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 **0 A/m2, and in fresh water is **0A/m. Products Forms of MMO Anode ï�¬ MMO Solid Rod Anode ï�¬ MMO Tubular Anode ï�¬ MMO Ribbon Anode ï�¬ 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 B**8 grade 1 or grade 2. General Specification Diameter (mm) Length (mm) Output Current(A/m) Expected Life(a) 3.2 ***0 1 *0 6.4 ***0 2 *0 *2.7 ***0 4 *0 *9 ***0 6 *0 *5 ***0 7.8 *0 Applications ï�¬ Process Vessels ï�¬ Water Condenser Boxes ï�¬ Heat Exchangers ï�¬ Water Intake Structures Features ï�¬ High Current Output ï�¬ Low Coating Wear Rate ï�¬ Five Year Product Warranty ï�¬ 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 B**8. Features â�¢ Multi-anode conductor â�¢ Lightweight / durable â�¢ High current output â�¢ Patented crimp connections â�¢ Dimensionally stable Benefits â�¢ Dramatically reduces cable costs â�¢ Reduced handling and installation costs â�¢ Lower cost per ampere â�¢ Guaranteed electrical contract and moisture seal integrity â�¢ Consistently low resistance anode General specification: Outer diameter(mm) Length(mm) Output current(A/m) Expected life (a) *9 ***0 7.2 *0 *5 **0 4 *0 *5 ***0 8 *0 *5 ***0 *0 *0 *5 ***0 *2 *0 *2 ***0 *2 *0 The dimension and parameter can be changed according to customer&#**9;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 CORRTECHâ��s MMO ribbon anodes are designed for use on both newly constructed aboveground storage tanksï&frac*4;�and existing tanks utilizing double-bottom construction. Unlike other impressed-current tank bottom anodesï&frac*4;�CORRTECHâ��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 *7 mA/m. They can be used in sands with various levels of moisture and salt contentsï&frac*4;�and can be designed to provide effective protection for *0 years and more. Titanium to ASTM **5, coated with lrO2/Ta2O5. General Specification Width(mm) Thickness(mm) Length(m) Current output(mA/m) Expected life(a) 6.*5 0.**5 **5 *7 *0 6.*5 0.**5 **5 *4 *0 *2.7 0.**5 **5 *8 *0 The dimension and parameter can be changed according to customer&#**9;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 B**5 grade 1 or grade 2. Specification Size Thickness (mm) current rating Mesh dimensions (mm) Weight/roll Surface area (m2) *0mm â�¹ *6m 1.3 2.8mA/m 2.5 â�¹ 4.6 â�¹ 0.6 1.4kgï&frac*4;�3.1 lbsï&frac*4;� 1.*5 *3mm â�¹ *6m 1.3 3.5mA/m 2.5 â�¹ 4.6 â�¹ 0.6 1.8kgï&frac*4;�4 lbsï&frac*4;� 2.4 *9mm â�¹ *6m 1.3 5.*8mA/m 2.5 â�¹ 4.6 â�¹ 0.6 2.7kgï&frac*4;�4 lbsï&frac*4;� 3.6 ***0mm x*6m 1.*8 *7.8mA/m *5 â�¹ *0 â�¹ 0.*9 *3kgï&frac*4;�*5 lbsï&frac*4;� *2.9 ***0mmâ�¹*6m 1.*8 *4.4mA/m *4 â�¹ *6 â�¹ 0.*9 *3kgï&frac*4;�*5 lbsï&frac*4;� *2.9 The dimension and parameter can be changed according to customers&#**9; request. Parameter The max working current (FHWA limits):**0mA/m2(*0mA/ft2) The max working current (Short-term limit):**0mA/m2(*0mA/ft2) Composite materialï&frac*4;�1 grade titaniumï&frac*4;�(ASTM B**5) Coefficient of heat expansionï&frac*4;�8.7Ã�***5/ok (0.******8/in/in/ok) Thermal conductivity at *0 ï&frac*4;�*5.6 W/(mâ�¢K)(9.0BTU/hr/ ft2/oF/ ft2) Resistivityï&frac*4;�0.*****6 ohmâ�¢cmï&frac*4;�0.*****2 ohmâ�¢inï&frac*4;� Elastic coefficientï&frac*4;�**5 GPa (*4, **0, **0 PSI) Min Tensile strengthï&frac*4;�**0 MPa (*5, **0 PSI) Min Yield strengthï&frac*4;�**0 MPa (*5, **0 PSI) Min Elongationï&frac*4;�*4%ï&frac*4;�Min Expected life (a):*5 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.