For an improved current output, MMO anode can be prepackaged in a galvanized steel canister containing carbonaceous backfill, ready for direct installation. The actual anode inside the canister can have a wide range of configurations, including tubular, wire, rod, ribbon and mesh types. However, the most common configuration is the tubular anode. Canister MMO anodes are commonly used for impressed current cathodic protection of metallic pipelines and storage tanks in either shallow vertical or horizontal surface groundbeds, as well as wet, marshy soil conditons where caving is likely to occur. The canisters can be singular or assembled in chains.
Quality Substrate Material
Our MMO tubular anode is manufactured from high-tensile seamless titanium tube, which meets ASTM B338 Grade 1 standards.
Element
Grade I
Grade II
Iron (Fe)
0.20% max.
0.30% max.
Carbon (C)
0.08% max.
0.08% max.
Nitrogen (N)
0.03% max.
0.03% max.
Hydrogen (H)
0.015% max.
0.015% max.
Oxygen (O)
0.18% max.
0.25% max.
Single Impurity (Each)
0.10% max.
0.10% max.
Other Impurities (Total)
0.40% max.
0.40% max.
Titanium (Ti)
Remainder
Remainder
Noble Metal Oxide Coating
Whether operating in soil, fresh water, seawater or mud, mixed metal oxide coatings demonstrate high chemical stability, even in environments with a low pH value. Based upon accelerated life testing, conducted by an independent laboratory, our MMO coating has been proven to have an increased life expectancy when compared with other similar products on the market. Differing coating thickness and different noble metal oxide ratios are available on request.
◉ Ir–Ta Mixed Metal Oxide Catalyst
The iridium-tantalum mixed metal oxide catalyst is recommended for use in soil or fresh water, where there is either no
chloride ions or low chloride ions present.
|
Technical Measurement |
Performance |
| Coating Element |
IrO2, Ta2O5 |
|
Coating Thickness |
5~10 μm |
|
Coating Uniformity |
85% min. |
|
Working Environment |
Fine sand, Coke Breeze, Freshwater |
◉ Ir–Ru Mixed Metal Oxide Catalyst
The iridium-ruthenium mixed metal oxide catalyst can be used in seawater, brackish water, mud, concrete and any other severe environment conditions including high acidity or in the presence of chlorine or oxygen.
|
Technical Measurement |
Performance |
| Coating Element |
IrO2, RuO2 |
|
Coating Thickness |
5~10 μm |
|
Coating Uniformity |
85% min. |
|
Working Environment |
Mud, Concrete, Seawater |
* We can produce anodes with different nobel metal oxide ratios and differing coating thickness as specific required.
Low Electrical Resistance
The MMO anode has an extremely low consumption rate, measured in milligrams per ampere-year. The dimensions remain nearly unchanged throughout the design life of the anode, providing a consistently low resistance.
Low Maintenance Cost
MMO tubular anodes are a high performance anode specifically designed for harsh environments and areas where conventional installations and replacements would be economically or logistically restricted. When compared to other anode types, it can save up to 15%-35% of installation costs.
Wide Cable Selection
PVDF, HMWPE, HALAR, XLPE, PVC or KYNAR are all optional. We recommend dual-insulated cable(such as PVDF/HMWPE) for use in ground beds with high chloride concentration. While HMWPE is an economical choice for shallow vertical and horizontal surface beds with no chloride presence.
