Gas pump for green hydrogen electrolysis process

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)

• Special 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

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

• Other pumps

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)

• Other pumps

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)

• Other pumps

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.

• Other pumps

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

• Other pumps

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

• Other pumps

We have published a technical column titled "How to Choose ToF and 3D Sensors" as a downloadable document (A4, 4 pages, with illustrations). You can view it from the related catalog below. 【For those who】 - Are considering 3D sensors for the first time - Want to clarify the differences between ToF, stereo cameras, and LiDAR - Want to determine if 3D can be used for appearance inspection 【Content of the document】 - Comparison of the mechanisms of the three methods with diagrams / Quick reference table for differences between methods - How to choose based on applications (want to count people / want to measure distance / want to inspect shapes / want to use outdoors) - Suitable and unsuitable targets for 3D in appearance inspection - Three common mistakes / Five items to check during selection We offer rental of demo units of the 3D ToF cameras from meere company. Please let us know the target objects, installation distance, and usage environment.

In public works, materials that improve the site are required, including safety measures, workability, environmental considerations, labor-saving, and heatstroke prevention. Hyper CLT sheets, utilizing wood as civil engineering CLT materials, have been adopted in many civil engineering sites, including public works. They can be used for various applications such as temporary roads, access roads, heavy machinery work yards, material storage areas, mud prevention, and worker pathways. The 5×10 sheet weighs about 230 kg, and the 5×20 sheet weighs about 460 kg, making them lightweight and easy to install and remove even with small machinery, contributing to labor-saving in construction. Additionally, they have unique characteristics of wood, such as glare and noise reduction, and CO2 fixation, making them suitable for safety measures, environmental considerations, and creative proposals. Hyper CLT sheets are registered as a technology with the Ministry of Land, Infrastructure, Transport and Tourism under NETIS "TH-250021-A." As a new civil engineering material utilizing wood, which has a proven track record in public works, we encourage you to consider it.

Dear Valued Customers, Notice of Relocation of the Kansai Sales Office We hope this message finds you well during the height of summer. We sincerely appreciate your continued support. We would like to inform you that our Kansai Sales Office will be relocating to the address below in order to enhance our services. Please note that our Kansai Factory will continue operations at its current location as usual. With this change, all of our employees will strive to meet your expectations even more, and we kindly ask for your continued patronage. Start Date of Operations: August 24, 2026 (Monday) Address: 4th Floor, Marushin Building, 11-1 Awazu-cho, Otsu City, Shiga Prefecture, 520-0832 Phone: 077-548-6081 Fax: 077-548-6082 *The phone and fax numbers will remain unchanged. Approximately a 1-minute walk from the South Exit of Ishiyama Station on the JR Biwako Line and Keihan Ishiyama Sakamoto Line.

Metal cracks are one of the concerns in equipment maintenance operations. Conventional welding methods for repairs can cause changes in the base material around the crack due to heat, leading to residual stress and deformation, which always carries the risk of "crack recurrence" and "secondary damage." Hinode Water Supply Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material at all. Repairs can be made even 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 or download the catalog.

In civil engineering sites such as mountainous areas, construction sites, and river works, it may be necessary to use mats not only on flat surfaces but also on slopes and inclined access roads. Hyper CLT mats are civil engineering materials utilizing wood CLT. In addition to temporary roads, access roads, heavy machinery work yards, and measures against muddy conditions, installation on sloped areas can also be considered after confirming site conditions. They possess surface characteristics unique to wood, creating a different driving environment compared to metal steel plates. On sloped areas, it is important to check the gradient, ground conditions, vehicle weight, and the effects of rain and mud, and to implement anti-shift and securing measures as necessary. The 5×10 mats weigh approximately 230 kg, and the 5×20 mats weigh about 460 kg, making them lightweight and easy to install and remove even with small machinery, as well as easy to handle in narrow spaces. They can also be utilized for safety measures and creative solutions in sloped civil engineering sites, registered as a Ministry of Land, Infrastructure, Transport and Tourism NETIS technology "TH-250021-A."