MMO Wire Anode

Mixed Metal Oxide wire anodes consist of a pure titanium wire substrate (ASTM B348 Grade I/II) which has a high tensile strength coated by an electrocatalytic film of noble metal oxide. Jennings Anodes has been manufacturing MMO wire anodes under stringent quality control procedures ensuring our product meets & exceeds the highest of industry standards. Delivering a superior, reliable product to our clients for many years with a production capacity of 1,000,000 meters per year.

Application

Anode Model

MMO Wire Anode

Substrate

ASTM B348 Grade I/II

Solid Titanium wire with Φ1.0mm, Φ1.5mm, Φ3.0mm

MMO Coating

Type 1#  Ir-Ta Mixed Metal Oxide Catalyst (Soil / Fresh Water)

Type 2#  Ir-Ru Mixed Metal Oxide Catalyst (Brackish Water / Seawater)


MMO Anodes have been used for electrochemical applications since 1950 (Dr. Henry Beer).The Mixed Metal Oxide (MMO) coating film activates the titanium allowing the combined product to act as a very effective Impressed Current Cathodic Protection (ICCP) anode in a variety of applications. MMO Wire has excellent performance characteristics with very little wear and dissolution of the metal oxide coating. A low consumption rate of the electrocatalytic layer operating at recommended current densities for CP applications enables a product lifetime of over 20 years.

The design life of the anode depends on the operating current in various applications from soil to seawater. The anodes are manufactured in 3 diameters: 1.0mm, 1.5 mm and 3.0 mm. Due to the extremely low consumption rate of the coating (measured in terms of milligrams per year) at different current output, the projected life of the anodes varies from 15 to 50 years in underground, brackish water, seawater and concrete environments. 

Solid titanium wire, conforming to ASTM B348 Grade I/II. The noble metal film of the anode used depends on the operating environment varying from soil and fresh water to seawater. In soil or fresh water where there is either no chloride ions or low chloride ions present, Type 1# MMO Coating is recommended, Iridium-Tantalum (Ir-Ta) for brackish water and seawater Type 2# Coating is recommended Iridium-Ruthenium (Ir-Ru).



MMO Wire Diameter

Application

Current Rating 

for 20 yrs.

Current Ratin

for 30 yrs.

Current Rating 

for 50 yrs.

JA - MMO - SW1.0

(Dia. 1.0mm)

Soil 

49mA/ft. (160mA/m)

33mA/ft. (107mA/m)

20mA/ft. (64mA/m)

Freshwater

97mA/ft. (320mA/m)

65mA/ft. (213mA/m)

39mA/ft. (128mA/m)

Calcined Coke Breeze

97mA/ft. (320mA/m)

65mA/ft. (213mA/m)

39mA/ft. (128mA/m)

Brackish Water

292mA/ft. (960mA/m)

195mA/ft. (640mA/m)

117mA/ft. (384mA/m)

Seawater

584mA/ft. (1920mA/m)

389mA/ft. (1280mA/m)

234 mA/ft. (768mA/m)

JA - MMO - SW1.5

(Dia. 1.5mm)

Soil 

74mA/ft. (240mA/m)

49mA/ft. (160mA/m)

29mA/ft. (96mA/m)

Freshwater

146mA/ft. (480mA/m)

97mA/ft. (320mA/m)

58 mA/ft. (192mA/m)

Calcined Coke Breeze

146mA/ft. (480mA/m)

97mA/ft. (320mA/m)

58mA/ft. (192mA/m)

Brackish Water

438mA/ft. (1440mA/m)

292mA/ft. (960mA/m)

175mA/ft. (576mA/m)

Seawater

876mA/ft. (2880mA/m)

584mA/ft. (1920mA/m)

350mA/ft. (1152mA/m)

JA - MMO - SW3.0

(Dia. 3.0mm)

Soil 

147mA/ft. (480mA/m)

98mA/ft. (320mA/m)

59mA/ft. (192mA/m)

Freshwater

291mA/ft. (960mA/m)

194mA/ft. (640mA/m)

116 mA/ft. (384mA/m)

Calcined Coke Breeze

291mA/ft. (960mA/m)

194mA/ft. (640.mA/m)

116mA/ft. (384mA/m)

Brackish Water

876mA/ft. (2880mA/m)

584mA/ft. (1920mA/m)

350mA/ft. (1152mA/m)

Seawater

1752mA/ft. (5760mA/m)

1168mA/ft. (3840mA/m)

701mA/ft. (2304mA/m)


Anode Model

Wire Diameter

JA - MMO - SuperWire1.0

1.0mm (0.039")

JA - MMO - SuperWire1.5

1.5mm (0.062")

JA - MMO - SuperWire3.0

3.0mm (0.125")



MMO wire could be either pre-packaged as Wire Canister Anode or Linear Sock Anode.

Jennings Anodes manufacturing process ensures the ultimate performance of the anode and the life of the anode. Our internal testing standards and the 3rd party tests are performed to guarantee high quality of the products. Every anode is stamped with a unique serial number for quality tracking and after-sale service.


Testing

Chemical Composition

Anode Performance

Physical Appearance

Standard

ISO 9001 Quality Management System and Foundry Internal Quality Standard

ASTM E120

NACE TM0108; 

ASTM D3359

Foundry ITP

Testing Item

Chemical Analysis of Substrate

Structure and Thickness of the coating; Anode Current Density, Anode Life


Permissible Variations

Anode Finish and Appearance

Anode Length and Weight 

Cable Specification and Length

Anode Header etc.

Equipment & Devices

Third Party / Sub-contractor

JCM-6000 Plus Scanning Electron Microscope; DWW-K-100 Galvanostat, VCC101A Multimeter, Calomel Reference Electrode

Visual Inspection, Microscopes, 

Calipers, Tap Measure etc.


JCM-6000 Plus Scanning Electron Microscope


        


Anode Model

Packing Details

Unit of Measurement

Coil Length

Coil Dimension

Net Weight

Gross Weight

JA - MMO - SW1.0

FOOT

500ft. 

(152m)

Φ21.0" × 2"

(Φ530 × 50mm)

1.17lbs (0.35kg)

1.76lbs (0.80kg)

JA - MMO - SW1.5

Φ21.0" × 2.35"

(Φ530 × 60mm)

2.75lbs (1.25kg)

3.40lbs (1.55kg)

JA - MMO - SW3.0

Φ21.0" × 3.15"

(Φ530 × 80mm)

10.80lbs (4.90kg)

11.50lbs (5.20kg)


Shipping Documents


    • Invoice, Packing List, Full Chemical, Physical & Performance Test Reports.
    • 3rd Party Independent test reports can also be provided at cost. 


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