Rapid opening and closing handle - Bio-clean diaphragm valve
Easy with 90-degree operation! Prevents over-tightening and damage! We solve concerns like "I'm worried if it's securely tightened..."
The "BQL400NB model" is a rapid-opening and closing type handle diaphragm valve from BioClean. While the standard handle version requires about 5 turns of operation (for DN50), the rapid-opening and closing handle allows for a very simple operation of just 【opening and closing by 90 degrees】. The position of the handle makes it clear to see the valve's open and close status even from a distance. Additionally, it has achieved a lighter and more compact design compared to conventional products. Please try the easy operation and stable sealing performance of the 90-degree rotating lever handle. 【We solve the following problems!】 ■ The opening and closing torque is excessive. → It can be reduced, greatly contributing to labor savings. ■ I want to check the open and close status from a distance. → The handle position clearly shows the valve's open and close status even from afar. ■ The valve is damaged due to over-tightening. → Only the minimum necessary operation is required. This prevents damage and extends lifespan. *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.)
basic information
【Specifications】 ■Main body material: SUS316L and others ■Diaphragm: NEW PTFE/EPDM, NEW PTFE/EPDM + @ ■Connection standards: Ferrule and others *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 site.)
Price information
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For more details, please refer to the PDF document or feel free to contact us.
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Notice of participation in the Shenzhen International Semiconductor Technology and Application Exhibition (SEMI-e) from June 26 (Wednesday) to June 28 (Friday), 2024.
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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Thank you for visiting the 26th Interphex Japan Exhibition from June 26 (Wednesday) to June 28 (Friday) [Nihon Diavalve].
We exhibited at the "26th Interphex Japan Exhibition," held at Tokyo Big Sight from June 26 (Wednesday) to June 28 (Friday). Thank you very much for visiting our booth despite your busy schedule. 【Details of Exhibits】 ■ New Product: EX-Bio Clean Diaphragm Valve ■ Products with excellent dead space measures ■ Corrosion-resistant valves with sanitary specifications ■ For powder and granular discharge: Sanitary butterfly valve * 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.
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Notice of Revision of Our Comprehensive Catalog "Sanitary-Related Valves"
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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Thank you for visiting 'INCHEM TOKYO 2023' from September 20 (Wednesday) to September 22 (Friday) [Japan Diavalve]
We exhibited at "INCHEM TOKYO 2023," which was held at Tokyo Big Sight from September 20 (Wednesday) to 22 (Friday). Thank you very much for visiting our booth despite your busy schedule. 【Details of Exhibits】 ■ New Bio-Clean Diaphragm Valve ■ Ball Valve Series Suitable for a Wide Range of Fields ■ Various Lined Bodies with Excellent Corrosion and Chemical Resistance ■ PFA Lined Butterfly Valve *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 were unable to address at the venue, please feel free to contact us.
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Notice of participation in "INCHEM TOKYO 2023" from September 20 (Wednesday) to September 22 (Friday).
Nihon Diaball Valve Co., Ltd. will be exhibiting at "INCHEM TOKYO 2023," which will be held at Tokyo Big Sight from September 20 (Wednesday) to 22 (Friday) this year. This exhibition is Japan's only specialized exhibition for chemical and process industry plants, and our company will showcase various valve products suitable for a wide range of industrial fields, focusing on diaphragm valves, ball valves, and butterfly valves, including applications in chemicals, environmental and water treatment, and pharmaceuticals. [Highlights of the Exhibition] - We will reference display the "New Bio-Clean Diaphragm Valve" featuring a new sealing structure. - Live demonstration of cut samples of V-port valves! - Our company representatives will provide explanations and proposals using actual samples. [Details of Exhibits] - New Bio-Clean Diaphragm Valve - Ball valve series suitable for a wide range of fields - Various lined main bodies with excellent corrosion and chemical resistance - PFA-lined butterfly valves We look forward to your visit!
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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.



























