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Corroco International Industrial Co.,ltd is a professional company engaged in electrochemistry, electrodeposition engineering technology and equipment manufacturing in Asia. We have powerful electrochemistry and smelting plus equipment manufacturing experts group, professional cathodic protection electrode ...

About Us

Corroco International Industrial Co., Ltd is a company professionally engaged in electrochemistry, electrodeposition engineering technology and equipment manufacturing in Asia. Founded in 2000, we mainly produce cathodic protection ...

Cathodic Protection

Cathodic protection (CP) is a kind of electrochemical protection technology. The cathode protection (galvanic protection) is used to exert an impressed current on the metal surface, make it work as a cathode of an electrochemical cell, thus control the ...

Galvanic Anode

A galvanic anode is the main component of a cathodic protection (CP) system, which is used to protect buried or submerged metal structures from corrosion. It is made from a metal alloy with a more "active" voltage (more negative electrochemical ...

Magnesium Anode

Magnesium anode is a common sacrificial anode material used in electrochemical cathodic protection engineering. This galvanic anode is connected to steel structures to prevent or slow down rusting. This magnesium sacrificial anode has high chemical...

Aluminum Anode

Aluminum anode is used as a part of a technique called cathodic protection (CP). The aluminum sacrificial anode is also a conductive rod that is attached to metal structures or installed into metal devices. This part is used to reduce corrosion in metal objects including buildings, structures, and home appliances like ...

Zinc Anode

Zinc anode is a kind of zinc component used to help galvanized steel and other objects. It is often used to prevent corrosion and help other materials corrode more slowly and last longer. The sacrificial zinc anode is also a part of a large system which gives objects corrosion resistant abilities. They are common among ...

Pure Iron Anode

Pure iron anode is mostly used for the protection of copper alloys of heat exchanger, fresh water facility, desalination plant (evaporator, brine heater) and condenser. It is also used as a positive pole that has much less carbon than other general irons. This cast iron anode is especially useful in stress corrosion of ...

Impressed Current Anode

The principle of cathodic protection is to connect an external anode to the material to protect it from corrosion and to pass DC current into it. Thus the whole metal surface becomes cathodic and does not corrode. The external anode may be a galvanic ...

Silicon Iron Anode

Corroco designed and produced solid or tubular silicon iron anodes for the effective cathodic protection for underground and underwater structures by the impressed current method. This high silicon cast iron anode (high silicon iron tubular anode) is ...

MMO Anode

Mixed metal oxide anodes (MMO anodes) are anodes made by titanium coated with mixed metal oxide. It is a crystalline electrically-conductive coating that activates the titanium and enables it to function as an anode. MMO anodes have an extremely low consumption rate. They are widely used in soil, sea...

Graphite Anode

Graphite is a good conductor of electricity, which is low in cost and chemically resistant. Graphite anode is a conductive part of an electrical system or medium. It is commonly used in cathodic protection (CP) systems. This impressed current anode is also used to protect the structural integrity of buildings and metals...

Flexible Anode

Flexible anode is also called polymer type cable anode, which is made of conductive and modified polymer with stable performance. The application of flexible auxiliary anode successfully resolves the problem of old pipeline cathodic protection...

MMO/Ti Flexible Anode

MMO/Ti flexible anode is the new generation of flexible anode with a long life. Mixed metal oxide titanium flexible anode integrates the advantages of large current of MMO anode and excellent conductive performance of copper conductor cable. Due to its large current and small grounding resistance, it can be buried in ...

Conductive Polymer Flexible Anode

Conductive polymer flexible anode uses a long line of successive secondary anode and conductive polymer as its basic material. This flexible anode can not only solve the problem of the old pipeline cathodic protection, but also settle some technology difficulties of some traditional cathodic protection, such as the ...

Cathodic Protection Accessory

Cathodic protection technology is a kind of electrochemical protection technology. The principle is to exert an impressed current on the metal surface. Protected structure becomes cathodic, thus makes the electronic migration of metal be suppressed, and ...

