Flow Selection Guide

Numerous principles of operation and design variations together with the consideration of installation parameters, location and the economies of operation can make it a daunting task when choosing the right flow meter for a particular application.

If you don’t know the difference between vortex flow, Magflow or mass flow technologies then you’re probably not going to make the right choice when it comes to selecting a flow meter.

iCenta is a UK flow meter specialist supplying some of the leading names in liquid, gas & vapour flow measurement with clients both large and small. To help you take the guesswork out of choosing a flow meter, please refer to the table below or just get in touch with our technical sales team.

Liquids Gear Flow Turbine Flow Magnetic Flow * Coriolis Mass Thermal Mass Vortex Flow Paddle Wheel Flow Ultrasonic Flow Variable Area / Rotameter
Clean yes yes yes yes no yes yes yes yes
Dirty no no yes yes no yes special design yes yes
Conductive yes yes yes yes no yes yes yes yes
Viscous yes, >10 centistokes (cst) yes (special calibration) yes yes no no yes yes yes (special calibration)
Slurries no limited yes yes no yes no yes (Doppler) no
Corrosive yes yes yes yes no yes yes yes yes
Reverse flow yes yes yes yes no no yes yes no
Pulsating flow yes yes yes yes no yes yes yes yes
Semi filled pipes no no no no no no no yes no
Open channel no no no no no no no yes no

 

Gases Gear Flow Turbine Flow Magnetic Flow * Coriolis Mass Thermal Mass Vortex Flow Paddle Wheel Flow Ultrasonic Flow Variable Area / Rotameter
Steam no yes no yes no yes no yes yes
Clean yes yes no yes yes yes no yes yes
Wet yes yes no yes no yes no yes yes
Contaminated no no no yes no yes no yes no
Corrosive no yes no yes no yes no yes yes

 

Technical Data Gear Flow Turbine Flow Magnetic Flow * Coriolis Mass Thermal Mass Vortex Flow Paddle Wheel Flow Ultrasonic Flow Variable Area / Rotameter
Accuracy ± 0.1-0.5% of reading 0.25-1% of reading 0.5-1% of reading 0.05-0.15% of reading 1.5% full scale 1% of reading 1% (linearity) typically 1-5% of reading 2-4% full scale
Repeatability ± 0.1% of reading 0.1% of reading 0.1% of reading 0.05-0.10% of reading 0.5% full scale 0.2% of reading 0.25% full scale
Max pressure Bar 270 and up 350 and up 350 and up 85 and up 40 and up 50 and up 100 and up unlimited 15 and up
Max temp °C 125 and up 300 and up 150 and up 200 and up 100 and up 400 100 and up 100 and up 300 and up
Pressure drop medium medium virtually none low low low virtually none none medium
Turndown ratio 25:1 10:1 100:1 50:1 < 10:1 10:1
Average cost Medium Medium Medium High Medium Medium Low Medium Low

 

* liquid must be electrically conductive

Need advice?

iCenta is a UK flow meter specialist with experience in Flow technologies for diverse applications, fluid types and process conditions. Call iCenta now for advice, sales & technical information on 0844 543 0844 or email [email protected]

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