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  1. Home
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  3. ケーエヌエフ・ジャパン KNF JAPAN
  4. Method for recovering noble gases using a diaphragm pump.
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  • Mar 28, 2024
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Mar 28, 2024

Method for recovering noble gases using a diaphragm pump.

ケーエヌエフ・ジャパン ケーエヌエフ・ジャパン KNF JAPAN
Noble gases such as helium, neon, and argon are essential in a wide range of industries and scientific research. From aerospace applications to the semiconductor industry, their unique properties bring significant benefits. The recovery of noble gases not only helps protect natural resources but also reduces the environmental impact of their production. By recovering and reusing these gases, the industry can minimize waste and reduce dependence on new gas sources, contributing not only to economic benefits but also to overall sustainability. Two-stage diaphragm pumps like the KNF N630.15 series are particularly advantageous for the recovery of noble gases. They combine efficient and reliable performance under harsh conditions with flexibility to accommodate a wide range of capacities, pressures, and gas compositions. Additionally, their compact design and inherent gas-tightness minimize gas leakage while providing high versatility and customizability for applications ranging from small to large scale. To ensure this, these pumps undergo additional helium leak testing before shipment.
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ダイアフラムポンプによる希ガスの回収方法.pdf[718750]

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How KNF Diaphragm Pumps Enhance Noble Gas Recovery
Original blog English version

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KNF H2 CH4 N2 O2 Energy-related process pump

Process pumps for research and development related to decarbonization and new energy, for the transfer, recovery, and circulation of CO2, hydrogen, oxygen, helium, and others.

In a decarbonized society and the development of new energy, there are many technical challenges that conventional gas pumps cannot adequately address. We believe that the KNF process pump, with its features listed below, can assist in solving our customers' technical challenges. Main features of the KNF process pump: - Contamination-free - A wide range of gas contact materials - Pressure-specific design with a maximum allowable discharge pressure of 1.2 MPa - Vacuum-specific design - Leak-tight design - Long lifespan design - Explosion-proof specifications (optional IECEx / ATEX) - Heat-resistant specifications with gas temperatures up to 240°C (optional) - Weather-resistant coating (optional)

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KNF Methanation-related process pump

Process pumps for research and development related to decarbonization and new energy, including the transfer, recovery, and circulation of CO2, hydrogen, oxygen, helium, and others.

In a decarbonized society and the development of new energy, there are many technical challenges that conventional gas pumps cannot adequately address. We believe that the KNF process pump, with its features listed below, can assist in solving your technical challenges. Main features of the KNF process pump: - Contamination-free - A wide range of gas contact materials - Pressure-specific design with a maximum allowable discharge pressure of 1.2 MPa - Vacuum-specific design - Leak-tight design - Long lifespan design - Explosion-proof specifications (optional IECEx / ATEX) - Heat-resistant specifications with gas temperatures up to 240°C (optional) - Weather-resistant coating (optional)

  • Special Pump

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KNF Process Pump

Process pumps for research and development related to decarbonization and new energy, for the transfer, recovery, and circulation of CO2, hydrogen, oxygen, helium, and other substances.

In a decarbonized society and the development of new energy, there are many technical challenges that conventional gas pumps cannot address. We believe that the KNF process pump, with its features listed below, can assist in solving your technical challenges. Main features of the KNF process pump: - Contamination-free - A wide range of gas contact materials - Pressure-specific design with a maximum allowable discharge pressure of 1.2 MPa - Vacuum-specific design - Leak-tight design - Long lifespan design - Explosion-proof specifications (optional IECEx / ATEX) - Heat-resistant specifications with gas temperatures up to 240°C (optional) - Weather-resistant coating (optional)

  • Special Pump

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KNF N2400 Series Process Vacuum Pumps & Compressors

Robustly designed diaphragm vacuum pumps and compressors for process engineering.

