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Vacuum Box Testing is a reliable and non-destructive leak detection method designed to test weld seams on non-pressurized components. It identifies through-leaks by creating a vacuum over the test area and visually detecting bubble formation from applied leak solution.
Vacuum Box Testing is a surface inspection technique that detects leaks by creating a pressure differential across a localized area. A sealed vacuum box is placed over the test surface—typically a weld seam or joint—and a vacuum is drawn inside. Leak detection fluid (usually soapy solution) is applied, and the formation of bubbles indicates the presence of a leak.
This method is extensively used in industries dealing with pressure vessels, storage tanks, ship hulls, and pipelines where internal pressurization is not feasible. Kaztron NDT provides on-site vacuum box testing with customized box sizes to accommodate curved or flat surfaces, ensuring fast and accurate leak detection.
Vacuum Box Testing offers immediate leak identification without damaging the component. Our skilled inspectors use portable equipment and tailored boxes for accurate testing across multiple applications.
Let’s make your tanks and vessels leak-proof.
Our team offers on-site vacuum box testing for a wide range of applications, ensuring quick detection and actionable results—before minor leaks become major problems.
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Kaztron NDT ensures accurate and timely detection of leaks in critical components using standardized vacuum testing techniques. Our solutions support safe operations in storage, transport, and processing industries.
Immediate bubble visualization ensures high detection reliability.
Low equipment and setup costs make this ideal for routine inspections.
Leak paths are clearly visible to inspectors during the test.
Can be applied on curved shells, flat plates, and non-pressurized systems.
Explore some of the most commonly asked questions about our Vacuum Box Testing service.
It is used to detect through-leaks in welds or seams of non-pressurized components like storage tanks, vessels, and ship hulls.
Leaks are identified by bubble formation in the applied soapy solution when vacuum draws air from the leak point.
No, that’s the advantage—it uses external vacuum and doesn’t require internal pressurization.
Yes. Custom-shaped vacuum boxes allow for effective testing of both flat and curved surfaces.
Yes. It may not detect extremely small or slow leaks and can only test localized areas at a time.
Yes. As it’s non-invasive and uses mild testing fluid, coatings remain unaffected with proper handling.
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Kaztron NDT Pvt Ltd offers certified NDT training and inspection services, helping industries and professionals ensure safety, quality, and compliance through advanced testing techniques.