The AFP tech ST inlet device is composed of one or more planes of vanes and two covers that allow the flow canalization through the slots in the vanes. 
This inlet device is widely used in horizontal and vertical vessels with a high inlet flow, composed of a mix of liquid and gas 
The two most important effects of the ST inlet device on the flow are:
- a first separation between the liquid and the gas phase.
- a regular and optimal distribution of the gas flow through the vessel

ST in a vessel 1 
ST scheme 1 

The main advantages provided by ST inlet devices are:
- reduction of the vessel dimensions with a significant saving of material, transport and installation costs.
- reduction of the diameter of the inlet nozzle
- reduction of the stress due to the flow