Brazing Pin(Pin Brazing)

Brazing pin is often used as a safe electrical connection to different types of metals. The process is ideally suited for applications including continuity bonding between pipes, test cables, CP connections for installation of sacrificial anodes and test posts. Brazing pin takes about 1.5 - 2 minutes for each ...

CP Wire and Cable

CP wire and cable is mainly used in impressed current cathodic protection system. This insulated cathodic protection cable has excellent electrical properties, mechanical properties, heat aging properties, strong resistance to environmental stress and chemical corrosivity. CP wire and cable is of low water ...

Test Station

Test station is an essential part of cathodic protection system (tank, pipe, wharf and other metal structures). It is mainly used to check and monitor the effectiveness and operating parameters of cathodic protection. This cathodic protection test pile is also applied to test protection potential, and can be used for testing ...

Junction Box

Electrical junction box is a device containing the wiring junctions, which allow the wiring in the house or public building to interface with the main power supply. The junction box is more practical than the exposed electrical wires. This box is an integral part of a circuit protection system. The installation of the fireproofing around ...

Reference Electrode

A reference electrode is an electrode with a stable and well-known electrode potential. It is used in many ways. For example, it is used as a half cell to build an electrochemical cell. This electrode can be also used for measuring the working electrode potential of an electrochemical cell. A reference electrode for cathodic ...

Transformer Rectifier

The transformer rectifiers may be produced with different controls upon request (or according to cathodic protection design). Cooling system in such cathodic protection accessory is "AN" type. The degrees of protection of both air cooled TR and oil cooled transformer rectifier will be upon request. To increase its safety ...

Anode Rod for Water Heater

The anode rod for water heater is the most important factor to determine the life of your water heater. A water heater anode rod is a steel core wire surrounded with one of three different metals. These metals include aluminum, magnesium and zinc. The rod is screwed ...

Extruded anode rod fro water heater is used for corrosion protection of water heaters, where especially long anodes are required. Extruded water heater anode rods have a steel wire core, 3.4 mm in diameter...

Extruded Magnesium Anode Rod

Extruded magnesium anode rod is an excellent sacrificial rod. It is the most common type of anode rods used to protect the inside metal surface of your water heater tank. Anode rod for water heater is mainly used in water boiler, heat exchanger, water container, house heaters, RV heaters, water dispenser, heat ...

Extruded Aluminum Anode Rod

Extruded aluminum anode rods are best for places with hard water. This water heater anode rod will withstand harder water than any other types. Extruded aluminum anode is featured with lower driving potential and high current capacity. The extruded aluminum anode rod is an excellent choice for saline cathodic ...

Casting anode rod for water heater is a kind of water heater anode. It mainly includes casting magnesium anode rod for water heater. Cast anode rods are used for safe corrosion protection of water storage heaters. Corroco International ...

Casting Magnesium Anode Rod

The casting magnesium anode rod for water heater is designed to make a longer life for water heaters and boilers. This casting anode rod is the solution to smelly water, sediment control and other specific problems. Magnesium anode rod is mostly used in solar water heater tank where the water quality is hard. The casting ...

Hydrometallurgical Electrode

Hydrometallurgical electrode is metal mineral raw materials (in the acidic medium or alkaline medium aqueous solution in chemical processing or organic solvent) extraction, separation and purification, impurity, extraction metal and its compound ...

Lead Anode

Lead anodes are not made of pure lead but more commonly made of metal alloys for better conduction of electricity. These kinds of hydrometallurgical electrode may not always have the same composition. They differ greatly between the devices in which they are used. The different types of alloys that are used in the lead ...

Stainless Steel Cathode

In the process of designing a system for permanent stainless steel cathodes, it is necessary to ensure that optimum electrowinning conditions can be achieved and controlled. During commissioning and operation, the control of electrowinning conditions and maintenance of operational standards are ...

