MMO Canister Anode
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.
Description
Quality Substrate Material
Our MMO tubular anode is manufactured from high-tensile seamless titanium tube, which meets ASTM B338 Grade 1 standards.
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. The Ir–Ta mixed metal oxide catalyst is recommended for soil or freshwater, where there is either no chloride ions or low chloride ions present. The Ir-Ru mixed metal oxide catalyst is recommended for brackish and seawater. 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.
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.
Long Working Life
The design life of the anode varies with the operating current supplied for the various applications.
Electrochemical Properties
| Anode Size | Application | Current Rating | ||
| for 15 yrs. | for 20 yrs. | for 25 yrs. | ||
| Ø1″ × 40″ (Ø25×1000 mm) | Freshwater / Coke Breeze | 11A | 8A | 7A |
| Brackish Water | 32A | 24A | 19A | |
| Seawater | 64A | 48A | 41A | |
| Ø1″ × 60″ (Ø25×1500 mm) | Freshwater / Coke Breeze | 16A | 12A | 10A |
| Brackish Water | 48A | 36A | 29A | |
| Seawater | 96A | 72A | 58A | |
| Ø1-½″ × 48″ (Ø25×1000 mm) | Freshwater / Coke Breeze | 16A | 12A | 10A |
| Brackish Water | 48A | 36A | 29A | |
| Seawater | 96A | 72A | 58A | |
Physical Properties
| Model | Diameter | Length | Current Output | |
| in Coke / Soil (100A/m²) | in Seawater (600A/m²) | |||
| JA – MMO – T160 | 5/8″ (16 mm) | 39.4″ (16 mm) | 5Amps | 30Amps |
| JA – MMO – T190 | 3/4″ (19 mm) | 39.4″ (16 mm) | 6Amps | 36Amps |
| JA – MMO – T250 | 1″ (25 mm) | 39.4″ (16 mm) | 8Amps | 48Amps |
| JA – MMO – T250L | 60″ (1524mm) | 12Amps | 72Amps | |
| JA – MMO – T320 | 1-¼″ (32 mm) | 48″ (1220mm) | 12Amps | 72Amps |
| JA – MMO – T500 | 2″ (50 mm) | 47.2″ (1200mm) | 19Amps | 114Amps |
Remarks: Other configurations are available on request.
