Used to stabilize a flow of the measured medium ahead of the flow orifice device by means of the elimination or decreasing of vortex flows induced by local resistances.
- It is a disc with 32 drilled holes located on a symmetrical circular scheme.
- To be mounted on a pipeline, a straightening vane can be supplied with a set of mounting flanges. The flanges are manufactured under GOST 33259-2015.