Polytetrafluoroethylene glass rotor flowmeter

　　Polytetrafluoroethylene glass rotor flowmeterWorking principle: Rotary flowmeter, also known as float flowmeter, is a type of variable area flowmeter. It consists of a conical tube and a rotor (also known as float) placed inside the conical tube that can move up and down freely. The rotor flowmeter body can be connected to the measuring pipeline with flanges, threads, or hoses at both ends, and installed vertically on the measuring pipeline. When the fluid flows into the conical tube from bottom to top, it is intercepted by the rotor, creating a pressure difference between the upstream and downstream of the rotor. The rotor rises under the action of the pressure difference, and there are three forces acting on the rotor: the dynamic pressure of the fluid on the rotor (upward), the floating force of the rotor in the fluid (upward), and the gravity of the rotor itself (downward).

When the flowmeter is installed vertically, the center of gravity of the rotor coincides with the axis of the cone tube, and the three forces acting on the rotor are parallel to the axis of the tube. When these three forces reach equilibrium, the rotor floats smoothly at a certain position inside the cone tube. At this point, gravity=dynamic pressure+buoyancy. For a given rotor flowmeter, the size and shape of the rotor have been determined, so its buoyancy and self gravity in the fluid are known constants. Only the dynamic pressure of the fluid on the float varies with the magnitude of the incoming flow velocity. Therefore, when the incoming flow velocity increases or decreases, the rotor will move upward or downward, and the flow cross-sectional area at the corresponding position will also change until the flow velocity reaches equilibrium at the corresponding speed, and the rotor will stabilize at the new position. For a given rotor flowmeter, the position of the rotor in the cone tube corresponds one-to-one with the flow rate of the fluid passing through the cone tube. This is the measurement principle of the rotor flow meter.

DK seriesPolytetrafluoroethylene glass rotor flowmeterIt is manufactured using advanced technology, with a lightweight structure, beautiful appearance, simple installation, easy maintenance, and the ability to easily replace cone tubes and floats. The flow scale is clear and the adjustment is sensitive, suitable for measuring small flow rates in various industries. Commonly used in heat treatment furnaces, also known as heat treatment furnaces, the LZB-DK800-6P glass rotor flowmeter supplied by Hongqian Instrument has received rave reviews. DK800-6P glass rotor flowmeter, small flow glass rotor flowmeter.

Glass rotor flowmeter