We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Diaphragm Valve.
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Diaphragm Valve Product List and Ranking from 28 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

Diaphragm Valve Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. 日本ダイヤバルブ 本社　業務・開発部 Tokyo//Machine elements and parts
  2. エマソンバルブアンドコントロールジャパン Tokyo//Machine elements and parts
  3. Fujikin Incorporated Tokyo//Machine elements and parts
  4. 4 KITZ SCT Corporation Tokyo Headoffice Tokyo//Electronic Components and Semiconductors
  5. 5 トーステ Osaka//Ferrous/Non-ferrous metals
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Diaphragm Valve Product ranking

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. KTM manual diaphragm valve エマソンバルブアンドコントロールジャパン
  2. Japan Diavalve Co., Ltd. "Product Guide" Catalog 日本ダイヤバルブ 本社　業務・開発部
  3. Fujikin Co., Ltd. "Diaphragm Valve" Fujikin Incorporated
  4. 4 Diaphragm Valve Comprehensive Catalog *Includes Technical Data 日本ダイヤバルブ 本社　業務・開発部
  5. 5 KTM Manual ISO Diaphragm Valve エマソンバルブアンドコントロールジャパン

Diaphragm Valve Product List

91～105 item / All 112 items

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Electromagnetic Diaphragm Valve ED-V50 Series

Electromagnetic Diaphragm Valve ED-V50 Series

There is no liquid material wrapping around the drive body (drive part).

In the electromagnetic diaphragm valve ED-V50 series, the inlet and outlet for liquid materials are M6. The upper seal of the wetted part uses a diaphragm (fluororesin-based, PTFE), preventing liquid materials from flowing into the drive body. Depending on the liquid content, all wetted fittings, tubes, and needles can be piped using resin or Teflon materials. For the materials that come into contact with the fluid (wetted part materials), highly corrosion-resistant PCTFE and PTFE are used, making it suitable for a wide range of fluids. For more details, please contact us or refer to the catalog.

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High durability 'Air-operated Diaphragm Valve DK/CP'

High durability 'Air-operated Diaphragm Valve DK/CP'

Durability that clears 5 million open/close cycles! The uniquely developed internal structure significantly improves the flow coefficient! Energy savings and cost reduction achieved through downsizing the pump!

The "Air-operated Diaphragm Valve DK/CP" is a pneumatic two-way diaphragm valve particularly suitable for shutting off and regulating highly abrasive fluids and dirty fluids. The new internal structure of the body increases the flow coefficient and reduces pressure loss. It allows for high sensitivity and precise adjustments throughout the entire stroke of the shutter. The new compact and lightweight piston actuator made of PP-GR makes the DK/CP an ideal choice for applications requiring frequent valve operation and long service life. 【Features】 ■ Hydrodynamically optimized design ■ Complete isolation of metal internal components from fluids and external environments ■ High durability of over 5 million cycles ■ Body materials: PVC-U / PP-H / PVDF / PVC-C ■ Diaphragm materials: EPDM / FKM / PTFE (NBR available upon request) ■ Compatible with various JIS standard connections (also compatible with other international standards) PVDF material and fluororesin diaphragms of FKM and PTFE are used in piping systems where the fluid poses high risks, as well as in chemical piping or in semiconductor, pure chemical, and ultra-pure water lines where high purity is required. *For more details, please refer to the PDF document or feel free to contact us.

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DK type DIALOCK plastic diaphragm valve

DK type DIALOCK plastic diaphragm valve

The independently developed internal structure significantly improves the flow coefficient (kv/cv value) and reduces pressure loss!

The newly developed FIP diaphragm valve "DK series" has achieved up to a 90% performance improvement compared to previous models. In fact, the uniquely developed internal structure has significantly improved the flow coefficient (kv/cv value) and successfully reduced pressure loss. Compared to typical plastic diaphragm valves, it has less pressure loss, allowing for more than double the flow rate. This means that energy savings and cost reductions can be achieved by downsizing piping and pump sizes. Main features: - Improved flow coefficient and linearity due to newly designed body structure - Ergonomically designed handwheel and bonnet - Comes with PP-GR and PVC protective cap (excellent chemical resistance) - Patented Dialock system that can be locked in 300 positions - Optional stroke limiter to restrict flow *Please be sure to watch the video.

