cuprion

CUPRION ANTI FOULING

‘CUPRION’ ANTI FOULING DATASHEET 5.0

REVISION 1

Venture Way, Grantham, Lincs NG31 7XS UK. Tel: +44 (0)1476 590666 Fax: +44 (0)1476 570605Email: [email protected] Website: www.cathodic.co.ukRegistered Office: Minalloy House, Regent Street, Sheffield S1 3NJ, UK VAT No. 116 8408 71, Reg’d in England No. 478098

DATASHEET5.0

Cathodic Protection Co. Limited have manufactured and supplied the electrolytic 'Cuprion'™ anti-fouling system since theearly 1970's to protect pumped sea water systems against marine growth. Today, the system is used by many of themajor oil and gas offshore operators to protect vertical sea water and fire water pumps on platforms. Otherapplications include jetty fire pumps and sea water intake systems.

Benefits of the 'Cuprion'™ Ant-Fouling System Include:-

• Reduction in power requirements over alternative methods for fouling control.

• Low maintenance system

• Low power requirement

• No handling or storage of chemicals required

• Environmentally acceptable

• 35 years of proven experience

System Description

The method is based upon the use of impressed current oncopper and aluminium anodes which are themselves containedwithin an insulated steel frame which forms the cathode. Theanode/cathode electrode unit is suspended from the pumpmotor base within the confines of the caisson so that all thewater entering the pump must pass the electrode unit.

The ‘Cuprion’ system consists of two parts – the electrode unitand control panel. The electrode contains a number of copperand aluminum anode bars held together in a steel frame toform the cathode. The actual number and size of the anodes isconfigured to suit each installation and available space formounting the electrode unit. The anodes are connected to theconstant current rectifier located within a safe area.

The control panel is designed to regulate the anode currents inboth ‘pump on’ and ‘pump off’ condition, so that during thepump standby condition an atmosphere of copper ions in thelocal environment will maintain the pump free from fouling.This feature is particularly useful for installation on fire pumpsthat are generally operated for a short period each week.

Dosage levels of copper ions are extremely small and measuredin micrograms per litre of seawater. Therefore, relatively smallquantities of copper are required to provide protectiondependent upon the flow rate and life required.

Datasheet 5.0 7/8/08 09:59



REVISION 1


DATASHEET5.0

Deck Mounted Option

For some applications traditional method of pump / electrode configuration may not be suitable. As an alternative weoffer the deck mounted system.

With the deck mounted 'Cuprion'™ anti-fouling system the anodes are located inside an tank through which sea water isfed from the main sea water system. As the water passes through the tank the carefully controlled anode currentsensure that the correct dosing level is applied for the particular application. The treated water is then piped downdirectly to the pump suction. In this way several pumps can be protected against fouling from a single treatmentsource. The Deck Mounted 'Cuprion'™ System is ideally suited for retro-fitting where the pump / electrode configurationmay not be possible.

Application For Submerged Pumps

With extensive experience in the design of ‘Cuprion’TM systems, CPCL provides anti fouling equipment for a wide variety of applications including :-

• Offshore sea water lift pumps

• Offshore fire water lift pumps

• Jockey Pumps

• Jetty Fire Pumps

• Industrial sea water cooling systems

Datasheet 5.0 7/8/08 09:59

CLEARLY THE BEST

PROTECTION FOR YOUR

INVESTMENT

CUPRIONCUPRIONCUPRIONCUPRIONCUPRIONCUPRIONCUPRIONCUPRIONTMTMTMTM ELECTROLYTICELECTROLYTICELECTROLYTICELECTROLYTIC

ANTI FOULINGANTI FOULINGANTI FOULINGANTI FOULING

AN OVERVIEWAN OVERVIEWAN OVERVIEWAN OVERVIEW

1

CUPRIONCUPRIONCUPRIONCUPRIONTMTMTMTM ELECTROLYTIC ANTI FOULINGELECTROLYTIC ANTI FOULINGELECTROLYTIC ANTI FOULINGELECTROLYTIC ANTI FOULING

THE PROBLEMTHE PROBLEMTHE PROBLEMTHE PROBLEM Hard fouling is the generic name given to the accumulation of the hydroid classification of

invertebrate. Examples include Barnacles, Limpets, Mussels and Tubeworms. A typical example

can be seen in the photograph which shows mussel colonisation of a marine pump.

Mussels in particular are prolific breeders which attach themselves to almost any submerged

surface (rocks, boats, piers, pipes and to each other) by secreting horny sticky threads. Egg

fertilisation and production occurs within hours of the water temperature rising above 12°C. After

hatching and as long as the water temperature stays between 14°C and 24°C the free swimming

larvae will appear in plankton and be dispersed by water currents. Spores can settle out if the

circulation velocities are low enough – under 1-1.5m/sec. Once the shell grows too heavy it will

attach itself to a suitable substrate by means of its threads. By the end of the first growing season

the female mussel can produce 30,000 to 40,000 eggs. Population growth is therefore rapid and

will spread quickly through a seawater system where the flow of water ensures a good food supply.

