Basic knowledge of flow meter scale

Abstract: the basic knowledge of flow meter scale comparative information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Measurement is one of the four most important process parameters ( The other is the temperature, pressure and level) 。 The adopted technology of the closed pipe flowmeter with its classification, as follows: the differential pressure flow meter ( DP) It is a common traffic zui technologies, including orifice plate, venturi tube, and the speed of sound. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a basic knowledge of flow meter scale comparison article details. Measurement is one of the four most important process parameters ( The other is the temperature, pressure and level) 。 The adopted technology of the closed pipe flowmeter with its classification, as follows: the differential pressure flow meter ( DP) It is a common traffic zui technologies, including orifice plate, venturi nozzle and the speed of sound. DP flowmeter can be used to measure the most liquid, gas and steam flow rate. DP flowmeter has no moving parts, widely used, easy to use. But the jams, it can produce pressure loss, affect the accuracy. The accuracy of the flow measurement accuracy depends on the pressure gauge. Volumetric flow meter ( PD) PD meter used to measure the volume of a liquid or gas flow rate, it will introduce a fluid measurement space, and calculate the rotational frequency. Impeller, gear, piston or orifice to shunt flow, etc. The accuracy of the PD flowmeter is higher, is one of the several methods of measuring viscous liquid. But it also can produce the pressure of unrecoverable error, and is equipped with moving parts. Turbine meter when the fluid flows through the turbine flow time, fluid makes the rotor rotate. The rotation of the rotor speed is associated with the speed of the fluid. By the average flow velocity of fluid, you feel the rotor flow or volume is deduced. Turbine flowmeter can accurately measure the clean liquid and gas. Like PD flowmeter, turbine flowmeter and produce the pressure of unrecoverable error, also need to moving parts. Electromagnetic flowmeter has the conductivity of the fluid flows through the electromagnetic field, and the speed of the fluid can be obtained by measuring the voltage. Electromagnetic flowmeter has no moving parts, are not affected by the influence of the fluid. In the conductive liquid filled tube measured accuracy is high. Electromagnetic flowmeter can be used to measure slurry flow velocity of the fluid. Ultrasonic flowmeter travel time method and doppler method is often USES the method of ultrasonic flowmeter, used to measure average velocity of the fluid. Like other speed meter is to measure the volume flow meter. If it is unimpeded flow meter, ultrasonic transducer mounted on the pipe outside, you don't need to insert. It is suitable for almost all liquids, including slurry, high precision. But the pipeline dirty can affect the accuracy. Vortex street flowmeter vortex flowmeter is placed in the fluid a streamlined vortex occurrence body, swim speed of vortex and the speed of the fluid with a certain proportion, and volume flow is calculated. Vortex street flowmeter used and measurement of liquid, gas or steam. It has no moving parts and no dirt. Vortex flowmeter can produce noise, but also for fluid with high velocity, to produce a spiral. Thermal mass flowmeter by measuring the temperatures of the fluid or thermal sensor to measure fluid velocity. Thermal mass flowmeter has no moving parts or hole, can accurately measure the flow of gas. Thermal mass flowmeter is one of the few technique which can measure the mass flow rate, and a few used to measure large diameter gas flow technology. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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