This is a silver/silver chloride reference electrode with dual compartments separating the reference electrolyte and bridge electrolyte. The electrode is supplied with electrolyte filling, and electrolytes of desired concentrations can also be re-filled easily.

The Ag/AgCl reference electrodes should not be exposed in certain chemicals that form a precipitate of some silver compounds. For example, it cannot be used in the basic medium. In the presence of [OH-] ions, it forms Ag2O or AgOH and gives rise to a mixed Ag/AgCl/Ag2O potential, which is pH-dependent. The Ag2O also builds in the pores of the frit resulting in high impedance. The Ag/AgCl electrode cannot be used in sulfide containing electrolytes due to the formation of insoluble Silver sulfide

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REFERENCE ELECTRODE

A reference electrode must have specific electrical, physical and chemical properties. It must facilitate the measurement of accurate pipe/soil/reference electrode potentials on pipelines. It must ideally have a stability that is sustainable for years. For this to occur it should not be polarized by the very low electrical current that will flow in a measurement circuit. The potential should be measured with a high impedance multi-meter or voltmeter.

Reference electrode allows you to measure the potential of the working electrode without passing current through it while counter (auxiliary) electrode allows you to pass current. If oxidation occurs at the working electrode, reduction using the same magnitude of current is sustained at the counter electrode and hence there is no current flow between working and reference electrode(high input impedance) enabling us to follow changes in working electrode potential accurately. This is not possible in a two electrode system although we can get crude values by using certain types of electrodes which can act simultaneously as working and reference electrode.

Tiaano supplying reference electrodes like zinc, AgAgcl for the pipeline, jetty etc.,

Our recent supply  of MMO Coated Cantilever anode and reference electrode to our Calcutta customer:

 For Enquiries please drop your email at dsa@tiaano.com|dsasupport@tiaano.com

Ag/Agcl Reference Electrode is the silver/silver chloride reference electrode is composed of a silver wire, sometimes coated with a layer of solid silver chloride, immersed in a solution that is saturated with potassium chloride and silver chloride.

Platinum titanium is a platinum metal oxide or platinum layer-coated on a titanium substrate. It is non-consumption, durable, and insoluble in the electrolyte.  We can use platinum titanium anode for cathodic protection and electroplating.

Zinc Reference electrodes are generally implemented for the purpose of monitoring the anode in cathodic protection of buried or immersed metallic structures. It is made of high-purity Zinc alloy, ensuring accuracy and stability of potential measurements.

The electrode frame is made of stainless steel, coated carbon steel or Rubber. The electrode can be designed to fix in the structure. By means of specifically designed supports.

Cu/CuSO4 portable reference electrode implements a major usage in the cathodic protection System. Reference Electrode are in different shapes like disc, rod and strip with different dimension, which is also installed in the Heat exchanger to monitor the current supply of cantilever anodes.

MMO coated Canister anodes are commonly used for impressed current anode cathodic protection applications. These can be used to protect buried metallic piping in congested plant environments, to protect distribution or transmission pipelines in either distributed shallow ground beds or as horizontal remote ground bed anodes, and to protect other structures such as above ground or buried tanks and piling systems.

• Flexibility to meet various user needs;
• Produce complex shape of the anode;
• Energy-saving;
• Lightweight (especially the mesh grid anode);
• Longer working life under higher current density;
• Firm titanium structure, less deformation;
• Second platinized allowed;
• Uniform deposit, final products with high quality.

For Enquiries please drop your email at dsa@tiaano.com|dsasupport@tiaano.com

Reference electrodes are generally implemented for the purpose of monitoring the anode in cathodic protection of buried or immersed metallic structures. It is made of high-purity of alloys, ensuring accuracy and stability of potential measurements.

The electrode frame is made of stainless steel, coated carbon steel or Rubber. The electrode can be designed to fix in the structure. By means of specifically designed supports.

These Reference Electrode implements a major usage in the cathodic protection System. Reference Electrode are in different shapes like disc, rod and strip with different dimension, which is also installed in the heat exchanger to monitor the current supply of cantilever anodes.

Cantilever anode is used for protecting pipeline internals, suction and condenser box internal for 30 years and more by applying DC current with transformer rectifier.

Normally titanium is well known for its high resistance to corrosion both water and chemical media but titanium is the poor electricity conductor. So we use platinum/ MMO plating/ coating to increase the conductivity.

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The use of a metal reference electrode to measure potential difference in direct contact with the electrolyte around the structure may not make sense, but the reference zinc electrode in seawater is suitable for many applications. Successful samples have also been observed in the use of this electrode in the tanks bottom with the backfill, although many designs today use copper/ copper sulphate reference electrodes.

 Zinc reference electrode is cheaper than silver/ silver chloride reference electrode and is used instead unless a high degree of stability is required. In addition, the mechanical stability of this type of electrode is much higher than other reference electrodes which have different and fragile components

High purity zinc ingots (minimum 99.9% with maximum iron content of 0.0014%) are used in the production of zinc reference electrodes. For connecting, a copper cable with chloride resistance coating and with 10 mm² or 16 mm² cross section is used and the cable is welded to the steel core inside the electrode. The interface between the copper cable and the steel rod is coated with epoxy resin.

MMO Coated cantilever anode are used to protect the surface of gigantic pump internals and condenser box where the sea water pass through in it. These anodes are use to protect the pump internals from erosion and corrosion with impressed current.