Marine Growth is therefore a problem in most oceans of the world, including colder environments

such as the North Sea. The consequences are of particular concern for submerged pumps and

water intakes. Initially resulting in reduced flows and pressure, untreated marine growth can lead to

complete blockage of pumps and pipe work. Fire pumps are particularly at risk due to their

infrequent operation

Picture shows typical example of hard foulingPicture shows typical example of hard foulingPicture shows typical example of hard foulingPicture shows typical example of hard fouling

2


THE SOLUTIONTHE SOLUTIONTHE SOLUTIONTHE SOLUTION

The effectiveness of copper as a deterrent for marine growth has been well known for centuries.

Hulls of wooden sailing ships were clad in copper sheeting to maintain them free from growth.

Copper is a naturally occurring element in sea water and one which is necessary for marine life.

However by locally increasing the concentration of copper, an environment is created which

discourages marine growth. This environment is not toxic to marine life, but does prevent

settlement of the larvae and colonisation.

The Cuprion™ system uses an automatic control system to produce the copper ions from a solid

anode. Passing a low voltage DC current between the copper ‘anode’ and steel ‘cathode’ results in

the release of copper ions from the anode. By regulating the current, the level of copper dosing is

tailored accurately to each application.

A typical Cuprion™ installation for a submerged sea water pump is shown below

3


The Cuprion™ electrode is mounted on the pump intake using a custom designed attachment unit.

Water being drawn into the pump passes over the Cuprion™ unit and ‘collects’ copper ions which

are being produced by the anode assembly. The treated water is then carried through the pump

and pipe work, preventing marine growth throughout the system.

The system automatically adjusts the output of copper ions to suit pump running conditions so that

the pump is constantly protected, even in standby mode.

Electrode life is usually matched to pump overhaul intervals, typically 5 years.

Typical examples of Typical examples of Typical examples of Typical examples of pump mounted pump mounted pump mounted pump mounted CuprionCuprionCuprionCuprionTMTMTMTM Anti Fouling EAnti Fouling EAnti Fouling EAnti Fouling Electrodeslectrodeslectrodeslectrodes

To assist with the distribution of the copper ions, the Cuprion™ system also features aluminium

anodes. A second electrical circuit is used to produce aluminium ions and these react with the sea

water to form hydrated aluminium oxide. This in turn combines with the copper ions to produce a

‘floc’ of aluminium hydroxide. The floc maintains the copper ions in suspension so that they are

carried with the water as it is pumped through the system. Data from Cuprion™ installations show

that this technology allows copper ions to be carried over many kilometres of pipe work, so

protecting it from fouling.

4


PUMP MOUNTED OR TANK SYSTEM?PUMP MOUNTED OR TANK SYSTEM?PUMP MOUNTED OR TANK SYSTEM?PUMP MOUNTED OR TANK SYSTEM?

Pump mounted Cuprion™ electrodes can be provided to suit the majority of marine pump

configurations. An alternative system has been developed for customers to suit multiple pump

applications, or where there is insufficient space to fit a conventional electrode to the pump intake.

The Cuprion™ tank system has electrodes which are contained in a remote tank through which a

constant flow of water is passed, and then fed to the pump intake. The water becomes treated with

copper/aluminium ions in the tank, and the discharge of this treated water gives anti fouling

protection to the pump(s).

A typical tank system is shown below:

The CuprionTM tank system was developed with the maintenance engineer in mind and contains

design features to ensure reliability and a low maintenance burden:

• Constant water flow through tank

• No motorised control valves

• System output is electronically regulated by varying anode currents

• No moving parts for single pump system

• Simple solenoid valves for flow control in multiple pump applications

• Simple anode replacement (~30 mins)

• Self contained package – all equipment on skid

5


ALTERNATIVE METHODS OF MARINE GROWTH CONTROLALTERNATIVE METHODS OF MARINE GROWTH CONTROLALTERNATIVE METHODS OF MARINE GROWTH CONTROLALTERNATIVE METHODS OF MARINE GROWTH CONTROL

Chlorine based systems are the traditional method used for marine growth control. Chlorine is a

highly effective anti fouling agent, but has high toxicity and is corrosive to marine equipment when

dosing is not accurately controlled. Manual dosing with chlorine based products is notoriously

unreliable due to the human factors involved, and storage and shipping of chemicals are

problematic and costly. These issues mean that overdosing and corrosion problems are

commonplace. Periodic ‘shock dosing’ with chlorine may also result in the release of marine growth

that has accumulated between treatments, causing downstream filters and equipment to become

blocked or contaminated.

