4" x 40" Ultrafiltration Membrane | Flush Cut Desal Style | FRP Wrapped | Polyethersulfone (PES) UF | 10,000 MWCO

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Applied Membranes Inc. Membrane Elements Water Treatment RO UF NF
4" x 40"  Ultrafiltration Membrane (UF Membrane) |  Polyethersulfone PES Membrane Elements
"Flush Cut" (Female Ends) | Fiberglass Wrapped

Applied Membranes polyethersulfone (PES) spiral wound ultrafiltration (UF) membrane elements provide removal of fine particles from aqueous solutions to a molecular weight cut-off (MWCO) of 10,000.

AMI UF Membranes are Made in the USA in their ISO 9001:2015 Certified Facility and are 100% Quality and Performance Tested.

Genuine AMI Membranes ISO USA Quality

Features of Applied Membranes Ultrafiltration PES Membranes:

  • Tolerant to Many Solvents and Oils
  • Absolute Bacteria and Virus Removal
  • Filtration to 10,000 Molecular Weight Cut-Off
  • Low Pressure Requirements For Reduced Operating Costs and Power Consumption
  • High Flux for High Flow Rates
  • Robust Materials and Construction for Long Life
  • Durable with good cleanability for long element life
  • Made in the USA
  • Manufactured in our ISO 9001:2015 Certified Facilities
  • 100% Performance and Quality Tested
  • Backed by our Experienced Technical Support Staff
  • High Quality for Consistent and Reliable Performance
  • Uses the most advanced membrane film technology and manufacturing processes



M-U4040PESD Specifications

AMI Part Number: M-U4040PESD
Membrane Size (Nominal): 4x40
Membrane Dimensions: 3.9"Dia. x 40"L
Molecular Weight Cut-Off (MWCO) 10,000
For Housing: Standard 4" x 40"
Outer Wrap: FRP Wrapped
Membrane Type: Polyethersulfone (PES) Ultrafiltration
Element Type: Spiral Wound
Maximum Operating Pressure: 150 psig (10 bar) @ 77°F (25°C)
Maximum Feed Flow: 20 gpm
Maximum Operating Temperature: 140°F (60°C) at 100 psi
Feed water pH Range: 2-11 (continuous)
Cleaning pH Range: 1-13 (30 minutes)
End Style: Female PWT (Flush Cut Style)
Manufacturer: Applied Membranes, Inc.
Country of Manufacture: United States (USA)

AMI Membranes Product Specifications

Applications for Polyethersulfone Ultrafiltration Membrane Elements:

  • Absolute bacteria and virus removal from surface waters, beverage and liquid food processing and by product streams
  • Applications requiring tolerance to solvents
  • Treatment of oil, food, and pharmaceutical streams that require resistance to many esters and aromatics
  • Recovery of proteins, gelatin, enzymes, whey protein

Reverse Osmosis Membrane Dimensions

Physical Dimensions of M-U4040PESD:


Total Length (A):

40 In. (1016 mm)

Diameter (B):

3.9 In. (99 mm)


0.625 In. (15.9 mm)


Replacement Compatibility for AMI  4 X 40 Flush-Cut UF Membranes

Applied Membranes M-U4040PESD membrane elements are flush-cut (Desal Osmonics style) with female product water tube ends, and are designed to be used as direct replacement for 4x40 size spiral wound polyethersulfone ultrafiltration elements with 0.625" ID female PWT.