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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)

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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)

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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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We exhibited at the 4th Japanese Society for Antibody Research Academic Conference.

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We exhibited a booth at the "4th Annual Meeting of the Japanese Society for Antibody Research" held at Omiya Sonic City from December 1 (Monday) to December 3 (Wednesday). Thank you very much to everyone who visited our booth during the event. Thanks to your support, we were able to successfully conclude the meeting. If you have any questions regarding the products you viewed, please feel free to reach out to us. We will respond to inquiries received during the event in due course. We appreciate your continued support of Higuchi Shokai. ▼Exhibited Products - Various assembly parts (bags, bottles, sampling, etc.) - Depth filters (post-culture filtration)

Dec 10, 2025

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PFAS Regulation Countermeasures! ■■ Leak Test Equipment for Small Electronic Components|MSA-0101 series ■■ Does not use fluorinated inert fluids. PFAS-free. Offers accuracy equal to or better than liquid immersion testing.

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● This is a leak testing device for small electronic components that does not use fluorinated inert liquids (PFAS-free). ● There is no longer a need for unstable visual confirmation through liquid immersion testing. It adopts a quantitative testing method that allows for stable pressure leak testing. ● It is a tabletop leak testing device specifically for gross leaks, with accuracy equal to or greater than that of liquid immersion testing. ● The detectable range is approximately 1×10⁻² Pa·m³/s to 1×10⁻⁶ Pa·m³/s (varies depending on the target product). ● It is suitable for sealed structures ranging from a few millimeters to a maximum of 80 × 70 mm. Please feel free to contact us for more information!

Dec 10, 2025

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【Metal Crack Repair】We repair cracks in metal products without applying heat.

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The "Mechanical Stitch Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

Dec 09, 2025

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Image of wireless set usage

Solve your issues with wired bed exit sensors by connecting a wireless set linked to the nurse call system!

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Do you have any concerns or requests regarding wired bed exit sensors? × Tangling and tripping of wired cables × Cable disconnection or damage × Worry about forgetting to turn on the switch after temporarily stopping the sensor. × Want to be notified of bed exit even from a location away from the nurse call outlet. Such concerns can be resolved simply by connecting to a wireless set linked to the nurse call system! Our nurse call linked wireless set allows you to connect bed exit sensors like "Ugo-kun," "Foldable Thin Matta-kun," "Ayumi-chan," and "Just Place Pole-kun" to transmitters and receivers, reducing wiring around the bed, alleviating concerns about tripping and falling due to cables, and contributing to a tidier work environment. Furthermore, it enables the use of bed exit sensors even from locations away from the nurse call outlet, allowing for more flexible equipment placement.

Dec 09, 2025

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■■ Leak test for pouch containers such as packed rice! | MSQ-2003 series ■■ Packaging container air leak test device, pinhole inspection device, and full inspection device.

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The pinhole inspection for packaging engineering is fully automated, eliminating packaging defects based on certain quality standards. The judgment results and operational status can be managed via a monitor screen. - Quantitative management of quality standards for the pinhole inspection process - Ensuring the quality of the product's shelf life - Establishing evaluation criteria for the manufacturing process, achieving quantitative quality assurance - Slim and space-saving design that can be connected to existing production lines - Quick changeover for product variety switching can be handled in a short time by exchanging chambers - Fully domestically produced, allowing for rapid maintenance and troubleshooting - Example target works: pillow packaging, packaged rice (packaged cooked rice), etc. *Please consult us regarding the use of this product for pharmaceuticals.

Dec 09, 2025

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  • 特殊フィルター式ミストコレクター ミストリーナー 製造現場のオイルミスト環境を変えるミストコレクター DEシリーズ登場!フィルター交換時期をランプでお知らせ! 業界トップクス※除去効率 99.5% フィルター交換目安 年1回 ※当社調べ
  • 分解能 100~4,000P/R 出力方式 ラインドライバ出力/オープンコレクタ出力 税別9,500円~16,600円 ロータリーエンコーダ
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