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  6. Air-Driven Diaphragm Pump [One-Nut Pump] Comprehensive Catalog

Air-Driven Diaphragm Pump [One-Nut Pump] Comprehensive Catalog

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last updated:Jul 30, 2025

中央理化 本社
中央理化 本社
  • Official site

Disassembly and assembly can be done with just one nut! A diaphragm pump with a high cleaning capability and simple design! [Free demo unit available for loan]

【High Cleanability Simple Design Diaphragm Pump】 For the transfer of sanitary products, paints, chemicals, waste liquids, etc.! In explosive environments! Facilitates daily pump cleaning and maintenance! With a compact style, long-lasting diaphragm, easy-to-clean simple structure, fewer parts for quick maintenance, this diaphragm pump can handle a wide range of liquids due to its rich variety of materials. It features a non-lubricated air system capable of a maximum flow rate of 55 to 908 L/min. The diaphragm is designed to withstand high temperatures (up to 135°C), allowing it to handle a wide range of liquids. The short stroke design greatly enhances pump efficiency, and the use of a one-nut pump significantly reduces process downtime while saving substantial maintenance costs without altering pump performance. ■ Hygienic Pump ■ [New Model] Residual Liquid Drain Model Now Available ■ CIP/SIP Models Available ■ Suitable for Pharmaceutical, Cosmetic, and Detergent Manufacturers *For more details, please contact us or download the catalog.

    Other food machinery
Confectionary-16473641.jpg.pagespeed.ce.lDHo1qSrpV.gif

Air-Driven Diaphragm Pump [One-Nut Pump] Comprehensive Catalog

Confectionary-16473641.jpg.pagespeed.ce.lDHo1qSrpV.gif
Confectionary-16473641.jpg.pagespeed.ce.lDHo1qSrpV.gif
  • Related Link - https://chuorika.co.jp/onp_top.html

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basic information

【Features】 ○ Fast maintenance ○ Long-lasting diaphragm ○ Few parts ○ Simple air system ○ Self-sufficient, dry up to 3.6m ○ High viscosity transport ○ Dry running OK ○ Low shear ○ Oil-free ○ Stainless steel is standard SUS316L ○ Integrated diaphragm of Teflon + rubber as standard ○ High cleanliness ○ Shaft does not slide, no O-ring used ○ Restart function available when stopped, no need for relief valves, etc. ● Example collection available ● For more details, please contact us or download the catalog.

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Applications/Examples of results

This is a pump for transferring liquid products such as food, cosmetics, paints, and chemical agents. It is an air-driven diaphragm pump that can be used in explosive environments! Above all, assembly, disassembly, and cleaning are extremely easy! It significantly reduces the time for daily cleaning and maintenance! The sanitary model has almost zero residual bacteria inside the pump! We are currently publishing a collection of case studies, so please take a look!

catalog(8)

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500 Style Pump - Air-Driven Diaphragm Pump

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One Nut Pump Mini Chem Pump

One Nut Pump Mini Chem Pump

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"Air-driven pulsation dampers" suppress piping pulsation noise by 95%!

"Air-driven pulsation dampers" suppress piping pulsation noise by 95%!

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Air-driven diaphragm pump "One Nut Pump" comprehensive catalog

Air-driven diaphragm pump "One Nut Pump" comprehensive catalog

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Good Food Pump (One Nut Pump)

Good Food Pump (One Nut Pump)

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One Nut Pump Drum Unloading System

One Nut Pump Drum Unloading System

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One-Nut Pump Case Study Collection

One-Nut Pump Case Study Collection

TECHNICAL
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News about this product(8)

[Exhibition Participation] Interphex Japan (June 26-28, 2024) Tokyo Big Sight

  • Seminar・Event

We will be exhibiting mixers and pumps for cosmetics, pharmaceuticals, and food products! They have received great acclaim for use in sanitary applications, clean room environments, and explosion-proof settings. Please take this opportunity to check out our actual mixers and pumps! We will also conduct mixing tests and transfer tests with the actual equipment!

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[Exhibition Participation] FOOMA JAPAN 2024 (June 4, 2024 - June 7, 2024) Tokyo Big Sight

  • Seminar・Event

This year, we will be showcasing the one-nut pump and pulsation dampers! They have received great acclaim not only in food and beverage applications but also in sanitary uses such as cosmetics and pharmaceuticals. Please check out the one-nut pump, which is "easy to disassemble and assemble" and "clean," using our actual equipment!

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[Exhibition Participation] Interphex Japan 2023

  • Seminar・Event

Central Rika Booth Number: 20-17 Japan's Largest! Specialized Technology Exhibition for Pharmaceuticals and Cosmetics This is Japan's largest specialized technology exhibition where all products, technologies, and services related to the research and manufacturing of pharmaceuticals and cosmetics are showcased. Pharmaceutical and cosmetic manufacturers from both domestic and international markets will attend, engaging in active business discussions with exhibiting companies. We will be exhibiting at Interphex Japan 2023. Scheduled Exhibits: - Air-driven stirrers - Electric stirrers - Air-driven diaphragm pumps, etc. We plan to showcase stirrers and one-nut pumps that have received great acclaim from cosmetic and pharmaceutical manufacturers. We will introduce products with sanitary specifications.

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[Exhibition Participation] FOOMA JAPAN 2023

  • Seminar・Event

We will be exhibiting at FOOMA JAPAN 2023, one of the world's largest comprehensive food manufacturing exhibitions. Scheduled products for exhibition: - Air-driven mixers - Electric-driven mixers - Air-driven diaphragm pumps, etc. We plan to showcase many sanitary specification products for food, cosmetics, and pharmaceutical applications.

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Companynews list (19)

Company information

中央理化

中央理化 本社

Industrial Machinery

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We are a manufacturer of air-driven stirrers and electric stirrers! We also handle micro-dosing pumps and air-driven diaphragm pumps. Today, both our stirrers and pumps are highly praised by users in the sanitary industry. Please leave the use of stirrers and pumps in clean and explosion-proof environments to us! We participate in exhibitions such as FOOMA and Interphex every year. We also offer free demonstration units and product introductions during visits!

Product/Service List (65)

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