Water treatment equipment Product List and Ranking from 44 Manufacturers, Suppliers and Companies

Last Updated：Oct 22, 2025 Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

Water treatment equipment Manufacturer, Suppliers and Company Rankings

Last Updated：Oct 22, 2025 Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

日本テクノ Nagano//environment
カタリナ Saitama//Industrial Machinery
フジクリーン工業 Aichi//Industrial Machinery
4 日本セルポ Tokyo//Industrial Machinery
5 十字屋 (十字屋グループ） Okayama//Industrial Machinery

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Water treatment equipment Product ranking

Last Updated：Oct 22, 2025 Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

Pulse-type water treatment device "Vulcan" - Demo unit available for loan. カタリナ
Non-chemical injection filtration method High concentration MTF iron and manganese removal device レスコ
Well Water Filtration Device TC-12J 十字屋 (十字屋グループ）
4 [Industrial Liquid Filtration / IoT Compatible] Microbubble Precoat Filtration System 三進製作所
5 Home Magnetic Water Activator Mag Mini 小松商会

Water treatment equipment Product List

301～315 item / All 557 items

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Spring Water Scale Countermeasures [Electromagnetic Water Treatment Device Vol. 6]

We will introduce a case of installation on a submerged pump that had stopped due to calcium scale.

We would like to introduce a technical case study of the electromagnetic water treatment device "Hydroflow." The water from the spring pit located 15 meters underground at the power plant is supplied through pipes A and B, but it is extremely hard water. The submersible pump for drainage stops due to calcium scaling in about three months, requiring the replacement of the pump each time, which incurs significant costs and time, causing considerable trouble. Therefore, we installed the Hydroflow model S100 on the water lifting pipe. The effective range of this device is approximately 5,000 meters before and after the installation location. Additionally, this device is a semiconductor product that requires no installation costs or maintenance, and it has been operating smoothly for two years since installation. [Case Overview] ■ Issues - The pump stops due to calcium scaling in about three months because of hard water. - Replacing the pump each time incurs significant costs and time. ■ Results - It has been operating smoothly for two years since installation. *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
Price：Other

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Solution for hard water scale in the use of bore water in Australia.

A case study of successfully preventing scale adhesion using polar utilization. We will introduce the state before and after treatment with photos!

Here is an example of solving scale issues with hard water in Australia's well water usage. We successfully prevented scale adhesion on the fins and pipes of spray cooling water using polar treatment. We have included photos showing the significant scale presence before polar treatment and the absence of scale afterward. For more details, please check the PDF download below. [Measures and Effects] ■ Successfully prevented scale adhesion on the fins and pipes of spray cooling water using polar treatment. *For more information, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
Price：Other

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Case Study on the Corrosion Prevention Effect of Chilled Water in Air Conditioning Systems [Magnetic Water Treatment Device Vol. 6]

Installed on the supply header outlet side! An example showing a dark brown color compared to the untreated side.

There are two comparison devices for the internal pipe investigation; one utilizes a polarizer, while the other does not. A comparative inspection was conducted under conditions without the use of a polarizer. One unit of the polarizer model "PI-50F (2”)" was installed on the discharge side of the supply header for cold and hot water, with partial circulation treatment performed using the polarizer. After treatment, clearly old scale and rust dissolved and flowed out, forming a magnetite anti-corrosion coating inside the pipe, which appeared smoother and exhibited a dark brown color compared to the untreated side. The untreated side showed signs of corrosion and scale adhesion. [Case Study] - Installation Date: December 1985 - Purpose: Anti-corrosion and anti-scaling for cold and hot water equipment - Installation Method: The polarizer model "PI-50F (50A)" was installed on the outlet side of the supply header - Treated Water Volume: More than 5% of the total circulating water volume was treated *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
Price：Other

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Cooling water (chiller water) molding machine mold case study [Magnetic water treatment device Vol. 2]

Cooling water volume increased by 16%! Red rust has been completely removed and changed to black rust.

