How to Store Compressed Air: Tips for Safety & Efficiency

Christian Foley
Apr 30
3 min read

Proper storage of compressed air is essential for maintaining safety, efficiency, and the longevity of your air compressor system. Whether you’re running an industrial operation or using compressed air for automotive or workshop tasks, understanding how to store compressed air correctly can prevent pressure loss, reduce energy waste, and minimise safety risks.

Why Proper Compressed Air Storage Matters

Compressed air is more than just a power source, it’s a high-pressure system that requires careful handling. Without the right storage setup you could face pressure fluctuations, moisture build-up, leaks, and even safety hazards like system failures or, in very extreme cases, tank explosions.

A well-designed compressed air storage tank setup helps:

✅ Maintain stable air pressure for consistent performance

✅ Reduce strain on your air compressor, improving efficiency

✅ Prevent moisture build-up that can cause rust and internal damage

✅ Enhance safety by reducing sudden pressure spikes and overloads

How to Store Compressed Air

1. Use the Right Size Compressed Air Storage Tank

The size of your air storage tank directly impacts system performance. A tank that’s too small leads to frequent pressure drops, while an oversized tank increases energy waste. The right size depends on:

Air demand

Higher demand requires a larger tank to avoid pressure fluctuations.

Compressor capacity

Your tank should match your compressor’s CFM (cubic feet per minute) output.

Usage type

Continuous use (e.g., manufacturing) requires larger tanks than intermittent use (e.g., workshops).

If you're unsure what size tank suits your needs, we can help you choose the best setup for your air system. Simply get in touch with one of our experts, or visit our guide.

2. Keep Tanks in a Cool, Dry, and Well-Ventilated Area

Heat and moisture are the biggest threats to compressed air storage. Always place your air storage tank in a clean, dry, and well-ventilated space to prevent overheating and condensation build-up.

Avoid direct sunlight or heat sources that could increase internal pressure.
Use desiccant dryers or moisture traps to remove excess water from stored air.
Ensure proper ventilation to prevent overheating and excess pressure build-up.

3. Regularly Drain Moisture from the Tank

Compressed air naturally contains moisture, which condenses inside the tank over time. If left unchecked, this can cause rust, corrosion, and contamination in your system.

Drain the tank daily or use an automatic drain valve to prevent moisture build-up.
Install an air dryer to reduce humidity and protect sensitive tools and machinery.
Check for water accumulation in the piping, as excess moisture can reduce efficiency and damage equipment.

4. Monitor Pressure Levels and Adjust When Necessary

Over-pressurising a tank increases the risk of leaks, energy waste, and air compressor explosion risk. Make sure your air pressure matches the recommended settings for your equipment.

Use a pressure gauge to monitor tank pressure regularly.
Install a pressure relief valve to prevent over-pressurisation.
If you need to fine-tune settings, learn how to adjust an air compressor pressure switch or let a professional handle it.

5. Inspect for Leaks and Structural Integrity

Even a small air leak can lead to significant energy loss and put strain on your compressor. A weak or damaged tank can also pose a serious safety hazard.

Conduct routine leak tests. Apply soapy water to connections and look for bubbling.
Check for signs of rust, cracks, or structural wear.
Ensure safety valves and pressure relief systems are in working order.

Need Help with Compressed Air Storage?

Properly storing compressed air is essential for safety, efficiency, and long-term equipment health. If you’re unsure whether your setup is optimised, we offer professional air compressor servicing and storage solutions to keep your system running smoothly.

✅ Air storage tank sizing and installation

✅ Leak detection and pressure adjustments

✅ Moisture control and drainage solutions