The vehicle fuel dispenser flow meter is an instrument used to measure the flow of the liquid flowing through the pipeline. The main function of this fuel dispenser mechanical accessory is to meter the volume of the output fuel and to convert the volume of the output oil into an angular displacement of the flowmeter's drive shaft. The internal mechanical structure of the flowmeter enables the flowmeter to accurately measure the volume of oil. Highly accurate flowmeter can ensure the accuracy of fueling volume and avoid fueling disputes caused by metering errors, which helps to improve the reputation of gas stations.