World Hydrogen Summit 2025German Exhibitors Allengra GmbH

Allengra GmbH

Booth number: E56b
www.allengra.eu

About us

Allengra Flowmeters, established in 2005, specializes in the design and production of standard or OEM ultrasonic flow sensors and control valves for liquids and gases, including hydrogen, tailored to meet the specific needs of each end client application. Our company manages the entire development process, from concept to serial production, with various engineering departments and prototyping skills at our disposal. Applications Allengra's core technology, ultrasonic metering, has been refined over the years to achieve high-end device integration and cost-effective applications. Allengra provides metering and regulating solutions for various industries, covering topics like hydrogen fuel cells, electrolysers and other.

Address

Allengra GmbH
Weissdornweg 13
74747 Ravenstein
Germany

E-mail: info@allengra.eu
Phone:  +49 176 99277273
Internet: www.allengra.eu

Contact person:

Jan Wessels
Product & Portfolio Manager
E-mail: jan.wessels@allengra.eu

Cosmin Lazea
Project Manager Innovation
E-mail: cosmin.lazea@allengra.eu

Ultrasonic Hydrogen Flow Meter

Ultrasonic flow sensor for the measurement of H2 and blends in gaseous form providing both mass flow and volume flow as well as an indication of the gas composition.

Features:

  • Integrated Temperature Sensor

  • Density & Mass Flow Determination

  • Integrated Humidity Sensor

  • Integrated Pressure Sensor

  • Gas Composition Determination

Available sizes: DN15 & DN20. Others on request.

Applications: Fuel Cells & Electrolyzers, Hydrogen Combustion

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Ultrasonic Hydrogen Flow Meter

ALSONIC Ultrasonic Flowmeter for Liquids

Modular ultrasonic flow sensor for liquids made out of high-end material. Versatile functionalities.

Features:

  • Integrated Temperature Sensor

  • Gas Bubble Detection​

  • Integrated Pressure Sensor​ optional

  • KOH Concentration Detection

  • DI-Water suitable

  • operational temperature up to 90°C

  • ModBus Output (others on request)

Available from DN15 to DN50 in Plastic and stainless steel

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ALSONIC Ultrasonic Flowmeter for Liquids including DI-Water

ALSONIC Ultrasonic Flow Meter Range from DN15 to DN80

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