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UltraProbe "Probe" Anodes by Farwest Corrosion

Product Description "Stinger" anode without insulating support shield. "Scepter" anode with insulating support shield.   Farwest UltraProbe Series impressed current probe anodes are an effective solution when there is a need to protect the internal surfaces of a structure, such as a condenser water box, process tank, pressure vessel, intake / discharge piping, or similar. Available in a wide variety of sizes, materials and configurations, these probe anodes allow through-wall installation of the anode from the exterior of the structure. Anode Materials The anode element is available in a number of material choices including: Platinized niobium* Platinized titanium* Mixed metal oxide (MMO)** * Platinum thickness can vary from 50 to 300 microinches. Physical Considerations Depending on the probe anode application, diameter of the anode, flow rates and other considerations, probe anodes may or may not require the use of a non-metallic support shield. This shield is designed to provide structural support to the anode rod and to provide current shielding properties. For instance, a 0.750” diameter anode may not need a support shield, whereas a 0.375” diameter anode may need additional mechanical support. Farwest offers two anode model configurations, as follows: The “Stinger” anode, which does not include an insulating support shield. If required, a heat shrink tube can be added to the anode rod to deactivate a portion of the anode.   The “Scepter” anode, which does include an insulating support shield. The insulating shield can be either Nylon or Delrin.   

Created by: Pipeline Corrosion Control

Last updated 11/2025

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Description

Product Description "Stinger" anode without insulating support shield. "Scepter" anode with insulating support shield.   Farwest UltraProbe Series impressed current probe anodes are an effective solution when there is a need to protect the internal surfaces of a structure, such as a condenser water box, process tank, pressure vessel, intake / discharge piping, or similar. Available in a wide variety of sizes, materials and configurations, these probe anodes allow through-wall installation of the anode from the exterior of the structure. Anode Materials The anode element is available in a number of material choices including: Platinized niobium* Platinized titanium* Mixed metal oxide (MMO)** * Platinum thickness can vary from 50 to 300 microinches. Physical Considerations Depending on the probe anode application, diameter of the anode, flow rates and other considerations, probe anodes may or may not require the use of a non-metallic support shield. This shield is designed to provide structural support to the anode rod and to provide current shielding properties. For instance, a 0.750” diameter anode may not need a support shield, whereas a 0.375” diameter anode may need additional mechanical support. Farwest offers two anode model configurations, as follows: The “Stinger” anode, which does not include an insulating support shield. If required, a heat shrink tube can be added to the anode rod to deactivate a portion of the anode.   The “Scepter” anode, which does include an insulating support shield. The insulating shield can be either Nylon or Delrin.    Current Outputs  Current output ratings vary depending on a number of factors. These include anode material selection, anode diameter, active length, electrolyte properties, temperature, flow rates, and required design life. As a guideline, the following graphs provide projected service life of a platinized niobium anode with 200 microinches of platinum.     The following graphs provide projected service life of a Lida MMO anode.   Typical Anode Configuration Anode Mounting Configurations Placement of each anode depends on a number of factors including internal current requirements, physical obstructions, flow rates, etc. Installation options include direct insertion through threaded weld-on tank fittings, flanged nozzles or other similar entry configurations. Once installed in the appropriate location, a single wire is routed from the anode to a cathodic protection rectifier. "Stinger" anode mounted to a drilled blind flange.
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