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  1. Home
  2. Machine elements and parts
  3. ケーエヌエフ・ジャパン KNF JAPAN
  4. Gas pump for green hydrogen electrolysis process
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  • Feb 28, 2025
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Feb 28, 2025

Gas pump for green hydrogen electrolysis process

ケーエヌエフ・ジャパン ケーエヌエフ・ジャパン KNF JAPAN
Oxygen Sampling Pump: Required Characteristics: Leak-tight specification / Degreasing treatment Recommended KNF Pumps: N96STDC-B-M / N96KTDC-B-M (Customized specification) / N87ST.9E (Customized specification) Hydrogen Sampling Pump: Required Characteristics: Leak-tight specification / Explosion-proof specification (Japan Explosion-proof Certification for Hydrogen, compatible with IIC & IIB + H2) Recommended KNF Pumps: N87ST.9E Ex (Customized specification) / N922ST.9E Ex
N87TTE Ex
N87TTE Ex
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グリーン水素 電気分解工程でのガスポンプ.pdf[0]

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Diaphragm-Pumps_210x280_ohneHTG_transparent.jpg

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_N87_TTE_Ex_jpg.jpg

Explosion-proof gas pump, certified for explosion-proof standards.

Acquired Japan's explosion-proof certification, allowing safe use for sampling and gas transfer of flammable gases including hydrogen gas.

- Explosion-proof structure electrical machinery and equipment type certification passed - Increased safety explosion-proof structure, pressure-resistant explosion-proof structure - Motor division grade: Ex II 2G Ex h IIB+H2 T4 Gb

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About the KNF N96 Series Modular System

We can provide customization of various connection gas materials, fittings, motors, and more to help solve our customers' challenges.

- It can be used for the transfer of wet gases and condensate gases. - It can be restarted from a reduced pressure or positive pressure state without releasing to the atmosphere. - The brushless DC motor allows for flow rate adjustment via PWM control. - It can be used at ambient temperatures up to 50°C and gas temperatures up to 70°C. - Leak-tight design: 6 x 10^-3 mbar x l/s - A multi-voltage compatible AC converter specification is also available. Basic flow rate: 7 l/min and above Achievable vacuum level: < 100 mbar abs and above Maximum allowable discharge pressure: 2.5 bar (0.25 MPa)

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KNF N96 Series Vacuum Compressor

A compact gas pump with a well-balanced combination of decompression characteristics and positive pressure characteristics.

- It can be used for the transfer of wet gas and condensate gas. - It can be restarted from a reduced pressure state or a positive pressure state without releasing to the atmosphere. - The brushless DC motor allows for flow rate adjustment via PWM control. - It can be used at ambient temperatures up to 50°C and gas temperatures up to 70°C. - Leak-tight design: 6 x 10^-3 mbar x l/s - A multi-voltage compatible AC converter specification is also available. Basic flow rate: 7 l/min and above Achievable vacuum level: < 100 mbar abs and above Maximum allowable discharge pressure: 2.5 bar (0.25 MPa)

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Introduction to Maintenance Procedures for the KNF N96 Series

This is the replacement procedure for the consumable parts diaphragm and valve.

The maintenance procedures for other gas pumps are generally similar, so please refer to them.

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KNF_N87_TTE_Ex_jpg.jpg

N87Ex Series Explosion-Proof Gas Pump

IECEx / ATEX certified explosion-proof pump can be used in environments with flammable gases. *This is not an explosion-proof certified product in Japan.

- Basic flow rate 7.5 l/min - Achievable vacuum level 140 mbar abs - Maximum allowable discharge pressure 1.5 bar (0.15 MPa) - Corrosion-resistant specification PVDF / PTFE - Robust design to withstand tough operating conditions - Leak-tight specification 6 x 10-3 mbar x l/s

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KNF N922Ex Series Explosion-Proof Gas Pump

IECEx / ATEX certified explosion-proof pump can be used in environments with flammable gases. *This is not an explosion-proof certified product in Japan.

- Basic flow rate N922 8L: 7.5 l/min / N922 16L: 16 l/min - Achievable vacuum level 200-350 mbar abs - Maximum allowable discharge pressure 1.5 bar (0.15 MPa) - Corrosion-resistant specification PTFE - Robust design that withstands tough operating conditions - Leak-tight specification 6 x 10-3 mbar x l/s

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Related catalog(7)

KNF N96 Series Diaphragm Gas Pump

KNF N96 Series Diaphragm Gas Pump

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KNF N87 Series Explosion-Proof Pump Explosion-Proof Certification Approved Product

KNF N87 Series Explosion-Proof Pump Explosion-Proof Certification Approved Product

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KNF N922 Explosion-proof Vacuum Pump 60Hz Specification Explosion-proof Certification Passed

KNF N922 Explosion-proof Vacuum Pump 60Hz Specification Explosion-proof Certification Passed

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KNF N922 Explosion-proof Vacuum Pump 50Hz Specification Explosion-proof Certification Passed Product

KNF N922 Explosion-proof Vacuum Pump 50Hz Specification Explosion-proof Certification Passed Product

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KNF N922 Stainless Steel Explosion-Proof Vacuum Pump Explosion-Proof Certification Approved Product

KNF N922 Stainless Steel Explosion-Proof Vacuum Pump Explosion-Proof Certification Approved Product

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KNF N922 Stainless Steel Vacuum Pump & Compressor IP54

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KNF N922 Stainless Steel Vacuum Pump & Compressor IP20

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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.

  • NEW
  • PRODUCT

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.

Mar 18, 2026

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

  • NEW
  • PRODUCT

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)

Mar 18, 2026

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Hyper CLT flooring (NETIS registration number: TH-250021-A)

Business Vision | Transforming the steel plate market into wood.

  • NEW
  • COMPANY

What we aim to achieve is to transform the market for steel plates, which has been taken for granted until now, into one that utilizes wood. Of course, there are reasons why steel plates have been used for many years, and they are important materials that support the field. However, there are also issues that need to be reconsidered, such as the burden of transportation due to their weight, the hassle of installation and removal, the rise in surface temperature during summer, and environmental impact. That is why we want to propose a new option: wood. Wooden sheets are not just alternative materials. They offer lightness, ease of handling, a friendly working environment, and environmental consideration. There is potential to add new value against the conventional wisdom. The hyper CLT sheets we are working on (NETIS registration number: TH-250021-A) are precisely one of those challenges. We want to gradually change the fixed notion that "sheets must be made of steel" and promote wooden sheets as truly user-friendly materials that are suitable for the future. That is our business vision. Moving forward, we will continue to expand the possibilities of wood in the field and deliver new value to the construction industry.

Mar 18, 2026

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[Cast Iron Repair] We will repair cracks that have occurred in metal equipment without applying heat.

  • NEW
  • CATALOG

The "Mechanical Stitching 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 on 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.

Mar 18, 2026

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Aluminum prototype: Lost wax casting sand mold layered 3D printer prototype.

  • NEW
  • COMPANY

● The production time for casting prototypes can be shortened! Since model production is not required, the time needed to create prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly producing sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! With one molding process, different products with similar shapes or varying dimensions can be molded at the same time. This allows for the verification of multiple types in a short period.

Mar 18, 2026

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