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[Chemical Knowledge]：Differences and Advantages of Orifice Flowmeter and Balanced Flowmeter

Read： 995 Time：16months ago Source：Transform the World with Simplicity

Orifice flow meters (Orifice Flowmeter) and balanced flow meters (Balancing Flowmeter) are two common flow measurement devices. They are different in principle, structure and accuracy, and are suitable for different application scenarios. This article will explore the differences between these two types of flow meters and their respective advantages, so as to help readers choose the flow meter that suits their needs.

orifice flowmeter is a differential pressure flowmeter based on Bernoulli's law. It creates a differential pressure by setting an orifice plate on the pipe so that the fluid passes through the orifice plate to produce local diffusion. According to the relationship between the fluid velocity and the differential pressure after diffusion, the flow rate can be calculated. Orifice plate flowmeter is simple in structure, easy to install, suitable for various media, and widely used in industrial fields. Its advantages are wide measurement range, high precision and relatively low price.

In contrast, a balanced flow meter is a flow meter based on fluid flow rate and local resistance in a pipe. It creates a pressure difference when the fluid flows through these local resistances by setting multiple orifice plates or cross-sections with varying widths on the pipe. By measuring the pressure difference and the resistance coefficient in the pipeline, the flow rate can be calculated. The balanced flowmeter is suitable for accurate flow measurement requiring high stability and linearity, and is suitable for various media such as liquid and gas. Its advantages are high precision, good stability and wide measurable range.

In practical applications, the choice of orifice flowmeter and balanced flowmeter depends on factors such as measurement requirements, media properties and cost. Orifice flowmeter is suitable for flow measurement under most general working conditions, especially for the demand of large flow measurement range; while balanced flowmeter is suitable for occasions with high requirements on flow accuracy and stability, such as petrochemical, food manufacturing and other industries.

summarize, orifice flow meters and balanced flow meters are common flow measurement devices, and they are different in principle, structure and application scenarios. The advantages of orifice flowmeter are wide measuring range, high precision and relatively low price; while the advantages of balanced flowmeter are high precision, good stability and wide measurable range. It is of great significance to select the appropriate flowmeter according to the actual demand for the accurate measurement, control and calculation of fluid flow, and it is hoped that this paper can provide some reference for readers in the selection of flow meter.

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