactures refrigerated compressed air dryers for applications using rotary screw compressors, variable speed compressors, and industrial compressed air treatment systems. The product range is designed for customers who require stable pressure dew point control, simple maintenance, and dependable operation.
Designed For Industrial Air Systems
Suitable for factories and production environments where compressed air quality affects equipment reliability and manufacturing processes.
Stable Moisture Removal
The refrigeration cycle lowers compressed air temperature to condense and remove water vapor from the air stream.
Compatible With Screw Compressors
Designed to work together with rotary screw compressors and complete compressed air treatment systems.
Why Compressed Air Needs Drying
During the compression process, atmospheric moisture becomes concentrated inside compressed air. When compressed air cools down inside pipelines or equipment, this moisture can turn into liquid water.
Excess moisture may cause corrosion, shorten pneumatic component life, affect product quality, and increase maintenance requirements. Installing a suitable compressed air dryer system helps maintain cleaner air and improves the reliability of the entire compressed air network.
Prevent Pipeline Corrosion
Removing moisture helps reduce rust formation inside compressed air pipes and storage tanks.
Protect Pneumatic Equipment
Dry compressed air supports stable operation of valves, cylinders, tools, and automation equipment.
Improve Production Stability
Consistent air quality helps reduce interruptions caused by moisture-related problems.
Technical Specifications of AIRNOVEX Refrigerated Air Dryers
| Parameter | Specification |
|---|---|
| Product Type | Industrial Refrigerated Air Dryer |
| Air Flow Range | 1.2 - 100 m³/min |
| Working Pressure | 7 - 13 bar |
| Pressure Dew Point | +3°C to +10°C |
| Cooling Method | Air Cooled / Water Cooled |
| Compatible Equipment | Rotary Screw Compressors, Industrial Compressed Air Systems |
| Power Supply | 380V / 400V / 460V options available |
| Control System | Intelligent Electronic Controller |
| Drain System | Automatic Condensate Drain |
How Do Refrigerated Air Dryers Work?
A refrigerated air dryer uses a refrigeration system and heat exchangers to reduce compressed air temperature below its moisture condensation point.
1. Air Cooling Process
Hot compressed air from the compressor enters the dryer and passes through a heat exchanger. The temperature is reduced before moisture separation begins.
2. Moisture Condensation
As the compressed air cools, water vapor changes into liquid condensate. The separated water is collected and removed through the drain system.
3. Dry Air Output
After moisture removal, the dried compressed air exits the dryer and continues to downstream equipment with controlled dew point performance.
Key Features of AIRNOVEX Refrigerated Air Dryers
Efficient Refrigeration System
The refrigeration circuit is designed to provide stable cooling performance under normal industrial operating conditions. Proper temperature control helps maintain consistent moisture separation and compressed air quality.
High Efficiency Heat Exchanger
The heat exchanger design improves heat transfer between compressed air and the refrigeration system, helping reduce energy consumption while maintaining effective moisture removal.
Automatic Condensate Drainage
The automatic drain system removes separated condensate without requiring frequent manual operation, helping maintain continuous dryer performance.
Stable Pressure Dew Point Control
AIRNOVEX dryers are designed to maintain a consistent pressure dew point suitable for general industrial compressed air applications.
Compact Industrial Design
The equipment layout is optimized for installation in compressor rooms where space utilization and easy access for maintenance are important.
Simple Maintenance Structure
Key components are arranged for easier inspection and servicing, helping reduce unnecessary downtime during routine maintenance.
How To Select The Right Refrigerated Air Dryer
Selecting a refrigerated air dryer requires matching the dryer capacity with the compressed air system operating conditions. An incorrectly sized dryer may affect drying performance or increase unnecessary operating costs.
1. Check Compressor Air Flow
The dryer capacity should normally match the actual compressed air output of the compressor. Air flow is usually measured in m³/min or CFM depending on regional standards.
2. Confirm Working Pressure
The dryer working pressure should meet or exceed the pressure requirements of the compressed air system. Common industrial systems operate between 7 and 13 bar.
3. Consider Inlet Air Temperature
High inlet temperature conditions may require additional capacity selection because warmer compressed air contains more moisture.
4. Determine Required Dew Point
Refrigerated dryers are commonly selected for applications requiring a pressure dew point around +3°C to +10°C. Applications requiring lower dew points may require different drying technologies.
