Water treatment refers to the process of removing unwanted substances from water for industrial and domestic purposes via physical and chemical methods. General-purpose water treatment power supplies are dedicated devices that generate the electric field required for chemical water treatment processes, and water treatment rectifiers serve as the core power equipment in this sector. For example, a 200A ±100V rectifier for water treatment is a typical high-power unit used in large-scale chlorination systems, delivering the precise DC output required for effective disinfection.

Among various water treatment technologies, water treatment rectifiers act as critical equipment with irreplaceable functions. By adjusting current characteristics, they deliver stable and reliable power supply for water treatment procedures, thus boosting overall processing efficiency.

What a water treatment rectifier essentially does is take alternating current (AC) and turn it into direct current (DC). The AC coming in gets rectified and filtered, producing a higher DC voltage. That DC then goes through a frequency conversion stage that turns it into high-frequency AC at about 15 kHz. This high-frequency AC is passed through a high-frequency transformer to the secondary side, where it gets rectified and filtered once more to give you the output voltage you need. A control circuit samples both output voltage and current, then uses closed-loop feedback to generate PWM signals that regulate the power conversion stage, keeping the rectifier’s output steady.

Advantages of Water Treatment Rectifier

High Efficiency & Stable Performance
Based on the operational data of tens of thousands of installed units, products deliver outstanding reliability when installed and operated in compliance with specifications. They maintain stable long-term operation and consistently guarantee effective water treatment results.

Eco-Friendly
Water treatment rectifiers eliminate the need for traditional chemical additives in water treatment, enabling truly natural and environmentally friendly treatment processes.

Multi-Layer Protection
Equipped with comprehensive protection mechanisms including overcurrent, phase loss, overtemperature and other safety functions.

Intelligent Control
All rectifiers support local display and operation on the unit itself, as well as remote monitoring and control via PLC. Each unit is fitted with an RS485 communication module. Operating status (running, forward operation, fault, local/remote mode) can be displayed locally and transmitted to the PLC; remote control is also available via 4–20 mA analog signals.

Features of Water Treatment Rectifier

Adjustable Output
Output regulation range: rated voltage 0–100% continuously adjustable, rated current 0–100% continuously adjustable; voltage and current can be regulated independently.

Remote Control Capability
All rectifiers support local display and operation as well as remote PLC monitoring and control, equipped with RS485 communication modules. Each unit integrates local and remote PLC functions including voltage/current adjustment, output voltage/current display, start/commutation control. Real-time operating status (running, forward operation, fault, local/remote mode) is shown locally and uploaded to the PLC; 4–20 mA analog signals are adopted for remote control.

Soft Start & Soft Stop
Built-in soft start and soft stop functions; soft start and soft stop durations can be set on the on-site cabinet.

Reserved Interlock Terminals
The rectifier features interlock functions with reserved terminals for connection to passive normally open contacts inside the client’s control cabinet. The power supply will suspend startup and output when this signal circuit is disconnected.

Application Scenarios of Water Treatment Rectifier

Liyuan Haina water treatment rectifiers are widely deployed across the water treatment industry, including industrial and domestic sewage treatment, electrolytic treatment of electroplating wastewater, precious metal recovery, seawater desalination, sodium hypochlorite electrolysis and other applications.

Electrocoagulation Water Treatment
This technology uses the DC field from the rectifier to dissolve the anode, releasing metal ions into the water. Those ions meet up with hydroxide ions and form flocculants—aluminum hydroxide is a good example—which then pull out suspended solids, pigments, and heavy metals. In a typical electrocoagulation system, the rectifier powers the electrodes inside the tank, and the water gets cleaned up through these electrochemical reactions.

Electrolytic Wastewater Treatment
Industrial wastewater contains hazardous pollutants including heavy metal ions and organic compounds. Driven by current from water treatment rectifiers, contaminants undergo redox reactions on electrode surfaces and are broken down. In hardware processing and surface finishing wastewater treatment, rectifiers enable recovery and reuse of valuable metal ions such as copper, gold and silver.

