Wilson Walton Korea

CATHODIC PROTECTIONICCP SYSTEM Marine ICCP System / MGPS System / Industry ICCP System

HSCI-ANODE / Cathodic Protection Rectifier / Monitoring System / Hybrid System for Cathodic Protection for Complex Concrete StructuresSACRIFICIAL ANODES ALOA Aluminium Anodes / ZINCOA Zinc Anodes / MAGNOA Magnesium Anodes

ENGINEERING SERVICE INSTALLATION&CONSTRUCIONINSTRUMENTS GLOBAL NETWORK

CONTENTS

ICCP SYSTEM

Marine ICCP System 06

MGPS System 11

Industry ICCP System 13

·HSCI-Anode 14

·Cathodic Protection Rectifier 16

·Monitoring System 17

·Hybrid System for Cathodic Protection for Complex Concrete Structures 18

SACRIFICIAL ANODES

ALOA Aluminium Anodes 20

ZINCOA Zinc Anodes 25

MAGNOA Magnesium Anodes 28

ENgINEERINg SERvICE 30

INSTALLATIONS &CONSTRuCTION 32

INSTRuMENTS 33

gLObAL NETwORk 34

In the field of Cathodic Protection, wilson walton korea which founded in Y1999 has been

the acknowledged manufacturer for over 10 years.

We have served the cathodic protection and marine industry with a quality and reliable System.

In the beginning of Y2008, Wilson Walton Korea(WWK)has been merged to Hwaseung R&A,

a group company of Hwaseung which is one of the world’s top global company.

Our world wide service and sales network covers all major countries and main ports.

With the our research lab and cream-of-the-crop reseachers focusing on the development of

new technologies, and our NACE certified CP engineers aiming on the customer satisfactory,

Wilson Walton Korea is earning recognition as one of the world’s most innovation

manufacturers of Cathodic Protection field.

ICCP SYSTEM

Jun Contracted Drilling Ship ICCP System and

MGPS, Transocean Project DSME

May Acquired a membership of The Corrosion

Science Society of Korea

Acquired a membership of NACE

International

Apr Concluded an agreement for research and

development with Korea Maritime

University

Concluded the technical agreement with

Correl Technology Co.,Ltd

Merged to Hwaseung R&A, Group

company of Hwaseung

Dec Achieved total sales records of 845 new

building ships in the domestic and foreign

shipyards.

Jan Contracted Drilling Rig ICCP System &

MGPS, OdfJell Project at DSME

Dec Contracted Drilling Ship ICCP System and

MGPS, Transocean Project DSME

May Contracted FPSO ICCP System, Agbami

Project at DSME

Nov Acquired a member ship of Korea Marine

Equipment Association

Sep Contracted FPSO ICCP System, BP Great

Plutonia Project at HHI

Mar Developed New ICCP communication

module for interfacing with ship's IAS

Dec Achieved total sales records of 187 new

building ships in the domestic shipyards

Feb Launched New ICCP anode “Super Anode”

which newly designed and developed

Jan Launched new ICCP controller which

developed on the basis of new technology

Oct Acquired CE Certificate of Conformity

Apr Acquired ISO 9002 by DNV

Apr Concluded the license agreement with

Corrpro Company Europe (formerly,Wilson

Walton UK )

Nov Company Established, Wilson Walton

Korea

Wilson Walton Korea Milestone

2008

2007

2006

2005

2002

2001

1999

2000

2004

2003

10 Years of AchievementJul 、07 Established CMB factory in Taicang,

China.(HSR)

Feb 、06 Established an affiliated R&D InstituteAcquired SQ Mark(hyundai MotorCo.,Ltd. and Kia Motors Co.,Ltd.)

Oct 、05 Expended the factory Building andextended CMB production line(B/B Mixer)

Mar 、04 HWASEUNG Dusseldorf Office opens inDusseldorf, Germany

Aug 、03 HUNOMIK SHANGHAI INT’L TRADECO.,LTD. is founded in Shanghai, China

Jul 、03 HWASEUNG Nagoya Office opens inNagoya, Japan

Jun 、03 BEIJING HECHENG R&A VEHICLEPARTS CO.,LTD. is founded in Beijing,China

Mar 、03 HS AUTOMOTIVES ALABAMA INC. isfounded in Alabama, U.S.

Jan 、03 HWASEUNG Detroit Office opens inDetroit, Michigan, U.S.

Jul 、02 HS USA is founded in the U.S.

May 、02 HSLS RUBBER INDUSTRIES SDN.BHD. is founded in Malaysia

Apr 、02 HWASEUNG VINA CO.,LTD. is foundedin Vietnam

Jan 、02 HECHENG VEHICLE PARTS(TAICANG)CO.,LTD. is founded in Taicang, China

Nov 、97 HSI AUTOMOTIVES LTD. is founded inIndia

Jan 、96 HWASEUNG MATERIAL CO.,LTD. isfounded

Sep 、95 HWASEUNG CLIMATE CONTROLINDUSTRIES CO.,LTD. is founded

Oct 、92 HWASEUNG (H.K) LTD. is founded inHongKong

Nov 、90 HWASEUNG CORPORATION isawarded the Gold Tower Industrial Medalof Honor and the 500 Million Dollar ExportTower Award

Nov 、80 HWASEUNG INDUSTRIES CO.,LTD. isawarded the Gold Tower Industrial Medalof Honor on the Day of Export

Sep 、78 HWASEUNG R&A CO.,LTD. is founded

Oct 、77 Seunghoon Hyun becomes Chairman

Nov 、71 HWASEUNG T&C CORPORATION isfounded

May 、69 HWASEUNG INDUSTRIES CO.,LTD. isfounded

Aug 、53 HWASEUNG CORPORATION isfounded

Hwaseung Group Milestone

1950

1960

1970

1980

1990

2000

50 Years of Achievement

ICCP SYSTEMSacrificial Anodes

Engineering ServiceInstallations & construction

Instruments

Marine ICCP System

MGPS System

Industry ICCP System

MARINE ICCP SYSTEM

Wilson Walton Korea 06_07

Marine Impressed Current Cathodic Protection System

■ Fully split, underwater replaceable within1 or 2 hours.

■ Robust construction yet extremely compact sized for massive external impact

■ Simplified installation procedures reduce costs of anode replacement in the water.

