Burkert FLOWave flowmeter

Bürkert's FLOWave flowmeter uses technology incorporating SAW (surface acoustic waves) to facilitate inline flow measurement without the need for any sensors or constrictions inside the measuring tube. The interior surface can be manufactured with the same surface finish applied to the rest of the pipeline. In terms of hygiene, cleaning and flow conditions, there are absolutely no differences compared to any other straight piece of pipe.

In addition to volume flow, FLOWave measures temperature and density. Based on this data, the mass flow rate can be calculated.

The flowmeter principle works even with stagnant liquids so that results are available even with the smallest flow volumes. It  recognises quick flow rate changes and is therefore suitable for very fast filling processes.

The high excitation frequency of 1.5 MHz avoids disturbances due to inherent vibration in the plant. Magnetic and electrical effects have no influence on measurements. This technology does not depend on the conductivity of the fluid, which significantly expands its scope of application.

SAW is claimed to be the only flowmeter technology that can distinguish between laminar and turbulent flows.