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Hydrogen Flow Meter
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Coriolis Flow Meters

Coriolis Mass Flow Meter – RHM 06

Rheonik Messtechnik GmbH

  • Torsion oscillator Omega tube design for stable, drift-free measurement
  • Wetted parts available in SS 316L, SS 316Ti, Alloy C22, and Super Duplex (1.4410)
  • SS 304 or SS 316L enclosure with IP 66/NEMA 4X protection class
  • Customizable AnyPipeFit process connections for direct plant integration
  • Approved for hazardous areas (ATEX/IECEx Zone 0 and 1)
  • Compact footprint for installation in space-restricted environments

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Description Vendor

The Rheonik RHM 06 is a high-precision Coriolis mass flow meter designed for accurate measurement of mass flow, density, and temperature in liquid and gas applications. The sensor uses Rheonik’s Omega tube torsion oscillator technology to provide stable measurement performance in demanding industrial environments. The RHM 06 is designed for high-pressure and extreme-temperature applications, supporting pressures up to 1,722 bar and medium temperatures from -196°C to +350°C. The meter is suitable for demanding hydrogen applications, including hydrogen refuelling stations and gas dispensing systems, where accurate flow measurement is required.

Use Cases

  • High-pressure chemical injection and additive dosing
  • Hydrogen refueling stations and gas dispensing
  • Precision mixing, batching, and high-speed filling
  • Fuel consumption and refrigerant filling systems

Capabilities

  • Mass flow measurement ranges from 0.1 kg/min to 36 kg/min
  • High-pressure ratings up to 1,722 bar (24,975 psi)
  • Temperature range from -196°C to +350°C
  • Mass flow uncertainty down to 0.05%
  • Repeatability down to 0.05%
  • Accurately measures low flow rates down to 100 g/min
Rheonik Messtechnik GmbH

Rheonik Messtechnik GmbH is recognized as the world leader in high-pressure Coriolis mass flow meters for hydrogen dispensing, having worked with all major hydrogen suppliers since the outset of the hydrogen fuel cell industry to produce flow meters capable of handling the extreme pressures associated with hydrogen distribution and dispensing. The company's patented Omega tube design enables its Coriolis flow meters to operate at pressures up to 1,722 bar with precision of 0.05%-0.1%, having developed the first Coriolis flow meters rated to 1,000 bar specifically for hydrogen refueling, approved to OIML R139 and MI002/OIML R137 standards for legal metrology compliance at hydrogen stations. The vast majority of hydrogen dispensers worldwide are fitted with Rheonik flow meters, which reliably measure hydrogen refueling at pressures up to 700 bar for cars and 350 bar for trucks/buses at temperatures of -40 degrees C, with a large measurement turndown handling the flow regime from high flow at fill start to low flow at fill end, and the ability to measure hydrogen in both liquid and gas states. Rheonik continues supplying hydrogen flow measurement technology essential to accurate, certified refueling infrastructure worldwide.

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