■ Innovative sealing system ensures the perfect water tight.

■ Semi-permanent life time of anodes

■ Ensures damage free against large pressure fluctuation (8 ~ 15 Kpa)

FEATuRES AND bENEFITS

■ CONTAINER VESSEL

■ LNG CARRIER

■ ICE BREAKER

■ FPSO

■ NAVAL VESSEL

■ FISHING VESSEL

■ PRODUCT CARRIER

■ BULK CARRIER

■ OFFSHORE PLANT

■ CRUISERSHIP

■ FLOATING DOCK

APPLICATION



Instruments

The principle of Impressed Current Cathodic Protection

Anodic areas on metallic components lead to corrosion, roughened hull surfaces and

deterioration of components such as propellers, with a resultant loss of efficiency.

The ICCP system, developed over many years of practical application at sea, eliminates these

anodic areas by means of the impressed current system, which protects against corrosion by

impressing a current equal and opposite to the electrical discharge involved in corrosion.

The ICCP system comprises Anodes, Reference electrodes and a Transformer/Rectifier

controller power unit and is designed to maintain automatic control of the optimum output

current by means of reference electrodes.

The sizes of the components and their positions on the hull are specified according to design

parameters which take into consideration the size of the vessel and fluctuations in the

protection current likely to be encountered during sea-going service.

Whilst the foregoing protects the hull structure, it is also important to protect the propeller,

exposed shafting and rudder. The propeller and shafting are qrounded to the hull structure with

a shaft slipring, making them electrically common with the hull. The rudder is also grounded

with a flexible cable mounted on the rudder stock and, with electrical continuity established, the

ICCP system fully protects the components against corrosion.

Overview of MARINE ICCP System

After extensive research and development, we have designed the new generation ICCP anode

to cope with any calculated pressure fluctuation on ship’s stern area. For each individual speed

and power we can calculate these pressure fluctuation.

Recently the size of container ships has increased, however the draft of such large ships

remains the same(12.5 ~13.5). Accordingly this will increase the load of propeller blade as well

as the amplitude of pressure fluctuation to the stern anode positioned area. The bilge vortex of

such large container ship is extremely stronger and it’s trace line is more likely closer to the

stern anode and this may hit the surface mounted linear anode.(after anode)

In addition, due to the continuous, regular pressure fluctuation and the effect caused by bilge

vortex, the anode body made by epoxy resin will be easily damaged and holding nuts of anode

may easily loosen and we therefore predict some hair cracks to the cable. So, the sea water

may be sucked into the ship’s inside and sometime lost the anode totally. ITTC(International

Towing Tank Conference) (1)has recommended around 8kpa as a maximum pressure

fluctuation but some model tests of 6000 Teu container ships shows it’s value appx 11kpa or

more.

The newly constructed anode is very strong and compact and is guarantied sea water leak

proof even if pressure fluctuation around 8~15kpa or more.

We recommend that the specially designed with steel plate back up, under water replaceable

anode is to be fitted so that the anode can be replaced anytime without dry docking.

MARINE ICCP ANODES


MARINE ICCP SYSTEM

POwER CONTROLLER uNIT

REMOTE DISPLAY uNIT

Power Controller Unit incorporates a microprocessor which carries out automatic self checking,

continually monitors all readings received and indicates operational errors for the ship’s personnel.

Data received can also be stored for output later onto computers or hard copy log sheets.

There is also a built-in facility for connecting the system directly to the ship’s computer or into a separate

data logger/chart recorder.

Our ICCP systems can be provided for any size of vessel. A new

design is now available for small, specialized craft, such as tugs, fishing

boats, supply boats, ice breakers and FPSO, whose cathodic protection

requirements can be more demanding and require specialized system.

In icebreakers, for example, exposed galvanic anodes on surface of the

hull would be extremely vulnerable to damage or loss, particularly in the

bow section. Coatings on icebreakers are also quickly damaged,

exposing large areas of bare steel which require high current densities

for adequate protection. Wilson Walton Korea’s specifically designed

impressed current systems can meet these demands. In FPSO, for

another example, which require very high grade system and longer

lifetime as 20~25 years.

Remote Display Unit provide a large size graphic LCD which

anable the ship’s engineer to check easily all recordings without

scroll of display. further it provide a mimic board so that they can

find out easily each location of anodes and reference electrode.

A LCD display is provided enabling the vessl’s personnel to record readings on a reqular basis, entering

them onto a log sheet which is returned to our office. Anu adjustments needed are made by our fiield

engineer or ship’s crew. There is a built-in facility for connecting the system directly to the ships computer

system or into separate data logger.

Full electrical protection is provided on input whilst output fuse are fitted in each anode circuit.

All components are readily accessible within the drip-proof steel enclosure.

■ Display of hull potential for every reference electrode

■ Display of current output for every anode

■ Display of total current output for each power control unit

■ Display of temperature for each power control unit

■ Display of abnormal alarm for each power control unit : overprotection, under protection, over current, high temp. power fail

■ Output contact for abnormal alarm

■ Data interfacing with computer based ship’s alarm monitoring system.

■ Power Source : AC220 1P or AC440 1P/3P or

AC690V 3P or Customer’s specification

■ Capacity of Rectifier : 100 ~ 800 Amp, 12 ~ 24VDC

■ Anode number per PSu : 18 ea Max.

■ Reference electrode number per PSu : 6 ea Max.

■ IP grade : IP23 or IP44

Specification

Main Feature

Anode Output Terminal



Instruments

MARINE ICCP ANODES

Circular

Linear

Ref. Cell

Ref.Cell (Traditional Type)

Elliptical

(Traditional Type)

SA440CM MMO/Ti 200 FRP





SA440CP Pt/Ti 200 FRP





SA1200LM MMO/Ti 300 FRP

SA820LM MMO/Ti 175 FRP

SA1200LP Pt/Ti 300 FRP

SA820LP Pt/Ti 175 FRP

CA150EM MMO/Ti 150 FRP



CA150EP Pt/Ti 150 FRP

CA100EP Pt/Ti 100 FRP

CA75EP Pt/Ti 75 FRP

SR45 Pure Zinc

CR50E Pure Zinc

Type of Anodes Model No. Anode

SubstrationCapacity

(Max. Amp)Anode

Encapsulation

[ Ref. Cell ][ Elliptical (Traditional Type) ] [ Ref.Cell (Traditional Type) ]

[ Circular ] [ Linear ]

MARINE ICCP SYSTEM

MGPS SYSTEM

Wilson Walton Korea 10_11 ICCP SYSTEMSacrificial Anodes


Instruments

SHAFT gROuNDINg DEvICE

Shaft Grounding Devise consist of Potentia monitoring panel, Slipring of silver/copper alloy, High purity

silver graphite Brushes, Brush holders and installation accessories.

