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Johnson Screens Header Laterals

Johnson Screens' Header Lateral systems provide uniform, effective distribution and collection.


Header lateral systems consist of a series of screens laterals to either a central header or hub, allow designers to provide uniform flow through treatment media (ion exchange, sand, catalysts) at a wide range of flow rates and for a variety of vessel sizes and shapes. 

A typical vessel would utilize a header lateral assembly at the top to distribute inflow evenly across the bed surface. A second assembly, located near the vessel bottom, could collect the treated flow and pass it either through the vessel sidewall or by attaching the laterals to a central manifold out the vessel bottom. For a counter-current flow, a similar distribution and collection system can be designed.

  • Assemblies are typically made from 304 stainless steel, but other grades of stainless steel or exotic alloys can be used
  • Laterals can be any diameter from 0.5 in. and greater
  • Laterals can attach to headers or hubs by many design methods, including threaded fittings, couplings or flanges
  • Lateral spacing, length, diameter and slot opening size are based on individual system requirements
  • Perforated pipe liners can be used inside screen laterals for increased collapse resistance and enhanced flow distribution
  • Slots are as small as 0.002 in. and up to 0.001 in. increments
  • Quality documentation are available, including mill certificates, welding procedure specifications and various other reports and certifications
  • Treatment before and after fabrication is available, including passivation, pickling, stress relieving, polishing and chrome plating
Custom solutions are available upon request.    

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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