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  6. Bio-clean diaphragm valve [air-operated/stainless steel type]

Bio-clean diaphragm valve [air-operated/stainless steel type]

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last updated:Jun 17, 2026

Nippon Daiya Valve Co., Ltd.
Nippon Daiya Valve Co., Ltd.
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Prevents the generation of foreign substances due to coating peeling! Air-operated ON-OFF valve made of stainless steel with excellent corrosion resistance. Compact and buff-polished for excellent cleanability.

This product is an ideal valve for manufacturing equipment in pharmaceuticals, bioprocesses, cosmetics, food, and semiconductors. The air-operated ON-OFF valve is available in the stainless steel drive model 'BPO1400N type 05S to 16S'. Since painting is not required, it prevents the occurrence of foreign substances due to peeling of the coating, and a retaining ring method is used to secure the bonnet and cylinder. With minimal unevenness and compact design, along with buff polishing, it offers excellent cleanability. 【Features】 ■ All stainless steel construction with excellent corrosion resistance ■ Exterior shape with superior cleanability ■ Significant improvement in smooth operation and durability *For more details, please refer to the catalog (P15-16) or feel free to contact us. (English and Chinese versions are available upon request!)

    valve
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Bio-clean diaphragm valve [air-operated/stainless steel type]

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  • Related Link - http://www.ndv.co.jp/
  • Special site - Product/service details - https://pr.mono.ipros.com/ndv/product/

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【Specifications (Excerpt)】 ■Model: BPO (BPC, BPN) 1400N Type ■Drive Unit Model: 05S/07S/09S/12S/16S ■Operation Method ・Single Acting: Reverse Acting BPO (Spring Closed/Pressure Open), Direct Acting BPC (Spring Open/Pressure Closed) ・Double Acting: BPN (No Spring, Pressure Open/Pressure Closed) ■Applicable Nominal Diameter (DN): 8 to 50 ■Drive Unit Material ・Cylinder: SCS13 #300 Buff Polished ・Bonnet: SCS13 #200 Buff Polished or Precision Cast Surface *For more details, please refer to the catalog (P15-16) or feel free to contact us. (English version, Chinese version available upon request!)

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For more details, please refer to the catalog (P15-16) or feel free to contact us. (We have English and Chinese versions available for those who need them!)

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NDV "Sanitary Related Valves" Comprehensive Catalog

NDV "Sanitary Related Valves" Comprehensive Catalog

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News about this product(11)

New Product: EX Bio-Clean Diaphragm Valve / Product Renewal: Glass Lined Diaphragm Valve

Free invitation with pre-registration! Announcement of participation in the 28th Interphex Japan Exhibition.

  • Seminar・Event

Our company will be exhibiting at the 28th Interphex Japan, which will be held at Makuhari Messe from May 20 (Wednesday) to May 22 (Friday). This exhibition is one of the world's leading events where specialized technologies from the pharmaceutical and cosmetics industries are showcased. We will be presenting a variety of valve products that are optimal for manufacturing processes in pharmaceuticals and biotechnology, including our "Bio-Clean Diaphragm Valve" series. [Highlights of Our Exhibit] ◆ New Product: "EX-Bio Clean Diaphragm Valve" A next-generation diaphragm valve utilizing a new sealing structure! Officially launching this summer! ◆ First-ever Mini Session at this Exhibition! We will hold a mini session on the "EX-Bio Valve" that can only be heard at this exhibition. ◆ Renewed Products in Response to Many Requests! The "Glass-Lined Diaphragm Valve" has been renewed! ◆ Additionally, we will showcase various sanitary valve products that are ideal for manufacturing equipment in pharmaceuticals, cosmetics, food, and semiconductors! We sincerely look forward to your visit! For more details, please refer to the related document "Invitation to the 28th Interphex Japan (General Invitation)" below or feel free to contact us.

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PFA lining diaphragm valve

Notice of participation in FLOWTECH CHINA 2025 from June 4 (Wednesday) to June 6 (Friday), 2025.

  • Seminar・Event

Nihon Daiya Valve Co., Ltd. will be exhibiting at 'FLOWTECH CHINA 2025' to be held at the Shanghai National Exhibition and Convention Center from June 4 (Wednesday) to June 6 (Friday), 2025. This exhibition will showcase the latest technologies and products across a wide range of areas including pumps, valves, and piping equipment. Our local subsidiary, Tianjin Daiya Valve Co., Ltd., will present various valve products, including "PFA lining valves." [Main Exhibits] ■ PFA Lining Valves: We will showcase various PFA lining valves with excellent corrosion and chemical resistance! ■ Quick-Opening Handle Type: BQL400NB: Easy operation with a 90-degree rotation, offering excellent visibility and stable sealing performance! ■ Bio-Clean Diaphragm Valves: Sanitary valves with superior "gas tightness," "cleanability," and "maintainability"! ■ V-Port Valves: Valves ideal for lines handling "abrasive fluids" and "high-viscosity fluids," featuring a V-cut ball design! We warmly invite you to visit our booth when you attend the exhibition. We look forward to seeing you!

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PFA lining diaphragm valve

Notice of participation in the Shenzhen International Semiconductor Technology and Application Exhibition (SEMI-e) from June 26 (Wednesday) to June 28 (Friday), 2024.

  • Seminar・Event

Nihon Daiya Valve Co., Ltd. will be exhibiting at the "Shenzhen International Semiconductor Technology and Application Exhibition (SEMI-e)" held at the Shenzhen International Convention and Exhibition Center from June 26 (Wednesday) to June 28 (Friday), 2024. This exhibition is a comprehensive international showcase related to manufacturing technologies, equipment, and materials in the semiconductor industry, and we will be presenting various valve products, including "PFA lining valves," from our local subsidiary, Tianjin Daiya Valve Co., Ltd. [Exhibition Details] ■ PFA Lining Valves: We will showcase various PFA lining valves with excellent corrosion and chemical resistance! ■ Quick-Opening Handle Type: BQL400NB: Easy operation with a 90-degree rotation, offering excellent visibility and stable sealing performance! ■ Bio-Clean Diaphragm Valves: Sanitary valves with superior "air-tightness," "cleanability," and "maintainability"! ■ V-Port Valves: Valves optimal for lines handling "abrasive fluids" and "high-viscosity fluids," utilizing V-cut balls! We warmly invite you to visit our booth when you attend the exhibition. We look forward to seeing you!

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Sanitary-related valve

Notice of Revision of Our Comprehensive Catalog "Sanitary-Related Valves"

  • Catalog news

We have revised the comprehensive catalog for "Sanitary Related Valves" and published "D117-08." For more details, please refer to the related catalog. *If you would like to receive a catalog, you can apply through the inquiry page. If you have any questions or concerns, please feel free to contact us.

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Companynews list (105)

Company information

Nippon

Nippon Daiya Valve Co., Ltd.

Machine elements and parts

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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.

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