ELTECH Rod Anodes are comprised of a titanium substrate with a mixed metal oxide coating. The mixed metal oxide is a crystalline, electrically-conductive coating that activates the titanium and enables it to function as an anode.
Standard length of ELTECH Rod Anodes is 4 ft., but they may be custom cut to virtually any length.
Anode coating may be selected to match freshwater, brackish water, seawater, coke, or sand environments.
ELTECH LIDA® Rod Anode Typical Rated Current Output | |||||
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Application | Anode Diameter (inches) | Design Life (years) | Rated Current Output (Amps per linear inch) |
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Freshwater | 0.125 | 10 | 20 | 0.067 | 0.044 |
0.25 | 10 | 20 | 0.134 | 0.088 | |
0.50 | 10 | 20 | 0.268 | 0.167 | |
0.75 | 10 | 20 | 0.400 | 0.270 | |
Seawater | 0.125 | 10 | 20 | 0.140 | 0.123 |
0.25 | 10 | 20 | 0.280 | 0.245 | |
0.50 | 10 | 20 | 0.570 | 0.490 | |
0.75 | 10 | 20 | 0.840 | 0.74 | |
Coke | 0.125 | 10 | 20 | 0.052 | 0.035 |
0.25 | 10 | 20 | 0.103 | 0.069 | |
0.50 | 10 | 20 | 0.210 | 0.140 | |
0.75 | 10 | 20 | 0.310 | 0.210 | |
Sand | 0.125 | 15 | 30 | 0.0167 | 0.00094 |
0.25 | 15 | 30 | 0.0033 | 0.0019 | |
0.50 | 15 | 30 | 0.0067 | 0.00375 | |
0.75 | 15 | 30 | 0.0100 | 0.0056 |
For applications in vessel internals, ELTECH Rod Anodes are available with mounting assemblies, consisting of an FRP dielectric shield and 1″ or 1.25″ NPT nipple
ELTECH LIDA® Rod Anode Standard Assemblies | ||||
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Freshwater or Brackish Water | Sea Water Environments | |||
Part Number | FA-ROD 0.5FW | FA-ROD 0.75FW | FA-ROD 0.5SW | FA-ROD 0.75SW |
Max. Current Output (amps) | 1.6 | 2.4 | 9.7 | 14.6 |
Rod Diameter (in.) | 0.5 | 0.75 | 0.5 | 0.75 |
Total Length (in.) | 24 | 24 | 24 | 24 |
Active length max-user specified (in.) | 16 | 16 | 16 | 16 |
FRP Length (in.) | 6 | 6 | 6 | 6 |
Maximum water velocity (ft./sec.) | 2 | 5 | 2 | 5 |
Due to the extremely low consumption rates and dimensional stability of mixed metal oxide anodes, the electrical resistance of ELTECH Rod Anodes remains essentially constant with time.
The high current density capacity of ELTECH mixed metal oxide anodes has the added advantage of allowing high current overloads for initial polarization without causing harm to the anode.