In the cooling passages of plastic molds, tests were conducted with the aim of removing blockages caused by rust and scale using a polarizer, thereby restoring cooling effectiveness. Additionally, we confirmed whether red rust in the cooling passages could be removed and reduced to black rust (magnetite) to form a corrosion-resistant coating. As a result, when the rust that had leached into the water tank was collected and a magnet was applied, the rust was attracted to the magnet, indicating that it had transformed into magnetite. [Test Details] ■ Purpose - To remove blockages caused by rust and scale in the cooling passages of plastic molds using a polarizer, thereby restoring cooling effectiveness (increasing cooling water flow rate). - To confirm whether red rust in the cooling passages can be removed and reduced to black rust to form a corrosion-resistant coating. ■ Location: SK Corporation Headquarters (Gifu Prefecture) ■ Duration: January 21, 1992 – May 30, 1992 (24-hour continuous bench test operation) *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
Price：Other

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Red Water Measures (Hot Water Supply of Large Hospitals) [Magnetic Water Treatment Device Vol. 11]

This is an introduction to a case where water quality improvement was achieved through the effects of a polar magnetic water treatment device!

This is a case study of measures taken against red water in a certain hospital in Okayama City (approximately 15 years after construction). A "PI-25F" Polar unit was installed on the pump discharge side, treating more than 50% of the circulating water in a partial bypass method, with water samples taken from the hospital faucet every morning at 10 AM. Sixty days after installation, improvements in water quality were observed in all aspects, including general bacteria, iron content, odor, taste, color, and turbidity, due to the effectiveness of the Polar magnetic water treatment device, particularly confirming its effectiveness in addressing red water issues in hot water supply. [Case Study] - Client: A certain hospital in Okayama City (approximately 15 years after construction) - Installation Date: Installed on March 7, 1987 - Water Quality Analysis Location: Okayama Medical Laboratory Center Co., Ltd. - Sampling Method: Water samples taken from the hospital faucet every morning at 10 AM - Polar Installation Method: A "PI-25F" Polar unit was installed on the pump discharge side, treating more than 50% of the circulating water in a partial bypass method. *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
Price：Other

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About the cause of red water (300 households) [Magnetic water treatment device Vol. 2]

We will introduce examples of conducting water main extraction in various housing complexes and investigating corrosion within the pipes!

Since the 1970s, as a measure against red water in buildings constructed after that period, the Ministry of Construction has guided the increased use of PVC-lined pipes instead of white gas pipes (zinc-coated steel pipes). Furthermore, from the 1980s to the present day in 2002, many buildings, apartments, and general residences have experienced occurrences of red water every morning. As a result, in various housing complexes, investigations were conducted by removing the water supply pipes to examine corrosion inside the pipes. The findings revealed that most of the corrosion inside the pipes was caused by the potential difference between dissimilar metals at the valves and pipe joints, as well as damage to the PVC lining seals. It was determined that the dissolved oxygen in the water reacts electrochemically with the metal through the water. [Causes] ■ Most of the corrosion inside the pipes is due to the potential difference between dissimilar metals at the valves and pipe joints, and damage to the PVC lining seals. ■ The dissolved oxygen in the water reacts electrochemically with the metal through the water. *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
Price：Other

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Red Water Measures (Hotel Hot Water) [Magnetic Water Treatment Device Vol. 9]

Installed with a partial bypass method on return pipe 65A! Introduction of a case where red rust in the boiler turned into black rust and red water stopped.

There were complaints about red water coming from the hot water faucet in the guest rooms within three years of the hotel's completion, and despite various measures taken, the issue was not resolved at all. As a result, a Polar magnetic water treatment device "Model PI-25F" (3-point set) was installed in a partial bypass method on the return pipe 65A, treating approximately 20% of the circulating water volume. As a result, it was confirmed that the red rust in the boiler had turned into black rust and that the red water had stopped. [Case Study] ■ Issues - Red water occurred despite the piping being made of stainless steel and plastic pipes. - The cause of the red water was corrosion due to an abnormal oxidation reaction of dissolved oxygen (DO) in the water inside the steel hot water heater. ■ Measures - A Polar magnetic water treatment device "Model PI-25F" (3-point set) was installed in a partial bypass method on the return pipe 65A. *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
Price：Other

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Corrosion and scale prevention for chilled water in air conditioning systems [Magnetic Water Treatment Device Vol. 7]

The water quality in the pipe is weakly alkaline! The pH has risen, iron content is low, the water is clear, and the corrosion resistance is significant.

