Ultrafiltration Membrane System

Membrane filtration system

Ultrafiltration Membrane System:

WesTech low-pressure membrane filtration (ultrafiltration/microfiltration) systems use hollow fiber membranes with small pore sizes (0.01-0.1 µm) to reliably produce high quality water using an absolute barrier. WesTech UF/MF systems meet requirements for 4-log removal of Cryptosporidium and Giardia and Title 22 certifications, reduce turbidity below 0.1 NTU, and surpass SDI guidelines for pretreatment to NF/RO. WesTech systems are highly automated, intuitive, and efficiently designed.

WesTech is a leader in membrane systems with over 10 years of experience and more than 50 installations. Our engineering expertise, process knowledge, and service-oriented approach enable us to provide customized and innovative solutions to meet the treatment goals of any project, big or small, for a variety of applications.

The WesTech Ultrafiltration Membrane System is a modular, skid-mounted ultrafiltration series ideal for applications ranging from 0.5 - 40 MGD. For smaller applications, find out about our AltaPac™ system.

The WesTech Advantage:

  • Over 50 installations with over 10 years’ experience in membrane systems
  • Complete equipment solutions from pretreatment to post treatment
  • Customizable and pre-engineered systems for small and large flow rates
  • Flexible module racks for compatibility with various module configurations
  • More clarifiers as pretreatment to membranes than any other manufacturer

Membrane system skid rendering


  • Complete Treatment Systems with Ancillary Components
  • Durable NSF 61 / CDPH Certified Membranes
  • ISO 9001 Certified Company
  • UL 508A Control Panels
  • NEMA 4/4x Electrical Enclosures

Optional Features

  • Service and Maintenance Plans
  • Chemical Neutralization System
  • Extended Warranties


  • Skid-mounted for ease of installation
  • Automated for ease of operation
  • Compact footprint
  • Meet redundancy requirements
  • Modular and expandable design
  • Reduced chemical and energy consumption
  • Reduced backwash volumes
  • Reduced reverse osmosis operating cost


  • Municipal Drinking Water (compliance with US EPA LT2ESWTR)
  • Tertiary Wastewater Filtration
  • Industrial Process Water
  • Pretreatment to Nanofiltration/Reverse Osmosis


  • Surface area: 775 ft2 / 72 m2 per module
  • Housing material: PVC
  • Length: 7.09 ft
  • Diameter: 8.5 inches
  • Raw water temperature: 104F
  • Raw water pH: 1-10
  • Max pressure in filtration: 43.5 psi
  • Typical flow capacity per module: 10-45 gpm
  • Dead-end outside-in filtration