Compressed Air Monitoring for Industrial Systems

Accurate compressed air monitoring helps identify leaks, reduce energy costs and optimise system performance.

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Introduction

Compressed air is widely used across industrial sites for powering equipment, controlling processes and supporting production systems. Often referred to as the “fourth utility,” it is one of the most commonly used - and most misunderstood - energy sources in industry.

Despite its importance, compressed air systems are frequently unmonitored, leading to inefficiencies, wasted energy and unnecessary costs. Monitoring compressed air flow provides visibility of usage, helping operators understand where air is being consumed and where improvements can be made.

Compressed Air Monitoring for Industrial Systems - AEL

The Problem

Compressed air systems are often inefficient, but without measurement, these inefficiencies remain hidden.

Common challenges include:

  • High energy consumption from compressors
  • Undetected leaks across distribution systems
  • Lack of visibility of air usage by process or area
  • Systems operating at higher pressure than required
  • Difficulty identifying waste during non-production periods
  • Traditional systems operating without real-time monitoring

In many industrial facilities, compressed air can account for a significant proportion of total energy usage, yet a large percentage is wasted through leaks and inefficiencies.

 

The Solution

Compressed air monitoring systems provide real-time measurement of air flow, allowing operators to understand system performance and identify inefficiencies.

Thermal mass flow meters are widely used for this application, offering accurate and reliable measurement without the need for pressure or temperature compensation. These systems are often implemented alongside applications such as Nitrogen Purge Monitoring and Analyser Shelter Air Flow Monitoring, where reliable gas flow measurement supports both efficiency and safety.

By monitoring compressed air flow at key points within the system, operators can detect leaks, balance supply and demand and optimise compressor performance.

 

Technical Insight

Compressed air monitoring focuses on measuring flow, understanding usage patterns and identifying inefficiencies across the system.

Energy-intensive utility

Compressed air is one of the most expensive utilities in industrial environments, with significant energy required to generate and distribute it.

Leak detection

Leaks can account for up to 30% of compressed air usage, often going unnoticed without proper monitoring.

System optimisation

Monitoring allows operators to balance compressor output with demand, reducing unnecessary energy consumption and improving system efficiency.

Measurement technology

Thermal mass flow meters are commonly used due to their accuracy, low maintenance and ability to measure flow directly without additional compensation.

Installation points

Monitoring can be implemented at:

  • Main compressor output
  • Distribution headers
  • Individual process lines
  • Critical equipment or high-consumption areas

 

Recommended Products

Thermal Mass Flow Meters

Provide accurate, real-time compressed air flow measurement, enabling leak detection, usage monitoring and system optimisation.

Flow Switches

Used for detecting flow/no-flow conditions, alarms and monitoring critical air supply points.

 

Key Benefits

  • Improved visibility of compressed air usage
  • Early detection of leaks and system inefficiencies
  • Reduced energy consumption and operating costs
  • Optimised compressor performance and system balance
  • Improved reliability of air supply to critical processes
  • Low maintenance with no moving parts

 

Need information or advice?

Speak with our friendly, expert team to discuss your requirements and find out how we can help you.

Compressed Air Monitoring FAQs

Explore common questions about compressed air monitoring, including why it is important, how it works and how to improve system efficiency.

Why is compressed air monitoring important?

From experience across industrial sites, compressed air is often one of the biggest hidden energy costs. Without monitoring, leaks and inefficiencies go unnoticed. Measuring flow provides the visibility needed to reduce waste and improve system performance.

How much energy can be wasted in compressed air systems?

Compressed air systems are inherently inefficient, and studies show that a significant proportion of generated air can be lost through leaks or inefficiencies. In many cases, up to 30% of compressed air is wasted if systems are not properly monitored.

What is the best way to monitor compressed air flow?

Thermal mass flow meters are widely used because they provide accurate, direct measurement without requiring pressure or temperature compensation. They are reliable, low maintenance and well suited to industrial environments.

Where should compressed air flow be measured?

Flow can be measured at multiple points, including compressor outputs, main distribution lines and individual processes. In practice, installing meters at key locations provides the best visibility of system performance.

Can compressed air monitoring help reduce costs?

Yes. Monitoring allows operators to detect leaks, optimise compressor operation and reduce unnecessary air consumption, leading to significant energy savings and lower operating costs.

Is compressed air monitoring suitable for all industries?

Yes. Compressed air is used across a wide range of industries including food and beverage, pharmaceutical, chemical, manufacturing and oil & gas, making monitoring relevant in almost all industrial environments.

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