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Innovation project

Titanium anode grounding electrodes

With a manganese dioxide coating. AZT, AZTU, TU 3435-001-78220516-2016.

Anode grounding electrodes provide cathodic corrosion protection for gas and oil trunk pipelines, above-ground and buried tanks for petroleum products, gas and water, buried cables, pile structures, wells, casing strings, power-line working earths and other metalwork in contact with soil and water. 

How these differ

High-technology cylindrical electrodes developed by Sura LTD specialists.

×20

Higher maximum current load - up to 100 A

×15

Lower anode weight - 0,27-0,73 kg/pc

0,01

Anode dissolution rate, max g/A·year

30+

Service life, years

×4,5

Lower price than competing products of comparable specification

Smaller dimensions and less installation work, thanks to the lighter anode assembly

Where they make most sense

Compared with competing grades, titanium anodes with a manganese dioxide coating are most cost-effective in deep-well installations and for protecting poorly insulated pipelines, where high currents are needed to hold the potential at the cathodic station. This is especially so in aggressive soils and at great depths - 200 m and more. 

Sura LTD

Anode assembly for a 300 m well, AZT38×500 anodes, 300 pcs

Assembly weight
~90 kg
Price
~16 900 $

Competitors

Comparable assembly of deep-well anodes, ~200 pcs

Assembly weight
~1 600 kg
Price
~76 700 $

Excluding assembly costs and current-carrying cables, and the weight of the ВПП 1×10 central cable, but including the connection leads. Installation costs for titanium anode electrodes are substantially lower: every contact joint is made under factory conditions. 

Cylindrical anode electrodes

Indicative price list, in force since 1 July 2016.

Table 1. АЗТ and АЗТУ cylindrical anode electrodes
Diameter, mm Length, mm Anode weight, kg/pc АЗТ, USD/pc АЗТУ, USD/pc
385000,2785105
455000,32105125
515000,36140170
605000,42175210
765000,55210250
895000,65230280
1025000,73265320

What the assembly price includes

The price is the sum of the electrodes in the electrical circuit and covers cable and wiring products, components, the assembly work, packaging and delivery free to the consignee's warehouse. 

Standard configuration

  • Anodes (АЗТ, АЗТУ) in the agreed size and quantity, per the customer's specification and the site's cathodic-protection design.
  • ВПП 1×2,5 connecting cable for the electrodes and ВПП 1×6 trunk cable; lengths per the specification.
  • A perforated plastic vent tube matching the length of the submerged section.
  • A plastic installation rope matching the length of the submerged section.
  • A compact contactor.

Prices may be adjusted by the manufacturer if the cost of process components rises substantially, and are also adjusted to the prevailing market. 

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