Glass rotor flowmeterThe selection can be considered from the following aspects.
1. Choose according to the price. Generally speaking, high precision comes at a higher price. The accuracy level of the instrument should be selected according to the measurement purpose. If only the measurement medium throughput needs to be controlled, adjusted through trial operation, and the throughput needs to be consistently stable in the future, then accuracy is secondary.
2． Glass rotor flowmeter Its own performance. After the above conditions are determined, generally speaking, if there is no significant change in price, priority can be given to using a needle valve placed on the upper part of the flowmeter; For those with larger flow holes, it is a direct flow scale; Simple in structure; Smaller external dimensions, etc. If it is in a small flow range, the ball float type can be used because it is stable, less prone to dust accumulation, has high accuracy, and has good interchangeability during measurement.
3. Object of measurement. Measure the type of medium, pressure level, and chemical properties. For corrosive media such as liquid and gas media, corrosion-resistant flow meters should be selected.