Seawater Desalination
In seawater desalination processes such as electrodialysis and reverse osmosis, water treatment rectifiers provide stable DC power to facilitate seawater desalination.

Ballast Water Treatment
Ship ballast water must be treated to prevent invasive marine species. Rectifiers electrolyze seawater to produce disinfectants like sodium hypochlorite for ballast water sterilization.

Electrodeionization (EDI) Systems
EDI is an advanced deep desalination technology for ultrapure water production. Water treatment rectifiers power EDI systems, removing ionic impurities from water via electrochemical reactions to yield high-purity water.

Sodium Hypochlorite Generation
Rectifiers electrolyze seawater or brine, and the sodium hypochlorite produced this way is then used as a disinfectant across various water treatment applications.

±30V 1200A Rectifier Project for Water Treatment in Saudi Arabia

Types of Water Treatment Rectifier

High-Frequency Rectifiers
Efficient, energy-saving, precise, and reliable—these rectifiers have found their way into wastewater treatment, seawater desalination, ballast water treatment, and sodium hypochlorite production from seawater or brine. They handle conventional electrochemical processes like electrocoagulation, electrolytic oxidation, and electrochemical disinfection just fine, with output voltages typically landing in the 10–100 V range.

Silicon Controlled Rectifier (SCR) Rectifiers
These are what you turn to when the job calls for higher voltages—high-voltage electrochlorination, for instance.

EDI Power Rectifiers
Custom-developed for Electrodeionization (EDI) systems, capable of precise regulation of output voltage and current with a typical DC voltage range of 50–300 V. These rectifiers deliver stable DC electric fields for EDI modules, with core capabilities of accurate voltage control, current density adjustment and polarity switching to ensure efficient and steady EDI operation. They are extensively applied in EDI systems producing drinking water, industrial process water, pharmaceutical-grade water and electronic-grade ultrapure water.

Cooling Type for Water Treatment Rectifier

Air Cooling: Heat dissipation fan + air duct + comb heat sink

Water Cooling：Built-in water circulation line

Products Parameters

Production Capability​

Liyuan Haina operates two production bases – one in Jiangxi, China, and the other in Thailand – with a total area of 53,000 square meters. This physical infrastructure supports our manufacturing operations through:

• Dual-location production: The China and Thailand facilities give us flexible manufacturing capacity and regional supply chain advantages.
• Dedicated R&D support: Three research centers develop process improvements that directly enhance our production efficiency.
• Integrated business units: Six subsidiaries handle key supporting functions that keep our manufacturing operations running smoothly.

Technical Capability

LIYUAN rectifier is the most competitive brand in China

Company relies on strong technology research and development cooperation basis, created a number of advanced technology, in recent 3 years amounted to more than 30 to apply for a patent, which has nearly 10 patents of invention.

Equipped with the national electric power transformation and control engineering technology research center (branch), and has set up a loan enterprise academician workstation.

Strict implementation of ISO quality management system, and through the CE safety certification, has been implementing ERP management for many years, to achieve the network, systematic computer control, the formation of a standard, efficient modern management system.

Service

› Packing

1.Small size rectifier packing in carton box separately.

2.Large size rectifier will be packed in wooden case.

3.We guarantee that all the packing is intact when it reaches its destination.

› Shipping

1.30-45 Days after payment.

2.Transport: DHL, FEDEX, UPS, Air shipping, Boat shipping

3.You may choose our shipping partner or your own partner.

› Maintenance

We are pleasant to share our theory and experience on equipment maintenance with users.

We are pleasant to interact with users to collect their tips and know-hows on equipment maintenance.

