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3000 GPD/ 11,350 LPD Seawater Reverse Osmosis Desalination System

-- Converts Seawater to potable grade water.
-- Can run with solar/wind power generator


  • boats
  • beach houses
  • beach side restaurants
  • emergency preparedness
  • hydroponics
  • etc..

Technical Specifications

  • Daily production rate: 3000 GPD/ 11,350 LPD
  • Feed water: less than 36,000 ppm
  • Required feed water pressure: 40 psi
  • Average feed water temperature: 25 °C/ 77 °F
  • Product water quality: less than 500 ppm
  • Feed water rate: 8.2 GPM
  • Working Pressure: up to 900 psi
  • Dimension (L x W x H): 140 x 91 x 140 (cm)/ 55 x 36 x 55 (in)
  • Weight: 450 lb/ 204.5 kg
  • Pre-Filtration System: PVC housing, 5-micron cartridge type sediment filter further reduces suspended solids in the feed water stream to RO system. It protects the RO high-pressure pump and lead end RO membrane elements from debris. 20 GPM rating. 1 No.
  • Membrane Housing: fiberglass, 4" housing, holds 1 membrane, 1000 psi rated pressure vessel, 3 No.
  • Membranes: Dow Filmtec or equivalent , 3 No. 4"x40"
  • High pressure RO Pump: Super Duplex Stainless Steel.
  • Motor (60hz/230 Volts): Danfoss 7.5 HP, 3 Phase, TEFC, or (50Hz/220V/400V): Danfoss 7.5 HP, 3 Phase, TEFC. (please specify at order placement)
  • High pressure side piping material: 316 Stainless Steel
  • Low pressure side piping material: Schedule 80 PVC
  • Concentrate control valve: 316 Stainless Steel
  • Water quality monitor: product water TDS meter
  • Flow meters: Panel Mount Flow Meters for feed water and product water.
  • Pressure Gauges: Feed Water Pressure, working pressure, Concentrate
  • System controls (automatic operation):PLC control to provide start/stop, sequential, and alarm control.

RO System start permissible conditions:
  1. Power On
  2. Start button pushed
  3. Low pressure switch closed
  4. Permeate water tank level below low level (low and high level switches are on open position)

Five conditions will cause the RO to shut down the machine:
  1. High working pressure,
  2. Low inlet pressure (<20 psi)
  3. over current
  4. Product water storage tank level high
  5. Shut-down button pushed.