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  • Electro Protection Services India Private Limited

    Chennai, Tamil Nadu

  • Year of Establishment: 1982
    IndiaMART Member Since: 2008
    Products [16]
    Phone: +(91)-(44)-22780677

Products

Impressed Current Anodes

Impressed Current Anodes

MMO Titanium Anodes

  • Wire Anode
  • Ribbon Anode
  • Expanded Mesh Anode
  • Probe Anode
  • Tubular Anode
  • Solid Rod Anode

 

Platinised Titanium Anodes

  • Probe Anode
  • Wire Anode

 

High Silicon Anodes

  • Double Headed Anode
  • Single Headed Anode
  • Tubular Anode
  • Prepacked Anode

 

Water Heater Anodes

Water Heater Anodes

Anodes Rods are designed to protected the tank of a water heater by reduceing internal corrosion. Periodic replacement of the anode rod prolongs the tank life. the anode rod includes a hex head for easy installation.

Anode Rods attract corrosive elements in water, so they attack the anode rod rather than the interior of your water heater's tank. Simply remove the plastic drain plug and insert the anode rod. Atwood Anode Rod is made of magnesium; Suburban Anode Rod is made of aluminum. When replacement is necessary, unscrew the old one and insert the new one.

 

Chemical Composition

 

 

  Aluminium

  2.5 - 3.5%

  Manganese

  0.2 - 1%

  Zinc

  0.7 - 1.3%

  Silicon

  0.05%

  Copper0.01%

  0.01%

  Nickel

  0.001%

  Iron

  0.002%

  Magnesium

  balance

 

 

Water Heater Anodes Welded Screw - 0n Caps

 

 

Anode Diameter(in)

  Internal Thread

  External Thread

  A (in)

  B (in)

  C (in)

  D (in)

  0.500

  1/4 - 18 NPT

  3/4 - 14 NPT

  1.060

  0.81

  0.19

  0.63

  0.675, O.700, 0.75

Mmo Coated Titanium Anodes

Mmo Coated Titanium Anodes

Mixed metal oxide (MMO) coated titanium anodes comprise a family of electrodes made from commercially pure titanium to which an electro catalytic layer is applied by thermal decomposition. The electro catalytic layers is composed of a mixture of noble and valve metal oxides, the selection of which and their ratio is dictated by the electrolyte conditions in which the anode is immersed.

 

These anodes can be used to advantage in aggressive solutions or other difficult applications.

 

The manufacturing route of MMO coated anodes varies depending on the composition of the electro catalytic layer. In general the route involves multiple applications by thermal decomposition of mixtures of noble metals as their oxides.

 

A variety of shapes and forms are available including Tubular, Bar, Rod, Sheet, Wire, Disc and Mesh. Individually fabricated anodes are available to suit customers’ specific requirements.

 

MMO coatings can be specifically formulated to withstand the simultaneous generation of oxygen and chlorine, which occurs in dilute sea water or fresh water containing low chloride levels. MMO coated anodes are also durable in highly acidic media and are often used in deep well ground beds.

 

The advantages using mixed metal oxide titanium are,

  • Improved resistance for oxygen/chlorine mixed evolution
  • Range of compositions for various duties available
  • Improved resistance in acidic media
  • Low wear rate

 

For cathodic protection applications it is anticipated that the Faradi

Zinc Anodes

Zinc Anodes

Zinc anodes has been used as a sacrificial anode material in seawater since 1824, when Sir Humphery Davy used zinc blocks to prevent corrosion of the copper cladding on the hulls of British warships.

Modern zinc anodes used for cathodic protection are cast from high purity zinc (99.995 %) alloyed with aluminium and silicon to combat impurities and cadmium to give uniform dissolution with loose dispersible corrosion products.

The most widely used specification for zinc anodes is US Mil Spec 18001J are the most widely used, for cathodic protection.

 

Composition

 

 

Elements

Standard (Wt. %)

High purity Wt. %

  Copper

  0.005 max

  0.002 max

  Iron

  0.005 max

  0.0014 max

  Cadmium

  0.025 - 0.07

  0.003 max

  Lead

  0.006 max

  0.003 max

  Others

  0.10 max

  ------

  Zinc

  Remainder

  Remainder

Pre-Design Surveys

Pre-Design Surveys

The unit having necessary infrastructural facilities for designing the cathodic protection system. Pre and post construction surveys can be made with cathodic protection specialist personals that are qualified to carry out a variety of site surveys / investigations.

