Introduction

Have you ever wondered where you can source quality zinc, aluminium and magnesium anodes?  If you have then look no further because BuySacrificialAnodes.com is a web directory that can help you.  We offer a guide to the very best manufacturers of Sacrificial zinc, aluminium and magnesium anodes within the UK.

This site is an extremely useful tool for purchasers and decision makers around the world because it provides them with accurate information collated from a team of experts whom have a wealth of experience from within Cathodic Protection.  We only list manufacturers, up to date foundries that are ISO 9001:2000 approved and have undergone electro chemical testing carried out by DNV.  We do not direct you the buyer to a middleman or the Anode Producer with suspect quality, this is not our remit and will therefore provide you with PEACE OF MIND before you make your decision to BUY.  

BuySacrificialAnodes.com is informative and provides technical information for the consumer whether they are a company buyer, or a boat owner, looking to purchase sacrificial sacrificial anodes. Don’t be misled; Manufacturers will deal direct with the public at a trade counter via the internet.  This will avoid Wholesales and Chandlery mark ups and guarantees the anode quality because you have full traceability to the source of your anode.  From a company perspective it is always better to send larger enquiries to the supplier via the enquiry forms.  They do get looked at and you will more than likely receive a substantial discount. 
 

Cathodic Protection Suppliers

ANODE DESIGN LIFE SHOULD NOT BE TAKEN FOR GRANTED

Cathodic protection company MCPS Limited advises that changes in the long-term testing procedures for sacrificial anodes mean that some anode material related CP design parameters currently in use could result in the reduced life of the CP system of marine and offshore assets. Shortfalls in design life of up to 20 percent are possible which could result in increased corrosion and the potential for catastrophic failure.

After discussions with classification society Det Norske Veritas (DNV), DNV has confirmed to MCPS Limited that the latest release of Cathodic Protection Design DNV RP B401 in 2005 contains significant changes to the testing procedures for sacrificial anodes. Previously, the 1993 version stated that ‘best case’ alloys could be used for testing electrochemical efficiency but this has been revised because if subsequent production does not meet this quality level, the protective capacity of these anodes could be affected.

The 2005 revision calls for Long Term testing using samples from a ‘worst case’ alloy that have been cut from an actual anode,(instead of a ‘best case’ alloy taken from samples in accordance with the 1993 revision), and the chemical composition of the test material should include the maximum limits of impurities and the minimum content of alloying elements.

“DNV has concurred with MCPS Limited’s contention that “testing based on the sampling procedures given in the 1993 and 2005 revisions is not directly comparable”. In reality the old test would show artificially high capacities if the samples were not taken from an actual large anode”, says Glenn English, Professional Member of ICME (Institute of Cast Metals Engineers) and Managing Director of MCPS Limited.

Many cathodic protection designers claim that because some anode manufacturer’s long-term test results show electrochemical efficiencies as high as 2,500 Ah/kg (carried out before 2005), they can be used as the basis for an extended design life. DNV advises against the use of design values approaching 2,500 Ah/kg since this does not reflect the true performance of anodes designed for a life of 20 years and more.

“When designers ask for anode capacities higher than what is possible in practice, a reduced design life of up to 20% can result with potentially catastrophic consequences,” says Mr English. “DNV recommends the use of an electrochemical efficiency value of 2,000 Ah/kg for design purposes, and would consider any test results of 2,200 Ah/kg or more as adequate to verify compliance with this design value.” MCPS Limited’s long-term test carried out 2007-8 achieved a result of 2,357 Ah/kg.

DNV has given MCPS Limited permission to show clients a copy of their letter confirming the above information.

Please contact us to discuss your cathodic protection needs.

MCPS Limited,                                                              About MCPS Limited:
102-2A, Throckley Way,                      MCPS Limited has over 10 years design and manufacturing
Middlefields Ind. Est.,                          experience providing cathodic protection and marine growth
South Shields,                                    prevention systems to the marine, offshore and civil marine
Tyne & Wear,                                     industries. The company’s core business is to produce the
NE34 0NU,                                         highest quality aluminium and zinc sacrificial anodes.
United Kingdom.                                 The company’s headquarters are located in the NE of
Tel: + 44 (0)191 456 0466                    England, and as well as having two foundries in the UK
Fax: + 44 (0) 191 454 1066                  producing anodes for European and African markets, they         
Web: http://www.mcpsltd.com             supply stocks to North and South American and have
Company Registered in England          manufacturing facilities in the Middle East supplying that
Registration No: 3725809                    region as well as the Far East.