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Johnson Offshore Intake Systems (JOIS™)
Unique Selling Point
- Easy to install
- Most even through-flow slot velocities and lowest fish entrainment risk due to the Johnson® original dual-flow modifier
- Non-plugging surface (only one contact point): particles larger than the slot size are retained outside the screen and particles that pass through the open area enter the screen without becoming wedged in the slot and without abrasion
- High open area despite the narrowness of individual slots due to the precise original Johnson Screens® manufacturing
- Low capital costs and no moving parts, no power consumption and low maintenance needs
- No waste stream, there is no debris brought to the surface
- More than 4,000 Johnson Screen® solutions installed worldwide
- Easy cleaning – with a periodic blast of compressed air using our Hydroburst™ system
- Low pressure loss
- Highly efficient
- Custom-designed and engineered, low operating costs
- Low capital costs and no moving parts, no power consumption and low maintenance needs
- Environmentally-friendly
- EPA Rule 316b-compliant and also compliant
- Compliant with UK fish protection laws
- Low head loss
- Proven technology for shallow water resources
- High flow capacity (up to 100,000m³/day), typically fish-friendly design with 0.05 m/s (0.15 ft/sec) through-slot velocity
- Max-Flow™ Intake design - enabling up to 40% higher flow
Insights
Johnson
Offshore Intake Systems (JOIS™) reliably combine low-maintenance Offshore
Water Intake Screens with automated cleaning via pressurized air.
The system
consists of two parts: the original Johnson Screens® Passive Water Intake Screen and the
Hydroburst™ air powered cleaning unit. Both parts are delivered as an easy to
install “plug-and-play” system.
Johnson Screens® are used as offshore screens for deep water intake systems and provide an environmental friendly and safe solution. With regards to site requirements, we provide the best suitable model from our portfolio of the three Johnson® screen types:
- Standard T-Screen
- Half-T-Screen and
- Single S-Screen
- Max-Flow™
Our products can be manufactured in multiple diameters, slot sizes and end caps and can be adapted to suit various environmental conditions and requirements. They comprise a cylindrically-shaped shell made of continuous Vee-wire®, which ensures minimized plugging.
To ensure a reliable and comfortable intake of water, the Hydroburst™ is the essential add-on for Johnson® Passive Water Intake Screens. With regards to screen size, depth and distance to the shore, we will design a suitable Hydroburst™ model, removing debris from the outer surface of the screen and hence ensuring the continuous proper screening operation. Pressurized air backwashes debris which has accumulated on the outer surface of the screen. The natural water current around the screen prevents the particles from settling on the screen again. Therefore, even and especially if the water has a high debris rate, the Hydroburst™ automatic cleaning system of JOIS™ enables reliable and comfortable operation.
The
Hydroburst™ consists of four main components completely mounted on a skid:
1)
The air receiver which stores the pressurized air so that the air can be
released whenever cleaning is necessary.
2) One or two compressors (redundant use)
filling the air receiver directly after a backwash cycle.
3) A suitable number
of automatic air valves releasing the air to the Screens in automatic or manual
way, and
4) A PLC system which manages and controls all mentioned services.
Locations and Contact
Asia
Aqseptence Group Japan Limited, Yokohama
Sales Location
Daiwa Jisho Bldg. 74-1,
Yamashita-Cho Naka-Ku, Yokohama
231-0023 Kanagawa
Japan
Tel: +81 45 661 3575
Fax: +81 45 661 1921
info.johnsonscreens.jp@aqseptence.comAsia
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.comEurope
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.comEurope
Aqseptence Group GmbH, Karlsruhe
Sales and Manufacturing Location
Hardeckstrasse 3
76185 Karlsruhe
Germany
Tel: +49 721 5001 0
Fax: +49 721 5001 213
info.geiger@aqseptence.comNorth 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.comOceania
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.comSouth America
Aqseptence Group S.A., Santiago
Sales and Manufacturing Location
Av. El Roble 315
9390381 Lampa, Santiago
Chile
Tel: +56 02 9280700
Fax: +56 02 9280705
info.johnsoncreens.cl@johnsonscreens.cl
Choose your regional contact for a product inquiry.
A sales representative will respond to you shortly via telephone or email.
Product inquiries for countries of installation outside of the locations listed below, please contact us via email. info.geiger@aqseptence.com
Aqseptence Group Japan Limited, Yokohama
Sales Location
Daiwa Jisho Bldg. 74-1,
Yamashita-Cho Naka-Ku, Yokohama
231-0023 Kanagawa
Japan
Tel: +81 45 661 3575
Fax: +81 45 661 1921
info.johnsonscreens.jp@aqseptence.comAqseptence 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.comAqseptence 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.comAqseptence Group GmbH, Karlsruhe
Sales and Manufacturing Location
Hardeckstrasse 3
76185 Karlsruhe
Germany
Tel: +49 721 5001 0
Fax: +49 721 5001 213
info.geiger@aqseptence.comAqseptence 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.comAqseptence 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.comAqseptence Group S.A., Santiago
Sales and Manufacturing Location
Av. El Roble 315
9390381 Lampa, Santiago
Chile
Tel: +56 02 9280700
Fax: +56 02 9280705
info.johnsoncreens.cl@johnsonscreens.cl