Leak Detection
Compressed Air Leak Survey
Ultrasonic compressed air leak surveys — our core service, backed by 30,000+ hours of in-plant experience.

30,000+ hours of survey experience
Losses brought under 5% by year 2–3
Repairs often take under an hour
What We Inspect
Every accessible point in your compressed air distribution system, using the CTRL UL101 ultrasound diagnostic tool.
What We Find
Leaks invisible and inaudible in a noisy plant — commonly 25–30% of capacity on a first survey.
How It Helps
Timely repair of identified leaks has consistently brought losses down to under 5% of compressor capacity within two to three years.
Our Advantage
One of Permaweld's most established services, scaled from small industry up to the largest process plants.
During a routine compressed air survey, a single unnoticed leak can be costing a plant lakhs of rupees a year — and the repair itself often takes less than an hour, which is exactly why finding it matters far more than fixing it once it's found.
Compressed air leaks are a silent loss — most are impossible to hear or see in a noisy industrial environment, and in large plants with complex distribution lines, pinpointing the exact leak location is a serious technical challenge that gets harder, not easier, as a facility grows.
Air losses of 25–30% are commonly found on a plant's first survey. Where regular monitoring is absent, plants often add compressor capacity to compensate rather than fixing the underlying leaks, which only grows the energy bill without solving the actual problem. With timely repair of the leak spots we identify, plants have consistently brought losses down to under 5% of total compressor capacity by the end of the second or third year.
Detecting these leaks takes more than a basic ultrasonic detector — it requires an instrument sensitive enough to pick up the high-frequency ultrasound a minute air leak generates, even from a distance, and convert it into audible sound and a meter reading an engineer can act on. We use the CTRL UL101 ultrasound diagnostic tool, refined over more than 30,000 hours of in-plant checking across refineries, paper, power, automobile, and pharma plants.
This is one of Permaweld's most established services, with customizable packages scaled from small and medium industry up to the largest process plants, so the scope of a survey matches the size and complexity of the facility rather than following a one-size-fits-all template.
Where this service is commonly used
Related leak detection services
Compressed Air Leak Survey — Frequently Asked Questions
What is a compressed air leak audit?
It's an ultrasonic survey that locates and quantifies individual compressed air leaks across a plant's distribution system — one of Permaweld's most established services, backed by 30,000+ hours of in-plant experience.
How do compressed air leaks increase industrial energy consumption?
Leaks are a silent loss — most are impossible to hear or see in a noisy industrial environment — and air losses of 25–30% are commonly found on a plant's first survey.
How do you detect compressed air leaks in an industrial plant?
Using the CTRL UL101 ultrasound diagnostic tool, which is sensitive enough to pick up the high-frequency ultrasound a minute leak generates, even from a distance, and convert it into audible sound and a meter reading.
Why is a compressed air leak survey important?
A single unnoticed leak can cost a plant lakhs of rupees a year, and the repair itself often takes less than an hour once found.
Which industries use this service?
This service scales from small and medium industry up to the largest process plants, including refineries, paper, power, automobile, and pharma.
What information does the customer receive?
With timely repair of identified leaks, plants have consistently brought losses down to under 5% of total compressor capacity by the second or third year.

