Water Tank Rectifiers

This unit was developed to provide cathodic protection for water tanks. It features two independent controls, one for tank or bowl inside and another for tank bottom or riser protection. Constant voltage output control is provided for the bottom/riser circuit and constant voltage or constant potential control is furnished for the tank/bowl circuit.


  • Two separate controllable outputs.
  • Constant Voltage Control mode: In this mode of operation, the rectifier output voltage is set by the operator and is held constant at the set point. The rectifier's output current changes as load resistance changes.
  • Constant Potential Control mode: The operator has the capability of setting the desired reference to structure potential over a wide range (0 - 2.5 volts). A permanent reference half-cell is required for the constant potential rectifier to operate in potential control mode. The reference cell to structure potential is sensed by the controller and compared to the set potential programmed in by an operator. If there is a difference between the two, the rectifier automatically adjusts its output to compensate for the difference.
  • Both controls allow fine adjustment from 0 to the rated output so just the right amount of current can be applied.
  • Heavy duty powder coated steel NEMA 3R enclosure included. Other enclosure types are available upon request.

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LP Hoying, LLC | PO Box 275, Russia, OH 45363-0275 | Phone 937-776-9773 | Email dhoying@lphoying.com


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