More sophisticated chlorine based systems generate chlorine (hyperchlorite) from sea water. This

equipment is contained in a ‘package’ or ‘skid’ which is mounted on the deck of the platform. These

systems feature high power consumption and a high level of mechanical complexity, with pumps,

motorised valves, mixers etc. It eliminates the hazards of transporting and storing chemicals. These

systems generate the anti fouling agent and then mix it with water which is then piped to the pump

intake.

CuprionTM has a number of advantages over chlorine based systems:

• CuprionTM cannot cause corrosion.

• High reliability

• No chemicals to handle or store

• Automatic operation to suit pump duty

• 24/7 continuous protection

• No routine maintenance

• Low power consumption (~1kW)

Cathodic Protection Co. Limited

Venture Way

Grantham

Lincolnshire

NG31 7XS

United Kingdom

Tel: + 44 (0)1476 590666

Fax: + 44 (0)1476 570605

Email: [email protected]


Electra House

Crewe Business Park

Crewe

Cheshire

CW1 6GL

United Kingdom

Tel: + 44 (0)1270 500440


Abu Dhabi Branch Office

P.O. Box 52937

Abu Dhabi

United Arab Emirates

Tel: + 971 2 671 6895

Fax: + 971 2 674 2342

Email: [email protected]

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www.cathodic.co.uk

accreditations

Cathodic 6pp - Single Pages 3/3/08 10:18 Page 6

Marine Growth Anti-Fouling Systems

Cuprion™SHIPS & MARINE VESSELS

Bio-Fouling of seawater intakes on Ships & Marine Vessels can be a major problem, causing expensive equipment damage and pipework blockages, leading to shut down of vital seawater supplies.

In the case of FW and FI FI systems Crewe Safety and Activity Reliability must be considered. In addition, repairs to damaged pumps, valves and pipe work are both costly and time consuming.

Chief Engineers would consider any remedial actions involving pipe section removal, repair, cleaning and re-installation as major refurbishment work on any operating marine craft or vessel.

Cuprion™ - THE SOLUTION

Cathodic Protection Co. Limited has developed a range Cuprion™ anti-fouling systems to protect submerged pumps, seawater intakes and associated pipework against marine growth. Originally the Cuprion™ system was developed and utilised for application on Platforms in North Sea during the Early 1970’s.

Developing the system for use on Ships and Marine Vessels involved changes to hardware and installation methods, Design requirements remained unchanged as Cuprion™ operates on proven electrolytic principles,


Cuprion™FIREWATER PUMP FOULING PREVENTION

.

Marine Growth Prevention is achieved by employing a small dc current flow (generally less than 0.5 Kw). This current flow energises copper and aluminium anodes to produce a fully effective, anti-foulant dosing solution. Selected dosing levels vary slightly to suit location and application, however maximum dosing limits utilised for design purposes are 25 µg/litre and 4 µg/litre for copper and aluminium respectively.

Copper is a natural biocide /algaecide and providescomplete protection from marine growth with no adverse environmental impact.

Aluminium anodes produce aluminium hydroxide, whichcombines with the copper ions holding them in solution,keeping pipe work blockage free. Aluminium hydroxidealso helps to arrest corrosion on internal pipe surfaces.

Where space or weight restrictions are design considerations, CPCL have developed systems that can be mounted above or below deck. These systems utilise an electrolysis tank or Dosing Spool.

The Cuprion™ anodes are simply mounted in the electrolysis tank or Candu™ dosing spool and energised to produce anti-foulant solution, which is delivered via suitably rated pipes or hoses. Several seawater intake systems can be Marine Growth Protected from a single source,

Electrolysis tanks are generally mounted on a steel plinth along with the dc power unit, making the complete system integral, ideal for maintenance operations.

The Candu™ dosing unit can be mounted vertically or horizontally in any accessible, convenient location.

Electrodes take around 30 minutes to replace whilst at sea or in a dry dock, on these easy to maintain and flexible Anti-Fouling systems.

Cuprion™ - IN THE MARINE INDUSTRY

Cuprion™ systems have been installed on all types of Ships & Marine Vessels indicative list below.

Vessel Details Country Client Details

FPSO Support Vessels UAE Lamnalco Engine Cooling and Fire Fighting Systems.Curlew AHTS UAE Lamnalco Engine Cooling and Fire Fighting Systems.60 Metre AHTS Thailand Mermaid Maritime Central Cooling System

40 Metre Ferry Boat Croatia Divcom d.o.o Electrodes mounted in Fwd & Aft Sea Chests.



NFPA 20 - Cuprion™ STANDARD RANGE

CPCL have developed a standard range to suit National Fire Protection Association directives in NFPA 20 – Standard for the Installation of Stationary Pumps for Fire Protection. The selector chart overleaf indicates the range of Cuprion™ systems available to suit NFPA 20.

NFPA 20 - Cuprion™ SCOPE OF SUPPLY

NOTES.

