Air dryers are a crucial part of compressed air systems. Without proper drying, moisture in compressed air can lead to:
Corrosion in pipes and tools
Reduced efficiency of pneumatic equipment
Damage to production equipment or end products
Increased maintenance and downtime costs
Regular maintenance of air dryers ensures dry, clean, and reliable air, which is essential for efficient operations—especially in industries such as food processing, pharmaceuticals, electronics, and manufacturing.
| Dryer Type | Features | Key Maintenance Areas |
|---|---|---|
| Refrigerated Dryer | Cools the air to condense and remove moisture | Clean condenser, check refrigerant level, maintain drain system |
| Desiccant Dryer | Uses adsorbent material to remove moisture | Replace desiccant, inspect valves, check control system |
Moisture in output air
▸ Possible causes: low refrigerant, saturated desiccant, drain malfunction
High pressure drop across the dryer
▸ Possible causes: clogged filters, frozen components, internal blockage
Automatic drain valve failure
▸ Leads to water accumulation, affecting dryer efficiency
Alarms or abnormal noise during operation
▸ Check compressors, valves, sensors, or control board
| Task | Description |
|---|---|
| Check and clean drain valves | Ensure proper moisture discharge |
| Clean condenser coils | Use compressed air or water to remove dust |
| Inspect pressure and temperature | Verify system parameters are within range |
| Replace desiccant (for desiccant dryers) | Depends on usage and environment |
| Check control and valve operation | Test all functional components |
| Full system inspection | Includes refrigerant, filters, valves, etc. |
