MMO Linear Anode (Solid Titanium MMO Wire)
MMO linear anodes, also known as flexible anodes, are an ideal product for use when a low-current, evenly distributed cathodic protection system is needed. The core of the anode is composed of high-grade, titanium wire with a Ir–Ta mixed metal oxide catalyst coating. The titanium wire is prepackaged in a porous, non-woven fabric “sock” that contains high conductivity calcined petroleum coke breeze —— enhancing the anodes abrasion and damage resistance.
The power cable attached is #6 AWG stranded copper with either high molecular weight polyethylene (HMWPE) insulation or a dual insulation of Kynar/HMWPE. This cable has the capacity to maintain the required current over considerable distance without incurring substantial longitudinal voltage drop.
The MMO linear anode has the advantage of easy installation and handling as well being cost efficient. Typical uses for this anode include the impressed current cathodic protection of in-plant piping, buried oil (gas) pipelines, petrochemical container, tank bottoms and other underground structures.
Additional information
| Application | Pipelines, Storage Tank |
|---|---|
| Environment | Soil |
Description
Description
Key Features
Quality Substrate Material
Oue linear anode is comprised of Gr1 or Gr2 titanium wire (ASTM B348) with IrO2/Ta2O5 based MMO catalyst coating. Unique sintering coating technology allows for long product life.
Evenly Backfill Filling
High performance calcined petroleum coke breeze is tightly pre-packaged and evenly distributed all around the anode, serving as the active matrix in which the electrochemical reactions take place.
Protective Braid Fabric Jacket
MMO linear anode is prepackaged within porous, woven acid-resistant synthetic sleeve. This tough sleeve is sewn together using a poly two or four-thread double interlocking stitch, which prevents the seam from separating during installation, or when stored in high temperature conditions.
Reel Packing for Easy Transportation
The sock diameter is approximately 1.5 inches and is installed directly, from the factory provided reel, into the trench. Wooden or steel reels are supplied as required.
Reliable Connection
The MMO titanium wire is connected to the power cable in parallel via a heavy-duty crimp to ensure low resistance. The connection joint is then sealed in a splice kit with epoxy resin to prevent water intrusion.
Electrochemical Properties
| Testing Items | Property | Testing Standard | Testing Result |
| Cable Copper Conductor | Dimension | ASTM B – 263 | #6 AWG (Standard) |
| Connection Resistance | ASTM B – 193 | 3.08 × 10-3 Ohm.m | |
| MMO Wire | Dimension | ASTM B – 348 | PASS |
| Volume Resistivity | ASTM B – 193 | 9 – 11 mOhm.cm | |
| Coke Breeze Backfill | Fixed Carbon | ASTM D – 172 | 98.5% Min. |
| Resistivity | G.L.C.-C-12A, 10 bar (145psi) @23℃ (73℉) | 0.1 Ohm.cm | |
| Cable Joint | Resistivity | ASTM B – 193 | 1.0 mOhm Max. |
| Fabric Jacket | Weight | 80g/m² Min. | 80g/m² |
| Bursting Strength | ISO 3303 | 500N Min. | |
| Abrasion Resistance | ASTM D – 4157 | 100 Cycles to Failure | |
| Fluid Resistance | 6 months Immersion Test | PASS | |
| Chlorine Resistance | 6 months Immersion Test | PASS | |
| UV Resistance | ASTM G-53: 8 hours @60℃ (140℉) 4 hours @50℃ (122℉) | 55% Tear Strength Loss | |
| Minimum Bend Radius | / | 20” (500 mm) |
Parameters
Item No.
MMO Wire Diameter
Cable Conductor
Sock Diameter
Length
Current Output
Design Life
JA-MMO-FLA25
Φ0.04’’
(Φ1.0mm)
#6 AWG (HMWPE)
Φ1.5″ (Φ38mm)
500 / 1000 / 1500 ft.
(152 / 305 / 457 m)
25 mA/ft.
(82 mA/m)
25 yrs.
JA-MMO-FLA100
Φ0.06" (Φ1.5 mm)
#6 AWG (HMWPE)
Φ1.5″ (Φ38mm)
500 / 1000 / 1500 ft.
(152 / 305 / 457 m)
100 mA/ft. (328 mA/m)
25 yrs.
JA-MMO-FLA300
Φ0.12" (Φ3.0mm)
#6 AWG (HMWPE)
Φ1.5″ (Φ38mm)
500 / 1000 / 1500 ft.
(152 / 305 / 457 m)
300 mA/ft. (984 mA/m)
25 yrs.
JA-MMO-FLA400
Φ0.12" (Φ3.0mm)
#6 AWG (HMWPE)
Φ1.5″ (Φ38mm)
500 / 1000 / 1500 ft.
(152 / 305 / 457 m)
400 mA/ft. (1312 mA/m)
25 yrs.
Remarks: Customized lengths and current output variations are available at request.
Testing Details
We employ ISO 9001:2015 quality management system and rigorous internal testing standards to ensure the optimum lifespan and performance of our anodes. Each anode is labelled with a unique serial number for quality tracking.
Packaging Information
| Anode Length (per reel) | Reel Dimensions (Dia. x D) | Weight | Reel Qty | ||
| N.W. | G.W. | 20ft. Container | 40ft. Container | ||
| 500ft. (152m) | Φ36″ × 32″ (Φ914×812 mm) | 473 lbs (215 kg) | 540 lbs (245 kg) | 24 | 48 |
| 1000 ft. (305 m) | Φ42″ × 40″ (Φ1067×1016 mm) | 947 lbs (430 kg) | 1036 lbs (470 kg) | / | / |
| 1500 ft. (457 m) | Φ46″ × 41″ (Φ1168×1041 mm) | 1421 lbs (645 kg) | 1543 lbs (700 kg) | / | / |
Remarks: Custom packing is available upon request.
We have strict packing protocols to guarantee safe delivery of our products. Clear shipping marks and documentation make delivery acceptance straightforward and simple.
Shipping Documents:
- Proforma invoice
- Packing list
- Testing reports (Chemical Composition, Electrochemical Properties Test, Certificate of Compliance)
- Certificate of origin (upon request)
