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WECO UF844-IXPT Polymeric Ultrafiltration Backwashing Water Filtration System

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  • Utilizes Patented Outside/In Enpress Polymeric Membrane Filtration Module that is NSF 61, EPA, ACS and CDHS certified. BioVir certified and tested module for log reduction of Bacteria and Virus.
  • Four bundles of 0.02 micron filtration membranes.
  • High performance flow rates, up to 12 gpm.
  • Standard 2.5” top inlet opening for connection with standard backwashable control valves to in/out heads, for metered service.
  • Standard bottom drain and opening for drainage and cleaning purposes of the system.
  • No special controller or programming needed.
  • Economical POE packaging that looks like standard water treatment equip-ment.
  • Low waste water discharge used when cleaning.
  • Designed for cyst reduction, turbidity, and fine sediment filtration applications.
  • Influent water must meet these requirements. Please contact WECO for pre-treating water. Pilot testing with UF-PLT-STK advised.

    Influent Parameters:
    Pre-Filtration <5 Microns, 1 PPM Chlorine,0.3 PPM Iron, .05 PPM Manganese, Plus Others See Specs

WECO Polymeric Ultrafiltration Backwashing Water Filtration System

WECO UF844-IXPT Polymeric Ultrafiltration Backwashing Water Filter is a final stage polishing filter utilizing an Enpress patented polysulfone-based Outside/In Ultrafiltration Membrane. The ultrafiltration system is designed for turbidity, cyst reduction and fine sediment filtration applications, and the Enpress ultrafiltration module is NSF 61 certified. The membrane operates with flow from the outside-to-inside, with benefits of minimized risk of deep clogging, simple cleaning of the membrane surface with water and/or air, and a high area volume ratio that allows for a compact design. The membrane is non-biodegradable, and has superior mechanical and chemical resistance. The ENPRESS Polymeric Ultrafiltration Vessel System provides point-of-entry (POE) filtration, for safe and clean water at every faucet.

Operational Parameters

Design Parameters

  • Operation Pressure: 10 to 100 psi
  • Operating Temperature: 35 to 100 degrees F
  • Continuous Flow Rate: 10 GPM
  • The system provides a treated flow of up to 12 gpm at 25 C and 60 psi.

Backwash Requirements

  • Automatic backflush performed every midnight for 5 minutes @ 7.2 GPM
  • Drain flush once a week 2 minutes @ 5GPM (simply open bottom drain valve)


  • Iron and Manganese: Reduce iron to <0.3ppm and manganese to <0.05 ppm
  • Sediment: 5 microns or less
  • Silt Density Index: Less than 6.0
  • pH: 3 to 11
  • Chlorine: 1.0 ppm maximum for continuous flow (up to 2000 ppm for cleaning only)
  • Pressure Decay Test (PDT) is required upon installation

Contaminant Reduction

  • Treats colloids, bacteria, cysts, viruses, turbidity, tannins, and other particles down to 0.02 microns in size.
Ultrafiltration System


Model Maximum Service Flow (gpm) Vessel Dimensions (inches) Minimum Backwash Rate (gpm)
UF844-IXPT 12 8(W) x 8(D)x 54(H) 7.2

Professional Plumbing Support recommended for Installation

Water pressure can cause leaks and damage the surrounding building or fixture if not properly installed. User must check all fittings for tightness. WECO assumes no responsibility for water damage due to leaks.

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