4" x 40" | PVDF Microfiltration Membrane Element | Polyvinylidene Fluoride

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AMI Membrane Elements Microfiltration MF Nanofiltration NF Reverse Osmosis RO
4" x 40"  Microfiltration Membrane (MF Membrane) | Polyvinylidene Fluoride (PVDF)

AMI polyvinylidine fluoride spiral wound microfiltration elements provide microfiltration with a nominal pore size of 0.2 micron, offer high flux at low operating pressures, and are ideal for oil and waste water applications.  AMI Microfiltration Membrane elements are among the finest in the industry.  Since 1983, AMI PVDF MF Membrane elements have earned the reputation of consistent quality.  

AMI 4x40 Microfiltration Membrane is the industry standard 4x40 size, for universal fit into most standard 4x40 membrane housing pressure vessels.

AMI MF 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



MF Membrane Specifications

AMI Part Number: M-M4040VDF
Membrane Size (Nominal): 4 x 40
Membrane Dimensions: 3.9"Dia. x 40"L
Membrane Type: Microfiltration (MF)
Polyvinylidine Fluoride (PVDF)
Pore Size:   0.2 Micron
For Housing: Standard 4" x 40"
Outer Wrap: Tape Wrapped
Element Type: Spiral Wound
Element Style:

Standard / Male 
(with "stinger")
3/4" Male PWT
Manufacturer: Applied Membranes, Inc.
Country of Manufacture: United States (USA)

AMI Membranes Product Specifications

Features of AMI Polyvinylidine Fluoride Microfiltration Membranes

  • Filtration to 0.2 Micron
  • Low Pressure Requirements For Reduced Operating Costs and Power Consumption
  • High Flux for High Flow Rates
  • Robust Materials and Construction for Long 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 technology and manufacturing processes
  • Standard dimensions to fit in commonly available housings


Applications for AMI PVDF MF Membranes


  • Wastewater pretreatment
  • Oil/Water Separations
  • Beverage polishing for effective clarification and bacteriostatic assurance
  • Surface water bacteria and oil remediation for safe human contact
  • Best choice for very low pressure, high flux applications


Physical Dimensions of M-M4040VDF:


Total Length (L):

40 In. (101.6 cm)

Membrane Length (I):

38 In. (96 cm)

Diameter (D):

3.9 In. (9.9 cm)

PWT (P):

0.75 In. (1.9 cm)


Replacement Compatibility for AMI  4 X 40 Microfiltration Membranes

Applied Membranes M-M4040VDF MF membrane elements fit industry-standard 4x40 membrane housing pressure vessels and can be used as direct replacement for many industry-standard 4x40 size Microfiltration PVDF elements with 3/4" male product water tubes ("stinger style").