Aluminum Cathode

Aluminum cathodes have been used for many years to replace lead cathodes, lead tanks, and lead cooling coils in the anodizing process. There are a number of benefits to use this hydrometallurgical electrode to replace lead. Firstly, it removes a contributing source of lead to the waste stream. Secondly, aluminum cathode plate is much more ...

Hydrometallurgical Equipment

Hydrometallurgy is a method for obtaining metals from their ores. It is a technique within the field of extractive metallurgy involving the use of aqueous chemistry for the recovery of metals from ores, concentrates, and recycled or residual materials...

Rectifier Transformer

Rectifier transformer is designed as a single entity for converting alternating current into direct current. It is a piece of power system equipment rather than an electronics component. Rectiformers are used for supplying power to different fields of ESP (electrostatic precipitator). It is commonly found in electrowinning ...

Induction Furnace

An induction furnace is an electrical furnace used for melting metals. The advantage of the induction heating furnace is a clean, energy-efficient and well-controllable melting process compared to other means of metal melting. Most modern foundries use ...

Cored Induction Furnace

Core induction furnace is also called channel induction furnace. It has an iron core which can pass through the induction coil. Because its heat source is surrounded by a metal groove, so it is also named tank furnace. CORROCO core induction melting furnace for Zinc smelting is mainly used for copper, aluminum...

Coreless Induction Furnace

Coreless induction furnace is named relative to core induction furnace. The metal liquid is filled into a crucible, so it is also known as crucible furnace. The coreless induction melting furnace is one of the most important furnace types for cast iron foundries, for the whole non-ferreous industry and for special applications in steelworks. It is used either as a melting furnace, a holding ...

Casting Machine

Casting wheel is a wheel having on its circumference molds for receiving molten metal. One of CORROCO' strategic cooperator is the top copper metallurgy equipment manufacturer in China. In the field of Cu anode casting machine, our product is widely used ...

Rotary Kiln

Rotary kiln is a type of large hydrometallurgical equipment. As a kind of thermal equipment, it is widely used in the fields of cement, nonferrous metallurgy, ferrous metallurgy, refractory material, chemical materials, paper making, etc. Arotary calciner is also a pyroprocessing device used to raise materials to a high ...

Metallurgy Technology & Engineering

Metallurgical engineering is a sub-field of materials engineering that focuses on using steel and other metals to create new products and materials. It is a broad field that deals with all sorts of metal-related areas. It includes three main branches: physical metallurgy, extractive metallurgy and mineral processing...

Water Valve

Corroco's joint venture--Hunan Precise Fluid Equipment Co, Ltd, is a high-tech professional manufacturer and supplier of high-quality water valves. It is also engaged in researching, designing, producing, sales and technical services of related fluid ...

Sleeve Valve

The sleeve valve is an intake or exhaust valve for an engine, consisting of one or more sleeves reciprocating within a cylinder, so that ports in the cylinder and in the sleeves are opposed at regular intervals to open the valve. This water valve was a popular ...

Model B05 Sleeve Valve

Model B05 sleeve valve is a kind of balanceable sleeve regulating valve. It adopts sleeve to adjust and double bellow plugs to seal. It has exact flow characteristics and low noise. This water valve is widely applied to the fields of petroleum, chemical plant, electric power and smelting, etc. The sleeve valve is also used in the ...

Model B10 Sleeve Valve

The sleeve valve is a type of valve mechanism fitted between the cylinder and piston. It is a device typically used in a water supply or distribution system when there is a need to reduce high pressure or throttle flow. This water valve consists of a cylindrical gate which slides over an inner sleeve. The inner sleeve was consists of a series of nozzles specifically sized and arranged to provide a ...

Model B11 Sleeve Valve

Corroco model B-11 sleeve valve is designed to provide superior valve performance for atmospheric or submerged discharge in flow control and pressure reduction applications. Its typical applications are turbine bypass, reservoirs discharge, ground water recharge and accurate adjustment and control of flow. This submerged type sleeve valve dissipates energy...