Items 2, 3,6,7,8 &10 provided by CPCL, remainder by others. CPCL can provide Items 4,9,11 & 12 upon request and receipt of relevant information.

Standard TR Control Unit utilises M/Steel coated IP45 enclosure suitable for indoor installation, other specifica-tions available upon request.

Electrode Unit cable tail employs multi-stranded, tinned copper conductor, CSA to suit current output.

System available in 12-14 weeks (Ex-Works) from Approved Documents/Purchase Order depending on client requirements,

Electrode unit weight may vary, sizing based on maximum practical weight, shorter electrode life can be accommodated to suit project specific requirements.

CPCL shall provide a formal quotation for a standard NFPA 20 Cuprion™ within 2 working days from receipt of a formal enquiry, email [email protected]. For further visit our website at www.cathodic.co.uk.



NFPA 20 - Cuprion™ SYSTEM SELECTOR

Flow RateFlow Rate Electrode Life (Years)

ElectrodeWeight (kgs)

Cuprion™ System I.D. Code

Usgpm L/min

Electrode Life (Years)



25 95 10 45 NFPA - 0025 - 1050 189 10 45 NFPA - 0050 - 10

100 379 10 45 NFPA - 0100 - 10

150 568 5 45 NFPA - 0150 - 05

200 757 5 45 NFPA - 0200 - 05

250 946 5 45 NFPA - 0250 - 05

300 1,136 5 45 NFPA - 0300 - 05

400 1,514 5 60 NFPA - 0400 - 05

450 1,703 5 60 NFPA - 0450 - 05

500 1,892 5 60 NFPA - 0500 - 05

750 2,839 5 80 NFPA - 0750 - 05

1,000 3,785 5 90 NFPA - 1000 - 05

1,250 4,731 5 110 NFPA - 1250 - 05

1,500 5,677 5 145 NFPA - 1500 - 05

2,000 7,570 5 145 NFPA - 2000 - 05

2,500 9,462 5 170 NFPA - 2500 - 05

3,000 11,355 5 200 NFPA - 3000 - 05

3,500 13,247 5 245 NFPA - 3500 - 05

4,000 15,140 5 260 NFPA - 4000 - 05

4,500 17,032 5 310 NFPA - 4500 - 05

5,000 18,925 5 390 NFPA - 5000 - 05

.


Cuprion™OFFSHORE PLATFORMS

Bio-Fouling of water intake pumps and pipework on Offshore Platforms can be a major problem, causing expensive equipment damage and pipework blockages, leading to shut down of vital seawater supplies.

In the case of fire water systems Crewe Safety and Structure Integrity must be considered. In addition, repairs to damaged pumps and pipe work are both costly and time consuming.

Maintenance Managers would consider any remedial actions involving pipe section removal, repair, cleaning and re-installation as major refurbishment work on any operating offshore facility.


Cathodic Protection Co. Limited has developed a range Cuprion™ anti-fouling systems to protect submerged pumps, seawater intakes and associated pipework against marine growth. Originally the Cuprion™ system was developed and utilised for North Sea application during the Early 1970’s. Today the system is specified for use on Offshore Platforms worldwide by many of the major Oil & Gas offshore operators.

Cuprion™ operates on electrolytic principles, employing a small dc current flow (generally less than 1 Kw). This current flow energises copper and aluminium anodes to produce a fully effective, anti-foulant dosing solution.Selected dosing levels vary slightly to suit location and application, however maximum dosing limits utilised for design purposes are 25 µg/litre and 4 µg/litre for copper and aluminium respectively.


Aluminium anodes produce aluminium hydroxide, whichcombines with the copper ions holding them in solution,keeping pipe work blockage free. Aluminium hydroxidealso helps to arrests corrosion on internal pipe surfaces.

The Cuprion™ system has been successfully applied on all types of seawater intakes from submerged pumps to open intake sea chests. The design of the electrode units can be adapted to suit all application requirements, but are usually flange mounted on submerged pumps or bolted to the wall of a sea chest.



Where space or weight restrictions are design considerations, CPCL have developed a deck mounted system that utilises an electrolysis tank with required seawater flow and return connections.

The Cuprion™ anodes are simply mounted in the tank and energised to produce anti-foulant solution, which is delivered to the intake area via suitably rated pipes or hoses.



The electrolysis tank is generally mounted on a steel plinth adjacent to the dc power unit, making the complete system integral, ideal for maintenance operations. Anti-Fouling electrodes take around 30 minutes to replace.

Cuprion™ - IN THE OFFSHORE INDUSTRY

Cuprion™ systems have been installed on all types of offshore structures worldwide, indicative list below.

Field/Platform Country Client System DetailsAngostura Gas Project Trinidad BHP Billiton Firewater & Jockey Pumps. Deck Mounted System.Cleeton UK BP Exploration Fire & Sea Water Pumps. Pump Mounted Electrodes.Lyell Field Power Buoy. UK Monitor Oil Cooling Water Intakes. Sea Chest Mounted Electrodes.

