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.
Sand Media Filtration provides effective removal of suspended solids commonly found in many water sources. The Sand Media Filter utilizes permanent filtration media and automatic backwashing for ease of operation and consistent water quality production capability.
Single Media Filters are commonly used for pre-treatment of reverse osmosis or de-ionized 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.