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Flow Instruments

What are flow meters?

Flow instruments, flow controllers or flow control valves measure the amount of flow in mass (Weight) or volume of gas, liquid or solids passing by in a process line per time unit. Flow can be measured with an ultrasonic flowmeter or an electromagnetic flowmeter without any mechanical parts. Both flowmeters are used to measure large volumes of flow. To measure mass flow a Coriolis flowmeter or thermal mass flowmeter can be used for smaller flows with an optimal control.

Types of Flow meters

Ultrasonic flowmeters

Coriolis Mass flowmeters

Electromagnetic flowmeters

Thermal mass flowmeters

Ultrasonic flowmeter Coriolis massflowmeters Electromagnetic Flowmeters

Calorimetric Flow Meters

Variable area flowmeters

Flow controllers/ flow switches 

 Flow indicators

Calorimetric flowmeter Variable Area Flowmeter Flow switch Flowindicator

Flow meter applications

Flow measurement in process and instrumentation systems is done with flowmeters or with differential pressure instruments. They can be found in the following flow applications: Air flow control, liquid flow control, purge gas flow control, analytical flow measurement, high-velocity stream measurement, low flow gas applications, slurry applications, energy-fuel flow measurement, cryogenic flow measurement, combustion fuel control, Fluid streams like, slurry, sewage, wood pulp, chemicals, water treatment plants, high viscous fluids, food processing, flow measurement of pulp, blending systems for the petroleum industry, Biopharmaceutical bioreactors and many more.

If you like to know more about how to select flowmeters, visit our selection page: How to select flowmeters

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There are 210 results.

Design Rating Min Max
Pressure Barg150
Pressure PSI2175
Flow rate Air0 std ft³/hr450 std ft³/hr
Flow rate Water0 Gal/hr450 Gal/hr
Process media temp °C-40150
Process media temp °F-40302
Sizes
Imperial 1/2 inch
Metric 10 mm
Applications
Fragrance dispensing and high precision coatings in the pharmaceutical industry, CO2 injection and dosing in the food and beverage industry, Natural gas and propane odorisation, Engine test beds in the automotive industry
Design Rating Min Max
Pressure Barg100
Pressure PSI1450
Flow rate Air0 std ft³/hr1000000 std ft³/hr
Flow rate Water0 Gal/hr1000000 Gal/hr
Process media temp °C-200400
Process media temp °F-328752
Sizes
Applications
Crystallising, solidifying and cryogenic products, Tanker unloading, General purpose applications, CIP and SIP >130°C, Liquid Natural Gas, Supercritical gases
Design Rating Min Max
Pressure Barg200
Pressure PSI2900
Flow rate Air0 std ft³/hr1000000 std ft³/hr
Flow rate Water0 Gal/hr1000000 Gal/hr
Process media temp °C-70230
Process media temp °F-94446
Sizes
Applications
Crystallising, solidifying and cryogenic products, Tanker unloading, General purpose applications, CIP and SIP >130°C, Liquid Natural Gas, Supercritical gases
Design Rating Min Max
Pressure Barg-150
Pressure PSI-15 725
Flow rate Air0 std ft³/hr560000 std ft³/hr
Flow rate Water0 Gal/hr560000 Gal/hr
Process media temp °C0100
Process media temp °F32212
Sizes
Applications
Viscous or shear-sensitive products, Products requiring low flow velocities, Non-homogeneous mixtures, Products with entrained solids or gas, Custody transfer, Loading and product transfer measurement, Slurries, Highly corrosive fuels
Design Rating Min Max
Pressure Barg-150
Pressure PSI-15 725
Flow rate Air0 std ft³/hr560000 std ft³/hr
Flow rate Water0 Gal/hr560000 Gal/hr
Process media temp °C0100
Process media temp °F32212
Sizes
Applications
Viscous or shear-sensitive products, Products requiring low flow velocities, Non-homogeneous mixtures, Products with entrained solids or gas, Custody transfer, Loading and product transfer measurement, Slurries, Highly corrosive fuels