Leak Tightness Test Test
Detects leaks in sealed systems under pressure or vacuum conditions.
What this test verifies
Leak tightness testing confirms that mechanical connections and sealed systems do not allow fluid or air leakage.
Why it matters
Leaks can reduce system efficiency and compromise safety, reliability and final handover quality.
Typical commissioning stage
Typical stage
Measurement method
- Instrument: leak detection equipment or pressure monitoring instrumentation.
- Connection: bring the system to the defined pressure or vacuum test condition.
- Measurement: inspect the system while monitoring for loss of pressure, air ingress or direct evidence of leakage.
- Recording: document test condition, leak detection method, locations checked and result.
Acceptance criteria
- No detectable leakage is present.
- Pressure or vacuum conditions remain stable within the defined tolerance.
Commissioning notes
Leak tightness testing is used in commissioning to prove that sealed systems and mechanical connections remain leak free under the conditions that matter for operation.
It is especially valuable after installation and assembly because leaks often come from small workmanship issues that are difficult to detect visually but critical for performance and safety.
FAQ
Why is leak tightness testing important even after a pressure or vacuum test?
Because leak detection focuses specifically on proving that no fluid or air escapes through joints, seals or interfaces under the relevant test condition.