They have a simple, rugged design and with only a few almost frictionless moving internal parts there is hardly any internal wear. This feature helps to provide a long service life. The MidFlow sliding vane flow meter has no mechanical seals saving you from regular maintenance and possible leakage of process liquids into the environment. The flowmeter is driven by the process liquid which makes it suitable for locations without power supply. The high accuracy of the flowmeter (down to 0.1% and repeatability 0.05%) is not influenced by process pressure, temperature,mechanical pipe strain or liquid turbulence and therefore straight inlet and outlet pipe diameters are not required.