Impressed Current Anodes
For larger structures, or where electrolyte resistivity is high, galvanic anodes cannot economically deliver enough current to provide protection. In these cases, impressed current cathodic protection (ICCP) systems are used. These consist of anodes connected to a DC power source, often a transformer-rectifier connected to AC power. Anodes for ICCP systems are available in a variety of shapes and sizes. Common anodes are tubular and solid rod shapes or continuous ribbons or wires of various materials.
Mixed Metal Oxide (MMO) Titanium Ribbon Anode
PETUNIA ribbon anodes for using in under tank and reinforced concrete structures are manufactured in titanium substrate, which has been coated with Mixed Metal Oxides. The ribbon mesh anode is field assembled with titanium conductor bars and a resistance welder. The design life of the anode varies with the operating current.
Mixed Metal Oxide (MMO) Titanium Wire Anode
Piggyback MMO Titanium Wire Anode
For using in pipelines, the product comprises Mixed Metal Oxide Wire Anode material “piggybacked” to a cable at predetermined intervals (to aid convenient current distribution and avoid attenuation and decreased driving voltage). The MMO wire and cable are contained within a cotton sock filled with calcined petroleum coke breeze backfill. The Piggy back Anode is placed alongside the pipeline with a suitable length so that the carrier cable at each end of the anode loop can be connected to a junction box.
Mixed Metal Oxide (MMO) Titanium Mesh Anode
PETUNIA Anode Mesh is used in the cathodic protection of reinforced concrete structures The Mesh Anodes are manufactured in titanium substrate, which has been coated with Mixed Metal Oxide. The diffusion of chloride ions into the concrete leads to the corrosion of steel rebars. The best way to prevent steel-reinforced concrete corrosion is cathodic protection.