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Model T Tube-sheet Mounted Reference Electrode by EDI

Model T Tube-sheet Mounted Reference Electrode by EDI
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Description

Cathodic protection applied to a waterbox can cause a non-uniform potential distribution to exist over the face of the tube sheet. These potential gradients cannot be detected by a remotely mounted reference electrode. Excessively electronegative potentials can result in hydrogen damage on titanium and ferritic stainless steel tubes while excessively electropositive potentials mean inadequate protection of the tube sheet. Model T references are the only means to verify that the actual potential at the tube sheet surface is within the acceptable range.

Typical Applications

  • Condenser tube sheets


Features

  • Ability to place a reference electrode in selected locations on the tube sheet
  • In-line underwater connector for easy removal
  • CPVC housing rated to 210oF
  • All non-metallic double tube plug for attachment
  • Patented design: U.S. Patent No. 4,957,616


Electrode Housing

  • Gelled Element: 1 1/16" dia. x 3" long gray CPVC housing
  • Dry element: 1" dia. x 2 " long gray CPVC housing


Element Types

  • AGG: Saturated gelled Ag / AgCl
  • CUG: Saturated gelled Cu / CuSO4
  • AGD: Dry-type Ag / AgCl
  • ZIN: 99.99% zinc


Electrode Termination

  • Female underwater connector on 6" (nominal) fully encapsulated lead wire


Lead Wires

  • Male underwater connector attached to #22 AWG Teflon insulated lead wires in the following colors: red, orange, yellow, green, blue, purple, brown, black, white, gray.