Notice of participation in "VIETWATER 2025" from Wednesday, October 22, 2025, to Friday, October 24, 2025. {Case studies are also being introduced!!}

Exhibits high airtightness and valve seat sealing performance! Excellent in corrosion resistance, chemical resistance, and cleanability.

A diaphragm valve is a type of valve that has a structure for opening and closing the flow path using a flexible diaphragm (membrane) made of materials such as rubber. The "Wear-type diaphragm valve: Type 400" is the basic form of a diaphragm valve that has a weir in the flow path. The fluid passage section is streamlined and has no pocket areas, which minimizes liquid accumulation and provides self-cleaning properties. Due to the valve's structure, it exhibits high airtightness and seat sealing performance. There is a wide variety of materials available for the body and diaphragm, allowing it to accommodate a broad range of fluids. ▼Applicable fields: Chemicals, environmental and water treatment, steel, shipping, pharmaceuticals, food, semiconductors, power generation, etc. *For more details, please refer to the catalog (P6–P14) or feel free to contact us. (The English and Chinese versions of the catalog can be downloaded from the catalog page of the special website below.)

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The flow path is close to straight, with a structure that has low pressure loss and minimal liquid accumulation! It is suitable for fluids containing sludge, suspended solids, and more!

A diaphragm valve is a type of valve that has a structure that opens and closes the flow path using a flexible diaphragm (membrane) made of materials such as rubber. The "Straight Type Diaphragm Valve: 500 Series" features a flow path that is nearly linear (straight), resulting in a structure with minimal pressure loss and liquid accumulation. It is suitable for fluids containing viscous fluids, fibrous fluids, slurries, sludge, and suspended solids. ▼ Application Fields: Water treatment plants, final treatment facilities, etc. *For more details, please refer to the PDF materials or feel free to contact us. (The English and Chinese versions of the catalog can be downloaded from the catalog page of the special website below.)

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Introduction of lining products that prevent deterioration from corrosion and chemicals!

Introducing the "Lining Type Diaphragm Valve" with excellent resistance to corrosion and chemicals. It is utilized in a wide range of fields such as chemicals, environmental and water treatment, pharmaceuticals, and semiconductors. It can be applied to countermeasure against corrosive fluids, gap corrosion, and metal ion elution. 【Product Lineup (Example)】 "Model 430": Hard natural rubber lining on a base material of FC200 or FCD-S "Model 459": PFA lining on a base material of FCD-S or SCS13 "Model 460": ETFE lining on a base material of FCD-S "Model 450": Polyethylene lining on a base material of FC200 "Model 480": Porcelain lining on a base material of FCD-S *Sanitary specification diaphragm valves are also available. *For more details, please refer to the catalog or feel free to contact us.

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Aiming to create environmentally friendly valves... "The entire company is united in promoting the continuous reduction of environmental impact!" "ISO 14001 certification obtained!"

Japan Diavalve Co., Ltd. aims to be a sustainable company that balances environmental activities and economic activities amid the worsening global environmental issues. Recognizing the commitment to environmental conservation as one of the important pillars of its business activities, the company obtained ISO 14001 certification in 2008 and is working together as a whole company on environmental activities. *For more details, please refer to the PDF materials or feel free to contact us. (The English and Chinese versions of the catalog can be downloaded from the catalog page of the special website below.)

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We have compiled a table that clearly summarizes the applications and examples of diaphragm valves!

This document includes applications and examples of diaphragm valves. We present reference examples of valve specifications in an easy-to-understand table categorized by application and equipment! 【Published Applications】 ■ Water treatment facilities ■ Chemicals ■ Pharmaceuticals ■ Food ■ Electrical materials & semiconductors ■ Steel & non-ferrous metals ■ Power generation *For more details, please refer to the PDF document or feel free to contact us.

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We would like to express our congratulations on the continued prosperity of your esteemed company. Our company will be exhibiting at the following trade show, where we will introduce a number of products, including new ones. We sincerely apologize for the inconvenience during your busy schedule, but we would like to invite you to attend this event. 【 Exhibition Name 】 31st Measurement and Measurement Exhibition INTERMEASURE 2024 Official Website: https://intermeasure.org/itms2024/ 【 Dates 】 From __ (Wednesday) to __ (Friday), 202_ 【 Venue 】 Tokyo Big Sight (Tokyo International Conference Center) East Hall (Booth Number: ___) 【 Exhibited Products 】 - Air Leak Tester - Hydrogen Leak Detector - Pin Hole (Reference Test Piece) and more. For more details, please refer to the "Related Materials" (PDF file) below.

Nitto Kohki will exhibit at the "H₂ & FC EXPO Spring International Hydrogen and Fuel Cell Exhibition" held at Tokyo Big Sight, West Exhibition Hall 2, from February 28 (Wednesday) to March 1 (Friday), 2024. [Booth Number: W14-63] The quick fluid coupling "Coupler" is a product that allows for the rapid connection and disconnection of piping for various fluids such as air, water, oil, and chemical solutions. At this exhibition, we will primarily showcase the high-pressure hydrogen filling quick fluid coupling "HHV Coupler."

☆☆☆ Urgent Visit to Japan & Emergency Event Announcement ☆☆☆ Dr. Yuval Levy, CEO of ISCFDC and developer of EPPIC, who has been involved in CFD research at NASA Ames Research Center for about five years, is coming to Japan! He will demonstrate and explain advanced CFD technologies, application cases, and the latest features of EPPIC himself. □ Date and Time □ July 31, 2026 (Friday) 13:00-18:00 (Registration starts at 12:30) <Part 1: Post-Processor Session> 13:00-16:40 <Part 2: Pre-Processor Session> 16:50-17:50 <Networking Event> 18:10-19:40 □ For more details □ Visit the Hulinks page https://www.hulinks.co.jp/seminar/eppic/

[Viewer Benefits Available] Explaining Tips for LC in a Short Seminar Do you have concerns such as "I'm unsure about column selection," "I'm struggling to optimize analysis conditions," or "I have challenges analyzing compounds with weak retention" in LC analysis? Waters will hold a seminar titled "Must-Listen! Advanced LC Application Seminar" where you can learn practical LC analysis know-how in just 30 minutes. In this seminar, we will cover useful topics in a total of six sessions, including tips for choosing detectors, how to utilize reverse phase columns, scaling up to preparative LC, approaches for analyzing hydrophilic and highly polar compounds, case studies of low-adsorption HPLC, and improving purity through solid-phase extraction. Each session is scheduled to start at 15:00. Event Themes: • October 6 (Tuesday) - Session 1: Tips for Choosing Detectors • October 13 (Tuesday) - Session 2: Tips for Choosing Columns • October 21 (Wednesday) - Session 3: Tips for Preparative LC • October 27 (Tuesday) - Session 4: Approaches for Analyzing Hydrophilic and Highly Polar Compounds • November 5 (Tuesday) - Session 5: Case Studies of Low-Adsorption HPLC • November 10 (Tuesday) - Session 6: Tips for Solid-Phase Extraction

In liquid biopsy research, we will introduce a technical evaluation of proteome analysis to obtain reliable data from trace plasma, as well as case studies on data quality verification using the Contamination Index and Simple Western.