MMO Canister Anode:
Canister anodes consist of MMO/Ti (tubular, wire, rod, mesh) anode installed in a large metal canister that is filled with coke breeze backfill.
Saga provides canister anodes whose core is in MMO tubular or wire anode wrapped with galvanized steel canister.
The canister is capped with the anode cable extending out the top of the anode cap.
It is commonly used in cathodic protection field, such as buried pipelines or ground beds.
Parameter:
Canister in MMO wire
| Canister Dimensions | Wire Dimensions | Current for 20 yr life | Net Backfill Weight | |
| Length (A) | Diameter (C) | Length (B) | ||
| cm | cm | cm | amps | kgs |
| 100 | 7.6 | 90 | 0.6 | 4.5 |
| 150 | 7.6 | 140 | 1 | 7.7 |
| 200 | 7.6 | 190 | 1.4 | 10.4 |
| 100 | 7.6 | 90 | 1.3 | 4.5 |
| 150 | 7.6 | 140 | 2 | 7.7 |
| 200 | 7.6 | 190 | 2.8 | 10.4 |
“S”indicates 1.5mm wire, “H” indicates 3mm.
Canister anode in MMO tubular
| Model | Canister Dimensions | Tubular Dimensions | Current for 20 yr Life | Net Backfill Weight | ||
| Length (A) | Diameter (C) | Diameter (C) | Length (B) | |||
| cm | cm | cm | cm | amps | kgs | |
| A | 70 | 7.5 | 1.6 | 50 | 2.5 | 3.1 |
| B | 150 | 10 | 1.9 | 100 | 6 | 11.8 |
| C | 200 | 15 | 2.5 | 100 | 8 | 35.3 |
| D | 213.3 | 20.3 | 3.2 | 120 | 12 | 69 |
Construction:
The basic anode in a canister anode is a MMO wire or tubular anode, which is comprised of a precious metal oxide coating applied to a titanium base. The metal oxide coating is completely stable, and does not corrode, as is the case with traditional massive type anodes, such as silicon iron, graphite.
The stable anode element passes current to a highly conductive calcined petroleum coke breeze. This backfill is well compacted inside a galvanized steel canister. To allow moisture to quickly migrate to the coke breeze for increased electrical conductivity, the MMO anode element is electrically connected to the steel canister – thereby accelerating the canister corrosion rate once the anode has been installed and energized.
Application:
Shallow vertical and horizontal surface ground beds;
Above/underground storage tank;
Reinforced concrete structures;
Pipelines
Benefits:
Durable: hardly to breakage or damage;
Lightweight;
Easy to Handle and Install;
Reduces Excavation and Drilling Costs;
