Electric H2O, Inc.
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Electric H2OFactory Direct Closed Loop Filters

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The Electric H2O Closed Loop Filtration System (CL Filter) is a high-pressure media filter, constructed from epoxy-lined carbon steel and designed to remove suspended solids down to 10, 5 and 0.5 microns from closed loop heating and cooling systems. The system is designed to maximize filtration flow and minimize backwash time and volume. As the filtered particulates accumulate on the media bed, the pressure differential across the bed increases. When a pre-determined set point is reached, the self-cleaning automatic citywater backwash cycle is initiated, after which filtration is resumed. The NEMA 4X control panel also incorporates a manual and timed override automatic backwash. Dual electric actuators and four two-way bronze ball valves prevent any closed loop system water loss during backwash.

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Improve…

  • Heat Transfer Efficiency
  • Pump Operation
  • Evaporator Tube Cleanliness
  • Corrosion Rate
  • Biological Contro

Closed Loop Filter Sizing and Selection

Closed loop systems are not exposed to airborne contaminants and therefore have lower particulate concentrations than open systems. Filter sizing is based upon a fluid turnover rate of four times per day. The result is that the entire fluid volume in the system is filtered every six hours.

Filter Sizing

  • Total System Circulation Rate x 2% = Filter Flow Rate

OR

  • Total Water Volume / 360 = Filter Flow Rate