This introduces the corrosion prevention, anti-scaling, and water quality purification effects of chilled and warm water systems. To confirm the effectiveness of the newly installed chilled and warm water pipes, an internal surface inspection was conducted. A very thin, dense, and uniform white (inorganic) corrosion-resistant coating was formed, and there was no occurrence of rust. The water quality inside the pipes was slightly alkaline, and the iron content was within the drinking water standards. The clips in the sample water also showed no signs of rust, resulting in excellent outcomes. [Case Study] - Installation Location: A certain hospital in Fukuoka Prefecture - Installation Date: February 16, 1999 - Polar Model: PI-50F x 2 units - Installation Location: Chilled and warm water equipment for air conditioning (2 units) - Installation Method: Partial (5%) back method *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
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Red water countermeasures (18 years after construction, 85 households) [Magnetic water treatment device Vol. 5]

A complete Polar model PI-50CF is installed with a dedicated pump for independent circulation in a 40m3 water storage tank!

The S.S. Heights in Shimizu, Shizuoka City has reached nearly 20 years since its construction, so we installed a polarizer for the purpose of countering red water (protecting the water supply pipes). One month after installation, there was a slight outflow of rust (rust leaching effect) from the pipes, with iron levels rising from 0.04 to 0.16. Three months later, it decreased to 0.13, and after six months, it returned to 0.04, demonstrating an exceptionally long-lasting rust prevention effect. 【Case Study】 ■ Installation Date: October 16, 2002 ■ Installation Location: S.S. Heights in Shimizu, Shizuoka City (85 households) ■ Model: Polarizer Magnetic Water Treatment Device PI-50CF (Connection Diameter 50A) ■ Installation Method: Installed in an independent circulation system with a dedicated circulation pump in the water storage tank ■ Installation Details: 85 households, 18 years since construction, water storage tank (effective 40m3) ■ Purpose: Corrosion prevention to suppress aging of the water supply pipes *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
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Corrosion prevention effect of newly built air conditioning chilled and hot water【Magnetic water treatment device Vol.5】

The iron content of the treated hot and cold water has decreased from 0.15 to less than 0.05, a reduction of one third!

At the headers of the hot and cold water systems for the Fukui Prefectural Hospital's air conditioning, a polar magnetic water treatment device was installed along with a dedicated circulation pump, and the circulating water was treated using a partial draw-in method. As a result, significant improvements in water quality were achieved in the hot water system, with pH and silica levels showing notable enhancements, and the Langelier index rising from -1.9 (highly corrosive) to +0.9 (non-corrosive). The cold water system also showed significant improvements in water quality, with the Langelier index increasing from -1.9 (highly corrosive) to -0.2 (very slight corrosion). However, the iron content in both the treated hot and cold water decreased from 0.15 to below 0.05, a reduction of one-third, indicating that the risk of corrosion is negligible. [Case Study] ■ Installation Location: Headers of the hot and cold water systems for the Fukui Prefectural Hospital's air conditioning ■ Polar Model - For cold water system: Model PI-50CF × 1 set (Trial operation on November 1, 2003) - For hot water system: Model PI-50CF × 1 set (Trial operation on November 1, 2003) (Size selection was carried out by our company) *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
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[Polar Technology Case] Confirmation of anti-corrosion effect on air conditioning chilled and hot water pipes after 17 years and 5 months.

The remaining lifespan prediction for the cold and hot water pipes is over 20 years! Thanks to Polar's rust prevention effect, there are no rust lumps on the inner surface of the pipes.

