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

Last Updated：Oct 15, 2025 Aggregation Period:Sep 17, 2025～Oct 14, 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 15, 2025 Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

日本テクノ Nagano//environment
日本セルポ Tokyo//Industrial Machinery
フジクリーン工業 Aichi//Industrial Machinery
4 十字屋 (十字屋グループ） Okayama//Industrial Machinery
5 三進製作所 Aichi//Industrial Machinery

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Water treatment equipment Product ranking

Last Updated：Oct 15, 2025 Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

Well Water Filtration Device TC-12J 十字屋 (十字屋グループ）
Cooling Tower Water System Comprehensive Water Treatment Agent: Evergreen IS-120 エコワンチーム
[Industrial Liquid Filtration / IoT Compatible] Microbubble Precoat Filtration System 三進製作所
4 Non-chemical injection filtration method High concentration MTF iron and manganese removal device レスコ
5 Iron and manganese removal device "SRT Series" 水都工業

Water treatment equipment Product List

61～75 item / All 557 items

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Scale prevention measures for dishwashers in the UK.

We will introduce a case where white calcium has not adhered even after 16 years of use!

In 1970, a "Polar PD-15 (commonly known as Compact-1)" was installed above the water supply pipe under the kitchen sink of Mr. Lynch's house in the UK as a scale prevention measure for the dishwasher, using a full-flow single-pass method. It has been in use for 16 years, and there has been absolutely no scale buildup, with no white calcium deposits anywhere. When compared to the dishwasher of a neighbor 20 meters away who does not have a Polar installed, the neighbor's dishwasher had scale removed in 1989, but two months later, scale reappeared on the device's floor, elements, and filter screen, resulting in a terrible condition. [Measures and Effects] - A "Polar PD-15" was installed above the water supply pipe under the kitchen sink as a scale prevention measure for the dishwasher, using a full-flow single-pass method. - The dishwasher has been in use for 16 years, and there has been absolutely no scale buildup, with no white calcium deposits anywhere. *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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Results of scale prevention measures using hard water in U.S. beauty salons.

Installation of a polarizer for full treatment in the water supply pipe! Introduction of a case where scale was removed and it became clean.

The beauty salon uses a lot of hot water. In particular, Iowa is an area with hard water (water rich in calcium), so the electric water heater's supply system has always required cleaning with acidic chemicals due to scale troubles. A "model: PI-20F" polarizer with a connection diameter of 3/4 inch (20A) was installed for full treatment on the water supply pipe of this beauty salon. As a result, the scale (water stains) that had previously been very dirty was removed, and it became clean, surprising the customers. [Measures and Effects (Excerpt)] - Installed a "model: PI-20F" polarizer for full treatment on the water supply pipe with a connection diameter of 3/4 inch (20A) - The surface of the electric heater only has a soft, thick white film - The inside walls and bottom of the tank also became clean, and the wall surfaces became very smooth *For more details, please refer to the PDF materials or feel free to contact us.

Company：日本セルポ
Price：Other

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Physical water treatment method using a magnetic field of 6000 gauss or higher.

Introducing materials that cover an overview and structure of polarizers, their principles and effects, as well as main installation examples!

This document introduces the physical water treatment method using a polar magnetic water treatment device by Japan Selpo, which operates with a magnetic field of over 6000 gauss. It includes sections such as "Overview and Structure of Polar," "Main Installation Examples for Cooling Water Systems, Warm Water Systems, and Water Storage Tank Systems," and "Main Applications." We invite you to read it. 【Contents (partial)】 ■ Introduction ■ Recent Developments ■ Overview and Structure of Polar ■ Principles and Effects *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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Effect of Open Cooling Towers on Algae Suppression [Magnetic Water Treatment Device Vol. 14]

A comparative test was conducted at a certain public facility in Tokyo! We will introduce a case where water clarity improved with polar treatment.

Two identical cooling towers are arranged in parallel using the same source water, and both cooling towers were cleaned in the same manner before entering the test. One of the cooling towers was equipped with the Polar magnetic water treatment device "PI-40F." The other continued to operate as usual with automatic blowdown using an algae growth inhibitor. The side using the inhibitor showed a significant presence of algae throughout, with a lot of foaming in the water, while the side using the Polar device showed no algae growth at all, and the water clarity improved compared to before. [Test Details] - Two identical cooling towers are arranged in parallel using the same source water. - Both cooling towers were cleaned in the same manner before the test. - One cooling tower was equipped with the Polar magnetic water treatment device "PI-40F." - The chemical treatment side continued operation with automatic blowdown using an algae growth inhibitor. *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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Examples of Softening and Dissolution of Cooling Water System Scale [Magnetic Water Treatment Device Vol. 3]

Comparison before and after use (2.5 months)! The softening and dissolution of the scale was confirmed.

Water treated with magnetic processing using a polarizer causes softening and dissolution of scale. A polarizer model "PI-15(15A)" was installed in the test apparatus to investigate the softening and dissolution outflow of scale in the test pipe. Comparing before the use of the polarizer and 2.5 months after its use, it was found that softening and dissolution of the scale occurred. It is considered that it may take a considerable amount of time to remove scale solely with the polarizer, so while the primary purpose is to prevent scale adhesion, it is believed that it does not have the rapid effectiveness of chemical cleaning for removing adhered scale, but it can prevent scale buildup inside the pipes. [Test Overview] ■ Provider: Environmental Frontier Co., Ltd. (Shizuoka City) ■ Test Period: June 1, 1984, to August 15, 1984 (approximately 2.5 months) ■ Purpose: Does water treated with magnetic processing using a polarizer cause softening and dissolution of scale? ■ Method: A polarizer model "PI-15(15A)" was installed in the test apparatus to investigate the softening and dissolution outflow of scale in the test pipe. *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. 12]

We will introduce a case where the red water completely stopped, the water became clear, and the troubles were resolved!

We conducted a confirmation of the effectiveness of Polar as a measure against red water in hot water supply systems. In large buildings and hotels, after more than 10 years, the dissolved oxygen, chlorine ions, and pH in the water can cause corrosion on the inner surface of the pipelines, leading to red water due to rust in the hot water and bath water, which becomes a significant operational issue. In response to such problems, Polar significantly suppresses the progression of corrosion without the need for chemical additives, resolving the issue of red water. The facts regarding this matter were evaluated by a lining contractor in the residential newspaper "Amenity." [Case Study] ■ Purpose: Confirmation of the effectiveness of Polar as a measure against red water in hot water supply systems. ■ Installation: One unit of Polar model "PI-40F" was installed in a bypass manner on the main pipe to treat 50% of the hot water circulation volume (installed on June 5, 1987). *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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Case Study on Red Rust Removal Effect of Cooling Water (Chiller Water) [Magnetic Water Treatment Device Vol. 1]

Conducting a test to confirm the effectiveness of rust removal! After the test, we will introduce cases where the rust was beautifully removed.

We would like to introduce the test we conducted to confirm the effectiveness of Polar in removing red rust. The water tank used was made from a drum that had been utilized during fire training, and it was quite rusty both inside and out. The purpose of the test was to observe how the rust on the inside and bottom, which came into contact with Polar water, would change. During the test, the rust inside the tank (drum) caused the water to become red and murky, making the bottom invisible. However, after the test, the rust on the inner walls and bottom that had been in contact with Polar water was completely removed. It is worth noting that the upper 10 cm section of the inner wall, which did not come into contact with Polar water, remained unchanged from before the test. [Test Overview] ■ Duration: February 23, 1989 - March 16, 1989 ■ Location: Underground boiler room of a certain automobile dealer's headquarters in Nagano City ■ Purpose - To remove the red rust (Fe203) generated inside the sample pipe by Polar, and to see if it can be reduced to black rust (Fe304). *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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Case Study on Scale Prevention in Closed Cooling Towers [Magnetic Water Treatment Device Vol. 6]

We will introduce a case where we successfully confirmed the absence of scale attachment and saved on water costs!

On October 24, 2000, a polar type "PI-25CF" was installed on the spray pipe of the cooling tower using a partial bypass method, and automatic blow management was conducted without chemicals at the conventional electrical conductivity of 60 ms/m. On November 22, 2000, one month after using the polar system, a check was conducted for scale deposition in the heat exchange section of the cooling tower, and no scale was found, confirming the effectiveness of the polar system. At 3.5 months of using the polar system, an extreme experiment was conducted by further concentrating the electrical conductivity to 120 ms/m to save on water supply, and it was confirmed that there was no scale deposition, successfully reducing water costs. [Challenges and Measures] ■ The supply water (well water) had a pH of 6.7, electrical conductivity of 30 ms/m, silica 56 mg/L, M-alkalinity 76 mg/L, and calcium 31 mg/L, making water quality management very challenging. ■ Installation of model "PI-25CF" - A three-point set including a magnetic strainer, polar main unit, and flow meter. *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 Countermeasures (Water Supply and Hot Water Supply for Large Buildings) [Magnetic Water Treatment Device Vol. 10]

We installed a polar magnetic water treatment device! We will introduce a case where the red water completely improved and stopped after 6 months.

After 25 years since construction, the water supply and hot water became discolored due to the white gas pipes, causing discomfort. As a countermeasure against the red water and to protect asset value, we installed the "Polar Magnetic Water Treatment Device." Subsequently, improvements of over 90% were confirmed by the 30th to 40th day, and after 6 months, the red water completely stopped. The antibacterial activated carbon filter "PDF-1" removes chlorine odor and trihalomethanes, which are carcinogenic substances, allowing for delicious tea and water to be consumed as magnetically activated water in a strong magnetic field of 6000 gauss, which received great acclaim. 【Case Study: Water Supply】 ■ August 25, 2000 - Installed the Polar model "PI-40CF" in a 30m3 water storage tank. ■ 45 days after Polar treatment - Red water stopped with iron content at 0.16mg/L. ■ 6 months after Polar treatment - Both water supply and hot water faucets were opened, passing without red water. *For more details, please refer to the PDF materials or feel free to contact us.

Company：日本セルポ
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Corrosion prevention effect of chilled and hot water in hospital air conditioning systems [Magnetic Water Treatment Device Vol. 4]

A case where an electric control valve, which had failed and been replaced six times before installation, experienced no failures after installation.

On March 3, 2003, a polarizer was installed (on February 1, 2000), and since three years have already passed, maintenance (management) was conducted. After the installation of the polarizer, the red rust water turned into clear water about a week after treatment, and for the following three years, the water has remained clear and clean, indicating that the anti-corrosion effect can be evaluated as extremely significant. Additionally, before installation, about six electric control valves were malfunctioning and had to be replaced, but after installation, there have been no malfunctions, so the economic effect is considered to be very large. [Case Study] - Installation Location: Certain Medical Center in Tokyo - Installation Date: February 1, 2000 - Model: PI-25CF x 1 unit - Target Equipment: Air conditioning chilled and hot water system - 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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Scale Prevention for Absorption Chiller-Heating Water Generators [Magnetic Water Treatment Device Vol. 5]

Due to the slime suppression effect, there is no slime at all! The prevention of scale adhesion and the anti-corrosion effect have been significantly demonstrated.

We conducted an effectiveness confirmation for approximately 1 year and 3 months using only the Polar magnetic water treatment device on Sanyo's "400USRT" chilled and hot water generator. The upper water tank of the box-type cooling tower is covered with a lid to block sunlight, which is effective in preventing the growth of water algae. Due to Polar's slime suppression effect, there was no slime at all, and the prevention of scale adhesion and corrosion effects were significantly pronounced, receiving positive evaluations from both users and manufacturers. Additionally, the LTD (temperature difference) as an evaluation of heat exchange rate was also normal and favorable. 【Case Study】 ■ Application: Scale, corrosion, and slime countermeasures for the 400USRT absorption chilled and hot water generator ■ Installation Location: Ote Electronics and Optics Manufacturer (Company N), Kumagaya City, Saitama Prefecture ■ Installation Date: End of July 2003 (installed by a major subcontractor) ■ Polar Model: PI-65F (Set of Polar main unit, magnetic strainer, and flow meter) ■ Installation Method: Installed using a pump draw method for 10% of the cooling circulation water volume *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 measures for turbo refrigeration units used in air conditioning [Magnetic water treatment device Vol. 4]

A demonstration experiment aimed at comparing the effects of polar magnetic water treatment devices and chemical treatment.