The module “Maintenance” here is intended to help users solve various problems they possibly encounter during equipment maintenance…

If you require water treatment rectifiers with different specifications, we can custom-design them to meet your requirements. Please contact us for more information.​

Looking for factory-direct pricing on a 200A ±100V DC rectifier for water treatment applications? Liyuan Haina Rectifier is a professional manufacturer and supplier specializing in industrial rectifiers. With 27+ years of experience in R&D, production, and global technical services, we export to the United States, Sweden, Netherlands, Italy, Spain, South Africa, Russia, Germany, Japan, South Korea, Malaysia, etc. Our high-quality, Made-in-China rectifiers offer competitive pricing and customization options. Welcome to contact us.

The post 200A ±100V Rectifier for Water Treatment appeared first on Premium Hydrogen Electrolysis and Copper Refining Rectifiers Made in China.

Water treatment refers to the process of removing unwanted substances from water for industrial and domestic purposes via physical and chemical methods. General-purpose water treatment power supplies are dedicated devices that generate the electric field required for chemical water treatment processes, and water treatment rectifiers serve as the core power equipment in this sector. For example, an SCR rectifier 500A ±100V for water treatment and electrolysis is a typical high-power model used in large-scale chlorination systems, delivering the precise DC output needed for effective disinfection.

Among various water treatment technologies, water treatment rectifiers act as critical equipment with irreplaceable functions. By adjusting current characteristics, they deliver stable and reliable power supply for water treatment procedures, thus boosting overall processing efficiency.

What a water treatment rectifier essentially does is take alternating current (AC) and turn it into direct current (DC). The AC coming in gets rectified and filtered, producing a higher DC voltage. That DC then goes through a frequency conversion stage that turns it into high-frequency AC at about 15 kHz. This high-frequency AC is passed through a high-frequency transformer to the secondary side, where it gets rectified and filtered once more to give you the output voltage you need. A control circuit samples both output voltage and current, then uses closed-loop feedback to generate PWM signals that regulate the power conversion stage, keeping the rectifier’s output steady.

Advantages of Water Treatment Rectifier

High Efficiency & Stable Performance
Based on the operational data of tens of thousands of installed units, products deliver outstanding reliability when installed and operated in compliance with specifications. They maintain stable long-term operation and consistently guarantee effective water treatment results.

Eco-Friendly
Water treatment rectifiers eliminate the need for traditional chemical additives in water treatment, enabling truly natural and environmentally friendly treatment processes.

Multi-Layer Protection
Equipped with comprehensive protection mechanisms including overcurrent, phase loss, overtemperature and other safety functions.

Intelligent Control
All rectifiers support local display and operation on the unit itself, as well as remote monitoring and control via PLC. Each unit is fitted with an RS485 communication module. Operating status (running, forward operation, fault, local/remote mode) can be displayed locally and transmitted to the PLC; remote control is also available via 4–20 mA analog signals.

Features of Water Treatment Rectifier

Adjustable Output
Output regulation range: rated voltage 0–100% continuously adjustable, rated current 0–100% continuously adjustable; voltage and current can be regulated independently.

Remote Control Capability
All rectifiers support local display and operation as well as remote PLC monitoring and control, equipped with RS485 communication modules. Each unit integrates local and remote PLC functions including voltage/current adjustment, output voltage/current display, start/commutation control. Real-time operating status (running, forward operation, fault, local/remote mode) is shown locally and uploaded to the PLC; 4–20 mA analog signals are adopted for remote control.

Soft Start & Soft Stop
Built-in soft start and soft stop functions; soft start and soft stop durations can be set on the on-site cabinet.

Reserved Interlock Terminals
The rectifier features interlock functions with reserved terminals for connection to passive normally open contacts inside the client’s control cabinet. The power supply will suspend startup and output when this signal circuit is disconnected.

Application Scenarios of Water Treatment Rectifier

Liyuan Haina water treatment rectifiers are widely deployed across the water treatment industry, including industrial and domestic sewage treatment, electrolytic treatment of electroplating wastewater, precious metal recovery, seawater desalination, sodium hypochlorite electrolysis and other applications.

