Key points to consider when selecting a small liquid flowmeter

The measurement of small flow rates is widely used in many industries. The smaller the flow rate, the more difficult it is to measure, which is also a significant challenge for instrument manufacturers. There are several key points to note when selecting flow meters for measuring small flow rates.
1. Instrument performance refers to the accuracy, repeatability, linearity, range ratio, pressure loss, initial flow rate, output signal, and response time of the instrument. When selecting a flowmeter, careful analysis and comparison of the above indicators should be carried out to select an instrument that can meet the flow requirements of the measuring medium.
2. Economic factors refer to purchase costs, installation costs, maintenance costs, calibration costs, and spare parts, which are also affected by the performance, reliability, and lifespan of gas flow meters.
3. The installation conditions refer to the flow direction of gas, the direction of the pipeline, the length and diameter of the upstream and downstream straight pipes, the spatial position, and the fittings, all of which will affect the accurate operation, maintenance, and service life of the gas flow meter.
4. Fluid characteristics mainly refer to the pressure, temperature, density, viscosity, compressibility, etc. of gas. As the volume of gas varies with temperature and pressure, compensation and correction should be considered.
5. The accuracy level and function of the instrument are selected based on measurement requirements and usage scenarios to achieve cost-effectiveness.
By paying attention to the above points, the selection of flow meters can provide guidance, and the chosen flow meters can bring convenience to industrial production.