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Pressure Filtration > High-Rate Sand Media Filtration Systems

High Rate Automatic Backwashing deep bed sand media filters are designed for stringent general purpose water filtration. These permanent media automatic backwashing filters will remove organic and/or inorganic suspended solids down to 15 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.


Ecologix high rate automatic backwashing deep bed sand media filters are designed for stringent general purpose water filtration. These permanent media automatic backwashing filters will remove organic and/or inorganic suspended solids down to 15 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.
Media Filter Operation Diagram.PDF | Sand Media Filter Tank Loadings.PDF
media filter image

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The deep bed single-media sand filter utilizes a vertical side shell depth of 36". Sand media filters featuring a 24" side shell are also available. Ecologix industrial 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 flanged but may be ordered grooved as an option.

Ecologix in-line sand media filters are ideally suited for use in water re-use applications, water pre-treatment applications (for reverse osmosis and de-ionization systems, etc.) or as a pre-treatment system prior to bag or cartridge filters. In-line sand media filters are also widely used as primary filters for removal of suspended solids in incoming plant water and waste water clean up applications. (They are also used as the Tertiary Filters on our Bio-Clear Systems.)

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 W L H
1836-1A 18-26 35 4.5 3.15 sq.ft. 47 gpm 2" 100 3'1" 2'4" 8'0"
1836-2A 35-53 70 9.0 6.30 sq.ft. 47 gpm 3" 100 4'5" 2'4" 8'6"
1836-3A 53-79 105 13.5 9.45 sq.ft. 47 gpm 3" 100 6'9" 2'4" 8'6"
2436-1A 32-47 63 7.5 4.91 sq.ft. 74 gpm 3" 100 4'8" 2'9" 8'6"
2436-2A 63-95 126 15.0 9.82 sq.ft. 74 gpm 4" 100 5'5" 2'9" 8'8"
2436-3A 95-142 189 22.5 14.73 sq.ft. 74 gpm 4" 100 8'3" 2'9" 8'8"
3036-1A 49-74 98 12.0 7.10 sq.ft. 107 gpm 3" 100 4'8" 3'3" 8'10"
3036-2A 98-147 196 24.0 14.20 sq.ft. 107 gpm 4" 100 6'5" 3'3" 9'3"
3036-3A 147-221 295 36.0 21.30 sq.ft. 107 gpm 4" 100 9'9" 3'3" 9'3"
3636-1A 71-107 142 17.0 12.60 sq.ft. 189 gpm 4" 80 5'7" 4'3" 9'10"
3636-2A 142-213 284 34.0 25.20 sq.ft. 189 gpm 6" 80 8'5" 4'3" 10'2"
3636-3A 213-320 426 51.0 37.80 sq.ft. 189 gpm 6" 80 12'9" 4'3" 10'2"
4836-1A 126-189 252 33.5 15.91 sq.ft. 239 gpm 4" 80 5'10" 4'9" 10'4"
4836-2A 252-378 504 67.0 31.82 sq.ft. 239 gpm 6" 80 9'4" 4'9" 10'8"
4836-3A 378-567 756 100.5 47.73 sq.ft. 239 gpm 6" 80 14'2" 4'9" 10'8"
4836-4A 504-756 1008 134.0 63.64 sq.ft. 239 gpm 8" 80 19'9" 4'9" 10'10"
4836-5A 630-945 1260 167.5 79.55 sq.ft. 239 gpm 10" 80 24'7" 4'9" 10'8"
4836-6A 756-1134 1512 201.0 95.46 sq.ft. 239 gpm 10" 80 29'5" 4'9" 10'8"
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 diaphram operated non-corrosive brass or cast iron valves
  • Systems provided with interconnecting piping
  • Removeable 304 stainless steel underdrain standard
  • ASME code stamped available
  • Filtration media is included in the system package