Brochure: Vortex Flowmeter FV4000 And Swirl Flowmeter FS4000

When a flowing fluid meets an obstruction, pressure variations are created in the fluid, which cause eddies to shed at the obstruction. This phenomenon is utilized in the Vortex and Swirl flowmeters. The eddies are formed in the fluid at a geometrically defined obstruction (Vortex and Swirl bodies) whose frequency is measured by a sensor. The flowrate of liquids, gases and steam is determined precisely and reliably from this frequency measurement.