Shandong CORRTECH Cathodic Protection Technology Company Company Logo Shandong CORRTECH Cathodic Protection Technology Company
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MMO Ribbon Anodes

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Shandong CORRTECH Cathodic Protection Technology Company
[China]

Address
No.1076, the north one road Dongying Shandong
Phone
86-546-8891333
Contact name
Judy

Quick Information

  • Brand Name: CORRTECH
  • Place of Origin: China

Description

Mixed Metal Oxide Anode

 The mixed metal oxide anode has an extremely low consumption rate, measured in terms of milligrams for ampere-year. Whether operating in soil, fresh water, and or sea water, mixed metal oxide coatings demonstrate very high chemical stability, even in environments with very low pH values.

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

  • Multi-anode conductor
  • Lightweight / durable
  • High current output
  • Patented crimp connections
  • Dimensionally stable

Benefits

  • Dramatically reduces cable costs
  • Reduced handling and installation costs
  • Lower cost per ampere
  • Guaranteed electrical contract and moisture seal integrity
  • Consistently low resistance anode

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:

â—†Anode size

â—†Number of anodes per string

â—†Center-to-center spacing between anodes along the cable

â—†Number of tails (1 or 2)

â—†Cable tail length (above the top anode)

â—†Total cable length (sum of lengths of anodes, spaces and tail)

â—†Current output

â—†Number of centralizers required and hole size

 

MMO Ribbon Anode

CORRTECH’s MMO ribbon anodes are designed for use on both newly constructed aboveground storage tanksï¼ÂŒand existing tanks utilizing double-bottom construction.

Unlike other impressed-current tank bottom anodesï¼ÂŒCORRTECH’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 contentsï¼ÂŒand 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

1.4kgï¼Âˆ3.1 lbsï¼Â‰

1.85

13mm â…¹ 76m

1.3

3.5mA/m

2.5 â…¹ 4.6 â…¹ 0.6

1.8kgï¼Âˆ4 lbsï¼Â‰

2.4

19mm â…¹ 76m

1.3

5.28mA/m

2.5 â…¹ 4.6 â…¹ 0.6

2.7kgï¼Âˆ4 lbsï¼Â‰

3.6

1220mm x76m

1.98

37.8mA/m

25 â…¹ 50 â…¹ 0.89

43kgï¼Âˆ95 lbsï¼Â‰

92.9

1220mmâ…¹76m

1.98

24.4mA/m

34 â…¹ 76 â…¹ 0.89

33kgï¼Âˆ95 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 materialï¼Âš1 grade titaniumï¼ÂŒ(ASTM B265)

Coefficient of heat expansionï¼Âš8.7×10-5/ok (0.0000048/in/in/ok)

Thermal conductivity at 20 ï¼Âš15.6 W/(m·K)(9.0BTU/hr/ ft2/oF/ ft2)  

Resistivityï¼Âš0.000056 ohm·cmï¼Âˆ0.000022 ohm·inï¼Â‰

Elastic coefficientï¼Âš105 GPa (14,900,000 PSI) Min

Tensile strengthï¼Âš240 MPa (35,000 PSI) Min

Yield strengthï¼Âš170 MPa (25,000 PSI) Min

Elongationï¼Âš24%ï¼ÂŒMin

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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