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『Changzhou rotor flowmeter』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
1. Working principle of rotor flowmeter
2. How does the rotor flowmeter read?
How to read a rotor flowmeter? The reading method is usually pointer reading, but there are also LCD readings. Pointer reading only reads instantaneous flow rate. For LCD, Sun Zhengmeng has instantaneous and cumulative flow rates. If there is bridge output, it can also be read from the display instrument. Reference: The intersection of the maximum cross-section of the rotor and the engraved line on the glass tube is the flow rate value. Read the markings on the surface clearly, but be aware that if the liquid is not water, and the temperature and pressure are not standard conditions, the reading should be corrected using a formula that is generally applicable.
3. What are the types of rotary flow meters?
Rotary flow meters are mainly divided into two categories: glass rotors and metal tube floats.
. 1. Glass rotor flow meters are usually of the local indication type or with switch signal output, which has strong corrosion resistance and can be used to detect the flow of acids (except hydrofluoric acid), alkalis, oxidants, and other corrosive gases or liquids. They are commonly used in industries such as chemical engineering, Shennian Qi Pharmaceutical, papermaking, and sewage treatment. However, due to the fragility of glass material, it is less commonly used at critical control points. Metal tube float flow meters are usually made in the form of flow transmitters, which can be divided into electric remote transmission and on-site pointer display types according to different converters. It mainly consists of three parts: indicators (such as intelligent indicators, local indicators), floats, and conical meas
4. 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
6. When installing the rotor flowmeter, the fan bureau should ensure that the verticality of the measuring tube is better