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Johnson Screens Radial Flow screens

The direction of your process flow can have a lot to do with your overall process efficiency. Radial flow systems produce far less pressure drop across the bed a controlling process parameter for some applications. Not only does this produce a higher yield, it’s more energy efficient as well.


Radial flow systems increase contact efficiency between the process stream and catalyst bed. Because of this, vessel size can be dramatically reduced. Given equal vessel diameters, for example, a 6.1 m / 4.5 ft. tall radial flow system can handle the same flow as a 12.2 m / 9 ft. long horizontal bed. 

Processors can save on vessel capital cost and the equipment operating costs needed to push the flow through it. Some processes achieve the highest production rate of desired product by operating with very low pressure drops across the screen and bed.

Johnson Screens is the premier supplier of screen sets requiring tight annulus tolerances.

Performance, economy and efficiency make radial flow systems especially well-suited for the following processes: 

  • Catalytic reforming (fixed bed and continuous/regenerative) 
  • Styrene dehydrogenation Nox removal Systems 
  • Solvent recovery
  • Hydrodesulphurizing units
  • Mercury removal
  • Ammonia converters
  • Isomerization systems
  • Other thin-bed annulus systems
  • Molecular Sieve Dehydrators 

Johnson Screens' expertise with radial flow processes enables us to provide you with superior reactor internal designs and products.

Locations and Contact


Aqseptence Group Japan Limited, Susono

Manufacturing Location
A138 Kanezawa, Susono
410-1106 Shizuoka

Tel: +81 55 997 8511

Fax: +81 55 997 8514



Aqseptence Group (India) Private Limited, Ahmedabad

Sales and Manufacturing Location
E-540, GIDC, Sanand-II Industrial Estate,
Village: Bol, Tak: Sanand,
Gujarat 382170, Ahmedabad

Tel: +91 2717 618000



Aqseptence Group Pty Ltd., Brisbane

Sales and Manufacturing Location
88 Brickyard Road,
Geebung 4034 QLD
PO Box 85, Virginia DC,
QLD 4014

Tel: +61 7 3867 5555

Fax: +61 7 3867 5566



Aqseptence Group SAS, Availles-en-Chatellerault

Sales and Manufacturing Location
Zone Industrielle
86530 Availles-en-Châtellerault

Tel: +33 5 4902 1600

Fax: +33 5 4902 1616



Aqseptence Group SAS, Soissons

Sales and Manufacturing Location
108 route de Reims
02200 Billy-sur-Aisne

Tel: +33 3 23 75 05 42

Fax: +33 3 23 75 05 43


North America

Aqseptence Group, Inc., New Brighton, MN

Sales and Manufacturing Location
1950 Old Hwy 8 NW,
New Brighton, MN 55112

Tel: +1 651 636 3900

Fax: +1 651 638 3171


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