Way Ahead In Corrosion Control

TankGard HP-1Z

Cathodic protection reference electrode for process vessels and tanks

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Cathodic protection system for process vessels and tanks

The Polatrak HP-1Z is a permanent reference electrode designed to allow positive monitoring and/or control of internal cathodic-protection systems for tanks and pressure vessels. It is one of the staple innovations of the TankGard system, and is not available on other tank cathodic-protection systems. The HP-1Z E (extended) provides the electrode element on an extension wire inside the vessel.

This makes it suitable for a number of applications where the electrode needs to be located in a specific area, or where internal access is limited to the upper areas of the tank or vessel. It is also ideal for monitoring tube-sheets in condensers or exchangers.

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Suitable for most vessels

This instrument is rated to 3,000 psi, which makes it suitable for almost any vessel (access through either a 1/2" or 3/4" NPT fitting). The electrode may be wired to a monitoring station or simply read directly at the vessel using a regular multi-meter. The self-bleed zinc electrode provides a rugged +/- 20 mV electrode for just about any environment, and can be inserted through any fitting providing a ½" or ¾" NPT access.

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Anode type Al/Zn Gross weight (kg) Net weight (kg) L1 (mm) L2 (mm) W (mm) T (mm) D (mm)
A3.5HB Al 3.6 3.5 160 300 150 32 32
A3.5HB Al 3.6 3.5 160 300 150 32 32
A3.5HB Al 3.6 3.5 160 300 150 32 32
A3.5HB Al 3.6 3.5 160 300 150 32 32
A3.5HB Al 3.6 3.5 160 300 150 32 32
A3.5HB Al 3.6 3.5 160 300 150 32 32
A3.5HB Al 3.6 3.5 160 300 150 32 32
A3.5HB Al 3.6 3.5 160 300 150 32 32
A3.5HB Al 3.6 3.5 160 300 150 32 32
A3.5HB Al 3.6 3.5 160 300 150 32 32

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