Porosity Detectors
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PCWI Compact DC High Voltage Porosity Detector detects pinholes, air bubbles, and porosity in non-conductive coatings on conductive substrates, including steel and concrete. Available in two voltage ranges: DC 15 (to 15kV) or DC 30 (30kV), PCWI DC High Voltage Porosity Detectors are ideal for use on storage tanks, valves, structural members, and pipelines. Light-weight, hand-held Porosity Detectors come with a full range of internal and external brush options, as well as flat brushes and pipeline coils from 2" to 56 inches in diameter. Custom sizes available by special order.
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PCWI Compact Pulse High-voltage Porosity Detector with regulated pulsed output for detection of porosity - bubbles, pinholes, 'holidays' - in dielectric coatings on conductive substrates, including concrete. Ideal for moist conditions, wet or contaminated coatings, or coatings likely to become electro-statically charged, the PCWI Pulse High-voltage Porosity Detector is available in three voltage models: P20 (0 - 20 kV) and P40 (0 - 40 kV) for carbon-impregnated coatings including carbonated rubber, or thick coatings such as rubber linings, and the Pulse 50 (0 - 50 kV) for use on Rubber Coatings only.
Industry names for Porosity Detectors include: jeepers, spark testers, holiday detectors, pinhole testers.
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PCWI Low Voltage Porosity Detector uses the Wet Sponge method to detect pinholes in coatings under 20 mils thickness. PCWI Low Voltage Porosity Detector features a large sponge and telescoping handle in 3-Voltage selectable and single voltage models. Conforms to ASTM G62-A.
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Tinker & Rasor Model M/1 Low Voltage Porosity Detector features regulated 67.5 v DC output voltage to locate pinholes in thin film coatings up to 20 mils thickness using the Wet Sponge Method in accordance with NACE RP0188. M-1 is available as a battery-operated unit for coatings inspection in the field, or as AC-supplied M1/AC for use where standard AC electrical supply is available.
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Tinker & Rasor APS High-Voltage Holiday Detector is a stick-type pinhole detector featuring pulsed DC output ranging from 800 to 35,000 volts. Trigger-release safety-switch instantly shuts the instrument down, eliminating power-on when unattended. Audible and visual pinhole indicators, weather and dust-sealed voltage selector, high and low voltage ranges are key features of the APS porosity detector.
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