The MMO Canister Anode is a high-efficiency, long-lasting cathodic protection solution designed for challenging, high-resistivity soil conditions. This pre-packaged unit integrates a high-performance Mixed Metal Oxide (MMO) Tubular Anode within a galvanized steel canister filled with conductive coke breeze. It is engineered for vertical or horizontal installation in deep wells, providing centralized, uniform current distribution for protecting large-scale or complex underground structures.
Core Construction & Design
Active Anode Core: A Hollow Titanium Tube with a standard diameter of 1 inch or greater and a length of 40 inches or greater, precisely sized to meet the required current capacity and design life. The substrate is manufactured to ASTM B338 standards (Grade 1 or Grade 2), activated with a proprietary Iridium-based Mixed Metal Oxide (MMO) coating.
Robust Canister: The anode is housed within a spiral-wound galvanized steel canister (wall thickness 0.6mm). Standard canister dimensions are a diameter of 3 inches or greater and a length of 60 inches or greater, providing mechanical strength and optimal groundbed contact.
Complete Unit Weight: The total weight of the assembled unit (anode, backfill, and canister) is 9 kg or greater, ensuring sufficient mass and density for effective performance and stable installation.
Conductive Backfill: The canister is pre-packed with premium coke breeze, which creates a large, conductive interface with the surrounding soil, reducing groundbed resistance and ensuring optimal current output.
Key Features & Advantages
Long Service Life & Stable Output: Designed to deliver a consistent current output of up to 5 Amperes for 20 years or more when used with carbonaceous backfill, guaranteeing long-term protection and reduced lifecycle costs.
Superior Current Discharge: The combination of the high-efficiency MMO anode and the coke breeze backfill allows for excellent current discharge in a wide range of soil resistivities.
Reliable Cable Assembly: Each unit is supplied with a factory-fitted, 20ft long, 8 AWG cable with HMWPE/Kynar insulation. The anode-to-cable connection is critically sealed with a proprietary, high-integrity, waterproof epoxy molding to ensure long-term reliability and prevent the primary failure point.
Installation Flexibility: Can be installed either vertically in deep wells or horizontally, adapting to specific site requirements and space constraints. Custom sizes are available upon request.
Applications
This anode is ideal for the cathodic protection of:
Underground Storage Tanks (USTs)
Above-Ground Storage Tank Bottoms
Buried Pipelines and Networks
Complex Plant Structures
Critical Installation Note
Special care must be taken during installation. Never lift or manipulate the anode by its cable. Always handle the canister itself to prevent stress on the critical cable-to-anode connection. The internal connection, while highly reliable, is not field-serviceable.
For optimal specifications, let us assist you. Reach out to our engineering team.
Email: nwhengyimetal@gmail.com
Phone: +86 13891704215
