Pipeline Corrosion Control

Lida MMO Solid Rod Anodes by De Nora Tech

Created by: Pipeline Corrosion Control

Last updated 11/2025

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Description

LIDA Rod Anodes are comprised of a titanium substrate with a mixed metal oxide (MMO) coating. The mixed metal oxide is a crystalline, electrically conductive coating that activates the titanium and enables it to function as an anode. The anode rods are provided in a standard 4 foot length, but the anodes may be custom made to virtually any length. The standard anode diameters include 1/8", 1/4", 1/2", and 3/4". Anode coatings are available in "Standard" or "XL" depending on your application or anode current and/or life requirements. At Farwest, we can custom fabricate an anode assembly to include the LIDA anode rod of your choice. This includes adding a cable lead with connection encapsulation, customizing probe-type anodes and more. Contact a Farwest representative to assist you with your fabrication questions. Applications Water Tank Tnteriors Process or Production Vessels Water Condenser Boxes Heat Exchangers Water Intake Structures Groundbed (in coke breeze) Features High Current Output Low Coating Wear Rate Five Year Product Warranty Available as Rod Anode Assemblies Benefits Lower Cost per Ampere-Year Constant Electrical Resistance Standard Anode Rod Sizes LIDA Rod Anodes are available in these standard sizes: 1/8" x 4' 1/4" x 4' 1/2" x 4' 3/4" x 4' Typical Rated Current Output for LIDA MMO Anode Rods Application Anode Dia.(inches) Design Life (years) Rated Current Output(Amps per linear inch) Freshwater 0.1250.250.500.75 10101010 20202020 0.0670.1340.2680.400 0.0440.0880.1670.270 Seawater 0.1250.250.500.75 10101010 20202020 0.1400.2800.5700.840 0.1230.2450.4900.740 Coke 0.1250.250.500.75 10101010 20202020 0.0520.1030.2100.310 0.0350.0690.1400.210 Sand 0.1250.250.500.75 15151515 30303030 0.01670.00330.00670.0100 0.000940.00190.003750.00556 Selection of the anode coating is based on operating environment. Anode Life Expectancy Data Due to the extremely low consumption rates and dimensional stability of mixed metal oxide anodes, the electrical resistance of De Nora Rod Anodes remains essentially constant with time. The high current density capacity of De Nora mixed metal oxide anodes has the added advantage of allowing high current overloads for initial polarization without causing harm to the anode. Lida MMO anode rods are available in a number of custom impressed current assembly confiruations that include: Probe anode assemblies for insertion into interiors of oil or other production vessels For soil (with coke breeze) or water applications with a single lead wire For soil applications where the rod is installed in a canister with coke breeze backfill Probe Anode Assemblies Probe anodes are typically for use in the interiors of oil or other production vessels. Configurations vary depending on the performance requirements, fitting sizes, etc. Contact a Farwest representative for assistance in an anode design. Conventional Style Assemblies Lida MMO anode rods can be made with a conventional cable lead for use in soil or water applications. Typically, the cable-to-anode connection is sealed in a water-tight assembly to protect the connection from failure due to physical stress or water intrusion. However, these assemblies can be customized as required by specification or application. Contact a Farwest representative for design or application assistance.