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(U.S. Patent Nos. 5,851,087 & 6,089,790)
Key Features of ISI’s Brushed Cone Intake / Fish Screen
- Positive brushing action prevents debris buildup and bio-fouling
- Cone shape is strong and easy to clean
- Internal flow baffle distributes flow evenly across the screen surface
- Screen can be easily installed or removed
Control & Power Features
- Marine-duty hydraulic drive motor rotates cleaning brushes
- Control panel allows user defined cleaning cycles
- Solar power option
- Interfaces with customers SCADA controls
- Remote monitoring and control available
Customization
- Wedgewire slot width options
- Screen design and construction for extreme design loads
- Custom control panels to match customers equipment if necessary
- Screen diameter and height to meet application needs
How the Self-Cleaning Cone Screen Works
- The Cone Screen has a stainless steel wedgewire surface supported by a stainless steel frame.
- A hydraulic motor, mounted inside the cone, rotates three brush arms across the screen surface at a user-defined interval.
- Water flows freely through the wedgewire to an opening in the base and into the diversion pipe.
- The brushing action also keeps silt from accumulating around the screen base.
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This screen is installed on a vertical pump. The screen base and wet well are below pond bottom mud level.
The screen is totally submersed while the pump is in operation. |
Cone Screen Specifications
Cone Screen Specifications * |
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Allowable Flow Rates ** |
Model |
Unit Dimensions A - B - C |
Unit Weight |
Screen Surface Area |
Slot Velocity @ 0.5 ft/sec |
Approach Velocity @ 0.2 ft/sec |
Approach Velocity @ 0.33 ft/sec |
| SI C66-18 |
66” - 18” - 35° |
430 lbs. |
26.8 ft2 |
6.7 cfs (3,000 gpm) |
5.4 cfs (2,400 gpm) |
8.8 cfs 4,000 gpm |
| ISI C96-24 |
96” - 24” - 35° |
980 lbs. |
54.8 ft2 |
13.7 cfs (6,100 gpm) |
11.0 cfs (4,900 gpm) |
18.1 cfs 8,100 gpm |
| ISI C120-32 |
120” - 32” - 35° |
1,170 lbs. |
89.0 ft2 |
22.3 cfs (10,000 gpm) |
17.1 cfs (8,000 gpm) |
29.4 cfs 13,200 gpm |
| ISI C144-41 |
144” - 41” - 35° |
1,500 lbs. |
131.9 ft2 |
32.7 cfs (14,700 gpm) |
26.2 cfs 11,700 gpm |
43.2 cfs 19,400 gpm |
* Custom Units Available — Call for more information** 1) Allowable flow rates are based on using wedgewire screens with 50% open area.
Typical wire width is 0.068 inches (1.72mm);
2) If cone is not fully submerged, allowable flow rates will be reduced;
3) Maximum recommended slot velocity is 0.5 fps for most applications;
4) Many fisheries agencies use a maximum approach velocity criteria instead of slot velocity.
Approach Velocity is measured 3 inches from screen surface;
5) Regulatory design criteria varies and typically depends on fish protection needs. | |