Model B12 Sleeve Valve

The model B12 sleeve valve can provide superior valve performance for angle flow control, pump control, tank level control, metering vaults, reservoirs discharge and ground water recharge. This sliding valve dissipates energy and controls flow by diverting the water path around a sleeve and into a valve body...

Model B14 Sleeve Valve

CORROCO B14 sleeve valve is designed to incorporate features that provide superior valve performance for atmospheric or submerged discharged flow and pressure reduction applications. It dissipates energy and controls flow by ...

Model B16 Sleeve Valve

The sleeve valve is a type of valve mechanism fitted between the cylinder and piston. It is designed to provide superior performance for inline flow and pressure reduction applications. Sleeve plug valves are used to pass a controlled amount of water downstream with no damage to the immediate surroundings. Typical ...

Butterfly Valve

Butterfly valve is also called flap valve. It is a kind of regulating valve used for isolating or regulating flow. The "butterfly" is a metal disc mounted on a rod. The disc is positioned in the center of the pipe. There is a rod connected to an actuator on the ...

Butterfly Valve

Butterfly valve is also called flap valve. It is a kind of regulating valve used for isolating or regulating flow. The "butterfly" is a metal disc mounted on a rod. The disc is positioned in the center of the pipe. There is a rod connected to an actuator on the ...

Metal Hard Sealing Butterfly Valve

The metal hard sealing butterfly valve adopts three-eccentric valve seal structure, which ensures the reliability of the butterfly valve. The valve seat and disc has almost no wear and has the tight seal function. Sealing ring chooses stainless steel with metal hard ...

Turbine Inlet Butterfly Valve

The turbine inlet butterfly valve in a hydro power station is used as a safety device. The valve is located within the power house on the upstream side. It is basically a turbine inlet valve having less head loss. The hydraulic power pack is mounted on the driving end of the valves. For small and medium turbines where grid power...

Hydraulic Control Butterfly Valve for Pumping Station-1

Hydraulic control butterfly valve for pumping station is a kind of hydraulic butterfly valve. It is applied to pump outlet and turbine inlet piping. As a closed-circuit valve and check valve, it can avoid and reduce medium backflow in the piping system so as to protect the piping system. The hydraulic control butterfly valve for pumping ...

Hydraulic Control Butterfly Valve for Pumping Station-2

Hydraulic control butterfly valve for pumping station has become a substitution of gate valve and check valve. It is equipped at the pump outlet which performs the functions of cutting off and no return. Nominal diameter of this water valve varies from 1000 to 3000 mm. Nominal pressure ranges from 0.25 to 1.0MPa...

Turbine Inlet Spherical Valve

Turbine inlet spherical valve is a kind of turbine ball valve made up of stainless steel. It is mainly used in hydropower station or water supply network to control water shutoff and opening. The flow shutoff includes two steps: rotor closure and approaching of the sealing ring. The first operation is usually made by a ...

Model C20 Cone Valve

A fixed cone valve is referred to the inverted cone plunger valve. Due to its excellent energy dissipation effect, it is also called energy dissipation valve. It is often used in spillways of dams or hydroelectric facilities. It is known as Howell-Bunger valve and Hollow Jet valve. The cone valve is a rugged and highly ...

Model N Needle Valve

A needle valve is a type of valve having a small port and a threaded, needle-shaped plunger. It allows precise regulation of flow, although it is generally only capable of relatively low flow rates. Pin valves are constructed with a small opening accompanied by a plunger that looks a great deal like a common ...

Machining & Parts

CORROCO's joint venture-High Tech Co (CORROCO invests 30%) is engaged in the business of heat treatment and machining. We adopt advanced machines from Japan Company (Nachi, Okuma) and German company (Chiron) to produce high quality parts, such as auto gearbox parts, motorcycle parts...