Orlan, Sakhalin Island Russia Exxon Mobil Fire/Seawater Lift Pumps, Pump Mounted Electrodes.

Panna Capacity Enhancement India WPIL Seawater Lift Pump, Pump Mounted Electrode.

Rough Platform Upgrade UK Amec/Centrica Change from ECU to Cuprion™. Cooling, Fire & Service Water. Pump Mounted Electrodes.

To obtain additional technical or product data sheets on our Anti-Fouling products please contact us on email [email protected]. For further information on CPCL visit our website at www.cathodic.co.uk.

‘CUPRION’ ANTI FOULING

5.0 CONTENTS

5.0 ‘Cuprion’ Anti Fouling

5SE

CT

ION

OPENER Cuprion Anti Fouling 7/8/08 10:00 Page 1



REVISION 1


DATASHEET5.0

Cathodic Protection Co. Limited have manufactured and supplied the electrolytic 'Cuprion'™ anti-fouling system since theearly 1970's to protect pumped sea water systems against marine growth. Today, the system is used by many of themajor oil and gas offshore operators to protect vertical sea water and fire water pumps on platforms. Otherapplications include jetty fire pumps and sea water intake systems.

Benefits of the 'Cuprion'™ Ant-Fouling System Include:-

• Reduction in power requirements over alternative methods for fouling control.

• Low maintenance system

• Low power requirement

• No handling or storage of chemicals required

• Environmentally acceptable

• 35 years of proven experience

System Description

The method is based upon the use of impressed current oncopper and aluminium anodes which are themselves containedwithin an insulated steel frame which forms the cathode. Theanode/cathode electrode unit is suspended from the pumpmotor base within the confines of the caisson so that all thewater entering the pump must pass the electrode unit.

The ‘Cuprion’ system consists of two parts – the electrode unitand control panel. The electrode contains a number of copperand aluminum anode bars held together in a steel frame toform the cathode. The actual number and size of the anodes isconfigured to suit each installation and available space formounting the electrode unit. The anodes are connected to theconstant current rectifier located within a safe area.

The control panel is designed to regulate the anode currents inboth ‘pump on’ and ‘pump off’ condition, so that during thepump standby condition an atmosphere of copper ions in thelocal environment will maintain the pump free from fouling.This feature is particularly useful for installation on fire pumpsthat are generally operated for a short period each week.

Dosage levels of copper ions are extremely small and measuredin micrograms per litre of seawater. Therefore, relatively smallquantities of copper are required to provide protectiondependent upon the flow rate and life required.

Datasheet 5.0 7/8/08 09:59 Page 1



REVISION 1


DATASHEET5.0

Deck Mounted Option

For some applications traditional method of pump / electrode configuration may not be suitable. As an alternative weoffer the deck mounted system.

With the deck mounted 'Cuprion'™ anti-fouling system the anodes are located inside an tank through which sea water isfed from the main sea water system. As the water passes through the tank the carefully controlled anode currentsensure that the correct dosing level is applied for the particular application. The treated water is then piped downdirectly to the pump suction. In this way several pumps can be protected against fouling from a single treatmentsource. The Deck Mounted 'Cuprion'™ System is ideally suited for retro-fitting where the pump / electrode configurationmay not be possible.

Application For Submerged Pumps

With extensive experience in the design of ‘Cuprion’TM systems, CPCL provides anti fouling equipment for a wide variety of applications including :-

• Offshore sea water lift pumps

• Offshore fire water lift pumps

• Jockey Pumps

• Jetty Fire Pumps

• Industrial sea water cooling systems

Datasheet 5.0 7/8/08 09:59 Page 2


Cuprion™SHIPS & MARINE VESSELS

Bio-Fouling of seawater intakes on Ships & Marine Vessels can be a major problem, causing expensive equipment damage and pipework blockages, leading to shut down of vital seawater supplies.

In the case of FW and FI FI systems Crewe Safety and Activity Reliability must be considered. In addition, repairs to damaged pumps, valves and pipe work are both costly and time consuming.

Chief Engineers would consider any remedial actions involving pipe section removal, repair, cleaning and re-installation as major refurbishment work on any operating marine craft or vessel.


Cathodic Protection Co. Limited has developed a range Cuprion™ anti-fouling systems to protect submerged pumps, seawater intakes and associated pipework against marine growth. Originally the Cuprion™ system was developed and utilised for application on Platforms in North Sea during the Early 1970’s.

Developing the system for use on Ships and Marine Vessels involved changes to hardware and installation methods, Design requirements remained unchanged as Cuprion™ operates on proven electrolytic principles,



.