Electrocoagulation Water Treatment
This technology uses the DC field from the rectifier to dissolve the anode, releasing metal ions into the water. Those ions meet up with hydroxide ions and form flocculants—aluminum hydroxide is a good example—which then pull out suspended solids, pigments, and heavy metals. In a typical electrocoagulation system, the rectifier powers the electrodes inside the tank, and the water gets cleaned up through these electrochemical reactions.

Electrolytic Wastewater Treatment
Industrial wastewater contains hazardous pollutants including heavy metal ions and organic compounds. Driven by current from water treatment rectifiers, contaminants undergo redox reactions on electrode surfaces and are broken down. In hardware processing and surface finishing wastewater treatment, rectifiers enable recovery and reuse of valuable metal ions such as copper, gold and silver.

Seawater Desalination
In seawater desalination processes such as electrodialysis and reverse osmosis, water treatment rectifiers provide stable DC power to facilitate seawater desalination.

Ballast Water Treatment
Ship ballast water must be treated to prevent invasive marine species. Rectifiers electrolyze seawater to produce disinfectants like sodium hypochlorite for ballast water sterilization.

Electrodeionization (EDI) Systems
EDI is an advanced deep desalination technology for ultrapure water production. Water treatment rectifiers power EDI systems, removing ionic impurities from water via electrochemical reactions to yield high-purity water.

Sodium Hypochlorite Generation
Rectifiers electrolyze seawater or brine, and the sodium hypochlorite produced this way is then used as a disinfectant across various water treatment applications.

±30V 1200A Rectifier Project for Water Treatment in Saudi Arabia

Types of Water Treatment Rectifier

High-Frequency Rectifiers
Efficient, energy-saving, precise, and reliable—these rectifiers have found their way into wastewater treatment, seawater desalination, ballast water treatment, and sodium hypochlorite production from seawater or brine. They handle conventional electrochemical processes like electrocoagulation, electrolytic oxidation, and electrochemical disinfection just fine, with output voltages typically landing in the 10–100 V range.

Silicon Controlled Rectifier (SCR) Rectifiers
These are what you turn to when the job calls for higher voltages—high-voltage electrochlorination, for instance.

EDI Power Rectifiers
Custom-developed for Electrodeionization (EDI) systems, capable of precise regulation of output voltage and current with a typical DC voltage range of 50–300 V. These rectifiers deliver stable DC electric fields for EDI modules, with core capabilities of accurate voltage control, current density adjustment and polarity switching to ensure efficient and steady EDI operation. They are extensively applied in EDI systems producing drinking water, industrial process water, pharmaceutical-grade water and electronic-grade ultrapure water.

Cooling Type for Water Treatment Rectifier

Air Cooling: Heat dissipation fan + air duct + comb heat sink

Water Cooling：Built-in water circulation line

Products Parameters

Production Capability​

Liyuan Haina operates two production bases – one in Jiangxi, China, and the other in Thailand – with a total area of 53,000 square meters. This physical infrastructure supports our manufacturing operations through:

• Dual-location production: The China and Thailand facilities give us flexible manufacturing capacity and regional supply chain advantages.
• Dedicated R&D support: Three research centers develop process improvements that directly enhance our production efficiency.
• Integrated business units: Six subsidiaries handle key supporting functions that keep our manufacturing operations running smoothly.

Technical Capability

LIYUAN rectifier is the most competitive brand in China

Company relies on strong technology research and development cooperation basis, created a number of advanced technology, in recent 3 years amounted to more than 30 to apply for a patent, which has nearly 10 patents of invention.

Equipped with the national electric power transformation and control engineering technology research center (branch), and has set up a loan enterprise academician workstation.

Strict implementation of ISO quality management system, and through the CE safety certification, has been implementing ERP management for many years, to achieve the network, systematic computer control, the formation of a standard, efficient modern management system.