Shaft Grounding Device is installed on the intermediate propeller shaft and provides full cathodic

protection to the Propulsion shaft.

The millivoltmeter normally reads 250mV full scale. If needed to read the enlarged scales of below 50mV,

choices the toggle switches on the front panel. Reading of below 50mV when shaft is turning at sea

indicate proper grounding, If readings are above 50mV, clean the surface of slip-ring and the contact face

of brush with a clean cloth.The millivoltmeter will read “0” when shaft is at rest because of the current

entering the propeller will return to the hull through the bearing and turbine reduction rears.A millivoltmeter

reading of “0” when shaft is turning at sea indicates a faulty millivoltmeter installation. Checks for

connections of all the terminals and tightness of all the fittings are required.

Operation

This grounding assembly should be checked every seven days for cleanliness. If there has been a build-

up of oil on the slip-ring face this should be removed with a degreaser. Inspect and clean the brushes and

brush holder to prevent blocking from dirt. Inspect the brush copper leads(pig tails) to ensure they have

not become loose or corroded. The brush wear-down should be noted and the compression of the hold-

down springs on the brushes should be adjusted to ensure good electrical contact.

Maintenance

Marine fouling and biofouling commonly occur in Seawater circulation systems. This involves

the Establishment of marine plants and animals, and Bacterial growths. These fouling

organisms enter the system in microscopic and macroscopic form, eg. Larvae and spats,settle

and develop into adult forms wherever favourable environmental condition exist.

Traditional chemical methods of water treatment to prevent fouling are now less favoured.

Particularly, Chlorine accelerates corrosion rates, usually by causing pitting attack on steel, is

environmentally unacceptable and treatment requires continuous monitoring and control.

Over view of MgPS

WWK's MGPS employs a variation of the well established impressed current Cathodic

Protection principle. Direct current applied to the Copper anode(s) releases a controlled

quantity of Copper ions into the system to create an environment in which primary forms of

marine life do not grow current applied to the aluminium anode releases a “floc”, a precipitate of

aluminium hydroxide.

The aluminium oxidation products reduce corrosion rates on ferrous components in the

seawater system by modifying the ferrous oxides formed and by film deposition. Similarly, iron

anodes are utilized for reducing corrosion rates of non-ferrous components.

WWK's MGPS is automatic, requires minimal maintenance and is environmentally friendly.

Mussels are not killed by the system. The environment it creates prevents them settling or

developing. A further benefit of WWK's MGPS is that potable water distillation plants can be

operated without interruption.

wwk's MgPS

Designed for 220V 60Hz Single phase.

The current flowing to each anode is indicated by a seven segment

digital display. This allows visual monitoring of all the separate anode

currents.

The unit also incorporates the following Features as standard:

1. Signalling of open circuit of failure to supply current due to

worn anode by flashing display

2. Mains failure signaled by flashing second decimal point on

display.

3. Mains healthy led indicator

Control Power unit

MGPS SYSTEM


MARINE ICCP SYSTEM

INDUSTRY ICCP SYSTEM



Instruments

MGPS anodes are preferably installed in a sea chest and secured with specially designed

safety caps. Such anodes will have a design life coinciding with dry dock schedules.

In-board fitments in the pipeline or in strainers when anodes can be replaced at any time are

also possible. The anodes are all wired to one or more common control panels that can also

have connections to the pump controlling the water flow.

The worldwide nature of WWK’s operation means that Anfomatic anti-fouling systems can be

designed and fitted to vessels wherever in the world dry docking is available. Whilst installation

is a straight forward procedure, WWK staff are always on hand to provide specialized advice

and to assist with commissioning.

MgPS Anodes

Anti-Fouling Cu Anodes Anti-Corrosin Al AnodesSea chest

■ Simple installation.

■ Pressure tested safety cofferdams

■ Reliable, automatic operation with minimal attention from the crew.

■ Complete protection against biofouling.

■ Reduced corrosion.

■ Minimal power requirements.

■ Modular electronic control panel using one module per flow line.

■ Easy system expansion by adding modules.

■ Anode save feature controls current to the anode based on there being or not being flow in the pipeline.

This considerably increases anode life when flow is intermittent.

Features and benefits

Cathodic protection can be also applied if the metal to be protected is coupled to the negative pole of a

direct current (DC) source, while the positive pole is coupled to an auxiliary anode. Since the driving

voltage is provided by the DC source there is no need for the anode to be more active than the structure

to be protected. In fact, it is possible to use anodes which can remain

inert (non consumable) during impressed cathodic protection. This type

of anode supports other anodic reactions on their surfaces. In

environments where water and chloride ions are present, chlorine

evolution and oxidation of water are possible. It is also possible to use

semi-consumable anodes such as graphite and high silicon iron or

consumable anodes such as scrap iron, for example.

All items to be protected shall be electrically connected and should

have a welded or brazed connection to an anode. For bolted or

clamped assemblies without an all welded brazed electrical grounding,

the electric resistance should be less than 0.10 ohm. Coating on

contact surfaces shall be removed prior to assembly.

In the impressed current CP, the large electrochemical is formed

between an anode and the structure to be protected by a power supply

that is controlled by reading a reference electrode close

to the structure.

Impressed Current Cathodic Protection

Soil corrosion is a complex phenomenon, with a multitude of variables involved. Chemical reactions

involving almost each of the existing elements are known to take place in soils, many of which are not yet

fully understood. The relative importance of variables changes for different materials, making a universal

guide to corrosion impossible. Variations in soil properties and characteristics across three dimensions

can have a major impact on corrosion of buried structures.

Corrosion in Soils

Dissolved oxygen, the principal gas present in water, is responsible for costly replacement of piping and

equipment by corrosive attack on metals with which it comes in contact. The origin of all water supply is

moisture that has been evaporated from land masses and oceans and subsequently precipitated from the

atmosphere. Depending on weather conditions, this may fall in the form of rain, snow, sleet or hail.

