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. There are different principles of flow measurement. Flow meters are referred to by many names, such as flow gauge, flow indicator, liquid meter. Flow can be measured with a mechanical turbine flowmeter with rotating internal parts or an electromagnetic flowmeter without any mechanical parts. Both flowmeters are used to measure large volumes of flow. To measure mass flow a mass flow controller for very small flows is. Accuracy and repeatability of flow instruments are important features of the flowmeters and will be different with every type of flow instrument or flow controller.

Types of Flow meters

Coriolis Mass flowmeters
Electromagnetic flowmeters
Flow controllers/ flow switches
Flow indicators
Positive displacement flowmeters
Thermal mass flowmeters
Turbine flowmeters
Ultrasonic flowmeters
Variable area flowmeters
Vortex flowmeters

 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.

 How to select flowmeters?

Within the requirements of your specific application, use our Product Gauge value-added search filter available on Product Gauge to find for instance a variable area flowmeter, mass flow controller, coriolis flow meter or ultrasonic flowmeter that matches your parameters with just a few mouse clicks. Detailed information is available in the catalogs of the original supplier which links are show Product Gauge.

How to select flowmeters? 

Products

There are 2148 results.

  • Design RatingMinMax
    Process media temp °C 0100
    Process media temp °F 32212
    Pressure Barg -1100
    Pressure PSI -14.51450
    Flow rate air 0.000 kg/hr560000 kg/hr
    Flow rate water 0.000 kg/hr560000 kg/hr
    Product propertyValue
    Material of Construction Titanium
    Certifications CLASS I, DIV 1
    CLASS I, DIV 2
    CLASS II, DIV 1
    CLASS II, DIV 2
    CLASS III, DIV 1
    CLASS III, DIV 2
    EX ib
    EX d
    ASME Boiler and Pressure Vessel Code
    3-A Sanitairy Standard
    PED (Pressure Equipment Directive (97/23/EC))
    ATEX directive 94/9/EG
    CSA Intrinsic Safety certification
    Ex II 2G
    Ex II 2D
    Process Connection Type DIN Flange PN16
    DIN Flange PN40
    DIN Flange PN63
    DIN Flange PN100
    Size 10 mm - 100 mm
  • Design RatingMinMax
    Process media temp °C 0100
    Process media temp °F 32212
    Pressure Barg -1100
    Pressure PSI -14.51450
    Flow rate air 0.000 kg/hr560000 kg/hr
    Flow rate water 0.000 kg/hr560000 kg/hr
    Product propertyValue
    Material of Construction Titanium
    Certifications CLASS I, DIV 1
    CLASS I, DIV 2
    CLASS II, DIV 1
    CLASS II, DIV 2
    CLASS III, DIV 1
    CLASS III, DIV 2
    EX ib
    EX d
    ASME Boiler and Pressure Vessel Code
    3-A Sanitairy Standard
    PED (Pressure Equipment Directive (97/23/EC))
    ATEX directive 94/9/EG
    CSA Intrinsic Safety certification
    Ex II 2G
    Ex II 2D
    Process Connection Type Tri-Clamp
    Size 10 mm - 80 mm
  • Design RatingMinMax
    Process media temp °C 0100
    Process media temp °F 32212
    Pressure Barg -150
    Pressure PSI -14.5725
    Flow rate air 0.000 kg/hr560000 kg/hr
    Flow rate water 0.000 kg/hr560000 kg/hr
    Product propertyValue
    Material of Construction Alloy C-22 (Hastelloy®)(UNS N06022)
    Certifications CLASS I, DIV 1
    CLASS I, DIV 2
    CLASS II, DIV 1
    CLASS II, DIV 2
    CLASS III, DIV 1
    CLASS III, DIV 2
    EX ib
    EX d
    ASME Boiler and Pressure Vessel Code
    3-A Sanitairy Standard
    PED (Pressure Equipment Directive (97/23/EC))
    ATEX directive 94/9/EG
    CSA Intrinsic Safety certification
    Ex II 2G
    Ex II 2D
    Process Connection Type ANSI Flange 150LBS
    ANSI Flange 300LBS
    ANSI Flange 600LBS
    JIS Flange 10K