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Diaphragm Valve "VM"

Diaphragm Valve "VM"

Achieve accurate and effective control while minimizing the risk of water hammer!

The "VM" is a diaphragm valve particularly suitable for blocking or regulating highly abrasive fluids and dirty fluids. With control via a handwheel and a diaphragm seal, it achieves precise and effective control while minimizing the risk of water hammer. Additionally, the optimization of hydraulic efficiency made possible by the new internal structure of the body enables maximum output flow. 【Features】 ■ Connection system compatible with solvent-welded and flanged joints ■ Hydraulically optimized design ■ Handwheel that maintains the same height when rotated, equipped with internal bearings to minimize friction and operating torque ■ Standard optical indicator ■ Complete isolation of metal internal moving parts from the transported fluid *For more details, please refer to the PDF document or feel free to contact us.

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NDV "Sanitary Related Valves" Comprehensive Catalog

NDV "Sanitary Related Valves" Comprehensive Catalog

Manufacturing equipment for pharmaceuticals, food, semiconductors, etc.! A wide variety of sanitary specification valves available.

This document is a "comprehensive catalog" featuring sanitary specification valves suitable for manufacturing equipment in pharmaceuticals, food, semiconductors, and more. It includes the "Bio-Clean Diaphragm Valve Series," which maximizes the features of diaphragm valves, as well as sanitary butterfly valves for pharmaceutical containers. Customers can select valves tailored to their applications and the fluids they use. [Contents] ■ Bio-Clean Diaphragm Valves ■ Dead Space Countermeasure Products ■ Special Valves and Related Products ■ Sanitary Valves and Cleanroom Related Products ■ Technical Documentation *For more details, please refer to the PDF document 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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NDV Bio-Clean Diaphragm Valve

NDV Bio-Clean Diaphragm Valve

It is possible to manufacture valve bodies tailored to specific applications and specifications! "Bioclean diaphragm valves that are optimal for pharmaceutical bioprocesses and more."

This product is a valve suitable for manufacturing equipment in pharmaceuticals, bioprocesses, cosmetics, food, and semiconductors. The diaphragm completely isolates the fluid from the drive mechanism, providing a highly airtight structure. It has a packless design that eliminates the gland packing area, which is often associated with a high risk of leakage in general valves, thus excelling in maintaining airtightness and preventing bacterial contamination. 【Features】 ■ Excellent airtightness ■ Structure that does not contaminate the fluid ■ Superior cleanability ■ Excellent maintainability ■ Customizable valve body to match applications and specifications *For more details, please refer to the sanitary valve catalog (pages 8-16) or feel free to contact us. (English and Chinese versions are available upon request!)

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Ceramic lining diaphragm valve "480(04) type"

Ceramic lining diaphragm valve "480(04) type"

Introduction to porcelain lining products with excellent resistance to corrosion and chemicals.

The "480(04) type" is a diaphragm valve made of porcelain lining that excels in corrosion and chemical resistance. It does not experience the permeation of chemical liquids, which can be a concern under certain conditions with fluororesin lining or rubber lining. Additionally, it is suitable not only as a corrosion-resistant valve for strong acid fluids but also for highly permeable fluids such as hydrochloric acid and phosphorus trichloride. 【Features】 ■ Does not experience the permeation of chemical liquids, which can be a concern under certain conditions with fluororesin lining or rubber lining. ■ Suitable not only as a corrosion-resistant valve for strong acid fluids but also for highly permeable fluids such as hydrochloric acid and phosphorus trichloride. ■ Base material: FCD-S, Lining: Porcelain *For more details, please refer to the PDF materials or feel free to contact us. (We have English and Chinese versions of the catalog available upon request!)

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Rapid opening and closing handle - Bio-clean diaphragm valve

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.)

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Japan Diavalve Co., Ltd. Company Profile

Japan Diavalve Co., Ltd. Company Profile

Contributing to our customers' technological innovation! Providing reliable technology, products, and services that respond promptly to changes in the times.

Our company can select and provide valves made of suitable materials and structures for various types and conditions of fluids based on extensive experimental data and rich experience, through custom production tailored to our customers' needs. To deliver products that match societal needs in response to the rapid changes of the times, we are advancing technology development and research and development through our unique system. Additionally, we conduct strict quality control based on a quality assurance system certified by ISO 9001. 【Business Content】 ■ Manufacturing and sales of valves - Diaphragm valves - Ball valves - Butterfly valves - Other types of valves *For more details, please refer to the PDF materials or feel free to contact us.

