The Surprising Truth: Why You Should Never Store An Air Compressor Empty

Air compressors are essential tools for a variety of tasks, from powering pneumatic tools to inflating tires. However, proper maintenance is crucial to ensure the longevity and performance of your air compressor. One common question that arises is whether or not you should store an air compressor empty. In this comprehensive guide, we will explore the pros and cons of both approaches and provide expert recommendations to help you make an informed decision.

Benefits of Storing an Air Compressor Empty

Reduced Moisture Buildup

When an air compressor is stored with air inside, moisture can accumulate within the tank and components. Over time, this moisture can lead to corrosion and rust, which can damage the compressor and shorten its lifespan. Storing the air compressor empty eliminates the presence of air and, consequently, reduces the risk of moisture buildup.

Improved Safety

Compressed air can be dangerous if not handled properly. If an air compressor is stored with pressure inside, it can pose a safety hazard. By storing the compressor empty, you eliminate the potential for accidental discharge of compressed air, reducing the risk of injury.

Easier Maintenance

When an air compressor is stored empty, it is easier to perform maintenance tasks such as draining the tank and cleaning the components. With no air pressure present, you can safely remove the tank and access the internal parts without the risk of compressed air escaping.

Drawbacks of Storing an Air Compressor Empty

Loss of Pressure

Storing an air compressor empty means that you will need to wait for it to fill up before using it. This can be inconvenient if you need to use the compressor immediately.

Potential for Damage

If an air compressor is stored in a humid environment, moisture can still enter the tank through the air inlet valve. This can lead to corrosion and damage to the compressor’s components.

Reduced Lubrication

In some cases, storing an air compressor empty can reduce the lubrication of the components. This is because the oil mist that lubricates the compressor is carried by the compressed air. Without air pressure, the oil mist may not reach all of the components, potentially leading to wear and tear.

Recommendations for Storing an Air Compressor

Based on the pros and cons discussed above, the following recommendations are provided:

For Short-Term Storage (Less than 30 Days)

• Store with Air: If you plan to use the air compressor within a short period of time (less than 30 days), it is acceptable to store it with air inside. This will eliminate the need to wait for the compressor to fill up when you need to use it.
• Drain the Tank: Before storing the compressor, drain any water that has accumulated in the tank. This will help prevent corrosion and damage.

For Long-Term Storage (More than 30 Days)

• Store Empty: For long-term storage, it is recommended to store the air compressor empty. This will minimize the risk of moisture buildup and corrosion.
• Lubricate Components: If you are storing the compressor empty for more than 30 days, it is important to lubricate the components with a light oil. This will help prevent wear and tear.

Additional Tips for Storing an Air Compressor

• Choose a Dry Storage Location: Store the air compressor in a dry, well-ventilated area to minimize the risk of moisture buildup.
• Cover the Compressor: To protect the compressor from dust and debris, cover it with a canvas or plastic cover.
• Inspect Regularly: Regularly inspect the air compressor for any signs of damage or leaks.

Wrapping Up

The decision of whether or not to store an air compressor empty depends on the specific circumstances and usage patterns. By understanding the benefits and drawbacks of both approaches, you can make an informed decision that will help extend the life and performance of your air compressor.

Frequently Asked Questions

Q: What is the best way to drain the tank of an air compressor?

A: To drain the tank, open the drain valve at the bottom of the tank and allow all of the water to escape.

Q: How often should I lubricate the components of my air compressor?

A: If you are using the compressor frequently, it is recommended to lubricate the components every 50-100 hours of use. For less frequent use, lubrication every 6 months to a year should be sufficient.

Q: What are some signs that my air compressor needs to be serviced?

A: Signs that your air compressor needs to be serviced include: excessive noise, reduced air pressure, leaks, and overheating.