Vacuum / Pneumatic Box Testing
Vacuum box testing is a non destructive testing to find the leakage spots of weld seams. A vacuum box connected with a compressor air source to provide a vacuum field on area of interest. Bubbles from the detergent solution applied on the test part shall provide the visibility of the leakage area. Applicability of this test method is mainly on the annular plate welds of Storage tanks, duck plating of the Ships and Barges etc.