Vaccum Inspection in Detail

Vacuum Box Inspection is a practical and widely used non-destructive technique for detecting through-leaks and surface-breaking discontinuities in weld seams — particularly on tank floors, vessel shells, and pipeline components. By creating a sealed vacuum over the test area and applying a soap solution, bubbles form where leaks are present, allowing for immediate, visible confirmation of defect locations.

At 2R Inspection, our vacuum box testing services are conducted by certified technicians using custom-designed boxes tailored to various weld geometries and surface conditions. This method is ideal for testing new welds during fabrication or verifying repairs in service. It provides a safe, low-cost, and efficient way to ensure that welds meet acceptance criteria defined by codes such as API 650, ASME Section V, and AWS D1.1. Our process includes surface prep, vacuum integrity checks, visual detection, and detailed reporting. With 2R Inspection, clients can trust their welded assets are leak-free, compliant, and ready for critical service — without the need for pressurization or destructive evaluation.