 

In the past it has designed system for Ennore Thermal Power Station–chennai, IOCL–KAPI project, G.N.F.C–Gujarat, Tuticorin Alkali chemicals & fertilizers Ltd–Tuticorin, The fertilizers & chemicals travancore Ltd–Kerala, Bharath Petroleum Corporation Limited–cochin, the Andhra Petrochemicals Ltd–Visakhapatnam. IOCL–Emakulam, Biecco Lawire Ltd, Calcutta.            

 

  • Soil resistivity survey
  • Soil analysis
  • Potential and line current surveys
  • Holiday inspection of pipe coatings and cable insulation tests
  • Interaction testing on foreign structures
  • Current drainage surveys
  • Ground bed location

 

Magnesium Anodes

Magnesium Anodes

Magnesium anodes are most economical when used on land where high driving potentials make them suitable for high resistivity soils and in brackish water and estuarine locations where the combination of salt and fresh water also gives high resistivities.

EPS offer magnesium anodes in two grades.

·        Standard

·        High potential

 

Composition and characteristics

 

 

Elements

Standard (Wt. %)

High potential (Wt. %)

  Aluminium

  5.3 – 6.7 %

  0.01 max

  Zinc

  2.5 – 3.5 %

  0.03 max

  Manganese

  0.15 % min

  0.5 - 1.3

  Copper

  0.02 % max

  0.02 max

  Silicon

  0.1 % max

  0.05 max

  Iron

  0.003 % max

&nb

High Silicon Anodes

High Silicon Iron Anodes are among the most common impressed current anodes used in groundbed construction. The high corrosion resistance of silicon iron and silicon chromium iron alloys effectively ensures lifetimes in excess of 20 years.

Silicon Iron Anodes can be used for onshore, seawater and freshwater applications. The most common areas of use are listed below:

Land Pipelines (u/g):

The anodes are installed in horizontal, vertical or deepwell groundbeds.

Jetties & Quay Walls:

The anodes are installed in horizontally in sea beds muds or anchored to the sea bed.

Sea Outfalls:

The anodes are installed in horizontal or vertical groundbeds on the foreshores.

Water Storage Tanks (Internal):

The anodes are suspended from the tank roof.

Water Storage Tanks (External):

The anodes are installed in horizontal vertical or deep groundbeds around tank.

The High Silicon Anodes manufactured by us two types.

  • Single Headed
  • Double Headed

Composition

The standard chemical compositions for the high silicon anodes with and without chromium are given below:

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High Silicon Chromium Anodes

The High silicon iron anodes without chromium are for use in neutral soils & freshwater environments, content are for use in aggressive acidic 0r alkaline soils and seawater environments.

The consumption rate of High Silicon Chrome Cast Iron anodes has been found to be between 0.2 and 1.2 pounds per ampere-year. For anodes of the same chemistry and microstructure, variance in consumption is primarily due to the chemical and physical characteristics of the anode environment.

The consumption rate does not appear to be significantly affected by current density (amperes per unit area of anode surface). The use of coke breeze around the anode in soil ground beds will tend to lower the consumption rate. A generally accepted design guideline for anodes buried in coke breeze is 0.7 pounds per amp-year.

The High Silicon Chromium Anodes manufactured by two types:

  • Single Headed
  • Double Headed.

Platinized Niobium Anodes

  • Platinized Niobium Anodes are designed for usage in all types of aqueous storage and process equipments.
  • It is applicable for Electroplating, Cathodic Protection, Electro Dialysis, Electro Winning Process, Electrolytic Production of Sodium Hypo Chlorite, Seawater Application, and Water Treatment.
  • The Niobium substrate is resistant to corrosion, the anode remains dimensionally stable over its operating life and consumption of the Platinum costing is extremely low (40 to 80 mg / amp-yr).

Because of its low consumption rate, the anode may be employed in a protection system to achieve a design life of 6 years and above. Platinized Niobium Anode is highly conductive and can be operated at a maximum current density of 100 amps/ft2. The anode is also Very light weight, flexible and strong. Platinized Niobium Anodes are designed for use in all types of aqueous storage and process equipment. The anode has proven to operate effectively in fr

Anodes

Wood Alloy Anodes

  • Bismuth : 50percent
  • Lead : 25percent
  • Tin : 12.5percent
  • Cadmlum : 12.5percent

Lead Bismuth Alloy Anodes

  • Lead : 87%
  • Bismuth : 13%.

Lead Alloy Anodes

  • Anodes made of Lead Alloys are used in the electro winning and plating of metals such as manganese, copper, nickel, and zinc.
  • Rolled lead-calcium-tin  and lead-silver alloys are the preferred anode materials in these applications, because of their high resistance to corrosion in the sulfuric acid used in electrolytic solutions.
  • Lead Anodes also have high resistance to corrosion by seawater, making them economical to use in systems for the cathodic protection of ships and offshore rigs.

