4" x 40" Membrane Housing | 316SS | 300 psi | U-Pin Style | 1/2" Ports | Stainless Steel Pressure Vessel

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PVC Membrane Housing Pressure Vessels for RO Systems
4x40 Stainless Steel Membrane Housing Pressure Vessel for RO, NF, UF, MF Membranes

Applied Membranes 316 SS pressure vessels for housing 4040 membrane elements offer high operating pressure which allow you to take full advantage of the membrane capability. Stainless steel membrane pressure vessels are considered safer and more reliable than PVC membrane pressure vessels.

AMI 4-inch x 40-inch membrane housings are designed for direct connection to industry-standard 4x40 membrane elements with 3/4" male product water tubes (stinger style) used by most popular brands including Applied Membranes, FilmTec Membranes, Hydranautics Membranes, and LG Chem RO Membranes. The U-Pin style end closures are designed for ease of installing and replacing membrane elements, with standard ½" FNPT threaded connections: no special fittings required. Each membrane housing is individually inspected for quality assurance.

Each membrane housing is sold complete with End Plugs, U-Pins, Feed Plug, and O-Rings. Mounting Equipment is sold separately.

Applied Membranes Stainless Steel Membrane Housing Benefits

  • 300 PSI Maximum Operating Pressure: Allows you to take full advantage of the membrane capability.
  • Versatile: Exceptional Performance in Commercial Reverse Osmosis RO Systems, Nanofiltration NF Systems, Microfiltration MF, and Ultrafiltration UF Membrane Water Treatment Applications.
  • Standard Size: Fits Industry-Standard 4” x40” Membrane Elements including Applied Membranes, FilmTec, Hydranautics, and any standard 4x40 membrane with 3/4" male PWT.
  • Strong & Reliable: 316 Stainless Steel Shell with PVC End Caps, Stainless Steel U-Pins, and EPDM seals.
  • Complete Assembly: Each vessel is supplied with the stainless steel vessel shell, two end plugs, u-pins, and O-rings.

SS Membrane Housing Specifications

AMI Part Number: PV4040SSAU-316
For Membrane Size: 4" x 40"
For Membrane Type: Industry-Standard with male PWT (Stinger Style) RO, UF, MF, and NF Elements
Operating Pressure: 300 PSI (20 Bar) Maximum
Vessel Dimensions: 4" Dia. x 45" Length
(10.2 cm Dia. x 114.3 cm Length)
Connections: ½" FNPT Feed, Brine, and Product
Configuration: End Entry
End Closures: U-Pin
Materials: 316 Stainless Steel Body, PVC End Plugs, SS U-Pins




Replacement Components for 4x40 Stainless Steel Membrane Housings

Catalog Product Link End Plug with ½" Brine x ½" Product Ports, with O-Rings
Catalog Product Link U-Pin 
Catalog Product Link O-Ring for End Plug - External
Catalog Product Link O-Ring for End Plug - Internal
Catalog Product Link ½"Plug for Permeate Port on Feed End
Catalog Product Link Lubricant for O-Rings,
DOW Corning 111, 5 Oz