Union Instruments
Pipelines have to be protected from corrosion by a pore-free coating. To ensure that the factory coating and the coating applied at the work site are free of pores, they are tested by applying high voltage between the steel pipe and a test electrode. If a spark-over occurs here, this indicates a defect in the coating. This coating must be touched up and then must undergo another test. The mobile UIP insulation tester (photo) delivers reliable testing of pipe coatings for defects. With adjustable test voltages of 5 to 30 kV and a comprehensive assortment of corresponding test electrodes, coated pipes and system components can be quickly and reliably tested. Typical applications of the device are pipeline construction and liquid gas tanks. — Union Instruments GmbH, Karlsruhe, Germany