Process:
Yardney Sand Media Filters are designed to remove suspended solids from water efficiently and economically within 15-20 microns. The filter media removes suspended solids, and the clean water passes through the underdrain to the vessel outlet. Filtration mode continues until sufficient solids are collected to create a 10PSI (0.6 bar) pressure drop across the filter bed, triggering the filters to automatically backwash. During the backwash mode, the three-way valve changes flow direction, shutting off the inlet water to the backwashing filter. Clean filtered water from the remaining filters is then processed in the opposite flow direction creating the backwash condition. The water flows upward, lifting and expanding the media, to release the collected contaminants. The contaminants are then carried away with the backwash water. Minimum suggested operating pressure of the filter system is 30PSI (2 bar).
Product description:
Skid mounted high rate automatic backwashing sand media filter
(4 tanks (pods)) designed for general-purpose water filtration of
organic and inorganic solids (Yardney Model # IL5424-4AS3). Powered by
110 V external power supply, or battery with solar cell recharge for
remote operation.
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- FLOW RATE DESIGN: 504-756 GPM. BACKWASH RATE: 15 GPM/FT^2, 190 GPM.
- MAXIMUM OPERATING PRESSURE: 80 PSI.
- ELECTRICAL REQUIREMENTS: CONTROLLER 120V; SOLENOIDS 24VAC; FACTORY WIRED
- AIR SUPPLY REQUIRED: 2 CFM @ 70 PSIG (MINIMUM)
- MEDIA REQUIREMENT PER TANK: A.) 1/2″x3/4″ CRUSHED ROCK 7.0 CU. FT. B.) 0.47mm CRUSHED SILICA SAND 21.0 CU. FT.
- WEIGHT: (APPROX.): EQUIPMENT: 3,920 LBS (LESS MEDIA) MEDIA: 11,250 LBS OPERATION: 18,000 LBS
- EXTERIOR PAINT COLOR: STANDARD BLUE, RAL 5010.