This is a case study confirming the rust prevention effect on air conditioning chilled and hot water pipes 17 years and 5 months after polar treatment. Due to the rust prevention effect of the polar treatment, there are no rust nodules on the inner surface of the pipes, which are covered by an extremely thin, dense, and uniform rust prevention film that has absorbed minerals. This film prevents the reaction (corrosion) between oxygen in the water and iron, thereby providing corrosion protection. [Case Study] - Location: A major home improvement center - Installation Date: October 2002 (17 years and 5 months since installation during new construction) - Purpose: Rust prevention measures for newly installed air conditioning chilled and hot water equipment *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
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Sterilization Effect Test Report

Each bacterium was tested three times, and the average value was calculated for the number of bacteria! The test results are clearly presented in a table.

This document introduces the antibacterial effects of using polarizers. A mixed solution of Staphylococcus aureus, Escherichia coli, and Legionella adjusted to approximately 1.0×10^5 CFU/ml was flowed into the polarizer, and the number of viable bacteria before and after was confirmed using culture methods. Each bacterium was tested three times, and the average value was taken as the bacterial count. The test results are presented in an easy-to-understand table, so please take a look. [Contents] ■ Test Request Form ■ Test Product Name ■ Test Purpose ■ Test Method ■ Test Results *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
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Scale prevention and corrosion protection for cooling water systems [Magnetic Water Treatment Device Vol. 12]

Scale prevention and corrosion protection for cooling water systems! Installation of open cooling tower PI-150F (1 unit) with a capacity of 1215 m³/h.

We would like to introduce a case of scale prevention and corrosion protection in the cooling water system at S Lightweight Metal Industry Co., Ltd. in Aichi Prefecture. On April 18, 1999, we installed a PI-150F (1 unit) open cooling tower (1215 m³/h). Photos of the installation are included in the PDF document. Please take a look. 【Case Study】 ■ User: S Lightweight Metal Industry Co., Ltd. (Aichi Prefecture) ■ Purpose: Scale prevention and corrosion protection in the cooling water system ■ Installation Date: April 18, 1999 ■ Model: PI-150F (1 unit) open cooling tower (1215 m³/h) *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
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Red Water Countermeasures (27 years after construction, 271 households) [Magnetic Water Treatment Device Vol. 4]

Everyone is surprised by the speed of the effect! Here’s an example where the red water stopped in about a week after installation.

The Nagoya City M Century Mansion, after 27 years since its construction, began to have red water coming from the taps. Therefore, the board of directors considered various methods for one year and decided to adopt the Polar system. Water was sampled and analyzed from the room next to the manager's office. The red water stopped within about a week of installation. Everyone was surprised by the quick effectiveness. 【Features】 ■ User Name: Nagoya City M Century Mansion (27 years since construction, 271 households) ■ Purpose: Red water countermeasures (2 tanks of 60t receiving water + 1 tank of 30t elevated water) ■ Installation Date: January 25, 2001 ■ Polar Model: 2 units of PI-65 installed in an independent circulation system for each 60t receiving water tank *For more details, please refer to the PDF document or feel free to contact us.

Company：日本セルポ
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Countermeasures for Red Water (2.5 Years After Construction) [Magnetic Water Treatment Device Vol. 8]

All analysis items are within drinking water quality standards! Cases demonstrating effects equivalent to those of chemical treatment.

Tokyo Max Beauty College did not have red water at that time, but it was being treated with chemicals as a future measure against red water. They discontinued that and installed a Polar system, which had been confirmed effective in other buildings, for the purpose of preventing red water. The water quality analysis report one month after installation showed that all analyzed items were within drinking water quality standards. The iron content was also low, and the Polar system demonstrated effects equivalent to the chemical treatment before the installation of this system. Future expectations include prevention of skin irritation. [Case Study] - Installation Location: Tokyo Max Academy Tokyo Max Beauty College (2.5 years after construction) - Installation Date: August 29, 2001 - Polar Model: PI-32CF (3-point set) complete set *For more details, please refer to the PDF document or feel free to contact us.