As it falls, this precipitation contacts gases comprising the atmosphere and suspended particulates in the

form of dust, industrial smoke and fumes, and volcanic dust and gases.

Corrosion by Natural waters

Seawater systems are used by many industries such as shipping, offshore oil and gas production, power

plants and coastal industrial plants. The main use of seawater is for cooling purposes but it is also used

for fire fighting, oil field water injection and for desalination plants. The corrosion problems in these

systems have been well studied over many years, but despite published information on materials behavior

in seawater, failures still occur. Most of the elements that can be found on earth are present in seawater,

at least in trace amounts. However, eleven of the constituents alone account for 99.95% of the total

solutes, chloride ions being by far the largest constituent.

Corrosion in Sea water

Schematic of an Impressed Current

CP System



HSCI-ANODE High Silicon Cast Iron - AnodeThese anodes are widely used. HSCI anodes contain about 14.5% silicon and certain alloys have 4.5% chromium.

Chromium has now replaced molybdenum as an alloying element in this type of anode. The high silicon content ensures

that the alloy forms a protective film containing silicon dioxide, SiO2.

A prerequisite for the formation of this film is that the anode must initially corrode during the first few hours of operation.

The mechanism of this passivating film is not well understood.

The high electrical conductivity of the film is believed to be due to the presence of iron oxides.

Silicon dioxide is highly resistant to acids but it is readily dissolved in alkaline conditions.

High Silicon Cast Iron anodes are extremely hard and cannot be machined easily.

They are generally cast and then stress relieved by annealing.

Although brittle these anodes have superior abrasion and erosion characteristics compared to graphite



Instruments

High Silicon Cast Iron anodes are widely used usually in conjunction with carbonaceous

backfills in soils.

They have also found limited use in marine and freshwater environments. The maximum

operating current density is determined by the type of alloy and the environment.

For instance, in groundbeds with backfills the current density is limited to between 10 and

20 A m-2 because of problems caused by gas entrapment.

In marine environments, a high iron chromium anode can be operated up to 50 A m-2. As

for graphite, the maximum operating voltage is limited by excessive consumption and

brittleness of the material.

The consumption rate of these anodes is influenced by the operating current density and

the nature of the environment. Generally, a lower current

density reduces the consumption rate. Wastage rates range

from 0.10 to 0.50 kg A-1 y-1. Sulfate ions in particular have

been noted to enhance the dissolution rate of these

materials.

backfill of High Silicon Cast Iron

HSCI Anode Standard Composition

※Standard inventory sizes.

Other special anode configurations are available

Please contact Wilson Walton Korea for details.

HSCI Anode Dimension

Type Nominal XLengthInches

Weight(Ib)

1 1/2D×9L

2D×9L

2 1/2D×9L

1D×60L

1 1/2D×60L

2D×60L

3D×60L

4

5

9

12

26

44

110

FW

G

F

B

CD

D

E

ComponentType Grade 1 Grade 2 Grade 3

0.70-1.10

1.50 max

14.20-14.75

0.50 max

0.50 max

0.50 max

0.75-1.75

1.50 max

14.20-14.75

3.25-5.00

0.40-0.60

0.50 max

0.70-1.10

1.50 max

14.20-14.75

3.25-5.00

0.20 max

0.50 max

Carbon

Manganese

Silicon

Chromium

Molybuden

Copper



Standard Features



Instruments

Cathodic Protection Rectifier Monitoring System

Functions■Remote control of rectifier out and CP potential/current monitoring

■Synchronized on/off function of multiple rectifiers to measure the off (IR-free) potential

■Measurement of T/B potential and Data transmission at a regular interval (typically once a day)

■Easy and effective web server handling/maintenance of CP status of pipelines

Effects■ Technical effects

- Increased data accuracy due to the decrease of error related to manual measurement

- More effective CP maintenance due to the integration of CP-related information

■ Economic effects

- Increased lifetime of pipelines ? Decrease of depreciation expenses of main assets

- Reduction of labor costs

■ Safety effects

- Prevention of huge troubles due to the detection and control of corrosion factors at early stage

- Reassignment of idle manpower to other safe management field

■ Social effects

- Promotion of domestic demand resulted from the development of associated industries

- Improvement of company’s image, e.g., publicity of high technology

Cathodic protection status monitoring technology

Soil corrosion monitoring-Responses of ER sensoron the AC-induced corrosion effects

Continuous corrosion rate monitoring set (thin-filmtype ER sensor + data logger)

WWK's rectifier provides a quality product specifically designed to meet the requirements of our clients.

Used in the majority of applications; this series has a multitude of options available.

- Circuit breaker

- Ammeter

- Silicon rectifying elements

- AC and DC lightning protection

- AC input terminal block

- Power Source ; AC220V/380V/440V/480V 1P /3P

- Frequency ; 60Hz

- Output Voltage ; 0 ~ 60V

- Output Current ; 0 ~ 30A

- Ambient temp. ; -30℃ ~ +60℃- Electronic adjustment (wearfree)

- Control via analogue signals or field bus system

- High efficiency


Hybrid System for Cathodic Protection forComplex Concrete Structures

SACRIFICIALANODES

ALOA Aluminium Anodes

ZINCOA Zinc Anodes

MAGNOA Magnesium Anodes

ICCP SystemEngineering Service

Installations & constructionInstrum

entsSA

CRIFICIAL A

NODES

Contrary to common belief, concrete itself is a complex composite material. It has low strength when loaded in tension and

hence it is common practice to reinforce concrete with steel, for improved tensile mechanical properties.

Concrete structures such as bridges, buildings, elevated highways, tunnels, parking garages, offshore oil platforms, piers and

dam walls all contain reinforcing steel (rebar). The principal cause of degradation of steel reinforced structures is corrosion

damage to the rebar embedded in the concrete.

The two most common causes of reinforcement corrosion are

- localized breakdown of the passive film on the steel by chloride ions.

- general breakdown of passivity by neutralization of the concrete, predominantly by reaction with atmospheric carbon dioxide.

Sound concrete is an ideal environment for steel but the increased use of deicing salts and the increased concentration of carbon

dioxide in modern environments principally due to industrial pollution, has resulted in corrosion of the rebar becoming the primary

cause of failure of this material. The scale of this problem has reached alarming proportions in various parts of the world.