Service

› Packing

1.Small size rectifier packing in carton box separately.

2.Large size rectifier will be packed in wooden case.

3.We guarantee that all the packing is intact when it reaches its destination.

› Shipping

1.30-45 Days after payment.

2.Transport: DHL, FEDEX, UPS, Air shipping, Boat shipping

3.You may choose our shipping partner or your own partner.

› Maintenance

We are pleasant to share our theory and experience on equipment maintenance with users.

We are pleasant to interact with users to collect their tips and know-hows on equipment maintenance.

The module “Maintenance” here is intended to help users solve various problems they possibly encounter during equipment maintenance…

If you require water treatment rectifiers with different specifications, we can custom-design them to meet your requirements. Please contact us for more information.​

Looking for factory-direct pricing on a 500A ±100V SCR rectifier for water treatment and electrolysis applications? Liyuan Haina Rectifier is a professional manufacturer and supplier specializing in industrial rectifiers. With 27+ years of experience in R&D, production, and global technical services, we export to the United States, Sweden, Netherlands, Italy, Spain, South Africa, Russia, Germany, Japan, South Korea, Malaysia, etc. Our high-quality, Made-in-China rectifiers offer competitive pricing and customization options. Welcome to contact us.

The post SCR Rectifier 500A ±100V for Water Treatment and Electrolysis appeared first on Premium Hydrogen Electrolysis and Copper Refining Rectifiers Made in China.

Engineered for hydrogen electrolysis, this 100V 10kA industrial rectifier delivers essential DC power with maximum reliability, ensuring stable electrolyzer operation for green hydrogen production.

After the AC input voltage is filtered by the rectifier circuit, the high-voltage DC power is obtained. “Variable frequency conversion” can invert the high-voltage direct current into about 30 kHz high-frequency alternating current, which is then converted into the secondary voltage by a high-frequency transformer, and then filtered by the high-frequency rectifier circuit to obtain the required output voltage ​for hydrogen electrolysis.

Then, sampling of the output voltage and current is performed by the control circuit, and the signal of pulse width modulation (PWM) for controlling the inverter circuit is generated after closed-loop feedback to keep steady output voltage and current ​for hydrogen electrolysis.

Application of Hydrogen Electrolysis in Hydrogen Energy

Among various hydrogen-production methods, ​Hydrogen Electrolysis​ is widely used. The ​Power Rectifier​ primarily supplies DC power for the electrolysis reaction, producing hydrogen and oxygen from water.

The generated hydrogen has broad applications—refineries, fuel cells, ammonia/methanol synthesis, metal processing, food production, and electronics—with especial prominence in the vehicle industry.

Hydrogen Electrolysis​ is achieved by linking a ​Power Rectifier​ to the conventional power grid and coupling it with an electrolyzer. Alternatively, renewable sources (photovoltaic, wind, wave, biomass—termed ​Green Hydrogen​ when derived renewably) can also power the rectifier-electrolyzer system. An inverter mediates between hydrogen storage and the grid.

Core Advantage of Hydrogen Electrolysis

High efficiency, high regulation accuracy and stable output

The rectifier adopts multiple modules in parallel, with a small single module, low requirements for electronic components and low failure rate.

Multiple protection

The power supply has multiple protection functions such as overcurrent, phase loss, and over temperature.

Anti-corrosion, beautiful and long service life

The high-power rectifier basically overcomes the influence of eddy current heating of the large current magnetic field, so the loss is small and the service life is long.

Convenient installation

The circuit of the busbar is short, and the number of supporting points and joints of the busbar is small. Therefore, the installation is simple and convenient. During installation, construction personnel only need to stand on the concrete foundation platform to complete the installation of the power supply and busbar, without the need for scaffolding, and there is no risk of working at heights for construction personnel.

