Understanding Air in an Air Compressor: What Happens Over Time

While air compressors are designed to store compressed air, the question of what happens if you leave air in an air compressor is a surprisingly common one. This article will explore the nuances of air storage in compressors, discussing the effects of prolonged air storage, common issues, and best practices for maintenance and use.

Common Myths Surrounding Air Storage in Compressors

Air compressors are designed to store compressed air, and leaving air in the system is usually not an issue. However, it's important to address some common misconceptions:

Myth 1: Air Causes Ruptures and Damage

Many believe that leaving air in the compressor can lead to ruptures or damage. In reality, this is almost never the case. Modern air compressors are built to withstand the internal pressures and conditions of storing compressed air.

Myth 2: All Air Compressors Require Drainage

A common practice is to drain the air tank after use to remove any excess water or moisture. However, not all air compressors need regular drainage. This is particularly true for those without moisture separators or desiccant filters.

Effects of Leaving Air in an Air Compressor

Leaving air in an air compressor can have several effects, depending on the conditions and duration of storage. Here are the key points to consider:

Do Compressors Need to Be Drained of Air?

In general, if you are storing your air compressor for an extended period, it is advisable to let the air out of the tank. This is particularly important when dealing with moisture, which can condense in the tank over time and lead to rust and corrosion.

Leakage Over Time

One of the most common issues with leaving air in a compressor is that it will slowly leak out over time. This is a natural process and is not indicative of any malfunction. However, significant leaks could be a sign of a problem that needs addressing.

Maintenance and Storage

To ensure the longevity and optimal performance of your air compressor, consider the following:

Draining the Tank: Regularly draining the air tank can help prevent the buildup of moisture and contaminants. Dryer Systems: If you frequently store your compressor, consider investing in a moisture separator or desiccant filter to maintain the quality of the stored air. Regular Inspections: Regularly inspect your air compressor for any signs of damage or leaks to ensure it is functioning correctly. Proper Storing Conditions: Store your air compressor in a dry location to minimize the risk of moisture ingress.

Conclusion

The decision to leave air in your air compressor largely depends on how you plan to use and store it. While leaving air in the system is usually not a problem, proper maintenance practices, such as regular draining and inspections, can help ensure your compressor remains in top condition.