Marine Growth Prevention is achieved by employing a small dc current flow (generally less than 0.5 Kw). This current flow energises copper and aluminium anodes to produce a fully effective, anti-foulant dosing solution. Selected dosing levels vary slightly to suit location and application, however maximum dosing limits utilised for design purposes are 25 µg/litre and 4 µg/litre for copper and aluminium respectively.


Aluminium anodes produce aluminium hydroxide, whichcombines with the copper ions holding them in solution,keeping pipe work blockage free. Aluminium hydroxidealso helps to arrest corrosion on internal pipe surfaces.

Where space or weight restrictions are design considerations, CPCL have developed systems that can be mounted above or below deck. These systems utilise an electrolysis tank or Dosing Spool.

The Cuprion™ anodes are simply mounted in the electrolysis tank or Candu™ dosing spool and energised to produce anti-foulant solution, which is delivered via suitably rated pipes or hoses. Several seawater intake systems can be Marine Growth Protected from a single source,

Electrolysis tanks are generally mounted on a steel plinth along with the dc power unit, making the complete system integral, ideal for maintenance operations.

The Candu™ dosing unit can be mounted vertically or horizontally in any accessible, convenient location.

Electrodes take around 30 minutes to replace whilst at sea or in a dry dock, on these easy to maintain and flexible Anti-Fouling systems.

Cuprion™ - IN THE MARINE INDUSTRY

Cuprion™ systems have been installed on all types of Ships & Marine Vessels indicative list below.

Vessel Details Country Client Details

FPSO Support Vessels UAE Lamnalco Engine Cooling and Fire Fighting Systems.Curlew AHTS UAE Lamnalco Engine Cooling and Fire Fighting Systems.60 Metre AHTS Thailand Mermaid Maritime Central Cooling System

40 Metre Ferry Boat Croatia Divcom d.o.o Electrodes mounted in Fwd & Aft Sea Chests.



NFPA 20 - Cuprion™ STANDARD RANGE

CPCL have developed a standard range to suit National Fire Protection Association directives in NFPA 20 – Standard for the Installation of Stationary Pumps for Fire Protection. The selector chart overleaf indicates the range of Cuprion™ systems available to suit NFPA 20.

NFPA 20 - Cuprion™ SCOPE OF SUPPLY

NOTES.

Items 2, 3,6,7,8 &10 provided by CPCL, remainder by others. CPCL can provide Items 4,9,11 & 12 upon request and receipt of relevant information.

Standard TR Control Unit utilises M/Steel coated IP45 enclosure suitable for indoor installation, other specifica-tions available upon request.

Electrode Unit cable tail employs multi-stranded, tinned copper conductor, CSA to suit current output.

System available in 12-14 weeks (Ex-Works) from Approved Documents/Purchase Order depending on client requirements,

Electrode unit weight may vary, sizing based on maximum practical weight, shorter electrode life can be accommodated to suit project specific requirements.

CPCL shall provide a formal quotation for a standard NFPA 20 Cuprion™ within 2 working days from receipt of a formal enquiry, email [email protected]. For further visit our website at www.cathodic.co.uk.



NFPA 20 - Cuprion™ SYSTEM SELECTOR

Flow RateFlow Rate Electrode Life (Years)



Usgpm L/min

Electrode Life (Years)



25 95 10 45 NFPA - 0025 - 1050 189 10 45 NFPA - 0050 - 10

100 379 10 45 NFPA - 0100 - 10

150 568 5 45 NFPA - 0150 - 05

200 757 5 45 NFPA - 0200 - 05

250 946 5 45 NFPA - 0250 - 05

300 1,136 5 45 NFPA - 0300 - 05

400 1,514 5 60 NFPA - 0400 - 05

450 1,703 5 60 NFPA - 0450 - 05

500 1,892 5 60 NFPA - 0500 - 05

750 2,839 5 80 NFPA - 0750 - 05

1,000 3,785 5 90 NFPA - 1000 - 05

1,250 4,731 5 110 NFPA - 1250 - 05

1,500 5,677 5 145 NFPA - 1500 - 05

2,000 7,570 5 145 NFPA - 2000 - 05

2,500 9,462 5 170 NFPA - 2500 - 05

3,000 11,355 5 200 NFPA - 3000 - 05

3,500 13,247 5 245 NFPA - 3500 - 05

4,000 15,140 5 260 NFPA - 4000 - 05

4,500 17,032 5 310 NFPA - 4500 - 05

5,000 18,925 5 390 NFPA - 5000 - 05

.



Bio-Fouling of water intake pumps and pipework on Offshore Platforms can be a major problem, causing expensive equipment damage and pipework blockages, leading to shut down of vital seawater supplies.

In the case of fire water systems Crewe Safety and Structure Integrity must be considered. In addition, repairs to damaged pumps and pipe work are both costly and time consuming.

Maintenance Managers would consider any remedial actions involving pipe section removal, repair, cleaning and re-installation as major refurbishment work on any operating offshore facility.