Reference electrodes are used in locations where a constant, stable reference where our anodes are installed with constant potential rectifiers.

Normally we can use wide variety of reference electrodes like zinc, silver chloride or copper sulfate reference electrodes for pump internal, condenser water box/vessel applications to monitor the cathodic protection anodes activeness.

Tiaano supplying MMO & platinum plated cantilever anodes and zinc reference electrodes for cathodic protection.

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MMO (Mixed Metal Oxide) coated rubberized disc anodes are used to protect the ship or hull from sea water corrosion. Normally Titanium having noncorrosive, but it contains nonconductive material. MMO coated will give the conductivity in titanium as per the application and amperage. Zinc reference electrode will be placed in particular distance as per the cathodic protection system to monitor the conductivity of the MMO coating disc.   

Sea water is very corrosive environment because the salt present in it makes very good conductor of electricity. It creates a lot of free irons which accelerate oxidation of iron (mid steel) which made of oxidation.

When using MMO coated rubberized disc anode to protect the ship hull from sea water corrosion, external current are applied to convert high-potential anodic sites on a ship hulls to low-potential cathodic sites. This ensures the ship hull surface is protected from corrosion.

We can install MMO coated disc in the hull by passing DC current by a rectifier which will protect the ships life longer nearly 20 to 25 years depends upon the usage of the ship which afloat often.  

MMO coated rubberized disc size well be customized depends upon the design of the CP system.

Advantages:

• Ø  Durability compared to galvanic anode.
• Ø  Demonstrate reliability.
• Ø  Optimum documented corrosion production at minimum overall cost.  
• Ø  Anodes are lite, sturdy and compact for easy shipping, storage and installation.

Tianno manufacturing platinum as well as MMO coated disc anodes. Below product recently supplied to Singapore.

Platinized FRP insulated strip for Cathodic protection of jetty piles and monitored by zinc reference electrodes 

Platinized Titanium anodes take advantage of the low consumption rate and high current density. Voltages in excess of 10 Volts will result in severe pitting of the titanium core causing premature failure. Exterior protection of ships hulls - anodes in the shape of plates, discs or strips

Platinized FRP insulated strip Anode with impressed current leads to protect the hull of the ships. Negative terminal which is connected to ship hull and positive terminal with impressed current anodes.

Underwater steel structures protection like wharves, jetties, sheet pile walls and piers. Usually rod type anodes distributed throughout the structure to be protected to give a good overall protective current distribution.

Change in the potential of an electrode as the result of current flow to or from that electrode. Also, a change in the potential of a corroding metal from its natural steady-state value, as a result of current flow. “Depolarization” is the reverse process of Polarization. Depolarization is sometimes referred to as "hypo polarization”.

FRP Insulated strip and Zinc reference electrode

Tiaano supplying Disc anode both MMO and platinised Titanium / niobium anode for hull protection. As per the customer requirement we replace the existing Disc anodes with rubberized and FRP enclosure.

 MMO Coated ribbon anode and conductor bar for gigantic tank bottom protection. The output of the ICCP system should be optimized to provide enough current to provide protection to the target structure. Some cathodic protection transformer-rectifier units are designed with taps on the transformer windings and jumper terminals to select the voltage output of the ICCP system. Cathodic protection transformer-rectifier units for water tanks and used in other applications are made with solid state circuits to automatically adjust the operating voltage to maintain the optimum current output or structure-to-electrolyte potential. For shore structures and other large complex target structures, ICCP systems are often designed with multiple independent zones of anodes with separate cathodic protection transformer-rectifier circuits.

MMO Coated rod & MMO Coated tube – Spares for Cantilever anode and Tubular anode for cathodic protection:

We design, manufacturing and supply of MMO & Platinum plated Titanium and Niobium anodes for Impressed Current Cathodic Protection (ICCP).  According to the customer’s requirement we manufacture the anodes from copper cored titanium and copper cored niobium too.   Our anodes are gone through the accreditation test by M/s. TWT, London as per NACE standard TMO 294-200.  Our MMO coated / Platinized anodes are specified as…

Ø  Made from seamless Titanium tubes:  Single or multi string anodes, Cantilever and probe anodes, Civil probe or discrete tube anodes, Liner loop tube anodes, Tube anodes.
 
Ø  Made from titanium / niobium or their copper cored rods: Cantilever anodes, Heater probe anodes, Canister anodes, Suspended rod anodes, Rod anodes.
 
Ø  Made from titanium and niobium wires: Canister anodes, Expanded spring anodes, Anode flex, Piggy back anodes, Linear loop anodes, Wire anodes.
 
Ø  Made from Titanium and Niobium sheets:  Strip canister anodes, Strip anodes, Elliptical anodes, Disc anodes, Solid ribbon anodes, Pyramid anodes, Conductor bar.
 
Ø  Made from Titanium expanded metal mesh: Mesh canister anodes, Ribbon mesh anodes, discrete anodes, Star guard anodes, Anode mesh.
 
Ø   Reference electrodes from MMO coated titanium rods and zinc cast rods.

Tiaano supplying all cathodic protection anodes as well as spares of CP anodes such as mmo coated & platinized titanium rod, tube, mesh, plate etc., in larger quantity to our regular customers all over the world.

Our recent supply to our Indonesian customer: