ダイワ工業 List of Products and Services

Our company analyzes the components of various scales, such as plant piping and cooling towers (water-cooled cooling towers), and proposes suitable chemicals based on the components. Since the components of various scales include a wide range of substances such as iron, calcium, magnesium, and silica, using chemicals that are not appropriate for the specific scale components will not yield effective results. If the scale in cooling towers (water-cooled cooling towers) is left untreated, it not only reduces heat exchange efficiency but can also lead to significant operational issues. Additionally, measures are necessary not only for scale prevention but also for addressing water quality deterioration caused by microbial corrosion. From component analysis of scales to testing truly effective chemicals, we go beyond merely selling chemicals and provide results tailored to our customers' conditions! Daiwa Industrial has over 50 years of accumulated experience and numerous achievements across a wide range of industries, including government agencies, power, steel, chemicals, paper, electricity, food, hotels, hospitals, and printing! *For more details, please refer to the PDF materials or feel free to contact us.

• Chemicals

We would like to introduce the "Dianol Series (Corrosion Inhibitor)" that we handle. By forming a protective film on equipment and piping where cooling water flows, it effectively suppresses corrosion damage, maintaining equipment integrity, thermal efficiency, and smooth operation. When using this product, we conduct water quality tests once a month and propose optimal water management. 【Product Examples】 ■ Dianol A-101 ■ Dianol A-106 ■ Dianol A-201, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

The "Dianol Series (Bactericide and Algaecide)" is a bactericide and algaecide that has extremely low corrosion to metals. When using this product, we conduct water quality tests once a month and propose appropriate water management. We also offer bactericides and algaecides that can be used as measures against Legionella bacteria, so please feel free to consult us. 【Product Examples】 ■ Dianol A-10S ■ Dianol A-380 ■ Dianol A-700, etc. *For more details, please refer to the PDF materials or feel free to contact us.

• Chemicals

We would like to introduce the "Dianol Series (Scale Dispersant)" that we handle. Through chelation effects, threshold effects, and dispersion effects, it suppresses the generation of scale, demonstrating excellent effectiveness in equipment maintenance, maintaining thermal efficiency, and ensuring smooth operation. When using this product, we conduct water quality tests once a month and propose optimal water management. 【Product Examples】 ■ Dianol A-5 ■ Dianol B-21 ■ Dianol B-22, etc. *For more details, please refer to the PDF materials or feel free to contact us.

• Chemicals

We would like to introduce our "Dianol Series (Corrosion and Scale Dispersant)." The occurrence of corrosion and scale damage leads to material thinning and perforation of heat exchanger tubes, structural components of equipment, and piping, resulting in damage and energy waste due to decreased heat exchange efficiency, which hinders the smooth operation of equipment. Our company offers the Dianol Series, which can solve these corrosion and scale issues with a single chemical. [Product Examples] ■ Dianol A-10 ■ Dianol A-100 ■ Dianol A-101, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

We would like to introduce our "Dianol Series (Comprehensive Water Treatment Agent)." This all-in-one comprehensive water treatment agent possesses effects against the three major issues that occur in cooling water systems: corrosion, scale, and slime. Since it is an all-in-one solution for these issues, there is no need to handle multiple water treatment agents, which can reduce maintenance effort. [Product Examples] ■ Dianol A-410 ■ Dianol A-440 *For more details, please refer to the PDF materials or feel free to contact us.

• Chemicals

The "Dianol Series (cleaning agents)" is a cleaning agent that demonstrates excellent cleaning effects against various scales (iron, calcium, magnesium, silica) and slime, including Legionella bacteria. In cooling towers, issues such as reduced thermal efficiency occur due to the adhesion of scale and slime to heat exchangers. Regular maintenance is important, but these issues can be improved through periodic cleaning. 【Product Examples】 ■ Dianol A-200 ■ Dianol A-300 ■ Dianol A-200SK, etc. *For more details, please refer to the PDF materials or feel free to contact us.

• Chemicals

The "Daiwa-type BC automatic cleaning device" automatically removes obstacles such as scale and slime that adhere to the inside of tubes, while simultaneously preventing corrosion of various equipment. It can be utilized in various scenarios, including the condensers of steam turbines in thermal power generation facilities, various condensers and coolers for ships, and coolers for large air compressors. 【Operating Principle】 The dedicated cleaner brush is moved by the flow of cooling water to clean the inside of the cooling tube. The dedicated cleaner brush alternates between normal operation and backwashing operation. This results in automatic cleaning through repeated friction of the brush. As a result, the inside of the cooling tube can always maintain a clean state free from scale and slime. 【Features】 ■ Automatically cleans the inside of the tube by alternating between normal operation and backwashing operation. ■ Significantly suppresses corrosion at the tube ends, which are prone to corrosion, through a cap effect. ■ Offers brushes suitable for various diameters. ■ Almost never damages thin tubes. ■ Improved heat exchange efficiency due to scale removal leads to reduced fuel costs. *For more details, please refer to the PDF materials or feel free to contact us.

• Other cleaning machines

"Daiwa Ace" is a filtration system that uses floating filter media made from a special foamed resin, employing a floating layer method. By adjusting the filtration speed and contact time, it achieves two functions in one unit: precise filtration aimed at removing algae and biological membrane filtration aimed at improving water quality. Backwashing is performed using aeration with air, allowing for high flow rates while minimizing clogging, making it capable of handling large volumes of water treatment. Please feel free to contact us when needed. 【Features】 ■ Uses floating filter media made of foamed resin (upward flow type) ■ Backwashing is performed using aeration with air ■ Large contact area per unit volume ■ Capable of handling a wide range of water treatment including biological and precise filtration ■ Only the worn-out filter media is replenished, no need for complete media replacement *For more details, please refer to the PDF document or feel free to contact us.

• Filtration Equipment

The "Daiwa Ace (Biological Membrane Treatment)" is a high-performance and compact filtration system that fully utilizes the water purification capabilities of microorganisms. It uses foamed resin as a carrier for the microorganisms, and the filter material is irregularly shaped with a large surface area, allowing it to retain a significant number of microorganisms, making it possible to operate under high BOD volumetric loads. Additionally, it ensures efficient contact between the biofilm and water, allowing for a space-saving facility design. 【Features】 ■ As a floating filter material, it can be backwashed with air, resulting in less backwash water usage. ■ It can be used semi-permanently, leading to less frequent replacements compared to sand filtration. ■ It does not experience issues such as mud balls or channeling phenomena that occur with sand filtration. *For more details, please refer to the PDF document or feel free to contact us.

• Filtration Equipment

The "Daiwa Ace (Precision Filtration)" is a high-performance and compact filtration system capable of removing suspended solids (SS). This system is characterized by the use of foamed resin as the filter medium. The filter medium is amorphous and has a large surface area, resulting in efficient water contact, which leads to a high capture efficiency of suspended solids (SS) and allows for a space-saving facility. 【Features】 ■ As it uses floating filter media, backwashing with air is possible, resulting in less backwash water usage. ■ It can be used semi-permanently, leading to less frequent replacements compared to sand filtration. ■ It does not experience issues such as mud balls or channeling phenomena that occur with sand filtration. *For more details, please refer to the PDF document or feel free to contact us.

• Filtration Equipment

The "Daiwa Ace (Biofilm and Precision Filtration System)" is a high-performance and compact filtration system capable of processing both biofilm filtration and precision filtration in a single device. It uses a material that is amorphous with a large surface area, providing excellent water contact efficiency. Additionally, by adjusting the filtration speed, it allows for both biofilm filtration and precision filtration. In other words, by installing this product, you can achieve dual processing (biofilm filtration and precision filtration) with one unit. 【Features】 ■ As it uses floating filtration media, it can be backwashed with air, resulting in less backwash water. ■ It can be used semi-permanently, leading to less frequent replacements compared to sand filtration. ■ It does not experience issues such as mud balls or channeling phenomena that occur with sand filtration. *For more details, please refer to the PDF materials or feel free to contact us.

• Filtration Equipment

Our company has many years of experience and achievements as a comprehensive chemical manufacturer specializing in water treatment and energy-related products. We handle a wide range of comprehensive chemicals, including cooling tower water treatment chemicals such as the corrosion inhibitors "Dianol A-10" and "Dianol A-100," as well as boiler-related chemicals and wastewater treatment chemicals. 【Product Line】 ■ Cooling tower water treatment chemicals ■ Boiler-related chemicals ■ Wastewater treatment chemicals ■ Others *For more details, please contact us.

• Chemicals

Daiwa Industrial handles various construction projects, including cooling tower maintenance, condenser maintenance and regular inspections, boiler maintenance and regular inspections, and filtration equipment maintenance and replacement. The "cooling tower cleaning project" employs cleaning methods (chemical cleaning or high-pressure cleaning) suited to the condition and purpose of each cooling tower, removing scale and slime to restore cooling functionality. Additionally, the "boiler sandblasting cleaning project" uses high-pressure air to spray special sand (abrasive) to powerfully remove scale adhered to the inside of the boiler, restoring combustion efficiency. There is no concern about corrosion, and the construction period can be shortened. 【Features】 <Cooling Tower Cleaning Project> ■ By adopting cleaning methods (chemical cleaning or high-pressure cleaning) suited to the condition and purpose of each cooling tower, scale and slime are removed, restoring cooling functionality. <Condenser Cleaning Project> ■ Cleans the small tubes of the condenser, removing adhered scale and slime. ■ Cleaning the condenser increases the heat exchange efficiency of the condenser and restores the vacuum level. *For more details, please refer to the PDF materials or feel free to contact us.

• Other contract services

"Sandblasting work" is a process that uses high-pressure air to spray special sand (abrasive) to powerfully remove scale that has adhered to the inside of boilers. It can clean areas that are unreachable by manual labor without causing any damage to steam pipes or heater tubes in a short period of time. Additionally, since sandblasting is a dry method, there are no concerns about low-temperature corrosion after the work is completed, and there are no issues with wastewater treatment or corrosion occurrence that can arise after wet method construction. [Features] - Can be cleaned in a short time - No damage to steam pipes or heater tubes - Capable of cleaning areas that are unreachable by manual labor - No issues with wastewater treatment or corrosion occurrence after wet method construction *For more details, please refer to the PDF materials or feel free to contact us.

• Other cleaning machines

Our company provides "cooling tower cleaning" not only through chemical cleaning but also through physical cleaning methods such as high-pressure washing. In cooling towers, issues such as reduced thermal efficiency occur due to the adhesion of scale and slime to heat exchangers. As a provider of water treatment technology, we offer cleaning methods tailored to each cooling tower based on our extensive experience. [Cleaning Case Examples] ■ High-pressure cleaning work ■ Chemical cleaning work *For more details, please refer to the PDF materials or feel free to contact us.

• High pressure cleaner

We would like to introduce our "Piping Cleaning Work." With chemical cleaning, we can clean pipes without disassembly, allowing for both reduced construction time and cost savings. As a provider of water treatment technology, we offer cleaning methods tailored to each type of piping based on our extensive experience. [Features] ■ Ability to clean pipes without disassembly ■ Possible to reduce both construction time and costs *For more details, please refer to the PDF document or feel free to contact us.

• Piping Materials

We provide not only standard high-pressure cleaning but also a more powerful cleaning service for condensers that can effectively remove scale and slime. By cleaning the condenser, the heat exchange efficiency of the condenser is improved, and the vacuum level is restored. As a provider of water treatment technology with extensive experience, we can propose cleaning methods tailored to each condenser, so please feel free to consult with us. 【Examples of Cleaning Applications】 ■ Condensers for steam turbines in power generation facilities ■ Various condensers for marine use ■ Heat exchangers and coolers in oil and chemical plants ■ Coolers for large air compressors *For more details, please refer to the PDF document or feel free to contact us.

• Other cleaning machines

Daiwa Industrial Co., Ltd. is a specialist in comprehensive water treatment that addresses the challenges of "energy" and "environment" related to water. With many years of experience and diverse achievements, we pursue solutions to issues related to water treatment. We strive to provide high quality and meticulous service. In particular, our precision and biofilm filtration system "Daiwa Ace" has been highly evaluated by public certification organizations such as the Ministry of the Environment's technology verification project and the technical review certification of the Public Works Research Institute. 【Business Activities】 ■ Manufacturing and sales of water treatment chemicals for cooling towers and boilers ■ Manufacturing and sales of water treatment equipment for wastewater using precision/biofilm filtration systems ■ Sandblasting work, cleaning work for condenser tubes (heat exchangers), and sales of automatic cleaning devices *For more details, please refer to the PDF materials or feel free to contact us.

• Water treatment equipment