Vortex valves

Fluidic diodes and vortex valves are passive devices whose use in future nuclear power plants (NPPs) is currently under evaluation with reference to their potential use as check valves or actuation valves in safety-related systems. Fluidic diodes, used in reprocessing plants and chemical industries, are one-way valves with no moving parts. They are characterized by a very high flow resistance in one... 

Fig. —Vortex breaker ttelpe prevent gas re-entralnment when liquid control valve opens.

Vortex breeker. It is normally a good idea to include a simple vortex breaker, as shown in Fig. 8, to prevent a vortex from developing when the liquid control valve is open. A... 

An associated problem concerning a water-dump-valve vortex reaching up into the interface can also cause oily effluent water even if the Interface is clear. This can be eliminated by the installation of a vortex breaker installed over the interior of the outlet. 

D — flow-through detector x = special confluent joint for attaining turbulent mixing and vortex formation dashed arrows, = devices for simultaneous and sudden introduction of sample and reagent solutions (GO period), such as hammers, pistons and valves. For details, see text. 

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