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Scale Traps

Down-flow processes often carry metallic contaminants or scale, which can quickly plug the top surface of a vessel’s catalyst bed.

Unique Selling Point

Standard scale traps range from: OD : 102 mm / 4.0 in. to 168 mm / 6.6 in. Length : 300 mm / 11.8 in. to 1 m / 39.4 in. Slot opening : 0.5 mm / 0.020 in. to 1.5 mm / 0.060 in. Total screen open area can be as high as 50 percent

Insights

Johnson Screens effectively increase the surface area of the bed which disperses the scale over a wider area, thus extending the bed’s useful life. This is easily done by placing an array of screens in the upper part of the catalyst bed where, depending on screen size and placement, they can increase the total effective bed area by up to 400 percent and trap most of the contaminants present in the flow. 
Not only do the screens resist normal operating stresses, but they can also survive being dumped with the catalyst. And when it’s time for routine cleaning, they can be vigorously wire brushed or blasted without breaking or tearing.

Locations and Contact

Asia

Aqseptence Group Japan Limited, Susono

Manufacturing Location
A138 Kanezawa, Susono
410-1106 Shizuoka
Japan

Tel: +81 55 997 8511

Fax: +81 55 997 8514

info.johnsonscreens.jp@aqseptence.com

Asia

Aqseptence Group (India) Private Limited, Ahmedabad

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

Tel: +91 2717 618000

info.johnsonscreens.in@aqseptence.com

Australia

Aqseptence Group Pty Ltd., Brisbane

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

Tel: +61 7 3867 5555

Fax: +61 7 3867 5566

info.johnsonscreens.au@aqseptence.com

Europe

Aqseptence Group SAS, Availles-en-Chatellerault

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

Tel: +33 5 4902 1600

Fax: +33 5 4902 1616

info.johnsonscreens.fr@aqseptence.com

Europe

Aqseptence Group SAS, Soissons

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

Tel: +33 3 23 75 05 42

Fax: +33 3 23 75 05 43

info.johnsonscreens.fr@aqseptence.com

North America

Aqseptence Group, Inc., New Brighton, MN

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

Tel: +1 651 636 3900

Fax: +1 651 638 3171

info.johnsonscreens.us@aqseptence.com

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