Differential pressure flow meter/monitor – RCD - Kobold
The Kobold flow meter model RCD is used for measuring and monitoring liquid and gas flows. The device works on the well-known principle of the Venturi nozzle. A small pressure difference proportional to the flow is produced by the flowing medium at an orifice constriction (nozzle) in the device housing.
The shape of the nozzle is based on the flow, whereby the flow characteristic remains constant over the entire measuring range. Drill holes are located in the housing fitting to absorb the resulting differential pressure and transfer it to a differential-pressure measuring cell fitted in the housing.