Vortex flowmeter is a volume flowmeter that measures the volume flow, standard volume flow or mass flow of gas, steam or liquid according to the Karman vortex principle. It is mainly used for flow measurement of medium and fluid in industrial pipelines, such as gas, liquid, steam and other media.
It is characterized by small pressure loss, large measuring range, high precision, and is almost not affected by parameters such as fluid density, pressure, temperature, viscosity, etc. when measuring the volume flow of the working condition. No moving mechanical parts, so high reliability and low maintenance. Instrument parameters can be stable for a long time. The vortex flowmeter adopts piezoelectric stress sensor, which has high reliability and can work in the working temperature range of -20℃～+250℃. There are analog standard signals and digital pulse signal output, which is easy to be used with digital systems such as computers. It is a relatively advanced and ideal measuring instrument.
Vortex flowmeter technical indicators:
1. Measuring medium: gas, liquid, steam
2. Connection method: flange-mounted, flanged, plug-in
3. Diameter specification Flange-mounted caliber selection 25, 32, 50, 80, 100
4. Flange connection caliber selection 100, 150, 200
5. Flow measurement range Normal measurement flow velocity range Reynolds number 1.5×104～4×106; gas 5～50m/s; liquid 0.5～7m/s.
6. Normal measurement flow range The liquid and gas flow measurement ranges are shown in Table 2; the steam flow range is shown in Table 3.
7. Measurement accuracy Class 1.0 Class 1.5
8. Measured medium temperature: normal temperature: -25℃～250℃, high temperature: -25℃～350℃
9. Output signal Pulse voltage output signal High level 8～10V Low level 0.7～1.3V
10. The pulse duty cycle is about 50%, and the transmission distance is 100m
11 Pulse current remote transmission signal 4 ~ 20 mA, transmission distance is 1000m
12 Vortex flowmeter operating environment Temperature: -25℃～+55℃ Humidity: 5～90% RH50℃
13. Material Stainless steel (SS304, SS316)
14. Power supply DC24V or lithium battery 3.6V
15. Explosion-proof grade Intrinsically safe iaIIbT3-T6, protection grade IP65.