Dryer for drying compressed gas and method of regenerating a desiccant material comprised within said dryer

A dryer provided with an inlet for receiving a flow of compressed gas and an outlet for providing dry air, said dryer comprising:

• a first and a second adsorption vessel connected in parallel, each of said first and second adsorption vessels comprising:
• an inlet flow conduit connected to said inlet and an outlet flow conduit connected to said outlet for allowing a flow of compressed gas therethrough, a desiccant material provided therein, a control valve provided on said inlet flow conduit, and an outlet valve provided on said outlet flow conduit;
• a depressurization unit adapted to be connected to the inlet flow conduit of each of said first and second adsorption vessels;
• wherein the dryer further comprises a flow reducer adapted to be connected to the inlet flow conduit of each of the first and second adsorption vessels and allowing a flow of fluid therethrough, wherein said flow reducer comprises a perforated disk configured in a way to control the flow of compressed gas through the flow reducer, wherein the perforated disk comprises a plurality of perforations provided on both surfaces of the perforated disk, and
• said control valves are adapted to be switched in a first state in which compressed gas is allowed to flow through the inlet flow conduit of one of said adsorption vessels, and a second state in which one or both of said inlet flow conduits is in fluid connection with the depressurization unit,
• wherein said flow reducer further comprises an arm structure created in between each two perforations, said arm structure creating a slope gradually increasing in height between the outer circumference of the perforated disk and an elevated central area, and
• wherein said arm structure is present on both sides of the perforated disk.