Introduction to Corrosion in Concrete

When a concrete structure is often exposed to deicing salts, salt splashes, salt spray, or seawater, chloride ions from these will

slowly penetrate into the concrete, mostly through the pores in the hydrated cement paste. The chloride ions will eventually

reach the steel and then accumulate to beyond a certain concentration level, at which the protective film is destroyed and the

steel begins to corrode, when oxygen and moisture are present in the steel-concrete interface.

Hybrid Cathodic Protection System-using titanium mesh anodes -provides the ultimate and permanent solution to stopping

reinforcing steel corrosion in the structures, as long as associated rectifiers and electrical wiring are properly maintained.

Electrochemical chloride extraction provides an alternative rehabilitation method for stopping steel corrosion in contaminated

concrete, albeit less permanently. This alternative has the advantage of having no rectifier or wiring to maintain after the

treatment.

why Hybrid Cathodic Protection System


ALOA Aluminium Anodes



entsSA

CRIFICIAL A

NODES

ALOA Aluminium anodes are available in a wide variety of configuration in low-iron, high purity, high

efficiency aluminium alloys. ALOA offered by Wilson Walton Korea are designed for optimum performance

under a variety of environmental condition and temperature ranges, and provide maximum performance in

sea water and brackish environments.

Application for ALOA aluminium anodes include ship hulls, ballast tanks, offshore structures, pilings,

submerged pipelines, piers and other similar applications in a variety of sizes, weights and configurations.

Custom fabricated anodes are also available on your demand. Please contact WWK sales representative

to help you with anode selection.

Anode Cores - typically ALOA is cast with steel core, the type of which include flat bars, rods, pipe cores,

threaded rods,eyebolts and other customized cores

Installation - ALOA is able to be installed in a number of

different methods. Typical method is to weld or to bolt the anode

core directly to the surface of a struture

However various methods are available depending on the

application.

Lifetime - Anode lifetimeis depends on the current output of

the anode. The more current output, The shorter lifetime.

Therefore, it is very important to consider various factors as

below when selecting the anode types

Factors : Electrolyte resistivity, Surface area to be protected,

Coating intergrity, temperature and design life

ALOA Chemical Composition and Electrochemical Properties

weight (%) weight(%)

0.10 max 0.07 max

0.10 max 0.10 max

0.006 max 0.003 max

2.0 ~ 6.0 2.0 ~ 6.0

0.01 ~ 0.05 0.015 ~ 0.025

0.025 max 0.025 max

0.02 max 0.02 max

Reminder Reminder

Element

Iron (Fe)

Silicon (Si)

Copper (Cu)

Zinc (Zn)

Indium (In)

Titanium (Ti)

Others (each)

Aluminium (Al)

ChemicalComposition Aloa Aloa-DP cold water

below 6℃

Electrochemical Properties

Nominal Current Capacity

Open Circuit Protential

2500 amp-hr/kg 2500 amp-hr/kg

-1.10 Volts -1.10 Volts

HAM-11 25 x 100 x 200 1.07 75 Bolted-on

HAM-15 30 x 100 x 200 1.45 110 Bolted-on

HAM-18 40 x 100 x 200 1.79 110 Bolted-on

HAM-25 20 x 150 x 200 2.46 160 Bolted-on

HAM-33 30 x 150 x 300 3.31 160 Bolted-on

HAM-46 40 x 150 x 300 4.59 160 Bolted-on

HAM-55 50 x 150 x 300 5.50 160 Bolted-on

HAM-61 40 x 200 x 300 6.10 160 Bolted-on

HAM-83 50 x 200 x 300 8.30 160 Bolted-on

HAM-93 60 x 150 x 400 9.30 180 Bolted-on

TypeNominal Dimension

H x w x L(mm)gross weight

(kg)Core distance(mm) Type of installation

HAM-Type

HAR-40 45 x 130 x 360 4.00 160 Bolted-on / Weld-on









HAR-Type

HAH-19 30 x 100 x 200 1.79 4.5T x 32B x 225L Weld-on






HAH-Type

■Custom fabricated anodes are also available on your demand. Please contact WWK sales representative to help


ALOA Anodes for HuLL


ALOA ALUMINIUM ANODES



entsSA

CRIFICIAL A

NODES

ALOA Anodes for ballast Tank

HAw(Weld-on Type) HAb(U-Bolted Type)

HAW(HAB)-50 50 x 50 x 500 4.2/3.9 9t (Ø13) x 25 Weld-on(Bolted-on)



HAW(HAB)-60 60 x 60 x500 6.3/5.7 9t (Ø13) x 25 Weld-on(Bolted-on)






D x H x L(mm)Nominal weight

(kg)Core Size(mm)

HAw(Weld-on Type) / HAb(U-Bolted Type)

HAC(Clamp Type)


Type of installation

HAC-50 50 x 50 x 500 3.9 9t x 25 Clamped -on



HAC-60 60 x 60 x500 6.0 9t x 25 Clamped -on







(kg)Core Size(mm)



ALOA Anodes for Offshore Structure

HAFI-51 60 X 146 X 1,500 38.2 4 ~ 5 External

HAFI-101 84 X 200 X 1,490 70.8 8 ~ 10 External

HAFI-102 61 X 146 X 1,500 73.3 8 ~ 10 External

HAFI-103 85 X 200 X 1,490 117.3 8 ~ 10 External


H x w x L(mm)Nominal weight

(kg)Application

Lifetime(Year)Application

HAFI


HAFA-51 60 X 146 X 1,500 30.3 4 ~ 5 Internal

HAFA-52 84 X 200 X 1,490 40.2 4 ~ 5 Internal

HAFA-101 61 X 146 X 1,500 64.5 8 ~ 10 Internal

HAFA-102 85 X 200 X 1,490 70.8 8 ~ 10 Internal

HAFA-103 (70+90) X 80 X 700 80.4 8 ~ 10 Internal



(kg)Application

Lifetime(Year)Application

HAFA




(kg)Application

Lifetime(Year)

