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『Quotation for rotor flowmeter』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
What is the difference between orifice flowmeter, pitot tube, and rotor flowmeter? Orifice flow meters, pitot tubes, Venturi flow meters, and rotor flow meters are all tools used to measure flow, but there are some differences in their working principles, scope of application, measurement accuracy, and service life due to chain cracking. 1. Working principle: The orifice flowmeter measures the flow rate by utilizing the local pressure difference generated by the orifice plate holes. The pitot tube utilizes relative motion between a fluid in motion and a stationary object to measure velocity and flow rate. The Venturi flowmeter measures the flow rate by utilizing the pressure difference generated by the high-speed moving fluid in the contraction section of the pipeline. Rotary flowmeter uses the volume of liquid flowing through the rotor to achieve flow measurement. Scope of application: Orifice flowmeter is suitable for measuring medium and high viscosity liquids and gases. Pitot tubes can measure the flow rate and flux of various liquids and gases. The Venturi flowmeter is suitable for measuring low to medium viscosity liquids and gases, with minimal pressure loss in shed pipelines and higher accuracy than orifice plates under large pipe diameter conditions. Rotary flow meters are suitable for measuring liquids and gases with high viscosity. Measurement accuracy: Generally speaking, the accuracy of rotary flow meters is relatively high, and the measurement accuracy of orifice flow meters under low flow rate and high viscosity fluid conditions will be greatly affected. The manufacturing cost of Venturi flow meters is relatively high. In general, orifice flow meters have a longer service life and are cheaper in price.
2. How to choose a rotor flowmeter?
Selection Notes
1. For the selection of remote output metal tube float rotor flowmeter, it is necessary to choose a rotor flowmeter that is suitable for the explosion-proof requirements of the application site; During installation, attention should also be paid to the fastening of the instrument casing and the sealing of the wiring ports after power on, to meet the requirements of explosion prevention, protection, and corrosion prevention. 2. For places where the temperature of the measured medium is too high (>120 ℃) or too low, insulation or heat insulation measures should be taken for the sensor part of the rotor flowmeter. To ensure the normal working environment temperature of the signal converter indicator, a high temperature indicator should be selected. 3. For some measured media that require insulation or cooling, a jacket type rotor flowmeter should be selected. The heat tracing or cooling interface of the standard metal tube float rotor flowmeter adopts DIN2501 DN15 PN1.6 flange connection. If other source car flanges or threaded connections are required, please specify
4. For unstable pressure of the inlet medium of the rotor flowmeter, especially for gas measurement, damping structure should be selected to ensure accuracy and service life. If other standards are used, please indicate