Reverse Osmosis System

Reverse Osmosis System

Reverse Osmosis System

WesTech provides nanofiltration and reverse osmosis (NF and RO) membrane filtration equipment designed to meet your unique project requirements. Whether your treatment objective is for softening or to reduce dissolved solids, organics, or other target contaminants, WesTech has a solution. Customers have found reliable solutions with WesTech for over 40 years. By partnering with WesTech to achieve a state-of-the-art nanofiltration or reverse osmosis system, you can count on a strong commitment to service, complete process knowledge, and expert experience.

Reverse Osmosis System Rendering

WesTech Complete Process Treatment System

Customers benefit from consolidated process solutions as WesTech integrates our RO systems with other pre- or post-treatment equipment. With WesTech’s treatment knowledge, you receive process support and equipment from the source water through the final treatment step. Our advanced control systems allow seamless operation of multiple trains and spare I/O simplifies integration with existing facilities.

Ultrafiltration Flow Diagram


  • Reverse Osmosis or Nanofiltration Elements
  • 1 – 5 micron Cartridge Pre-Filters
  • Booster Pumps
  • Welded and Painted Steel Skid Frame
  • Sch 80 PVC Low-Pressure Piping
  • 316 SS High-Pressure Piping
  • FRP Element Housings
  • Pneumatically Actuated Valves
  • Clean-in-Place System
  • Chemical Metering Pumps
  • Permeate and Concentrate Flowmeters
  • Conductivity Sensors
  • Pressure Gauges and Transmitters
  • Allen Bradley® PLC Controls
  • Process Tanks


  • Pre-assembled and tested skids for ease of installation
  • Reduced footprint by using compact system design
  • Long membrane life due to durable spiral-wound elements
  • Highly automated for ease of operation
  • Custom and standard options available
  • Complete process offering including pre- and post-treatment equipment


  • Municipal drinking water
  • Industrial process water
  • Mine water remediation
  • Wastewater reuse
  • Deionization pretreatment
  • Targeted contaminant removal
  • Desalination
  • Potable water
  • Boiler feed water
  • Rinse water
  • Metal plating and finishing
  • Bottled water
  • Food ingredient water
  • Electronics manufacturing
  • Food and beverage production