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Different Types of Flow Meters

https://www.proteusind.com : Different Types of Flow Meters : Flow meter is an instrument that is used to gauge the flow of gases or fluid through a pipe. Flow measurement applications differ extensively with respect to the conditional benchmarks, situational limitations, and engineering requirements. <br> Flow meter has other names such as fluid meter, fluid sensor, flow sensor and flow gauge. They have a wide range of applications across different industries based on its basic function, which is to offer precise monitoring and measurement for flow of fluids or gases.

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Different Types of Flow Meters

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  1. Different Types of Flow Meter

  2. Different Types of Flow Meter Flow meter is an instrument that is used to gauge the flow of gases or fluid through a pipe. Flow measurement applications differ extensively with respect to the conditional benchmarks, situational limitations, and engineering requirements. Flow meter has other names such as fluid meter, fluid sensor, flow sensor and flow gauge. They have a wide range of applications across different industries based on its basic function, which is to offer precise monitoring and measurement for flow of fluids or gases.

  3. Differential Pressure Flow Meters Differential pressure flow meters measure the differential pressure across an orifice where flow is directly related to the square root of the differential pressure produced. There are also primary and secondary elements in differential flow meters. The primary element produces change in kinetic energy using either flow nozzle, pitot tube, orifice plate, or venturi flow meters. The secondary element measures the differential pressure and provides the signal.

  4. Orifice Plates An orifice plate is a plate with a circular hole in the middle of it. When fluid flows through the hole, the velocity will increase and the pressure will decrease. Orifice plates are commonly used when the flow is continuous and occupies the entire pipe.

  5. Flow Nozzles A Flow Nozzle is very similar to an orifice plate, the main difference is that flow nozzles have a gradual constriction rather than the abrupt constriction of an orifice plate. Flow nozzles are common for high velocity, low viscosity flows. Flow nozzles also have a greater flow capacity when compared to other differential pressure meters.

  6. Positive Displacement Flow Meters Positive displacement (PD) flow meters measure the volume filled with fluid, deliver it ahead and fill it again, which calculates the amount of fluid transferred. It measures actual flow of any fluid while all other types of flow meters measure some other parameter and convert the values into flowrate. In PD flow meters, output is directly related to the volume passing through the flow meter. PD flow meters include piston meters, oval-gear meters, nutating disk meters, rotary vane type meters, etc.

  7. Piston Flow Meters Piston flow meters or rotary piston displacement meters are most commonly used for domestic water measurement. They operate by having a piston rotate in a chamber with a known volume. Every rotation the piston makes passes a volume of water equivalent to the chambers known volume down the pipe.

  8. Gear Flow Meters Gear flow meters consist of two round gears that are mounted in overlapping compartments. When a fluid flows through the inlet it gets trapped in the teeth of the gear and is transported to the outlet. Knowing the volume of the voids between the teeth and the wall and the number of rotation, the flow rate can be calculated.

  9. Open Channel Flow Meters Measurement of liquid in open channels include v-notch, weirs and flumes. These dam-like structures, or overflows, allow for a limited or concentrated free-flow of liquids based on the unique shape and size of the structure. This type of flow meter allows for a reading of the flowrate to be calculated.

  10. Flumes Flumes are specifically shaped structures that are placed in the flowing fluid. Under free flow the flume forces the flow to accelerate in a way that can be characterized by known relationships between the head of the fluid, and the fluids flow rate. Flumes generally consist of three sections; the inlet, the throat, and the diverging exit.

  11. Weir Weirs are generally structures that are placed as an obstruction in the fluid flow such as a dam with a special shaped opening at the top. When the weir is placed perpendicular to the flow its causes the fluid level to rise, this rise is usually recorded by a device upstream of the weir.

  12. Electromagnetic Flow Meters Magnetic flow meters or, “mag meters”, use the principal of Faraday’s law of electromagnetic induction to calculate the fluid flow rate. Faraday’s law states that a voltage will be induced when a conductor moves through a magnetic field. For this case, the liquid fluid serves as the conductor and the magnetic field is applied to the metering pipe.

  13. Contact Us Proteus Industries Inc. 340 Pioneer Way Mountain View California USA 94041, (650) 943-4127 (650) 965-9355 sales@proteusind.com Technical Support David Chiasson (650) 943-4111 Mark Malfatti(650) 943-4127 Alex Gahrahmat (650) 943-4158 Customer ServiceWiki Fragio  (650) 943-4110Dana Laing  (650) 943-4106Ruth Ricacho  (650) 943-4135

  14. www.proteusind.com

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