HAFO


HAFO-101 210 x 210 x 1,500 168 10

HAFO102 200 x 190 x 2,400 225 10

HAFO-201 310 x 310 x 1,500 375 20

HAFO-202 300 x 290 x 2,400 518 20

HAFO-203 290 x 280 x 3,300 640 20

ALOA ALUMINIUM ANODES


ZINCOA ZINC ANODES



entsSA

CRIFICIAL A

NODES

ALOA Anodes for Pier / Piling

HAP-10S (140+180) x160x500 40 1.75

HAP-10A (125+155) x130x800 43.9 2.0

HAP-10B (125+155) x130x1,000 55.2 2.5

HAP-10C (110+140) x130x1,350 67.3 3.0

HAP-10D (110+140) x130x1,500 74.1 3.3

HAP-15A (190+230 ) x 195 x 520 64.8 2.0

HAP-15B (140+180 ) x 160 x 1,050 80.5 2.5

HAP-15C (140+180 ) x 160 x 1,250 94.8 3.0

HAP-20S (210+270 ) x 235 x 500 83.9 2.0

HAP-20A (190+230 ) x 195 x 850 102.4 2.5

HAP-20B (190+230 ) x 195 x 1,000 119.5 2.9

HAP-20C (190+230 ) x 195 x 1,030 122.9 3.0

TypeNominal Dimension(b1 + b2 ) x H x L (mm)

Nominal weight(kg)

Average Current(A)

STANDARD for Ministry of Land Transport and Maritime Affairs, korea

PORT-A1 (150+170 ) x 145 x 335 Min 21 Min 2 6 x 50 x (335+760) Min 23 1.0



PORT-A4 (115+155 ) x 120 x 1,195 Min 52 Min 6 9 x 50 x (1195+760) Min 58 2.5

PORT-A5 (120+155 ) x 110 x 1,555 Min 63 Min 8 9 x 50 x (1155+760) Min 71 3.0

PORT-B1 (200+235 ) x 230 x 300 Min 41 Min 4 9 x 50 x (300+900) Min 45 1.0



PORT-B4 (170+200 ) x 190 x 1,035 Min 99 Min 6 9 x 50 x (1035+900) Min 105 2.5

PORT-B5 (165+195 ) x 180 x 1,340 Min 118 Min 7 9 x 50 x (1340+900) Min 125 3.0

TypeDimension

(b1 + b2 ) x H x L (mm)Net weight

(kg) weight (kg) Dimension T x w X L

Standardweight(kg)

AverageCurrent(A)

Terminal



Installation of Aluminium Anode for steel pile

ZINCOA Zinc anodes offered by Wilson Walton Korea are produced containing in excess of 99% pure

zinc and designed to protect steel structures in sea water or brackish water, and it conform to MIL-A-

18001K.

ZINCOA operate at 95% efficiency in sea water and are limited to temperature exposures up to

approximately 49̊ C.

Application for ZINCOA zinc anodes include ship hulls, ballast tanks, offshore structures, pilings,

submerged Pipelines, piers and other similar applications in a variety of sizes, weights and

configurations. Custom fabricated anodes are also available on your demand. Please contact WWK

sales representative to help you with anode selection.

Anode Cores - typically ZINCOA is cast with steel core, the type of which include flat bars, rods, pipe

cores, threaded rods,eyebolts and other customized cores

Installation - ZINCOA is able to be installed in a number of

different methods. Typical method is to weld or to bolt the

anode core directly to the surface of a struture

However various methods are available depending on the

application.

Lifetime - ZINCOA lifetime is depends on the current

output of the anode. The more current output, The shorter

lifetime. Therefore, it is very important to consider various

factors as below when selecting the anode types

Factors : Electrolyte resistivity, Surface area to be protected,

Coating intergrity, temperature and design life

ZINCOA Chemical Composition and Electrochemical PropertiesZinc (MIL-A-18001-k)

weight (%)

0.005 max

0.006 max

0.005 max

0.1 ~ 0.5

0.025 ~ 0.070

0.10 max

Reminder

Element

Iron (Fe)

Lead (Pb)

Copper (Cu)

Aluminium (Al)

Cadmium (Cd)

Others (total)

Zinc (Zn)

ChemicalComposition

ZINCOA

780 amp-hr/kg

-1.05 Volts

Electrochemical Properties

Nominal Current Capacity

Open Circuit Potential


ZINCOA ZINC ANODES



entsSA

CRIFICIAL A

NODES

HZM-25 20 x 100 x 200 2.5 110 Bolted-on

HZM-36 30 x 100 x 200 3.6 110 Bolted-on

HZM-59 20 x 150 x 300 5.9 160 Bolted-on

HZM-72 25 x 150 x 300 7.2 160 Bolted-on

HZM-83 30 x 150 x 300 8.3 160 Bolted-on

HZM-110 40 x 150 x 300 11.0 160 Bolted-on

HZM-140 50 x 150 x 300 14.0 160 Bolted-on

HZM-150 40 x 200 x 300 15.0 160 Bolted-on

HZM-207 50 x 200 x 300 20.7 160 Bolted-on

HZM-240 60 x 150 x 400 24.0 180 Bolted-on




HZM-Type


HZR-96 45 x 130 x 360 9.6 160 Bolted-on / Weld-on










HZR-Type

HZH-43 30 x 100 x 200 4.30 4.5T x 32B x 225L Weld-on






HZH-Type


HZW(HZB)-50 50 x 50 x 500 9.7/9.2 9t (Ø16) x 25 Weld-on(Bolted-on)



HZW(HZB)-60 60 x 60 x500 13.6/13.2 9t (Ø16) x 25 Weld-on(Bolted-on)







(kg)Core Size(mm)

HZw(Weld-on Type) / HZb(U-Bolted Type)

HZC(Clamp Type)



HZC-50 50 x 50 x 500 9.4 9T x 25 Clamped -on



HZC-60 60 x 60 x500 13.3 9T x 25 Clamped -on


HZC-70 70 x 70 x 500 18.0 9t(Ø16) x 32 Clamped -on





(kg)Core Size(mm)



HZw(Weld-on Type) HZb(U-Bolted Type)

ZINCOA Anodes for HuLL ZINCOA Anodes for ballast Tank


D L

MAGNOA MAGNESIUM ANODES

MAGNOA



entsSA

CRIFICIAL A

NODES

Magnesium AnodesIn cathodic protection, the most widely used sacrificial anodes are magnesium anodes. When high potential magnesium

anodes are required for high current applications. Magnesium has an equilibrium potential of -2.61V vs. SCE and

therefore theoretically can provide a very large driving voltage. However, practical measurements indicate relatively

more noble corrosion potentials probably due to the electrochemical inefficiency of the metal as a sacrificial anode. The

low efficiency (50-60%) has been attributed to hydrogen evolution at local cathodes and complex surface chemistry at

the anode surface.

