KOBOLD DVZ Series vortex flowmeters have no moving parts and target applications where reliability and low cost are focal points. The vortex flowmeter senses the flow rate of low-viscosity liquids using the vortex-shedding principle. A small obstruction (bluff body) is placed in the flow path. As fluid flows across the bluff body, small, low-pressure areas (vortices) are created just behind the bluff body.
The position of the vortices alternates to either side of the bluff body in a uniform pattern. The frequency of the vortex shift is directly proportional to flow rate. This shift in the vortices is detected by a very sensitive pressure sensor and is processed as a scaled flow rate signal. The DVZ Series vortex flowmeter has no moving parts and is thus very reliable. It is available with a PPS body and your choice of either nickel-plated brass or 316 stainless steel fittings.
The bluff body is available in either the standard PPS or optional ceramic material, which has excellent long-term wear characteristics even under harsh operating conditions. Available outputs for the KOBOLD DVZ Series vortex flowmeter include pulse frequency, 4-20 mA, adjustable relay, and compact electronics with LED digital flow rate display, 4 to 20 mA output and adjustable transistor switch options. For further insights, take a look at the DVZ Series datasheet and DVZ Series user manual.