A guide to compressed air leaks

The man connects the pressure gauge

Compressed air leaks are a major pain point for many air compressor users, as they can lead to significant amounts of wasted energy and losses to operating efficiency.

Not only do air compressor leaks waste a large portion of the total air production capacity, but they can also cause operating losses through system pressure drops and a reduction to the working life of the system through increased running time and unnecessary added compressor capacity.

In order to reduce energy consumption, maintenance requirements and unscheduled downtime (all of which add unnecessary costs), it is important to understand how to prevent, detect and fix air compressor leaks.

“Even the smallest air leak can cost thousands each year in wasted energy.”

Types of compressed air leaks

Some air compressor leaks are intentional and necessary for the functioning of the system (known as planned leaks). These types of leaks are part of the design of the air compressor and specific functions such as cooling, blowing or drying.

Unplanned leaks, however, are cause for concern as they are mechanical issues that can cause serious headaches. While unplanned leaks can come from any part of the air compressor, they are most commonly found in the following:

  • Valves
  • Couplings, fittings, hoses and tubes
  • Filters, lubricators and regulators
  • Pipe joints
  • Worn seals or gaskets.

Key Takeaways

Leaks Are Common

Couplings, fittings, hoses, and seals are frequent sources of wasted air.

High Cost of Leaks

In Australian conditions, leaks drive up energy bills, reduce pressure, and increase wear.

Prevention Saves Money

Regular inspections and preventative servicing help reduce leaks before they escalate.

Professional Support Matters

Sydney-based service teams and technicians provide fast detection and repair.

Equipment for checking air compressor

Prevention

Prevention is always better than a cure… and it’s no different with air compressor leaks.

The first step to preventing air leaks is to ensure your air compressor is operating to manufacturer specifications. Running an air compressor at an unnecessary capacity can cause premature wear and tear on components, a leading cause of air leaks.

Ensuring your air compressor is well maintained and serviced is also key to prevention and will save you significant amounts of time, energy and resource costs.

Pilot Air offers comprehensive service and maintenance, which includes scheduled maintenance and preventative checks to ensure your system is operating efficiently (and to eliminate any avoidable air leaks).

Happy man wearing a blue uniform using digital tablet

Repair

Fixing an air compressor leak may be as simple as tightening a connection or replacing an O-ring. Some leaks, however, can be quite complex and require the replacement of several parts and components.

It is important that any compressed air leak is repaired by a professional to avoid any further damage to the system.

If you suspect your compressed air system has a leak, be sure to call the Pilot Air service team to arrange a maintenance appointment. Our service technicians operate from workshops in Sydney and Brisbane – and include a fleet of mobile technicians, ensuring quick response times. In addition to our in-house technicians, we have a service agent network of over 50 service technicians available Australia-wide, who are on hand to assist you.

We not only service and repair Pilot Air’s compressed air products, but most other leading brands, too!

Extensive product range

Our team of experts, plus our comprehensive spare parts inventory, ensure we maintain your compressed air system’s reliability and efficiency while reducing whole-of-life operating costs.

Learn more about our compressed air products.

“Pilot Air helps Sydney businesses detect, repair, and prevent leaks — keeping systems efficient and reliable.”

Air Compressor Products

From air compressors through to compressed air storage, treatment and distribution, our extensive range of compressed air products ensures we have the right solution for your business needs, no matter the industry or application. We also offer custom-built packages and compressed air systems that are fit for purpose and tailored to your budget.

Pilot K17Sl/2.2 Silent 240V Reciprocating
Pilot K17Sl/2.2 Silent 240V Reciprocating

The Pilot K17Sl/2.2 Silent 240V Reciprocating system is part of the industrial silent air compressors range.

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Pilot PAC Industrial 4-5.5KW (5.5-7.5HP) Fixed Speed Rotary Screw Mounted Receiver
Pilot PAC Industrial 4-5.5KW (5.5-7.5HP) Fixed Speed Rotary Screw Mounted Receiver

Enjoy simple and efficient maintenance with the Pilot PAC Industrial 4-5.5KW (5.5-7.5HP) Fixed Speed Rotary Screw Mounted Receiver air compressor, with easily accessible internal components. The poly-v belt driven system offers long life and minimum maintenance.

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The Pilot Air Team

Our compressed air experts are the best in the business. Committed to outstanding service delivery, our team and network of over 50 specialist technicians are with you every step of the way.

Compressed Air Products

We have Australia’s most extensive range of air compressor solutions, from high-performance models to portable and compact units. We also manufacture the latest air storage, air treatment and air distribution solutions. We offer a complete inventory of spare parts and on or off-site servicing and maintenance and can customise a complete compressed air solution for any business. 

Best suited for industrial applications to meet the ever-changing demands of the industry.

Rotary Screw
Compressors

All the reliability of a Pilot Air product, in a quiet package.

Silent Air
Compressors

Tailored for trade, professional or industrial applications.

Reciprocating Air
Compressors

Horizontal and vertical air receivers to complete a compressed air system installation.

Compressed Air
Storage

100% pure oil-free air, designed for applications where air quality is critical.

Oil-Free Air
Compressors

A range of products that offer safe, clean air, free from impurities.

Compressed Air
Treatment

Ideal for clients with small, specialist compressed air requirements.

Compact Air
Compressors

Efficient and easy to install, with high-quality components.

Compressed Air
Distribution

Perfect for noise sensitive environments where air demands are constant.

Portable Air
Compressors

Perfect for noise sensitive environments where air demands are constant.

Portable Air
Compressors

Complete solutions, including horizontal and vertical air receivers.

Compressed Air
Storage

Ideal for clients with small, specialist compressed air requirements.

Compact Air
Compressors

Frequently Asked Questions

What kinds of compressed air leaks are most common?

Leaks often occur in couplings, fittings, hoses, seals, gaskets, filters, and joints. Pilot Air explains these issues in their Guide to Compressed Air Leaks.

Why are air leaks especially costly under Australian conditions?

In Australia’s heat, dust, and humidity, leaks cause energy waste, pressure drops, and higher maintenance costs. Pilot Air highlights these risks in their Compressed Air Leaks guide.

How can leaks be prevented or minimised?

Regular inspections, servicing, and proper system design are essential. Pilot Air’s service and maintenance programs include preventative checks to identify and reduce leaks.

What should I do if I suspect my system has leaks?

Small leaks may be fixed by tightening or replacing fittings and seals, while larger issues may require expert help. Pilot Air’s Sydney-based service team can diagnose and repair leaks quickly.

What support does Pilot Air offer to keep systems leak-free?

Pilot Air provides spare parts, trained technicians, and full compressed air solutions to help businesses maintain reliable, efficient systems.

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