Anotec offers as well materials supply as complete cathodic protection systems and consulting for underground pipelines.  Using deep well anode strings one is able to protect a long distance pipeline or a grid of pipelines using one small location.  For deep well or shallow ground anode beds Anotec gives customers the choice between tubular MMO coated titanium anodes or silicon iron anodes.
For chloride containing or contaminated soils Kynar HMWPE cables are the first choice.  

Anotec’s transformer-rectifiers have following features : a standard microcontroller for easy set up and data reading,  overvoltage protection on input, output and measuring, kWh reading, ON-OFF timer, automatic potential regulation and circuit breaker.  Capacities range from 5 A – 48 VDC up to 200 A – 50 VDC or even higher capacities on request.

The Scotty communication system is available for data transfer from the transformer-rectifier to the user’s desk.  All data may be communicated by an ethernet connection.  The read out takes place using the web platform or an e-mail server.

Other features available for pipeline cathodic protection systems:

• polarisation cells (PCR’s)
• test posts
• spark gaps
• reference electrodes with built-in coupons
• coupons for OFF readings
• magnesium anodes
• magnesium wire

For offshore cathodic protection system as well galvanic anodes, mostly aluminium-indium or zinc anodes, may be an option but also impressed current cathodic protection systems.

User’s of galvanic anodes may look at the data sheets available here but also check Anotec’s engineering department for impressed current CP systems which may be a valuable option.

Data sheets for offshore cathodic protection:

• Al-In-Zn anodes
• Zinc anodes
• Ag/AgCl reference electrodes
• Kynar HMWPE cable
• Coupons

By galvanic anodes

Cathodic protection in harbours is mostly executed by means of galvanic anodes.  In most cases zinc or aluminium-indium anodes are used.  Depending on the salt degree of the water, sheet piling and jetties may be protected by magnesium anodes also.
Nowadays Al-In-Zn anodes are the most common used anode type.  Depending on the metal surface, the applied coating and the life time of the cathodic protection system Anotec’s engineers calculate the most appropriate anode metal, anode weight and dimensions.  Harbour anodes may be welded directly to sheet piling or round piles but the use of brackets make it easier to replace the anodes when they are used.  It also implicates a far lower installation cost due to a shorter diving time.

For your new project please indicate following characteristics :

• Type of installation : round piles diameter - sheet piling type
• Coating : no coating - number of layers (thickness)
• Surface : square meters immersed and square meters in soil
• Type of water : sea water - brackish - river water
• Use of brackets or welded

By impressed current cathodic protection (ICCP)

Impressed current systems have some advantages towards galvanic anode systems in harbour structures :

• Low total cost of ownership
• Communication of cathodic protection data
• Less diving costs (less anodes)
• May be used with uncoated structures due to a higher driving force
• Use in ATEX areas is allowed using polarisation cells.

It’s always worthwhile to engineer both methods for your project.  
Please contact our sales and engineering staff and they will be help you to define the most appropriate system.