We manufacture a wide range of Nail Hole Detector
, which generates high voltage dc for testing. it has capacity to test various coatings. When voltage is applied to the coated area the pin hole or defective points of coating is detected by this equipment. When any pinhole is detected, the high voltage spark occurs on pipe. An electronic buzzer also beeps at the same time, which indicates detection of pin hole. Moreover, for fault detection indicator led is also provided.
- Negative end of this supply is connected to substrate.
- Positive is connected to the moistened sponge brush.
- When the sponge is moved over a pin hole, solution penetrates the flaw and feeble electric current flows to the substrate and completes the electrical circuit.