Piggyback Wire Anode
※ MMO Piggyback Wire anode is an ideal CP product to replace the conventional anodes used to protect tank bottom, underground vessel, pipeline.
1. INTRODUCTION
1) Basic structural components:
Internal cables, MMO wires, pre-filled calcined petroleum coke powders, fabric coating layers and long fiber braid.
2) Internal cables:
No-stop inner cables provide stable current for the anode; and 13 strands of copper wires are hinged to ensure the flexibility.
3) MMO wires:
As an anode body, it is a mixture of iridium/tantalum oxide coated on the surface of titanium wires.
4) Calcined petroleum coke powders:
· The contact resistance between the auxiliary anode and soil is reduced;
· Electrochemical reaction is performed between the carbon powder around the auxiliary anode (conductive polymer or MMO/Ti wire) and soil electrolyte, so as to prevent the protected matters from being subjected to electrochemical corrosion and prolong the service life of the auxiliary anode
5) Fabric Jecket:
·The carbon powder shall be coated around the anode in a circular shape and with certain
filling density, so as to make the carbon powder not moved, loosened and dropped off in the
process of storage and transportation, construction and use to affect the normal use and
service life of the flexible anode.
·It shall have excellent wear resistance, puncturing resistance and mechanical strength;
It shall have corrosion resistance, which is very important to apply under water.
6) Protective braid:
·During construction and erection, the textile coating shall be prevented from wear
flexible anode, so as to further restrain and fix the carbon powder and the fabric coa
It shall have excellent wear resistance and mechanical strength; ·It shall have corrosion resistance, which is very important to apply under water.
2. GENERAL SPECIFICATION
MMO Wire Diameter | 1.0mm | 1.5mm | 3.0mm |
Titanium Substrate | Ti ASTM B863 Grade 1 | ||
Mixed Metal Oxide | IrO2/Ta2O5 | ||
Current output | 52mA/m | 78mA/m | 156mA/m |
Working life | 20 years, 30 years, 50 years | ||
Backfill | Calcium Petroleum Coke | ||
Sock material | Porous non-woven fabrics | ||
Sock dimension | 38 mm Diameter | ||
Length per reel | 150 Meters ( Customized length at request) | ||
Customized roll length and output is available at customers' request | |||
3. PIGGYBACK WIRE ANODE LAYOUT
4. APPLICATION
1) Cathode protection of buried steel long-distance pipelines (oil, gas and water);
2) Cathode protection of large-scaled steel storage tank floor;
3) Cathode protection of dense pipeline regions, such as stations, power plants and chemical plants.
5. WORKSHOP
6. LABORATARY
