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『Applicable conditions for Venturi flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
What are the flow regulation methods for metering pumps?
2. Scope of application of Venturi flowmeter
Venturi flowmeter has a wide range of applications, and its adaptability in nominal diameter is reflected between 50mm and 1200mm. For pipe diameters exceeding 1200mm, special calibration is required.. Specifically, the coarse casting shrinkage section is suitable for pipes with a diameter of DN100mm to 800mm, the mechanical processing shrinkage section is suitable for pipes with a diameter of DN50mm to 250mm, and the coarse welding iron plate shrinkage section is suitable for pipes with a diameter of DN200mm to 1200mm. In terms of throttling aperture ratio, the Venturi flowmeter requires a range of 0.3 to 0.75. Similarly, the aperture ratio of the rough casting shrinkage section is limited to 0.3 to 0.75, the range of the mechanical processing shrinkage section is slightly relaxed to 0.4 to 0.75, and the limitation of the rough welding iron plate shrinkage section is still between 0.4 and 0.75. In terms of Reynolds number, the working performance of the Venturi flowmeter is stable, and its applicable range is 2 × 105 to 2 × 106. Specifically, for different shrinkage sections, the Reynolds number range of the rough casting shrinkage section is 2 × 105 to 2 × 106, the range of the mechanical processing shrinkage section is slightly smaller, 2 × 105 to 106, and the Reynolds number range of the rough welded iron plate shrin
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3. Classification of Venturi Flowmeters
The classic Venturi flowmeter is a widely used flow measurement tool, which has the advantage of having minimal permanent pressure loss, and can ensure accurate measurement even in cases where the length of the front and rear straight pipe sections is short.
. It has high durability, long service life, and is suitable for flow calculation of various media. For applications that require handling large diameters, high pressures, and hazardous media, a sleeve type Venturi tube is an ideal choice. It is designed specifically for the petrochemical industry, capable of effectively handling flow measurement and control tasks under special conditions such as those of NozoNobel, ensuring the stability and safety of the system. The Venturi nozzle is a more flexible flow meter that is also suitable for measuring various media. Compared with the classic Venturi tube, the body installation length of the Venturi nozzle is shorter, which makes it more convenient to install and maintain. It also has the characteristics of low pressure loss and short straight pipe section requirements, which can provide accurate and efficient flow measurement.