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3036 Forest Park Drive
Randleman, NC, 27317
United States


Marlo MRO-8H Series

MRO MRO-8H Series

Marlo Industrial RO Applications - MRO-8H Series

The Marlo 'MRO-8H' Series Revers Osmosis system is designed for industrial applications requiring high purity water (98-99% salt rejection).

Nominal output capacities of 36,000-432,000 GPD (25-300 GPM).

Flexible design allowing for easy customization to meet tight engineering specifications.


Features & Benefits

  • High rejection, 8" x 40" thin-film composite (TFC) membrane elements in spiral-wound configuration.
  • FRP membrane housings with PVC end cap material, stainless steel side entry fee/reject ports, and white polyurethane finishes.  Designed for 300 pig pressure rating.
  • Stainless steel multi stage feed pump with TEFC motor (230/460V, 3-Phase).
  • Epoxy coated carbon steel skid/frame assembly.
  • Stainless steel pre-filter housing with 5.0 moron cartridges.
  • NEMA-4 programmable logic controller (PLC) package complete with operator lights and switches for optimal system control.  Includes pre-wired motor starter, low inlet and high pump discharge pressure switches with alarms, and pre-treatment interlock.
  • Product water conductivity monitor with digital display and adjustable alarm.
  • Panel mounted product, reject, and recycle flowmeters with digital display.
  • Panel mounted stainless steel system pressure gauges and sampling valves.
  • In-line system temperature indicator.
  • PVC low pressure piping/valves and 304 stainless steel high pressure piping and valves.
  • Automatic system inlet feed valve.
  • Automatic membrane flush cycle (at programmed timed intervals).


Optional equipment

  • All 304/316 stainless steel process piping and valves (low and high pressure lines).
  • Premium efficient feed pump motors.
  • Inlet feed water pH monitor/controller.
  • Inlet feed water ORP monitor/controller.
  • Inlet feed water harness monitor.
  • Inlet feed water Silt Density Index (SDI) test assembly.
  • Membrane flush cycle with RO product.
  • RO product diversion valve.
  • Tech screen operator interface terminals in lieu of lights and switches.
  • Skid mounted membrane Clean-in-Place systems.
  • RO system performance evaluation software packages. 
  • Product water storage tanks and re-pressurization pump systems. 
  • Multimedia, activated carbon, and water softener pre-treatment systems.
  • Inlet feed water chemical injection systems for pH adjust, dechlorination, and anti-scalant.
  • Separate bed, mixed bed, and electro-deionization post treatment systems.