. Differential pressure flowmeter (DP): Differential pressure flowmeter (DP): is the most common flow technology technology, including orifice flowmeters, V-cone flowmeters, venturis, and sonic nozzles. DP flow meters can be used to measure the flow rates of most liquids, gases, and vapors. The DP flow meter has no moving parts and is widely used and easy to use. However, after the blockage, it will produce pressure loss, affecting the accuracy. The accuracy of the flow measurement depends on the accuracy of the pressure transmitter.
2. Ultrasonic flowmeter: Ultrasonic flowmeter: The propagation time method and the Doppler effect method are methods commonly used in ultrasonic flowmeters to measure the average velocity of a fluid. Like other speedometers, it is a meter that measures volume flow. It is an unobstructed flowmeter. If the ultrasonic transmitter is installed outside the pipeline, it does not need to be inserted. It is suitable for almost all liquids, including slurries, with high precision. However, the fouling of the pipeline can affect the accuracy.