Farwest Corrosion’s MMO linear wire anode is an ideal product for use when a low-current, distributed cathodic protection system is needed. Typical uses for this style of anode include the protection of tank bottoms, pipeline systems and other underground structures.
At the heart of the anode system is high-grade, titanium wire with a Mixed Metal Oxide (MMO) catalyst coating, which serves as the anode. There are three choices of anode wire diameters, which dictates the current output rating for the anode.
The anode wire is prepackaged in a porous, non-woven fabric “sock” that contains calcined petroleum coke breeze to reduce the resistance-to earth of the anode circuit and to increase the life of the anode. The sock diameter is approximately 1.5 inches and is installed right from the factory provided reel into the trench.
Substrate: ASTM B348 Grade I / II Titanium
Catalyst: Mixed Metal Oxide
Cable: #6 AWG cable with either HMWPE or Kynar/HMWPE insulation.
MMO wire-to-cable connections are crimped at 5 to 10 meter intervals as required
Easy handling and installation
Up to 50-year service life depending on output
Anode Header Cable
The header cable, in parallel to the anode wire, is #6 AWG stranded copper with either high molecular weight polyethylene (HMWPE) insulation or a dual insulation of Kynar/HMWPE. The MMO anode wire is connected to the header cable via a high-pressure crimp connector to ensure a low resistance connection. That connection is then sealed in a splice kit with epoxy resin to prevent water intrusion.