Cathodic Protection Co. Limited has developed a range Cuprion™ anti-fouling systems to protect submerged pumps, seawater intakes and associated pipework against marine growth. Originally the Cuprion™ system was developed and utilised for North Sea application during the Early 1970’s. Today the system is specified for use on Offshore Platforms worldwide by many of the major Oil & Gas offshore operators.

Cuprion™ operates on electrolytic principles, employing a small dc current flow (generally less than 1 Kw). This current flow energises copper and aluminium anodes to produce a fully effective, anti-foulant dosing solution.Selected dosing levels vary slightly to suit location and application, however maximum dosing limits utilised for design purposes are 25 µg/litre and 4 µg/litre for copper and aluminium respectively.


Aluminium anodes produce aluminium hydroxide, whichcombines with the copper ions holding them in solution,keeping pipe work blockage free. Aluminium hydroxidealso helps to arrests corrosion on internal pipe surfaces.

The Cuprion™ system has been successfully applied on all types of seawater intakes from submerged pumps to open intake sea chests. The design of the electrode units can be adapted to suit all application requirements, but are usually flange mounted on submerged pumps or bolted to the wall of a sea chest.



Where space or weight restrictions are design considerations, CPCL have developed a deck mounted system that utilises an electrolysis tank with required seawater flow and return connections.

The Cuprion™ anodes are simply mounted in the tank and energised to produce anti-foulant solution, which is delivered to the intake area via suitably rated pipes or hoses.



The electrolysis tank is generally mounted on a steel plinth adjacent to the dc power unit, making the complete system integral, ideal for maintenance operations. Anti-Fouling electrodes take around 30 minutes to replace.

Cuprion™ - IN THE OFFSHORE INDUSTRY

Cuprion™ systems have been installed on all types of offshore structures worldwide, indicative list below.

Field/Platform Country Client System DetailsAngostura Gas Project Trinidad BHP Billiton Firewater & Jockey Pumps. Deck Mounted System.Cleeton UK BP Exploration Fire & Sea Water Pumps. Pump Mounted Electrodes.Lyell Field Power Buoy. UK Monitor Oil Cooling Water Intakes. Sea Chest Mounted Electrodes.

Orlan, Sakhalin Island Russia Exxon Mobil Fire/Seawater Lift Pumps, Pump Mounted Electrodes.

Panna Capacity Enhancement India WPIL Seawater Lift Pump, Pump Mounted Electrode.

Rough Platform Upgrade UK Amec/Centrica Change from ECU to Cuprion™. Cooling, Fire & Service Water. Pump Mounted Electrodes.

To obtain additional technical or product data sheets on our Anti-Fouling products please contact us on email [email protected]. For further information on CPCL visit our website at www.cathodic.co.uk.

Cuprion™ CAnDU™Marine Growth Anti-Fouling Systems

SEAWATER PUMP FOULING PREVENTION

Cathodic Protection Co. Limited have manufactured and supplied

the electrolytic ‘Cuprion’™ anti-fouling system since the early

1970’s to protect pumped sea water systems against marine

growth. Today, the system is used by many of the major oil and

gas offshore operators to protect vertical sea water and fire

water pumps on platforms. Other applications include jetty fire

pumps and sea water intake systems.

• Quickeranodereplacement

• Anodeschangedwithoutliftingpump

• Multiplepumpscanbeservicedfromonelocation

• DirectreplacementforHypochlorite/Chemicaldosing

system using same dosing pipework

• Nohazardouschemicalstohandle

• Non-corrosivemedia,copper&aluminiumionsolution

• LowerpowerconsumptionthanHypochlorite

• Minimalmaintenancerequirement

• SafeforusewithReverseOsmosisequipment

The method is based upon the application of an impressed

current through copper and aluminium electrodes which allows

a controlled dosing process of both elements in solution. The

copper acts as a natural biocide preventing hard bio-fouling

suchasBarnacles,Limpets,MusselsandTubeworms.The

Aluminiumallowsthecoppertostayinsolutionforlongerand

provides a corrosion control benefit.

Bio-Fouling of water intake pumps and pipework can be a major

problem,causingexpensiveequipmentdamageandpipework

blockages, leading to shut down of vital seawater supplies.

To address these issues Cathodic Protection Co. Limited

has developed a deck mounted anti-fouling system, which

can use the existing delivery pipe work from a chlorine anti-

fouling system. This latest version from Cathodic is known

astheCAnDU™system.Itfeaturesamodulardesignwhich

can be expanded to suit different pump capacities, allowing

manufacturing costs to be minimised. The result is an affordable

system which will provide complete anti fouling protection to the

pump and significant savings to the operator.

• Reductioninpowerrequirementsoveralternativemethods

for fouling control.