    JIS Flange 20K
    Tri-Clamp
    Size 1/2 inch - 4 inch
  • Design RatingMinMax
    Process media temp °C 0100
    Process media temp °F 32212
    Pressure Barg -150
    Pressure PSI -14.5725
    Flow rate air 0.000 kg/hr560000 kg/hr
    Flow rate water 0.000 kg/hr560000 kg/hr
    Product propertyValue
    Material of Construction Alloy C-22 (Hastelloy®)(UNS N06022)
    Certifications CLASS I, DIV 1
    CLASS I, DIV 2
    CLASS II, DIV 1
    CLASS II, DIV 2
    CLASS III, DIV 1
    CLASS III, DIV 2
    EX ib
    EX d
    ASME Boiler and Pressure Vessel Code
    3-A Sanitairy Standard
    PED (Pressure Equipment Directive (97/23/EC))
    ATEX directive 94/9/EG
    CSA Intrinsic Safety certification
    Ex II 2G
    Ex II 2D
    Process Connection Type DIN Flange PN16
    DIN Flange PN40
    DIN Flange PN63
    DIN Flange PN100
    Size 10 mm - 100 mm
  • Design RatingMinMax
    Process media temp °C -40150
    Process media temp °F -40302
    Pressure Barg -150
    Pressure PSI -14.5725
    Flow rate air 0.000 kg/hr560000 kg/hr
    Flow rate water 0.000 kg/hr560000 kg/hr
    Product propertyValue
    Material of Construction Tentalum
    Certifications CLASS I, DIV 1
    CLASS I, DIV 2
    CLASS II, DIV 1
    CLASS II, DIV 2
    CLASS III, DIV 1
    CLASS III, DIV 2
    EX ib
    EX d
    ASME Boiler and Pressure Vessel Code
    3-A Sanitairy Standard
    PED (Pressure Equipment Directive (97/23/EC))
    ATEX directive 94/9/EG
    CSA Intrinsic Safety certification
    Ex II 2G
    Ex II 2D
    Process Connection Type ANSI Flange 150LBS
    ANSI Flange 300LBS
    ANSI Flange 600LBS
    JIS Flange 10K
    JIS Flange 20K
    Tri-Clamp
    Size 1/2 inch - 4 inch
  • Design RatingMinMax
    Process media temp °C -40150
    Process media temp °F -40302
    Pressure Barg -150
    Pressure PSI -14.5725
    Flow rate air 0.000 kg/hr560000 kg/hr
    Flow rate water 0.000 kg/hr560000 kg/hr
    Product propertyValue
    Material of Construction Tentalum
    Certifications CLASS I, DIV 1
    CLASS I, DIV 2
    CLASS II, DIV 1
    CLASS II, DIV 2
    CLASS III, DIV 1
    CLASS III, DIV 2
    EX ib
    EX d
    ASME Boiler and Pressure Vessel Code
    3-A Sanitairy Standard
    PED (Pressure Equipment Directive (97/23/EC))
    ATEX directive 94/9/EG
    CSA Intrinsic Safety certification
    Ex II 2G
    Ex II 2D
    Process Connection Type DIN Flange PN16
    DIN Flange PN40
    DIN Flange PN63
    DIN Flange PN100
    Size 10 mm - 100 mm
  • Design RatingMinMax
    Process media temp °C -40150
    Process media temp °F -40302
    Pressure Barg -150
    Pressure PSI -14.5725
    Flow rate air 0.000 kg/hr560000 kg/hr
    Flow rate water 0.000 kg/hr560000 kg/hr
    Product propertyValue
    Material of Construction Tentalum
    Certifications CLASS I, DIV 1
    CLASS I, DIV 2
    CLASS II, DIV 1
    CLASS II, DIV 2
    CLASS III, DIV 1
    CLASS III, DIV 2
    EX ib
    EX d
    ASME Boiler and Pressure Vessel Code
    3-A Sanitairy Standard
    PED (Pressure Equipment Directive (97/23/EC))
    ATEX directive 94/9/EG
    CSA Intrinsic Safety certification
    Ex II 2G
    Ex II 2D
    Process Connection Type Tri-Clamp
    Size 10 mm - 80 mm
  • Design RatingMinMax
    Process media temp °C -30125
    Process media temp °F -22257
    Pressure Barg 16
    Pressure PSI 232
    Flow rate air 0.040 std ft³/hr1236 std ft³/hr
    Flow rate water 0.260 Gal/hr925 Gal/hr
    Product propertyValue
    Material of Construction 316/316L Stainless Steel
    Aluminum
    Certifications Certifications: Explosion-Proof, Dust Ignition-proof, Intrinsically Safe, Division 2
    ATEX Intrinsic Safety certification
    IECEx Intrinsic safety certification
    Process Connection Type ANSI Flange 150LBS
    Size 65 mm
    2 1/2 inch