SPL™-INT-Anode

SPL™-INT-Anode

The MATCOR SPL-INT Anode System is the only patented impressed current linear anode system for cathodic protection of internal water and salt water pipeline surfaces. Entrance fittings are spaced up to 200 feet apart, requiring far fewer pipe penetrations than conventional probe anode methods.

SPL™-INT-Anode Key Benefits

Protects internal pipeline surfaces with the least number of entrance fittings
Provides uniform current distribution compared to probe anodes
Anodes can be replaced
Protects long lengths of piping
Uses MATCOR proven SPL-Anode technology

SPL™-INT-Anode Components

The SPL-INT Anode is a complete system that consists of one or more linear anode assemblies and fittings depending on the pipe configuration and final design. Each anode assembly includes:

  • SPL-INT Anode: the linear anode is designed specifically for this system with a made to length assembly and entrance fittings on each end.
  • As shown in the Drawing 1113-16-01, the fitting consists of a carbon steel or stainless steel pipe section ready to weld to the main pipeline, PVC flange set, entrance fittings and stainless steel nuts, bolts and washers. The entrance fitting is waterproof and designed for 150 lb. pressure.

In addition to the entrance fittings and linear anode assemblies, the following components are needed to complete the system:

  • Rectifier: MATCOR will help to size and provide the appropriate rectifier.
  • Reference Electrodes: A MATCOR probe type, silver-silver chloride reference electrode is recommended for the SPL-INT Anode system. The number of electrodes will depend on the system configuration and application.
  • Cabling and possible junction boxes.

SPL™-INT-Anode Design

MATCOR engineers will configure and design your SPL-INT Anode cathodic protection system design, from data collection to complete design drawings and specifications. MATCOR engineers will require pipe diameters, flow rates, description of the material flowing in the pipeline and the configuration of the piping. Anodes can be up to 200 ft. in length and the system is generally used on larger diameter piping.

SPL™-INT-Anode Installation

Contact MATCOR for the installation instructions. Installation varies with each application of the engineered SPL-INT Anode system. The general steps include:

  1. Cut holes for the steel piping for the entrance fittings
  2. Weld the steel fitting to the pipeline.
  3. Pull the anode assembly through the pipeline with cable puller provided by MATCOR.
  4. Finish installation of the entrance fittings to create a waterproof seal.
  5. Install the probe reference electrode(s).
  6. Install the rectifier and junction box with the cabling as required.

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 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.
A cathodic protection anode bed is commonly used to protect pipelines, well casings, water systems, and other large infrastructure assets where current must be distributed over a broad area.

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