Lead, alloyed with 1-2 % silver and 6 % antimony is also used as an impressed current anode for seawater applications and operates at up to 24 V DC. The alloy naturally forms an insulating film of lead chloride when immersed in seawater, however this can be converted to a conducting layer of lead peroxide by operating the anodes at carefully controlled current densities.

Once the peroxide layer has formed it is capable of operating at current densities up to 200 A/m2.

Alloys containing 0.1 % silver and 0.01 % Tellurium form efficient anodes when small platinum bi-electrodes are inserted into the surface.The electrodes conduct the initial current and cause the peroxide layer to be formed at much higher current densities than with the conventional alloy. They a

Platinized Titanium Anodes

  • Platinized titanium manufactured by a special process in which the titanium substrate is modified prior to plating. This process confers almost total freedom from interface degradation and premature loss by undermining.
  • The titanium surface is modified to improve adhesion of platinum and to significantly improve uniformity of coating thickness. A further benefit is reduction in coating porosity imparting greater acid resistance to the anode.
  • The manufacturing route includes application by thermal decomposition of noble metals followed by electroplating to produce a dense wear-resistant layer of platinum. A variety of shapes and forms are available including bar, rod, sheet and mesh. Individually fabricated anodes are available to suit customers’ special requirements.
  • Platinized titanium is used extensively in cathodic protection particularly for sea water intake structures and heat exchangers where its resistance to abrasion is superior to most other anode coatings.

The advantages using platinized titanium are:

  • High levels of adhesion of the precious metal coating
  • Improved resistance to acid attack
  • Resistance to interface degradation by deposits
  • Significantly longer life

Practical consumption rates for cathodic protection applications over a wide range of current densities are uniform and proportional to the current passed. However, individual conditions of operation can significantly influence wear rate. Under normal oceanic conditions, excluding low temperatures, wear rates correspond to 1 and 2 micrograms of platinum per ampere hour.

Aluminum Anodes

Aluminum alloy anodes can be used for the protection of storage tanks and are frequently installed on ship hulls and jetties. They also have a particular use in the protection of sub sea pipelines, oil rings and semi submersibles.

The electrochemical performance of aluminum makes it an attractive galvanic anode material, especially in low resistivity applications such as seawater. Compared to magnesium, aluminum's lower driving potential and high current capacity per pound make it an excellent choice for long life saline cathodic protection systems.

Composition And Characteristics:

  Iron

  0.13% max

  Silicon

  0.08 -0.2 %

  Copper

  0.006 % max

  Zinc

  2 – 6 %

  Indium

  0.01 – 0.02 %

  Others

  0.02 max

  Aluminium

  Remainder

  Potential Ag/AgCl

  -1.05V (min)

  Anode Capacity Ah/Kg

  2550 (mini)

In addition to the standard compositions mentioned above, EPSIPL also manufactured to other compositions to suit the requirements of various sites and structures.

Types Of Aluminium Anodes

  Aluminum Hull Anodes

  Aluminium Ballast Tank Anodes

  Aluminium Pier & Piling Anodes

Tank Anodes

Above ground storage tanks in hydrocarbon process plants which are located in aggressive soil at costal areas, are at a risk from bottom plate corrosion, due to formation of a galvanic corrosion cell between the tank bottom and the soil. This galvanic corrosion cell formation effect is more predominant if the content of the tank is stored at high temperature.

At such situations traditional methods of passive barrier protection systems such as sand bitumen tank foundation pad or soil side paint / coating of the bottom plates cannot prevent corrosion.

Tank leakage due to corrosion poses significant treat for the safety of the plant equipment and personnel due to possibility of occurrences of the fire hazards, if the tank content is hazardous material. The replacement of the bottom plate due to corrosion damage is also found to be costly.

Suitable designed cathodic production system using either close or remote anode ground bed supplemented with soil side paint / coating of bottom plate is the appropriate protective measure to ensure the integrity of the bottom plates against soil side corrosion for a longer period.

Aluminium tank anodes

Aluminium tank anodes are used to complement the coating at areas of exposed steel prolonging the life of the coating and structure. Hydrogen is evolved from aluminium anodes and termite sparking may occur when light alloys impact on rusty steel.

Engineering Design Of CP System

Based on the technical and commercial viabilities of cathodic protection inhouse design facilities are available for all types of cathodic protection systems. The design package usually consist of the following components:

  • Scheme an optimum Solution
  • Sizing up Design Methodology
  • Design Criteria
  • Description of the system
  • Design Calculations
  • Bill of materials
  • Materials specification
  • Reference Drawings.

Other products & services we offer
Aluminium Anodes

 
 
 
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