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  6. Glass-lined diaphragm valve "440 (25/05) type"

Glass-lined diaphragm valve "440 (25/05) type"

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last updated:Apr 23, 2025

Nippon Daiya Valve Co., Ltd.
Nippon Daiya Valve Co., Ltd.
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Excellent corrosion and chemical resistance! In response to many requests, we have renewed our product!

This is a corrosion-resistant valve with a total lining of glass that excels in corrosion resistance, making it suitable for use with highly permeable chemical solutions. 【Features】 ■ Excellent corrosion and permeation resistance: It can be used with strong acids such as hydrochloric acid and concentrated nitric acid, as well as highly permeable chlorine gas. It has corrosion resistance against almost all chemicals, except for some such as alkalis. ■ Wear resistance: Compared to PFA linings, which show similar corrosion resistance, it has superior wear resistance, making it suitable for use with slurry-type chemical solutions. *For more details, please refer to the PDF document or feel free to contact us.

    valveValves and fittingsOther water treatment
ガラスライニングPRo1.png

Glass-lined diaphragm valve "440 (25/05) type"

ガラスライニングPRo1.png
ガラスライニングPRo1.png ガラスライニング本体.png
  • Glass-lined diaphragm valve
  • Special site - Product/service details - https://pr.mono.ipros.com/ndv/product/

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basic information

【Specifications】 ■Model: 440(25) type / 440(05) type ■Applicable Nominal Diameter: DN20–50 / DN65–200 ■Body Material: Carbon Steel + Glass / Cast Steel + Glass ■Diaphragm Material: NEW.PTFE (PTFE) / EPDM (liquid contact side / cushion rubber) ■Connection Standard: JIS 10KRF (JIS 10KFF) *Partly based on our own standards *For more details, please feel free to contact us.

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Applications/Examples of results

【Examples of Fluid Usage】 ■ Hydrochloric acid, chlorine gas, sulfur dichloride, phosphorus trichloride, fuming hydrochloric acid, titanium tetrachloride, concentrated nitric acid, concentrated sulfuric acid, etc. *For more details, please feel free to contact us.

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Model number overview
440(25) type DN20~50
440(05) type DN65~200

catalog(2)

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NDV Glass Lining Products Diaphragm Valve Leaflet

NDV Glass Lining Products Diaphragm Valve Leaflet

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[Latest Version] NDV "Diaphragm Valve" Comprehensive Catalog

[Latest Version] NDV "Diaphragm Valve" Comprehensive Catalog

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Exhibition Information

Free invitation with pre-registration! Announcement of participation in the INCHEM TOKYO 2025 exhibition.

  • Seminar・Event

Our company will be exhibiting at "INCHEM TOKYO 2025," which will be held at Tokyo Big Sight from September 17 (Wednesday) to September 19 (Friday). This exhibition is a specialized trade show for the chemical and process industries, and we will showcase a variety of valve products suitable for a wide range of industrial fields, including chemicals, environmental and water treatment, and pharmaceuticals, focusing on diaphragm valves, ball valves, and butterfly valves. 【Highlights of Our Exhibition】 ◆ New product "EX-Bio Clean Diaphragm Valve" launched in July! A diaphragm valve utilizing a new sealing structure! Leakage prevention performance has been further enhanced! ◆ Renewed product in response to many requests! "Glass Lined Diaphragm Valve" ◆ Additionally, we will display various valve products suitable for a wide range of industrial fields such as chemicals, environment, water treatment, and pharmaceuticals! ◆ Our company representatives will provide explanations and proposals using actual samples! We sincerely look forward to your visit! For more details, please refer to the related document "Invitation to INCHEM TOKYO 2025 (General Invitation)" below or feel free to contact us.

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The scenery of the booth.

Thank you for visiting the "INCHEM TOKYO 2025 Exhibition" from September 17 (Wednesday) to September 19 (Friday) [Nihon Diavalve].

  • Other・notification

We exhibited at the "INCHEM TOKYO 2025 Exhibition" held at Tokyo Big Sight from September 17 (Wednesday) to September 19 (Friday). Thank you very much for visiting our booth despite your busy schedule. 【Details of Exhibits】 ■ New Product: EX-Bio Clean Diaphragm Valve ■ Renewal: Glass Lined 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 ■ 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.

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The scenery of the booth.

Thank you for visiting the 27th Interphex Japan Exhibition from July 9 (Wednesday) to July 11 (Friday) [Nihon Diavalve].

  • Other・notification

We exhibited at the "27th INTERPHEX JAPAN Exhibition," which was held at Tokyo Big Sight from July 9 (Wednesday) to July 11 (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 with Sanitary Specifications ■ For Powder and Granule 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 you have any requests or questions that we could not address at the venue, please feel free to contact us.

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

[Free Invitation with Pre-registration!] Announcement of Participation in the 27th Interphex Japan Exhibition

  • Seminar・Event

Our company will be exhibiting at the 27th INTERPHEX JAPAN, which will be held at Tokyo Big Sight from July 9 (Wednesday) to July 11 (Friday). This exhibition is one of the world's leading events showcasing specialized technologies in the pharmaceutical and cosmetics industries. We will present various valve products optimal for manufacturing processes in pharmaceuticals and biotechnology, including our "Bio-Clean Diaphragm Valve" series. 【Highlights of Our Exhibition】 ◆ Official Sales Launch! New Product "EX-Bio Clean Diaphragm Valve" A next-generation diaphragm valve utilizing a new sealing structure! Officially launching this summer! ◆ Renewed Products in Response to Many Requests! The "Glass-Lined Diaphragm Valve" has been renewed! ◆ Additionally, we will showcase various sanitary valve products ideal for manufacturing equipment in pharmaceuticals, cosmetics, food, and semiconductors! ◆ Our company representatives will provide explanations and proposals using actual samples! We sincerely look forward to your visit! For more details, please refer to the related document "Invitation to the 27th INTERPHEX JAPAN (General Invitation)" below or feel free to contact us.

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Companynews list (102)

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.

Product/Service List (51)

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