Among the numerous manufacturers selling magnetic water treatment devices, there was a strong demand from major general contractors to confirm the effectiveness compared to the conventional chemical treatment methods. With the cooperation of subcontractors, comparative tests were conducted. For the university hospital, an anti-legionella slime control agent was applied weekly at a rate of 500cc using a manual sprinkling method, completely avoiding the use of conventional chemical injection devices. This was carried out primarily during the extremely hot summer months. As a result, the effectiveness of the Polar magnetic water treatment device, which has a powerful magnetic force of over 6000 gauss, was confirmed and evaluated. [Case Study] ■ Purpose and Application - Prevention of scale adhesion, corrosion, and slime suppression for a 150RT turbo refrigeration unit. ■ Installation Location: A certain university hospital in Saitama Prefecture. ■ Start Date of Test Operation: April 1, 1998 (installed by a major subcontractor). ■ Polar Model: PI-65F (set including Polar main unit, magnetic strainer, and flow meter). ■ Installation Method: Installed with a bypass method for more than 15% of the circulating water volume of 1950L/min. *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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Case study of the new chilled and hot water pipes after 5 years [Magnetic Water Treatment Device Vol. 3]

Confirmed the formation of an extremely thin, dense, and uniform corrosion-resistant coating in white (inorganic).

We would like to present the results of the effectiveness confirmation of the newly installed chilled and hot water pipes after five years. Nearly five years have passed since the installation of the polar system, and an internal inspection of the pipes was conducted to confirm the effectiveness of the newly installed chilled and hot water pipes. It was confirmed that an extremely thin, dense, and uniform white (inorganic) anti-corrosion coating had formed. Due to the protection provided by this coating, there was no occurrence of rust on the inner surface, confirming the excellent anti-corrosion effect of the polar system. 【Case Study】 ■ Installation Purpose: Anti-corrosion, anti-scaling, and water quality purification effects for chilled and hot water (new installation) ■ Installation Location: Chilled and hot water piping for air conditioning at Kyudenko Co., Ltd. Fukuoka Branch Building ■ Installation Date: February 1999 ■ Model: PI-40F (3-point set) x 2 units ■ Installation Location: Chilled and hot water equipment for air conditioning (2 locations: 2 units) ■ Installation Method: Installed with a partial backflow method for more than 5% of the circulating water volume *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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Examples of Corrosion Prevention Effects of Cold and Warm Water [Magnetic Water Treatment Device Vol. 2]

Comparing water samples before and after treatment, the corrosion prevention effect is clear at a glance!

We will introduce the actual corrosion prevention effects of cold and warm water systems. Before treatment, we conducted two water sampling (500cc each), took photographs, and performed water quality analysis. After 1 to 3 months post-treatment, the water becomes clear, so we will conduct water sampling in the same manner as before and by comparing the results, the corrosion prevention effect can be clearly confirmed. (Iron units are in mg/L) The PDF document includes comparative photographs. Please take a look. 【Comparison Case Lineup (Excerpt)】 ■ A certain university in Akita ■ A supermarket in Oga City, Akita ■ A certain general company, Fukushima factory ■ A certain highway in Akita *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 Magnetic Water Treatment Device "Rust Prevention, Scale Countermeasures, Slime Suppression"

Prevents rust and enables the long lifespan of piping. Here are examples of effectiveness in air conditioning chilled and hot water piping.

The "Polar Magnetic Water Treatment Device" is a product that can prevent rust, scale adhesion, and slime formation by being installed in piping. It has a delivery record of over 6,000 units in Japan. It can be installed compactly and is usable in various locations, including cooling towers, chillers, and various heat exchangers. It does not use chemicals for treatment, and maintenance is easy. Partial treatment of circulating water is possible at 5-20%. [Effect Example in Air Conditioning Cold and Hot Water Piping] Location: A major home improvement center Condition: Installed during construction, 17 years and 5 months have passed Effect: A thin, dense, and uniform rust prevention film that incorporates minerals suppresses the reaction between oxygen and iron in the water, achieving a piping system without rust lumps compared to untreated piping. *For more details, please refer to the PDF document or feel free to contact us.