The Efficiency Paradox and Customer Expectations in Compressed Air: Not Only a “Pressure” Matter

About the whitepaper

In many industrial facilities, increasing operating pressure is seen as the safest way to manage airflow complaints, demand fluctuations, or future expansion. While higher pressure appears to offer security, it often results in increased energy consumption, reduced usable airflow, and higher mechanical stress.

This ELGi whitepaper challenges that assumption. It shows that compressed air performance depends less on pressure alone and more on how the system is designed and managed — including storage capacity, receiver placement, distribution layout, pressure stability at the point of use, and control strategy.

Why you should read this whitepaper

If you are responsible for compressed air performance, energy cost, or system reliability, this paper helps you reassess decisions that may already be affecting your operation.

Specifically, the whitepaper covers:

1) Pressure creep and its operating cost

Many plants raise pressure to stop tool drop or airflow complaints. Over time, this increases power consumption and accelerates wear across the system. The whitepaper shows how even small pressure corrections can deliver visible energy savings during daily operation.

2) Pressure vs flow: what limits usable air

Higher pressure does not guarantee more air. As pressure rises, available Free Air Delivery (FAD) can fall, especially during peak demand. This can leave compressors working harder while supplying less usable airflow when production needs it most.

3) Reserve capacity starts with storage and distribution

Consistent compressed air supply depends on receiver size, receiver location, and a well-balanced distribution network. When these are sized correctly, pressure stays stable at critical end uses without forcing the compressor to run at elevated setpoints.

4) A practical system optimisation example

One plant planned a higher-power compressor and increased pressure to support new tools. The analysis revealed storage and distribution as the real limits. After correcting these and lowering pressure, the system delivered stable air, lower energy use, and improved reliability without oversizing.

5) Controls and monitoring that hold gains

Modern controls, variable speed operation, and connected monitoring help maintain pressure stability and match supply with demand over time. These tools support consistent performance while reducing mechanical stress and unplanned downtime.

Ready to reassess pressure in your compressed air system?

If you are planning a system expansion, introducing air‑intensive processes, or dealing with recurring pressure instability, this whitepaper offers a clear system‑level framework before committing to higher pressure or larger machines.

Read this whitepaper to quickly reassess how pressure, storage, distribution, and control decisions affect energy cost, airflow availability, and long‑term reliability.

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