Many flow meter technologies, require several diameters of straight pipe run to meet their published accuracy specification. This straight-run is required to provide a swirl-free and repeatable flow profile to the flow meter.
However, in practical applications, industrial plant piping is rich with elbows, valves, tees and vessels. 20 – 30 diameters of straight pipe can be a real challenge to find. Pipe bends & valves create an unrepeatable, asymmetric and swirling flow profile ultimately resulting in flow meter inaccuracies.
Furthermore at low-flows the transitional zone between laminar and turbulent flow can induce additional inaccuracies.
The Vortab range of flow conditioners can eliminate these errors in as little as 3 pipe diameters.