Standard Vortex Flow Meter | Introduction to Vortex Flow Meter

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1. What is the accuracy level standard for micro threaded vortex flowmeters?

The accuracy level standard for micro threaded vortex flowmeters is divided into two categories: international standards and domestic standards. The core is to define the accuracy level by the maximum allowable error.

2. According to the current domestic standard GB/T 2624-2019, the accuracy level and corresponding maximum allowable error of micro thread vortex flowmeter are: | Accuracy level | Maximum allowable error | | ---- | | | | 0.5 level | ± 0.5% | 1 level | ± 1.0% | | 1.5 level | ± 1.5% | 2 level | ± 2.0% | 2.5 level | ± 2.5% | The higher the accuracy level, the stronger the accuracy of the measurement results. When selecting, it is necessary to comprehensively judge based on actual measurement needs, range, and other factors.

2. What are the standard dimensions before and after installing the flowmeter? Before installing the flowmeter, the required length of the standard straight pipe section upstream and downstream may vary depending on factors such as the flowmeter type and pipeline conditions. For orifice flow meters, the length of the upstream straight pipe section is generally required to be 10 times the pipe diameter, and the downstream is required to be 5 times the pipe diameter. This is to allow the fluid to fully develop into a stable flow state before entering the flowmeter, reducing the impact of flow interference on measurement accuracy. For example, when installing an orifice flowmeter in a pipeline with a diameter of 100 millimeters, the length of the upstream straight pipe section should reach 1000 millimeters and the downstream should be 500 millimeters. Vortex flowmeters typically require an upstream straight pipe length of 15 to 20 times the pipe diameter and a downstream length of 5 to 10 times the pipe diameter. Because vortex flowmeters are commonly used to measure flow by detecting fluid eddies, a stable flow state is crucial for the formation and accuracy of eddies. Electromagnetic flow meters have relatively low requirements for upstream and downstream straight pipe sections, with a diameter of 5 times the diameter of the pipe when starting upstream and 3 times the diameter of the pipe when starting downstream. However, the specific standard dimensions will be specified in detail in the product manual of the flowmeter. When installing, it is necessary to strictly follow the requirements of the manual to ensure the accuracy and reliability of the flowmeters roll measurement.

3. Introduction to Vortex Flow Meter

Vortex flow meter is researched and produced based on the Karman vortex principle, mainly used for flow measurement of industrial pipeline media fluids, such as gas, liquid, vapor and other media.

1. Working Principle: A vortex flowmeter is a type of flowmeter designed and manufactured using the Karman vortex principle and contemporary electronic technology. The frequency of vortex generation is prop

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