Product Categories
Featured products
Products/Services（50items）
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NDV 2-stage open/close air-operated drive unit 2-stage open/close ball valve
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![[New Product] EX-Bio Clean Diaphragm Valve](https://image.mono.ipros.com/public/product/image/44a/2001527789/IPROS1588334368283945592.png?w=280&h=280)
[New Product] EX-Bio Clean Diaphragm Valve
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Rapid opening and closing handle - Bio-clean diaphragm valve
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Dead space countermeasure products
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Glass-lined diaphragm valve "440 (25/05) type"
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Y-shaped 3-way ball valve (Y300 type)
news list
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![[Catalog Revision] Diaphragm Valve (Japanese/English/Chinese) ・Ball Valve (English/Chinese) | FAQ Collection Now Available](https://image.mono.ipros.com/public/news/image/1/202914/IPROS6941200909710662256.png?w=280&h=280)
[Catalog Revision] Diaphragm Valve (Japanese/English/Chinese) ・Ball Valve (English/Chinese) | FAQ Collection Now Available
We have started distributing the revised version of the catalog below. We hope it will be useful for selecting valves in your daily operations. We would be grateful if you could gain a deeper understanding of our products. ◇Diaphragm Valves: We handle butterfly valves that excel in sealing performance and flow control. ■Japanese version "No.C302-05" ◇Ball Valves: In addition to the standard fire-safe type, you can choose from a wide range of options, including multi-port valves and V-port valves, tailored to your needs. ■Japanese version "No.B302-13" *If you would like to receive a catalog, you can apply through the inquiry page. Please feel free to contact us if you have any questions or concerns. We also have a FAQ section available, so please check it out along with the related catalogs below.
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We have released a company introduction video.
Introduction to Our Company's Business and Product Videos We are introducing our initiatives and products through videos. Please feel free to take a look.
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Notice of Summer Collective Vacation for Fiscal Year 2026
Our company will be closed for a company-wide holiday during the period below. We apologize for any inconvenience this may cause and appreciate your understanding. Summer holiday period: August 13 (Thursday) to August 14 (Friday), 2026 Inquiries received during this holiday period will be addressed sequentially starting from August 17 (Monday) after the holiday.
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Notice of Renewal of "NDV Company Profile"
We have renewed our company brochure. It now provides clearer information about our business activities, product information, and technologies and initiatives. Please take a look.
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![Thank you for visiting the 28th Interphex Japan Exhibition from May 20 (Wednesday) to May 22 (Friday) [Nihon Diavalve].](https://image.mono.ipros.com/public/news/image/1/2058381/IPROS12740552981794040222.png?w=280&h=280)
Thank you for visiting the 28th Interphex Japan Exhibition from May 20 (Wednesday) to May 22 (Friday) [Nihon Diavalve].
We exhibited at the "28th Interphex Japan Exhibition," held at Makuhari Messe from May 20 (Wednesday) to May 22 (Friday). Thank you very much for visiting our booth despite your busy schedule. 【Details of Exhibits】 ■ New Product: EX-Bioclean Diaphragm Valve ■ Renewal: Glass-Lined Diaphragm Valve ■ Products Excellent for Dead Space Solutions ■ Corrosion-Resistant Valves for Sanitary Applications ■ Sanitary Butterfly Valve for Powder and Granule Discharge *For more details, please download the catalog or contact us. (The catalog can be downloaded from the catalog page of the special website below.) *If there were any requests or questions that we could not address at the venue, please feel free to contact us.
Japan Diaphragm Valve offers high-quality diaphragm valves, ball valves, and butterfly valves.
Since its founding in 1955, our company has made customer satisfaction (CS) — that is, "providing products that satisfy our customers" — the fundamental management policy. For over 60 years, we have supplied products such as diaphragm valves, ball valves, and butterfly valves tailored to our customers' needs. By providing these products across a wide range of industrial sectors, including pharmaceuticals, chemicals, semiconductors, and steel manufacturing, as well as in public sectors such as nuclear and thermal power generation, water supply and sewage, and waste treatment facilities, we take pride in contributing to the development of economic activities and the creation and maintenance of an environmentally sustainable society. Moving forward, we will continue to respond to our customers' requests and strive to be of service to society, with all employees making every effort. 【Main Areas of Service】 We provide a wide range of valves across various sectors, from industries such as pharmaceuticals, chemicals, semiconductors, and steel manufacturing to public sectors like nuclear and thermal power generation, water supply and sewage, and waste treatment facilities. ■ ISO 9001 and 14001 Certification Obtained *For more details, please download our company brochure or contact us.