Because Gappscan does not require the heat exchangers to be disassembled and the test is very quick you can schedule inspections more frequently to suit your business needs.
Dye penetrant testing requires the heat exchangers to be disassembled to inspect for holes and can take up to 48 hours to get results, as a non invasive integrity testing technology, Gappscan has no requirement to disassemble heat exchanger.
Traditional methods have many environmental issues. Chemicals and dyes have to be manufactured for tests and disposed of afterwards, mainly into the plant effluent system and then into a watercourse. The Gappscan test uses water and is battery powered. Gappscan has little to no negative impact on the environment, addressing environmental concerns.
Gappscan has been validated against known sized holes by external parties, confirming the accuracy of Gappscan. Dye testers may say that their method has been used for many years, so it must work, even though the procedure used is not a qualified test method.
Dye testers will mostly be carrying electrically operated equipment, either 110v, 240v or 415v while spraying dyes and water around vessels; electric shock is always a possibility. Additionally, the dyes and water have a viscous quality and create a risk of slipping or falling inside of the vessel. When spraying dyes, there is also an issue with inhalation. Gappscan, involves no viscous liquid and eliminates the above risks.
No additional safety steps needed – its inherently safe.
The actual test takes less than 5 minutes.
Gappscan can be deployed on all types of heat exchangers including plate and tubular.
Yes, Gappscan has been shown to accurately identify cracks as small as 5μm.
In accordance with EIT International’s ISO 9001 accreditation, all test equipment has unique numbering and is returned for annual upgrading when necessary, servicing and calibration.