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Gas Measuring Technology for flow rate, mass flow rate and flow velocity

Hoentzsch flow sensors and flow rate measuring instruments demonstrate their strengths and outstanding excellence even for applications requiring extreme specifications and measurement requirements. Some examples are: explosive atmospheres, aggressive mediums, gases with temperatures up to 550 °C, mediums with particle or condensate content, high flow velocities up to 200 m/s, pipe flows with changing gas compositions or flow direction, and many more. The main focus of the flow rate measuring instruments here in use is measurement of gas flow rate. Höntzsch also offers a wide spectrum of flow rate measuring instruments and flow sensors for measuring the flow rate of liquids.

Our application-specific, high precision instruments for measuring the flow velocity and flow rate of gases can be used in many industrial sectors such as chemical, pharmaceutical, automotive, and semiconductor industries as well as in power stations, waste water and biogas plants, waste disposal, landfill sites, to name just a few. Here some examples:

Thermal Post Combustion after Chemical Installations
Hoentzsch Flow Thermal Post Combustion
Airflow in pharmaceutical filling lines and sterilising tunnels
Measuring airflow in pharmaceutical filling lines and sterilising tunnels
Visualising rotational flow in gas flows: elbow, rectifier
Visualising rotational flow in gas flows
Highly aggressive,caustic or halogenated gases - Polymer Vortex
Hoentzsch Flow Polymer Vortex Sensor for highly aggressive,caustic or halogenated gases
Gas flow when decanting gasoline and filling bitumen
Measuring gas flow when decanting gasoline and filling bitumen
Flow in steel quenching basins - oil hardening bath
Flow Measurement in steel, metal quenching basins - oil hardening bath
Sewage/Biogas Qty Measurement in Waste Water Treatment
Hoentzsch Flow Vortex Sensor for Sewage/Biogas Qty Measurement in Waste Water Treatment
Laminar flow in paint booths, clean rooms, semiconductor prod.
laminar flow in paint booths, clean rooms, semiconductor production
Exhaust air regulation in drying chambers in brick factories
Exhaust air regulation in drying brick factory hoentzsch flow
Biogas Generation - low flow, wet, corrosive gases w. particles
Hoentzsch Vortex Sensor for Biogas Generation
Measuring sludge aeration air in sewage plants
Measuring sludge aeration air in sewage plants
Monitoring engine room ventilation on LNG liquified natural gas ships
Monitoring engine room ventilation on LNG ships
Measurement of Compressed Air and Consumption
Hoentzsch Thermal Flow Sensor for Measurement of Compressed Air and Consumption
Landfill gas in single wells or the gas well’s collecting pipe
 landfill gas in single wells or at the gas well’s collecting pipe
Gas Ejection Blowers in CNG Natural Gas Pipelines
Hoentzsch Flow Vane Wheel Measurement for Gas Ejection Blowers in Natural Gas Pipelines
air exchange in forced-ventilated rooms: battery, mining, tunnels
air exchange in forced-ventilated rooms: battery, mining, tunnels, explosion proof,

Gas Flow Products

Hoentzsch Vane Wheel FA
Hoentzsch Vane Wheel FA

Vane Wheel FA Flowsensor

Flow rate and flow velocity in pipes and ducts, measuring flow profiles, aerodynamic research, measuring laminar flow, also at high gas temperatures, landfill gas, exhaust gas, flow rate and flow velocity in flowing waters.

Hoentzsch Vortex Flowsensor VA
Hoentzsch Vortex VA

Vortex VA Flowsensor

Flow rate and flow velocity measurement in wet and/or particulate-laden gases, biogas or exhaust gas, also according to Clean Air Guidelines, (TA Luft). Flow rate measurement of sludge aeration air, sewage gas, landfill gas, water vapour and engine intake air on test stations. Flow velocity in climatic wind tunnels, diluted car exhaust gas, traffic tunnels and in nuclear reactor technology.

Hoentzsch Thermal Flowsensor TA
Hoentzsch Thermal TA

Thermal TA Flowsensor

Fixed and portable consumption measurement in compressed air, nitrogen, natural gas, methane, helium, argon, carbon dioxide, hydrogen, SF6; measuring laminar flow, burner supply air, leakage flows; monitoring safety-related installations, also in aeronautical applications.

Hoentzsch Ultrasonic UA

Ultrasonic UA Flowsensor Exactsonic II

This principle of measurement is also referred to as the transit time difference method. For measuring the flow rate of liquids using this technique, ultrasonic pulses are sent and received simultaneously through the medium in the direction of flow and against it. The sensors work alternately as transmitter and receiver. The transit time of the acoustic signals filtered through the medium in the direction of flow is shorter than that against it. The difference in transit time Δt is measured and can be used to calculate the average flow velocity of liquids filtering through the acoustic path. After measuring the flow velocity and with the pipe cross-sectional area, volumetric flow can be calculated.

Hoentzsch Handheld Flowtherm Ex

Handheld flowtherm Ex

In combination with flow sensors FA, VA, TA, Pt100 and others for applications in hazardous areas

Measuring applications with the flowtherm Ex are manifold: gas mass flow and flow rate in air, exhaust air, process gases, particle and condensate laden emissions, vehicle exhaust emissions, in aggressive gases with high working temperatures and, most importantly, in the hazardous area Zone 1, et al.
ATEX-approved for potentially explosive atmospheres: II 2G Ex ib IIC T4