Installation Position In A Compressed Air System
A refrigerated air dryer is normally installed after the air compressor and before downstream production equipment. In many industrial systems, an air receiver tank is installed before or after the dryer depending on system design requirements.
Correct installation location allows the dryer to receive compressed air under suitable operating conditions and helps maintain stable air quality throughout the compressed air network.
For systems with high moisture levels, proper filtration before and after the dryer may further improve compressed air quality and protect production equipment.
Applications of Refrigerated Air Dryers
AIRNOVEX refrigerated air dryers are used in various industries where compressed air quality is important for production reliability and equipment protection.
Automotive Manufacturing
Used with pneumatic assembly equipment, automation systems, and production lines requiring stable compressed air.
Food Processing
Supports compressed air systems where moisture control is required for production equipment operation.
Pharmaceutical Production
Provides moisture-controlled compressed air for equipment used in controlled manufacturing environments.
Electronics Manufacturing
Helps maintain clean compressed air conditions for precision manufacturing processes.
CNC Machining
Supports machine tools and pneumatic systems by reducing moisture contamination risks.
Textile Industry
Provides stable compressed air quality for production equipment requiring continuous operation.
General Manufacturing
Suitable for factories using compressed air systems for automation, tools, and production processes.
Engineering Projects
Available for integration into industrial compressed air projects and customized system solutions.
Maintenance Requirements For Refrigerated Air Dryers
Regular maintenance helps maintain stable dryer performance and extends equipment service life. The maintenance frequency depends on operating environment, air quality, and installation conditions.
Clean Condenser Surface
Dust and contaminants on the condenser can reduce cooling efficiency. Regular cleaning helps maintain proper heat exchange performance.
Check Drain Operation
The automatic drain system should be inspected to ensure condensate is removed correctly.
Inspect Operating Conditions
Monitoring pressure, temperature, and abnormal operating conditions helps identify potential issues early.
AIRNOVEX Manufacturing Capability
AIRNOVEX manufactures rotary screw compressors, variable speed air compressors, refrigerated air dryers, and compressed air treatment equipment for industrial customers and distributors.
Our engineering team supports product selection, technical specifications, customized configurations, and compressed air system requirements for different markets.
With factory production capability and experience in industrial compressed air equipment, AIRNOVEX provides equipment options for OEM projects, replacement requirements, and new compressed air installations.
Frequently Asked Questions About Refrigerated Air Dryers
What is a refrigerated air dryer?
A refrigerated air dryer is a compressed air treatment device that removes moisture from compressed air through a refrigeration cooling process. When compressed air is generated by a compressor, it contains water vapor from the surrounding air. The refrigerated dryer lowers the temperature of the air, causing moisture to condense into liquid water. The condensate is then separated and discharged before dry compressed air enters the pipeline system. Refrigerated air dryers are commonly used in manufacturing plants where stable compressed air quality is required.
Why do rotary screw compressors need air dryers?
Rotary screw compressors compress large volumes of atmospheric air, and the compressed air contains concentrated moisture after compression. If this moisture is not removed, it may create corrosion inside pipelines, affect pneumatic components, and reduce production reliability. A refrigerated air dryer installed with a screw compressor system helps remove water vapor and provides cleaner compressed air for industrial applications.
What is the difference between refrigerated and desiccant air dryers?
Refrigerated air dryers remove moisture by cooling compressed air and are commonly used for general industrial applications requiring a moderate pressure dew point. Desiccant air dryers use adsorption materials to achieve much lower dew points for applications requiring extremely dry air. The correct choice depends on the production environment, required air quality level, and operating conditions.
How do I choose the correct refrigerated air dryer size?
The correct dryer size depends on compressor air flow, working pressure, inlet temperature, ambient temperature, and required pressure dew point. Selecting a dryer with insufficient capacity may reduce moisture removal performance, while excessive sizing may increase equipment cost. A proper selection should match the actual compressed air system requirements.
How often should a refrigerated air dryer be maintained?
Maintenance frequency depends on operating environment and usage conditions. Common maintenance tasks include checking condenser cleanliness, inspecting drains, and confirming normal operating temperatures. Regular inspection helps maintain stable drying performance and reduces unexpected downtime.
Can AIRNOVEX provide customized refrigerated air dryer solutions?
Yes. AIRNOVEX provides customized compressed air treatment equipment according to customer requirements, including different air flow capacities, voltage standards, installation conditions, and OEM configurations.
Request AIRNOVEX Refrigerated Air Dryer Specifications
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