Products Solutions for hydrogen electrolysis

Our electrolytic hydrogen production rectification products offer a diverse range of solutions, including the SST Hydrogen Electrolysis Rectifier, IGBT Hydrogen Electrolysis Rectifier Series, Diode Rectification + IGBT Chopper Electrolysis Hydrogen Production Power Supply, DC – DC converter, Silicon – Controlled Rectifier for Hydrogen Electrolysis, and PWM + IGBT Chopper Electrolysis Hydrogen Production Power Supply.

With advanced design concepts and extensive experience in rectifier manufacturing, we are committed to providing both domestic and international users with the optimal power solutions and the most stable, efficient power supplies.

The Role of Rectifiers in Hydrogen Energy​

Rectifiers form the backbone of hydrogen production systems, directly impacting operational efficiency. By delivering tightly regulated DC power, they reduce energy waste in electrolysis and elevate hydrogen output. Their stable power delivery also ensures uninterrupted operation, a critical factor for large-scale industrial hydrogen generation.

Cooling Type for hydrogen electrolysis

Air Cooling: Heat dissipation fan + air duct + comb heat sink

Water Cooling：Built-in water circulation line

Products Parameters

Production Capability​

Liyuan Haina operates two production bases – one in Jiangxi, China, and the other in Thailand – with a total area of 53,000 square meters. This physical infrastructure supports our manufacturing operations through:

• Dual-location production: The China and Thailand facilities give us flexible manufacturing capacity and regional supply chain advantages.
• Dedicated R&D support: Three research centers develop process improvements that directly enhance our production efficiency.
• Integrated business units: Six subsidiaries handle key supporting functions that keep our manufacturing operations running smoothly.

Technical Capability

LIYUAN rectifier is the most competitive brand in China

Company relies on strong technology research and development cooperation basis, created a number of advanced technology, in recent 3 years amounted to more than 30 to apply for a patent, which has nearly 10 patents of invention.

Equipped with the national electric power transformation and control engineering technology research center (branch), and has set up a loan enterprise academician workstation.

Strict implementation of ISO quality management system, and through the CE safety certification, has been implementing ERP management for many years, to achieve the network, systematic computer control, the formation of a standard, efficient modern management system.

Qualification certification

Liyuan adhere to innovation and the continuous improvement of power conversion efficiency and product quality.

The increasing R&D investment every year, and cooperation with China’s well-known universities, we has established the research center of national electric power conversion and control engineering technology.

Especially the related core patents of high-power synchronous rectifier power supply, stay ahead of the whole industry in China.

The ISO 9001 quality management system has been fully implemented in Liyuan, including quality inspection of components in warehouse, production process inspection, and final product inspection.

We adopt advanced scientific quality management system and the most stringent testing methods in the whole process to ensure the stability and reliability of products.

Service

› Packing

1.Small size rectifier packing in carton box separately.

2.Large size rectifier will be packed in wooden case.

3.We guarantee that all the packing is intact when it reaches its destination.

› Shipping

1.30-45 Days after payment.

2.Transport: DHL, FEDEX, UPS, Air shipping, Boat shipping

3.You may choose our shipping partner or your own partner.

› Maintenance

We are pleasant to share our theory and experience on equipment maintenance with users.

We are pleasant to interact with users to collect their tips and know-hows on equipment maintenance.

The module “Maintenance” here is intended to help users solve various problems they possibly encounter during equipment maintenance…

Need ​a​ 100V 10kA industrial rectifier for hydrogen electrolysis? Liyuan Haina Rectifier is a professional manufacturer and supplier specializing in industrial rectifiers. With 27+ years of experience in R&D, production, and global technical services, we export to the United States, Sweden, Netherlands, Italy, Spain, South Africa, Russia, Germany, Japan, South Korea, Malaysia, etc. Our high-quality, Made-in-China rectifiers offer competitive pricing and customization options. Welcome to contact us.

The post 100V 10kA Industrial Rectifier for Hydrogen Electrolysis appeared first on Premium Hydrogen Electrolysis and Copper Refining Rectifiers Made in China.