Tank Ring Anode System™

Tank Ring Anode System™

The MATCOR Tank Ring Anode System is a factory-manufactured impressed current CP system for above-ground storage tank bottoms, using numbered concentric SPL-Anode rings pre-cut to length for each tank. No field anode assembly is required; most systems install in under two hours.

Tank Ring Anode System™ Key Benefits

Fast, easy installation
No field anode assembly required—factory-assembled system is ready to install
Systems available for new and retrofit tanks
Superior current distribution
Reliable Kynex® connection technology

Tank Ring Anode System™ Components

MATCOR Tank Ring Anode cathodic protection systems include:

  • Concentric SPL-Anode Rings manufactured to length and numbered for each position
  • Available in all current output sizes
  • MATCOR engineered anode placement with numbered anode rings
  • MMO Anodes used in the SPL-Anode assembly
  • Reliable Kynex® connection technology
  • MATCOR installation drawing indicating layout of SPL-Anode rings and reference electrodes

MATCOR also recommends the following optional equipment for a complete installation:

  • MATCOR under tank CUSO4 reference electrodes with sufficient cable to run to the junction box or rectifier
  • Ground cables and reference electrodes
  • Rectifier and junction box

Tank Ring Anode System™ Design

Tank CP design web app

Design Your Tank CP System in Minutes

Use our free web app to quickly design your tank bottom cathodic protection system in 3 easy steps.

Launch the App

You can also contact MATCOR engineering to size the Tank Ring SPL-Anode System for your tank. MATCOR will determine the number and length of rings, recommended reference electrodes and cable.

Tank Ring Anode System™ Ordering

To get started, call MATCOR with the following information:

  • Tank bottom diameter
  • Depth to line or second steel tank floor
  • Distance from tank to rectifier or junction box
  • Current output required
  • Life of system desired; systems can be 20 to 100+ years
  • Material below tank bottom and resistance if known

Simply order the system quoted and a complete, easy to install tank system will be shipped to your location.

Tank Ring Anode System™ Installation

This time-lapse video shows a 3-man crew installing one of the outer rings of a 240 ft diameter tank in just 8 minutes.The installation of your custom-manufactured MATCOR Tank Ring SPL-Anode System is fast and easy:

  1. Lay out anode rings per the drawing provided
  2. Run the anode lead wires to the junction box or rectifier without splicing or connecting to a header cable
  3. Place reference electrodes where designated
  4. Run all cables to rectifier or junction box

Tank Bottom Cathodic Protection System Installation Guide

Why MATCOR Materials?

MATCOR engineers and manufactures proprietary cathodic protection products in the USA, combining proven field performance with the quality systems and supply chain control that critical infrastructure demands.

Made in the USA, Built for the Field

Proprietary products manufactured in-house with millions of documented operating hours and reliable domestic supply chain control.

Engineered To Perform, Not Just Comply

Products designed by our own corrosion engineers to solve real-world problems, not just meet spec.

Proven Quality Systems

ISO 9001:2015 certified manufacturing with structured quality control and built-in continuous improvement processes.

Backed by Global Resources

The specialized expertise of a corrosion engineering company combined with the systems and oversight of a $6B global industrial services organization.

From application review to delivery and field support, getting the right CP and AC mitigation materials is an engineering decision—not just a purchase. Here’s what working with MATCOR looks like.

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MATCOR’s conceptual cathodic protection design services help you evaluate your options — our engineers gather application details, conduct on-site testing as needed, and present the impressed current or sacrificial CP systems that fit, along with benefits, approximate costs, and ongoing maintenance requirements. Backed by 45 years of experience, you get comprehensive options without the guesswork.
MATCOR technicians visit your site to collect the electrical transmission, pipeline, and soil resistivity data needed to evaluate fault current and induced AC corrosion risks and identify safety hazards per the latest NACE and industry standards. This field data feeds MATCOR’s AC modeling process, supporting effective AC mitigation system design.
AC interference modeling uses sophisticated software to analyze safety and corrosion risks — step-touch potential, induced AC, and shorted or fault conditions — for pipelines sharing right-of-way with overhead electrical transmission lines. MATCOR provides field data collection and complete AC modeling and analysis to determine interference risks and design the right AC mitigation system.
Tank bottom cathodic protection helps protect aboveground storage tanks from external corrosion and extend asset life. MATCOR installs storage tank corrosion protection systems for both new construction and retrofit projects. 

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