Air Velocity Flow Sensors (185 companies)
Air velocity flow sensors measure air velocity or volume flow using insertion probes or capture hoods.
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Electromagnetic Flow Meters (37 companies)
Electromagnetic flow meters operate on Faraday's law of electromagnetic induction, which states that a voltage is induced when a conductor moves through a magnetic field.
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Flow Computers, Totalizers and Indicators (215 companies)
Flow computers, totalizers, and rate indicators integrate the functions of flow and temperature measurement, computation, data acquisition, input / output (I/O) standardization, and closed loop control. They require external sensor inputs and may be used as local rate indicators.
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Flow Controllers (351 companies)
Flow controllers monitor and maintain flow-rate variables, typically in process applications.
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Flow Meters (1142 companies)
Flow meters (flowmeters) and flow sensors are devices used for measuring the flow rate or quantity of a moving fluid or gas.
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Flow Transmitters (170 companies)
Flow transmitters provide electrical outputs that are proportional to flow inputs. They use flow meters to measure the flow of liquids and gases.
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Gas Flow Meters (303 companies)
Gas flow meters are used for measuring the flow or quantity of a moving gas in an enclosed pipe or passage.
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Liquid Flow Meters (425 companies)
Liquid flow meters are used for measuring the flow or quantity of a moving fluid.
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Liquid Leak Detectors (144 companies)
Liquid leak detectors sense when a liquid is leaking from a pipe, tank, or other receptacle.
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Mass Flow Meters and Controllers (186 companies)
A mass flow meter is a device that consist of a mass flow sensor or transducer and signal processing electronics.  Fluid (liquid or gas) flow is measured in mass rate units (lbs/min).
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Mass Flow Switches (33 companies)
Mass liquid flow switches and mass gas flow switches are devices used for measuring the flow or quantity of a moving liquid or gas in terms of a unit of mass per unit time, such as pounds per minute. These devices may be sensors with electrical output or may be stand-alone instruments with local displays and controls.
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Open Channel Flow Sensors (56 companies)
Open channel flow sensors measure fluid flow through open channels. Learn more about Open Channel Flow Sensors

Paddlewheel Flow Meters (54 companies)
Paddlewheel flow meters have a paddle wheel that is perpendicular to the flow path. The rotor axis is positioned to limit contact between the paddles and the flowing media.
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Positive Displacement Flow Meters (118 companies)
Positive displacement flow meters measure the volume or flow rate of a moving fluid or gas by dividing the media into fixed, metered volumes. These devices consist of a chamber that obstructs the media flow and a rotating or reciprocating mechanism that allows the passage of fixed-volume amounts.
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Rotameters (78 companies)
Rotameters are typically tapered glass tubes positioned vertically in the fluid flow. A float within the tube rides upward in relation to the amount of flow.
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Sight Flow Indicators (129 companies)
Sight flow indicators provide a quick, reliable and economical way to verify the flow of fluids through industrial process lines.
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Sight Windows (107 companies)
Sight windows are an effective and economical way of viewing tank, pressure vessel and piping systems interiors. They are also referred to as sight glasses.
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Solids Flow Meters (37 companies)
Solids flow meters measure the flow rate of bulk solids, powders, grain, etc. Learn more about Solids Flow Meters

Turbine Flow Meters (202 companies)
Turbine flow meters measure the rate of flow in a pipe or process line via a rotor that spins as the media passes through its blades.
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Ultrasonic Flow Meters (135 companies)
Ultrasonic flow meters use sound waves to determine flow rates. They can be either Doppler Effect meters or Time-of-Flight meters.
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Velocity Flow Switches (71 companies)
Gas flow switches and liquid flow switches, velocity, are used to measure the flow or quantity of a moving fluid in terms of velocity, such as feet per minute.
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Volumetric Gas Flow Switches (63 companies)
Volumetric gas flow switches are devices with a switch output used for measuring the flow or quantity of a moving gas in terms of a unit of volume per unit time, such as cubic feet per minute.
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Volumetric Liquid Flow Switches (119 companies)
Volumetric liquid flow switches measure the flow or quantity of a moving fluid in terms of a unit of volume per time, such as liters per minute. These flow sensing devices have a switch output.
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Vortex Flow Meters (74 companies)
Vortex flow meters are flow sensors that detect the frequency of vortices shed by a bluff body placed in a flow stream. The frequency of the vortices is proportional to the flow velocity.
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