Plastic Fabrications

High voltage can be used to check welded or overlap joints for defects, whether in a new plastic tank or an existing one that has been re-lined. PHD Pinhole/Holiday Detectors have an alarm circuit to alert the operator when a fault has been located and the required test voltage can be set on the unit’s meter.

Spark Testers provide an inexpensive means of testing but have no output voltage meter or audible alarm. However, they can test joints even if the backing is not connected.