Vacuum chambers

Our vacuum chambers are designed to verify that weldings are watertight. With the vacuum chambers we perform a non destructive test. With this test we try to detect the presence of defects on the weldings or materials that would allow leakages and therefore the loss of the watertightness. The chambers are a waterproof container that we manufacture in several materials. This container is transparent or at least is equipped with a transparent viewing window allowing the operator to see what happens inside. 

Once created vacuum in the area to test, we could observe the pressure inside the enclosure. In case there would be a leakage the pressure will increase gradually until the atmospheric pressure is reached. This change in pressure would be an indication of the existence of a welding spot from where outside air is entering. This spot will be located for further repair. For this, the welding is pre-moistened with a solution of soapy water. The air that penetrates inside the enclosure produces then bubbles that rapidly indicate the location of the defect.

Among the advantages obtained from such non-destructive testing over other types of tests used for welding inspection, the most important would be:

• The equipment used in the testing is not in any way complex or expensive. 

• The test may be performed on site, without much preparation for its execution, making it ideal for the inspection of large parts and long welding beads.

• It can be applied to any type of welding and material. 

• The elements and materials used in the inspection are not aggressive in any way for the operator making the inspection or for the environment. 

• Great speed. Such tests guarantee a great economy of time. 

• Lightweight and easy handling of equipment. 

• This is a very economical non-destructive testing.