The theoretical current capacity for a magnesium anode is approximately 2200 Ah kg-1 whereas actual measured

values are in the range of 1200 Ah kg-1.

Alloying elements (Al, Zn, Mn) have been added to reduce the rapid activation of magnesium. Magnesium alloy anodes

because of their large driving voltage are principally used in soils, water tanks, and similar high resistance media. In high

conductivity environments, such as seawater, magnesium anodes are generally not recommended because of risk of

overprotection and high consumption rate.

MAgNOAWe offers the MAGNOA high potential magnesium anode.

The MAGNOA anode is manufactured from high quality, primary magnesium

under strict, state of the art production techniques, anode chemistry, testing

and certification.

Production techniques and chemical composition insure that the MAGNOA

produces a driving potential that exceeds other sacrificial anodes, such as

standard potential magnesium, aluminum or zinc. As a result, the MAGNOA

can produce more protective DC current for cathodic protection purposes.

As normally required, the anode is packaged in a cloth bag with a prepared

backfill mixture that works to maintain moisture around the anode and lowers

the anode to earth resistance.

Chemical Composition(%)

Applications

- Hulls of ships, barges, tugs and boats

- Ballast tanks of ore carriers and similar vessels

- Bulkheads

- Water storage tanks

- Piers and pilings

- Pipelines

- Heat exchangers

- Traveling screens

MAgNOA Anode Dimensions

Aluminum

Manganese

Zinc

Silicon

Copper

Nickel

iron

other

Magnesium

Element H - Grade B

5.3~6.7

0.15% min

2.5~3.5

0.30% max

0.05% max

0.003% max

0.003% max

0.30% max

Remainder

※Standard inventory sizes. Other special anode configurations are available on your demand.

Please contact Wilson Walton Korea for details.

※Packaged weights and dimensions are approximate and can vary slightly.

TypeNo.

Weightlbkg

Weightlbkg

Dimension(Bare Anode)

Dimension(Backfilled)

A B L

Inchesmillimeters

Inchesmillimeters

3D 3

5D 3

9D 2

14D 2

17D2

32D 5

1.47 R

9R

3 3/495.3

3 3/495.3

2 3/469.85

2 3/469.85

2 3/469.85

5 1/2139.7

0.79Ø20Ø

2.49Ø63.25Ø

5127

7 1/2190.5

21 1/2546.1

33838.2

39 5/81,006.4

19 7/8504.8

39.371,000

28711.2

31.36

52.27

94.08

146.35

177.71

3214.51

1.470.66

94.08

6152.4

6152.4

6152.4

6152.4

6152.4

8203.2

7.87200

5127

10254.0

12304.8

25635.0

37939.8

441,117.6

25 3/4654.0

47.241,200

33838.2

125.44

177.71

3515.87

5022.68

6027.22

6629.9

121.2555

2812.7

3 3/495.3

3 3/495.3

376.2

376.2

376.2

5 3/4146.0

-

-

Engineering Service

■ Current Requirement Testing

■ Pipe & Cable Locating

■ Electrical Short Locating

■ Electrical Continuity, Isolation & Resistance Testing

■ Potential Profiles

■ Coating Holiday Testing

■ Rectifier Monitoring

■ Soil & water Analysis

■ Stray Current & Interference Testing

■ underground Metallic Pipeline Current Mapping

■ underwater Surveys

■ Rectifier Troubleshooting

■ Cathodic Protection System Troubleshooting

■ Long Term Data Acquisition

■ Cathodic Protection System Maintenance

FIELD SERVICES


ICCP SystemEN

GINEERIN

G SERVICEInstallations & construction

Instruments

Sacrificial Anodes

DESIGN & ANALYSIS SERVICES■ Cathodic Protection Drawings & Specifications ■ Economic Feasibility & budget Estimates ■ Failure Analysis ■ Computer & Instrument grounding Designs ■ Research & Development

wilson walton korea has been providing a comprehensive range of cathodic protection engineering

and installation services starting in 1999.

■ Engineering services include system design, technical recommendations, soil analysis, water analysis, annual and

close interval potential surveys, system checkouts, troubleshooting, maintenance, personnel training, recommendations

for repair and cost estimates. Included in our array of installation services are deep and conventional anode installations,

sacrificial anode installations, tank system installations, abandonments, and system relocation and repair.

■ Engineering project types include oil and gas production, all submerged pipelines, water and waste water facilities,

storage facilities, refining operations, nuclear and conventional power plants, offshore structures, marine facilities,

municipal and government facilities.

BluetoothCommunication

PDA screen touch operation

PDA

Push switch

GPS Antenna

Measure cable

Comparing P/S potential(A) with polarization potential(B)measured with polarization potential probe at the area

beneath subway stray currentTime Period

(May be seconds, minutes, hours or days)


Installation&Construction


INSTALLATIONS & CONSTRUCTION INSTRU

MEN

TSSacrificial Anodes

Instruments

■ Conventional Anode groundbed Installation

■ Fresh water Tank Systems

■ Oil Field vessel Systems

■ groundbed Relocation & Repair

■ Sacrificial Anode Systems

CIPS/DCVG SURVEY EQUIPMENT● DCVG● CIPS● Typical potential measurement and data storage

ELECTRODE FOR POLARIZED POTENTIALMEASUREMENT● For measurement of IR-free, polarized potential

of underground structures

SENSORS AND ELECTRODES FOR CORROSIONMONITORING● Electrical resistance type corrosion sensor● LPR sensor● Reference electrodes● Special corrosion probes for special purposes

THIN-FILM ER SENSOR FOR CORROSION RATEMEASUREMENT● Using the advanced thin-film type ER sensor,

it is possible to measure the relatively low corrosion rate of metal (the resolution is below 0.001 mm/y) exposed to mildly corrosive environments or cathodically protected.

