MMO Ribbon Anodes
- Company Name:Shandong CORRTECH Cathodic Protection Technology Company
- Membership:Free Member
- Member Since:2010. 06.01
- Country/Region:China
- City:Shandong
- Contact:Judy
- Related Keywords:impressed current anode, cathodic protection
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Shandong CORRTECH Cathodic Protection Technology Company
[China]
CORRTECH supplies high performance MMO anodes suitable for soil, sea mud, seawater and fresh water environment. In seawater, the suggested working current density is 600 A/m2, and in fresh water is 100A/m.
Products Forms of MMO Anode
l MMO Solid Rod Anode
l MMO Tubular Anode
l MMO Ribbon Anode
l MMO Mesh Anode
MMO Solid Rod Anode
CORRTECH Solid 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.
We produce Solid Rod Anodes ASTM standard B348 grade 1 or grade 2.
General Specification
Diameter (mm) |
Length (mm) |
Output Current(A/m) |
Expected Life(a) |
3.2 |
1000 |
1 |
20 |
6.4 |
1000 |
2 |
20 |
12.7 |
1000 |
4 |
20 |
19 |
1000 |
6 |
20 |
25 |
1000 |
7.8 |
20 |
Applications l Process Vessels l Water Condenser Boxes l Heat Exchangers l Water Intake Structures
|
Features l High Current Output l Low Coating Wear Rate l Five Year Product Warranty l Also available as Rod Anode Assemblies |
Advantages
â Lower Cost Per Ampere Year
â Constant Electrical Resistance
â No Hassles
MMO Tubular Anode
CORRTECH Tubular Anodes are titanium tubules 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.
The mixed metal oxide anode has an extremely low consumption rate, measured in terms of milligrams per ampere-year. As a result of this low consumption rate, the tubular dimensions remain nearly constant during the life of the anode - providing a consistently low resistance anode.
Whether operating in soil, freshwater, mud, or seawater, CORRTECH mixed metal oxide coatings demonstrate very high chemical stability -even in environments with very low pH values. Unlike other impressed current anodes, the CORRTECH coatings are not affected by the generation of chlorine.
We produce tubular anodes according to ASTM standard B338.
Features
|
Benefits
|
General specification:
Outer diameter(mm) |
Length(mm) |
Output current(A/m) |
Expected life (a) |
19 |
1200 |
7.2 |
20 |
25 |
500 |
4 |
20 |
25 |
1000 |
8 |
20 |
25 |
1200 |
10 |
20 |
25 |
1500 |
12 |
20 |
32 |
1200 |
12 |
20 |
The dimension and parameter can be changed according to customer's request.
Link-type anode
The tubular anode can be supplied in string to be used in deep well to protect the underground pipe or other steel structures.
Ordering information
When ordering tubular anodes, please specify the followings:
âÂÂAnode size
âÂÂNumber of anodes per string
âÂÂCenter-to-center spacing between anodes along the cable
âÂÂNumber of tails (1 or 2)
âÂÂCable tail length (above the top anode)
âÂÂTotal cable length (sum of lengths of anodes, spaces and tail)
âÂÂCurrent output
âÂÂNumber of centralizers required and hole size
MMO Ribbon Anode
CORRTECH’s MMO ribbon anodes are designed for use on both newly constructed aboveground storage tanksï¼Âand existing tanks utilizing double-bottom construction.
Unlike other impressed-current tank bottom anodesï¼ÂCORRTECH’s ribbon anodes does not require coke breeze. The anodes are composed of a titanium ribbon substrate coated with a mixed metal oxide catalyst and allows for a maximum current density of 17 mA/m. They can be used in sands with various levels of moisture and salt contentsï¼Âand can be designed to provide effective protection for 50 years and more. Titanium to ASTM 265, coated with lrO2/Ta2O5.
General Specification
Width(mm) |
Thickness(mm) |
Length(m) |
Current output(mA/m) |
Expected life(a) |
6.35 |
0.635 |
155 |
17 |
50 |
6.35 |
0.635 |
155 |
34 |
50 |
12.7 |
0.635 |
155 |
68 |
50 |
The dimension and parameter can be changed according to customer's request.
Application
Fine sand environments
Working environment evolution of O2, Cl2 or a combination of both
Usually used for above ground storage tank bottoms and reinforced concrete structures.
MMO Mesh Anode
There are two kinds of MMO mesh anodes. One is designed especially for Cathodic protection systems in reinforced concrete structures. Another is designed for underground steel structures. The anodes will be packed in canister filled with calcined petroleum coke backfill. The substrate is expanded titanium grid. And the catalyst is Mixed Metal Oxide. Titanium expanded grid substrate coated with lrO2/Ta2O5 and meet ASTM standard B265 grade 1 or grade 2.
Specification
Size |
Thickness (mm) |
current rating |
Mesh dimensions (mm) |
Weight/roll |
Surface area (m2) |
10mm â ¹ 76m |
1.3 |
2.8mA/m |
2.5 â ¹ 4.6 â ¹ 0.6 |
1.4kgï¼Â3.1 lbsï¼Â |
1.85 |
13mm â ¹ 76m |
1.3 |
3.5mA/m |
2.5 â ¹ 4.6 â ¹ 0.6 |
1.8kgï¼Â4 lbsï¼Â |
2.4 |
19mm â ¹ 76m |
1.3 |
5.28mA/m |
2.5 â ¹ 4.6 â ¹ 0.6 |
2.7kgï¼Â4 lbsï¼Â |
3.6 |
1220mm x76m |
1.98 |
37.8mA/m |
25 â ¹ 50 â ¹ 0.89 |
43kgï¼Â95 lbsï¼Â |
92.9 |
1220mmâ ¹76m |
1.98 |
24.4mA/m |
34 â ¹ 76 â ¹ 0.89 |
33kgï¼Â95 lbsï¼Â |
92.9 |
The dimension and parameter can be changed according to customers' request.
Parameter
The max working current (FHWA limits):110mA/m2(10mA/ft2)
The max working current (Short-term limit):220mA/m2(20mA/ft2)
Composite materialï¼Â1 grade titaniumï¼Â(ASTM B265)
Coefficient of heat expansionï¼Â8.7×10-5/ok (0.0000048/in/in/ok)
Thermal conductivity at 20 ï¼Â15.6 W/(m·K)(9.0BTU/hr/ ft2/oF/ ft2)
Resistivityï¼Â0.000056 ohm·cmï¼Â0.000022 ohm·inï¼Â
Elastic coefficientï¼Â105 GPa (14,900,000 PSI) Min
Tensile strengthï¼Â240 MPa (35,000 PSI) Min
Yield strengthï¼Â170 MPa (25,000 PSI) Min
Elongationï¼Â24%ï¼ÂMin
Expected life (a):75
Ordering Information
Please be noted: When you send us inquiry, please provide us:
a) The type and size of the anodes
b) Designed output current
c) The date of the actuating medium
Our engineers will send you useful suggestion, or select suitable anodes for you, according to the working environment.
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