Vacuum Testing is a practical method used to detect leaks in welded parts. In vacuum testing, a pressure difference is created and controlled based on the inner and outer surface of the tested area. Main areas of use are piping systems, pressurized tanks and storage tanks.
There are different types of vacuum testers depending on the application area. Vacuum testing is suitable for checking lap welds, butt welds and fillet welds.
In vacuum testing, small weld zones are checked to ensure more precise results.
Before the vacuum test, the manometer and vacuum hose are connected to the vacuum canister. The soapy mixture is then sprayed onto the weld and the vacuum can is placed on the weld to create a vacuum. The weld area is evaluated, if there is a decrease in vacuum or bubbles start to form, it is understood that there is a defect in that area.