SYNCHRONIZABLE GPS CURRENT INTERRUPTER● Synchronized using time provided by GPS satellites● Can be attached to the existing rectifiers and

assembled within new rectifiers● By installing this equipment to existing rectifiers,

you can monitor and control the output current /voltage of the rectifier in the office

● Can interrupt the output currents of rectifiers simultaneously within 10 ms.

DATA LOGGER FOR ON-LINE REMOTE MONITORING OF CP POTENTIAL● Small size, easy field application● Can be used over one year in field without other power● Data transmission by various wireless network including

commercial mobile telecommunication network, RF, Zigbeecommunication, etc.

● Primary lithium battery is used● Management software is user-friendly and powerful

HSNA HWASEUNG NETWORKS AMERICE CORP. 485 Seventh Avenue Suite 309 New York, NY 10018, U.S.A.

Tel. 1-212-868-8188 Fax. 1-212-868-8288

HSI AuTO HSI AUTOMOTIVES LTD. S. No.73, Mevalur Kuppam, “A” Block, 100 Thandalam Post. Sriperumbudur TK, Kanchipuram DT,

Tamil Nadu 602 105, India Tel. 91-44-2681-0001~5 Fax. 91-44-2681-1899

HST HECHENG VEHICLE PARTS [TAICANG] CO.,LTD. #105.Shanghai East RD.Taicang,Jiangsu,China

Tel. 86-512-5356-6596 Fax. 86-512-5356-6585

HSb BEIJING HECHENG R&A VEHICLE PARTS CO.,LTD. #N2-3, Xinggu, Industrial Development Zone, Pinggu, Beijing, China

Tel. 86-10-8998-6221 Fax. 86-10-8998-6002

HSLS HSLS RUBBER INDUSTRIES SDN.BHD. 5¼Miles, Jalan Jelebu, 70100 Seremban, Negeri Semblian, Malaysia

Tel. 606-767-9580 Fax. 606-767-4079

HwASEuNg HWASEUNG [SHANGHAI] INT'L TRADE CO.,LTD. Unit 901-903, New Town No. 83 Loushanguan Road, Shanghai, China

SHANgHAI Tel. 86-21-6145-3268 Fax. 86-21-6145-3265

HSvN HWASEUNG VIETNAM NETWORKS CO.,LTD. 4th Floor, Green Star Office Building, 70 Pham Ngoc Thach St.,

Ward 6, Dist 3., Hochiminh City, Vietnam Tel. 84-8-820-7750 Fax. 84-8-820-7748

Frankfurt Office Mergenthaler Allee 79-81, 65760 Eschborn, Germany Tel. 49-6196-470500~4 Fax. 49-6196-470505

Worldwide Branch of Hwaseung

WILSON WALTON Global Service Network

great britain Office Corrpro Companies Europe Limited, Tel. 44-1642-614106 Fax. 44-1642-614100

Norway Agent A.K. Aagesen & Partners AS Tel. 47-380-23076 Fax. 47-380-20986

Sweden Agent Ciserv AB, Tel. 46-31-657400 Fax. 46-31-227225

Filand Agent KMS Engineering OY, Tel. 358-9-727-986 90, Fax. 358-9-727-986-91

Holland Agent WRS Marine Inspections and Services, Tel. 31-1804-10499, Fax. 31-1804-11339

Iceland Agent Stalvelar HF, Tel. 354-554-5683, Fax. 354-564-2315

Spain Agent Wilson Walton International SAE, Tel. 341-616-4443 Fax. 341-616-5301

Cyprus Agent Seatec Marine Services Ltd. Tel. 357-255-62980 Fax. 57-255-61504

Croatia Agent Branko Matic(dipl.ing), Tel. 385-52-211031 Fax. 385-52-578038

Malta Agent G F Betts, Tel /Fax. 356-212-30301

Turkey Agent Gepa Ship Marketing Industry & Trade Co.,Ltd. Tel. 90-216-392-9396 Fax. 90-216-392-7758

greece Agent Marpo Ltd. Tel. 301-411-0692 Fax. 301-411-6685

Japan Agent Meiyo Electric Co.,Ltd. Tel. 81-543-452213 Fax. 81-543-452215

brazil Agent Humphries Importacao Ltd. Tel. 55-21-2544-3092 Fax. 55-21-2544-3587

Global Sales Network

STX(MuMbAI) CORPORATION NO.34 3rd Floor MakerChamber Ⅵ Nariman

Point, Mumbai 400 021, India

Tel. 91-22-6610-2256/6 Fax. 91-(0)22-6610-2277

STX(JAkARTA) CORPORATION Plazza Bapindo Mandiri Tower 23rd Floor, JI, JEND

Sudirman. Kav. 54-55, Jakarta Selatan 12190

Tel. 62-21-527-8088 Fax. 62-21-527-8089

STX(JAPAN) CORPORATION 5th Floor, Toranoman1-chome Mori Bldg., 1-19-5

Toranomon, Minato-ku, Tokyo, Japan, 105-0001

Tel. 81-3-5510-1311-3 Fax. 81-3-5510-1324

STX(MIDDLE EAST) CORPORATION PO Box No.262099 LOB#19-1907

Jebel Ali Free Zone, Dubai.U.A.E

Tel. 971-4-886-5154 Fax. 971-4-886-5982

STX(HANOI) CORPORATION 5th Floor, Daeha Business Center 360 KIm Ma St.

Ba Dinh Dist, Hanoi, Vitenam

Tel. 84-4-771-0134 Fax. 84-4-273-0551

STX(kOREA) CORPORATION 17F, STX Panocean Bldg., 83-5, 4-Ga,

Jungang-Dongm Jung-Ku, Busan, 600-725, Korea

Tel. 82-51-461-2124 Fax. 82-51-461-1590

bELLgIuM OFFICE Klevenberg Shipping Center BV

Haven 403-Industrieweg 11, B-2030 Antwerp

Tel. 32-(0)3-540-12-59 Fax. 32-(0)3-540-12-26

NETHERLAND OFFICE Euro-Kytex Engineering BV

Innsbruckweg 17, 3047 AG Rotterdam, The Netherlands

Tel. 31-10-2621-222 Fax. 31-10-2621-609

CATHODIC PROTECTION

147-1 Gyo-dong, Yangsan-City, Gyeongnam, 626-220

Tel. +82-55-370-3380~6 Fax. +82-55-389-0153

E-mail. [email protected] http://www.wwckorea.com

Wilson Walton Korea

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