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Reverse Osmosis Systems - WRO-8H Series

Product Description

The Wattech 'WRO-8H' Series Reverse 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.


  • High rejection, 8" x 40" thin-film composite (TFC) membrane elements in a spiral-wound configuration.
  • FRP membrane housings with PVC end-cap material, stainless steel side-entry feed/reject ports, and white polyurethane finish. Designed for 300 psig 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-micron 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 hardness monitor.
  • Inlet feed-water Silt Density Index (SDI) test assembly.
  • Membrane flush cycle with RO product.
  • RO product diversion valve.
  • Touch-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.
  • Multi-media, 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.





The Wattech WRO-8H Series Industrial Reverse Osmosis Systems are engineered to economically produce high purity water by removal of dissolved minerals, bacteria, particles, and organic impurities. Each WRO machine is constructed using the highest quality components and materials for


reliable operation and exceptional performance. Our standard machines are available with product water outputs from5,600-68,000 LPH (112,000-1,360,000 LPD).


Wattech also offers a wide variety of machine options, pre/post treatment equipment, distribution pumps, and integrated controls for a complete water treatment system. Our specialty is skid mounted, pre-piped, and pre-wired equipment allowing for quick installation and start-up time. Other types of membrane technology are also available including two-pass, two-train, cellulose acetate (CA), and nanofiltration (NF) for custom applications. Wattech engineers are ready to work with you to design a system meeting your water treatment requirements.


The following are just a few of the industrial applications that benefit from the use of reverse osmosis water:


  Boiler Feedwater                 Small Municipalities


  Chemical Manufacturing       Electronics Manufacturing


  Humidification                      Ink / Dye Production


  Ice-making                          Food /Beverage Production


  Bottled Water                      Deionizer Pre-treatment













Address : Jl. Ambasador III Ponsok Ungu Sektor V Blok A 2 No.22 – 23 Bekasi 17612

Telp. ( 021 ) 88982788 , 88871689 Fax ( 021 ) 88875099

Website :  www.tsm.or.id , Email : obed@tsm.or.id











Operating Parameters


  Operating Pressure: 200-250 psig


  Nominal Recovery: 75–80%


  Nominal Salt Rejection: 98–99%


  Operating Temperature: 45–85° F


  Design Temperature: 50° F


  Minimum Inlet Pressure: 30 psig


  Control Circuit: 120 VAC, 1-phase, 60 Hz.


Materials of Construction


  Skid Frame: Epoxy-coated carbon steel


  Membrane Elements: Thin-film Composite (TFC)


  Membrane Housings: FRP (300 psig rated)


  Low pressure piping: Sch 80 PVC


  High pressure piping: Sch 10 304SS


Pump and Motor


  Pump: 304/316SS vertical multi-stage centrifugal


  Motor: TEFC, 460 VAC, 3-phase, 60 Hz.


Standard Features


  8” x 40” High rejection membrane elements


  5-micron sediment pre-filter housing (304SS)


   Allen Bradley MicroLogix 1200 PLC System with PanelView 600 operator interface

  Prewired motor starter with fused disconnect switch


  NEMA-4 electrical enclosures


  UL-508A Listed electrical panels


  Product water conductivity transmitters


  Product and reject flow transmitters


  316SS pressure gauges / Inlet pressure switch


Optional Equipment Available


  Variable Frequency Drives (VFD)


  PH/ORP monitors


  Low energy membrane elements


  All stainless steel piping and/or skid


  Ethernet/Modbus PLC communications


  Atmospheric storage tanks with level control and repressurization pump systems


  Membrane clean-in-place (CIP) systems


   Pretreatment chemical injection systems