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Pressure Filtration > High-Rate Automatic Backwash Filtration Systems


High Rate Automatic Backwashing Sand Media Filters are designed for general-purpose water filtration. These permanent media automatic backwashing filters will remove organic and/or inorganic suspended solids down to 20 microns in size. Through the use of automatically controlled backwashing, the filter will operate “on line” for extended periods of time prior to the short backwashing cycle. Automatic filter operation is monitored on both elapsed time as well as pressure differential. When the controller “calls” for a backwash as a result of pressure differential or elapsed time, the backwashing function utilizes a portion of the clean filtered water produced by the system to clean the media. Single tank systems utilize unfiltered water for backwashing. Optional external backwash water sourcing systems are available for both single and multiple tank systems.


The standard single media sand filter utilizes a vertical side shell depth of 24”. Deep bed sand media filters featuring a 36” deep side shell are also available. Ecologix sand media filters feature fusion bonded epoxy linings, cast iron or brass automatic valves, solid state automatic controls and type 304 stainless steel underdrains. Standard systems are shipped assembled on structural steel skids for easy installation and start-up. Standard inlet and outlet connections are grooved but may be ordered flanged as an option. Media Filter Operation Diagram.PDF | Sand Media Filter Tank Loadings.PDF

Ecologix in-line sand media filters are ideally suited for use in water re-use applications, water pre-treatment applications for reverse osmosis and deionization systems, or as a pre-treatment prior to disposal bag or cartridge filters. Ecologix in-line sand media filters are also widely used as primary filters for removal of suspended solids in incoming plant water or in wastewater clean up applications.

Sand Media Filtration provides effective removal of suspended solids commonly found in many water sources. The Ecologix Sand Media Filter utilizes permanent filtration media and automatic backwashing for ease of operation and consistent water quality production capability.

Ecologix Single Media Filters are commonly used for pre-treatment of reverse osmosis or deionized water systems, pre-filtration for cartridge or bag filtration systems, filtration of industrial water for plant reuse and general filtration applications where removal of suspended solids down to 15 microns in size is desired.

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Removal of Suspended Solids Down to 20-50 Microns and Below

Model Normal GPM Peak GPM Media Cu.Ft. Total Filter
Backwash
Inlet/Outlet
Max. PSI Length Width Height
1824-1A 18-26 35 2.5 1.75 sq.ft. 26 gpm 2" 100 2' 10" 2' 0" 4' 6"
1824-2A 35-53 70 5.0 3.50 sq.ft. 26 gpm 2" 100 3' 5" 1' 10" 5' 0"
1824-3A 53-79 105 7.5 5.25 sq.ft. 26 gpm 2" 100 5' 3" 1' 10" 5' 0"
2424-1A 32-47 63 4.5 3.15 sq.ft. 47 gpm 2" 100 3' 1" 2' 5" 5' 0"
2424-2A 63-95 126 9.0 6.30 sq.ft. 47 gpm 2" 100 4' 5" 2' 4" 5' 6"
2424-3A 95-142 189 13.5 9.45 sq.ft. 47 gpm 2" 100 6' 9" 2' 4" 5' 6"
3024-1A 49-74 98 7.0 4.91 sq.ft. 74 gpm 3" 100 4' 8" 2' 10" 5' 6"
3024-2A 98-147 196 14.0 9.82 sq.ft. 74 gpm 2" 100 5' 5" 2' 9" 5' 8"
3024-3A 147-221 295 21.0 14.73 sq.ft. 74 gpm 2" 100 8' 3" 2' 9" 5' 8"
3624-1A 71-107 142 10.0 7.10 sq.ft. 107 gpm 3" 100 4' 8" 3' 3" 5' 10"
3624-2A 142-213 284 20.0 14.20 sq.ft. 107 gpm 4" 100 6' 5" 3' 3" 6' 3"
3624-3A 213-320 426 30.0 21.30 sq.ft. 107 gpm 4" 100 9' 9" 3' 3" 6' 3"
4824-1A 126-189 252 21.0 12.60 sq.ft. 189 gpm 4" 80 5' 7" 4' 3" 6' 10"
4824-2A 252-378 504 42.0 25.20 sq.ft. 189 gpm 4" 80 8' 5" 4' 3" 7' 2"
4824-3A 378-567 756 63.0 37.80 sq.ft. 189 gpm 4" 80 12' 9" 4' 3" 7' 2"
4824-4A 504-756 1008 84.0 50.40 sq.ft. 189 gpm 4" 80 17' 1" 4' 5" 7' 4"
4824-5A 630-945 1260 105.0 63.00 sq.ft. 189 gpm 4" 80 22' 2" 4' 3" 7' 2"
4824-6A 756-1134 1512 126.0 75.60 sq.ft. 189 gpm 4" 80 26' 6" 4' 3" 7' 2"
Standard Systems Include:
  • Filtered backwash on multi-tank systems
  • All interior surfaces fusion epoxy coated with Scotchkote 134
  • Advanced solid state automation with elapsed timer and differential pressure control
  • Skid mounted on structural steel skid
  • Liquid filled stainless steel pressure gauges
  • Flanged in/out standard (grooved - optional)
  • Automatic diaphragm operated non-corrosive brass or cast iron valves
  • Systems provided with interconnecting piping
  • Removable 304 stainless steel underdrain standard
  • ASME code stamped available
  • Filtration media is included in the system package
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