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Information on our product and service support contact.

Information on our product and service support contact.

Accurate implementation of "preventive maintenance" reduces risks and prevents troubles before they occur!

At Japan Diaball Valve, we provide reliable, safe, and high-quality after-sales service. Our employees actually visit the site to conduct inspections and repairs while observing the conditions on-site. *Please feel free to contact us, as there may be cases where on-site inspections and repairs are difficult, such as with large-diameter valves. We support our users through five sales bases across the country and partner companies. For preventive maintenance and upkeep, please consult with us. We offer free materials featuring case studies available for download in PDF format. Please take a look. 【Features】 ■ Supporting the long-term maintenance and management of user facilities ■ Providing various maintenance-related services for our products based on our unique know-how accumulated over many years and the assurance of manufacturer quality ■ Accurately executing service operations entrusted to us by users, based on over half a century of rich experience and solid technical skills.

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Valve FAQ Frequently Asked Questions [General NDV Products Edition]

Valve FAQ Frequently Asked Questions [General NDV Products Edition]

General NDV Products Edition! We will answer frequently asked questions about valves.

This document summarizes frequently asked questions about NDV products in general, specifically regarding valves, and provides answers in a Q&A format. If you have any questions or requests regarding our products, please feel free to contact us. 【Contents (Q&A)】 ■ What types of valves does NDV handle? ■ Are there any restrictions on the installation position of the valve piping? ■ Why can multiple actuators be selected for a single nominal diameter? ■ What is the NAMUR standard? *For more details, please refer to the PDF document or feel free to contact us.

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Frequently Asked Questions about Valves [Diaphragm Valve Edition]

Frequently Asked Questions about Valves [Diaphragm Valve Edition]

Diaphragm Valve Edition! We will answer frequently asked questions about valves!

This document summarizes frequently asked questions about diaphragm valves and provides answers in a Q&A format. If you have any questions or requests regarding our products other than diaphragm valves, please feel free to contact us. 【Contents (Q&A)】 ■ What is the history of diaphragm valves? ■ Can you explain the structure of diaphragm valves? ■ What are the characteristics of diaphragm valves? ■ How should I select the combination of the body and diaphragm? ■ What is the durability and lifespan of the diaphragm? *For more details, please refer to the PDF document or feel free to contact us.

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NDV【Bio-Clean Diaphragm Valve】Standard Specifications

NDV【Bio-Clean Diaphragm Valve】Standard Specifications

We offer valve body specifications with stainless steel bodies and lined bodies!

This product is the ideal valve for manufacturing equipment in pharmaceuticals, bioprocesses, cosmetics, food, and semiconductors. The valve body specifications are available in "stainless steel body" and "lined body." The diaphragm is made of New PTFE on the fluid side, with a cushion rubber of EPDM (or EPDM + a) specification. 【Stainless Steel Body Production Body List (Excerpt)】 <Stainless Steel Forged Products> ■ Main Material: SUS316L ■ Material Code Number: 14 ■ Ferrule (Nominal Diameter [DN]): 8 to 100 *For more details, please refer to the catalog (P10-11) or feel free to contact us. (English and Chinese versions are available upon request!)

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NDV Bio-Clean Diaphragm Valve [Manual Operation Valve]

NDV Bio-Clean Diaphragm Valve [Manual Operation Valve]

We offer various handle specifications! We can accommodate your requests, including rapid open/close types, those with lock nuts, and those with opening degree indicators.

This product is an optimal valve for manufacturing equipment in pharmaceuticals, bioprocesses, cosmetics, food, semiconductors, and more. The handle specifications include the stainless steel handle type "B400N," the aluminum handle type "BC400" (B400NB), and optionally, the quick-open/close handle type "BQL400NB" (BQL400N). Additionally, we can accommodate requests for features such as lock nuts and opening degree indicators, so please feel free to consult us. 【Features】 ■ B400N - High cleanliness and durability of the outer surface ■ BC400 (B400NB) - Lightweight and focused on cost benefits *For more details, please refer to the catalog (P12) or the leaflet, or feel free to contact us. (English and Chinese versions are available upon request!)

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

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

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!)

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