• Lowmaintenancesystem

• Lowpowerrequirement

• Nohandlingorstorageofchemicalsrequired

• Environmentallyacceptable

• 35yearsofprovenexperience

BENEFITSOFTHE‘CUPRION’™ANTIFOULINGSYSTEMS:-

CUPRIONTMANTIFOULINGOVERVIEW

FEATURES,BENEFITSANDADVANTAGESOFTHECAnDU™SYSTEM

CUPRIONTMSYSTEMDESCRIPTION

CAnDU™SYSTEMOVERVIEW

TYPICALCAnDUTMINSTALLATION

Ratherthanattachthecopperandaluminium

electrodes on pump, the anti fouling solution

is produced in a deck mounted vessel and

delivered to the pump intake area. This system

canutiliseexistingpipeworkfromHypochlorite

systemsifrequired.

VENT & PRESSURE RELIEF VALVE

ISOLATION VALVE

PLASTIC PIPE WORK

ANODE JUNCTION BOX

ANTI-FOULING FEED TO PUMP INTAKE

PRESSURISED WATER SUPPLY

EachCAnDUTM unit is designed according to the specific

requirementsoftheproject,howeverthefundamentalsofthe

design are outlined in the diagram below. The vessel body is

availableinheavydutyuPVCmaterialorsteelforgreaterimpact

resistance if this is a site consideration.

TheCopperandAluminiumelectrodesarelocatedinsidethe

vessel and are easily replaced at the end of their service life. The

complete assembly is mounted along with the power control unit

on a self contained skid unit as shown overleaf.

IfrequiredtheCAnDUTM unit can be used to dose multiple

pumps from one vessel making it even more cost effective and

efficient to run.

Ingeneralelectrodelifeisdesignedfor1–2yearsinservice.

Replacementelectrodescanbemadeinunderonehour

andspare/replacementelectrodescanbesentquicklyand

efficiently via our network or distributors worldwide.

TheCAnDUTM system is environmentally friendly, cost efficient

andremovestheneedtohandleandstorehazardouschemicals

associatedwithalternativeAntiFoulingsolutions.

TYPICALCAnDUTMUNIT

VISUALDESIGNGUIDE-ANTIFOULINGSYSTEM

VENT & PRESSURE RELIEF VALVE

ISOLATION VALVE

PLASTIC PIPE WORK

STEEL FLANGES

COPPER / ALUMINIUM ELECTRODES

HEAVY DUTY PLASTIC BODY

ANODE JUNCTION BOX

ANTI-FOULING FEED TO PUMP INTAKE

PRESSURISED WATER SUPPLY

CAnDUTMDECKMOUNTEDANTIFOULING

TheCAnDUTM unit is locally controlled with a simple to use

switchmodepowersupply/outputcontrolunit.

This allows the client to set and monitor dosing levels

and systems performance levels.

Once set up the unit requires practically zero user

interface / maintenance.

The units construction is designed for harsh marine

environment operating conditions.

The Control Unit automatically adjusts the dosing level

when pumps are in standby mode and at most risk of

marine growth. This feature maintains pump protection

whilst at the same time increasing electrode life and

minimising operating costs.

The CAnDUTM system comes as a complete skid

mounted assemble ready for fast and easy installation

at site.

Vessel can be constructed in uPVC or Steel (including

Stainless options) according to the requirements and

location of the site.

CuprionTM units are in service across the world and

spare parts and replacement electrodes are available

quickly and economically through our range of

distributors or direct from CPCL.

Corrosion problems and poor reliability are issues

which are often reported by operators of chlorine based

anti fouling systems. The Cuprion™ system in contrast

is non-corrosive and requires no routine maintenance.

InordertohelpyouspecifyandrequestaquotationforaCAnDUTMsystemwehaveprovidedachecklist/questionnairebelowrequesting

the outline information we need to provide you with a detailed offer.

Locationofpumps(i.e.NorthSea,GulfofMexico)

Numberofpumps:

Normalpumprunningcapacity:

Pumpruntime:

Timebetweenpumpoverhauls/removalfromcaisson:

LocationandIPRatingofControlPanel:

Otherrelevantinformation:

Distancebetweenpumpintakeanddecklevel:

CaissonI.D

m³/hr

hr/yr

Years

m

mm

CUPRIONTMANTIFOULINGOVERVIEW

Referencesinclude

The standard design consists of 1 copper and 1 aluminium anode. The following chart gives an estimation of the flow rate that can be

protected by this standard design, against pump hours run per year.

Thischartisjustoneexample,wecanprovidedesignanddatatosuitmanydifferentapplications.Submissionofthedatarequested

abovewillenableustotailorasolutionspecifictoyourrequirements.

Cathodic Protection Co Ltd

Venture Way

Grantham

NG31 7XS

United Kingdom

Tel : + 44 (0)1476 590666

Fax : + 44(0)1476 570605

Email :[email protected]

Web : www.cathodic.co.uk

cuprion

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