Overview
The RPR Thru-Wall Reference Electrode is a permanently installed reference electrode engineered for accurate internal potential measurement in pressurized, submerged, and process-service cathodic protection systems. Designed for direct installation through vessel walls, piping, condensers, water boxes, and process equipment, the RPR enables reliable structure-to-electrolyte potential measurement under true operating conditions without compromising system integrity.
Built for demanding industrial environments, the RPR combines stable reference electrode chemistry with a sealed through-wall assembly and controlled porous junction to deliver long-term measurement stability in high-pressure and high-moisture service conditions. Its low-noise, low-drift design supports accurate polarization monitoring, corrosion-rate evaluation, and CP system verification where conventional external reference placement is impractical or unreliable.
Engineered for integration into advanced corrosion monitoring and infrastructure integrity programs, the RPR supports continuous monitoring of critical process systems, industrial assets, marine equipment, and utility infrastructure requiring high-confidence internal potential measurement.
Key Features & Benefits
Through-Wall Monitoring Design
Provides direct internal potential measurement without compromising vessel or piping integrity.
Stable Reference Chemistry
Available with proven reference half-cell chemistries for accurate long-term CP monitoring.
Pressure-Resistant Construction
Engineered for demanding industrial environments including vessels, piping systems, and water boxes.
Porous Junction Technology
Maintains ionic exchange while protecting the internal reference cell from contamination.
Permanent Monitoring Integration
Compatible with junction boxes, CP monitoring systems, and long-term industrial installations.
Typical Applications
- Internal cathodic protection monitoring for pressure vessels and process tanks
- Condensers, water boxes, and circulating-water systems
- Industrial piping and process-fluid handling systems
- Marine and offshore process equipment
- Utility infrastructure requiring internal potential monitoring
- Long-term corrosion monitoring and CP verification programs
Installation & Accessories
Through-Wall Mounting Design
Engineered for direct installation through vessel walls, piping systems, and industrial process equipment.
Sealed Electrical Connections
Watertight cable assemblies maintain reliable signal integrity in pressurized environments.
Optional Mounting Hardware
Available with custom fittings, sealing components, and protective connection assemblies.
Monitoring System Compatibility
Integrates with CP monitoring systems, junction boxes, and process control platforms.
Custom Through-Wall Configurations
Available with multiple reference chemistries, cable types, and pressure-rated assemblies.
Documentation
- Technical Data SheetDownload 297 KB
Engineered for your application
No two cathodic protection systems are identical. Tell us the current requirement, electrolyte and installation constraints and we will configure the anode around them.
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