- Maximum allowable discharge pressure: 12 bar (1.2 MPa) - Leak-tight design - Abundant gas contact materials: EPDM / PTFE - Gas transfer for hydrogen, carbon dioxide, helium, etc. Basic flow rate: 130 l/min ± 10% (EPDM diaphragm) 120 l/min ± 10% (PTFE diaphragm) Achievable vacuum level: 100 mbar abs Maximum allowable discharge pressure: 12 bar (1.2 MPa)

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Introduction of KNF gas pumps for process industries.

This is an image video of the KNF process pump.

Main Content - Contamination-free vacuum pumps and compressors - Transfer of rare gases, hazardous gases, and toxic gases - Double diaphragm (for transferring rare gases) - High-temperature gases (heat-resistant gas pumps) - Aggressive, flammable gases (corrosion-resistant / explosion-proof specifications) - Stationary gas pumps - Portable gas pumps

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KNF Focused on Gas Transfer Pumps for Energy and Decarbonization R&D

This is an image video of the KNF process pump.

Mainly content - Contamination-free vacuum pumps and compressors - Transfer of rare gases, hazardous gases, and toxic gases - Double diaphragm (for transfer of rare gases) - High-temperature gases (heat-resistant gas pumps) - Aggressive, flammable gases (corrosion-resistant / explosion-proof specifications)

  • Other pumps

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Fukuda's leak test, leak inspection, leak detection, leak test, integrity test.

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Fukuda Co., Ltd. has been pursuing leak detection for 60 years and is committed to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing properties. We will propose the appropriate testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

Jan 23, 2026

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[Opening on January 6, 2026] New service launched to search for exhibits nationwide.

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We have launched a "Display Item Search Page" that allows you to search for unit houses currently on display at exhibition halls nationwide, which was made available on January 6, 2026. There are over 800 items listed on the website. You can filter by area, price range, size, purpose, product type, color, and more. You can also check exterior and interior photos, prices, facilities, and drawings/specifications online. If you're interested in a display item, you can directly inquire, make a reservation to visit, or consult via LINE. This is a convenient service that allows you to efficiently progress from comparison to detailed consideration. Please take a look!

Jan 23, 2026

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Publication of a paper in Oxford Open Materials Science

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A co-authored paper by Shin Otsuki from the Data Science Department and another author has been published in Oxford Open Materials Science. 【Paper Summary】 Title: The Exploration of Enhanced Methods in Data Science and Applications in Materials Science Authors: Raymond Wu, Shin Otsuki

Jan 23, 2026

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[New Product] Announcement of the High Brightness LED Lighting Box LLBLM-A Series

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"With high-precision dimming settings of 256/1000 gradations, you can achieve your desired results." The new 1-channel dedicated model LLBLM-A maximizes the performance of high-brightness LEDs. It offers high light stability through constant current control and flexibly accommodates a wide range of inspection and lighting applications with three types of interfaces: parallel, RS232C, and LAN. In addition to intuitive operation via the front panel, it supports high-precision dimming with 256/1000 gradations (256 gradations in parallel mode). The available emission colors are G (green) and B (blue). This new model balances stable light output with ease of use. For more details, please feel free to contact us.

Jan 23, 2026

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All participants chant for safety.

The Winter Safety Conference for the 7th year of Reiwa was held.

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Last month, we held a winter safety conference organized by our company. We have compiled the details and atmosphere of the day, as well as information on winter labor accidents, into a PDF. We would appreciate it if you could take a moment to read it.

Jan 23, 2026

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  • 首都圏最大級の工業技術・製品の総合見本市 テクニカルショウヨコハマ2026 第47回 工業技術見本市 時代をひらく新たな技術 2026年2/4(水)・5(木)・6(金) 10:00-17:00 来場者募集中
  • 展示会に出展したいけど準備が大変 展示会の情報をまとめて知りたい そんな展示会のお悩み 展サポ(R)で解決! ブース装飾で実績豊富 展示会情報を多数掲載 出展前~後まで支援
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