Skip to content

4” End Clamp SS

AMI Stainless Steel Pressure Vessel Membrane Housings for RO Systems

AMI Stainless Steel Pressure Vessel Membrane Housings are designed for use in commercial reverse osmosis, nanofiltration, and ultrafiltration water treatment systems.  The seamless stainless steel body is sturdy and reliable, while giving a smooth, sleek look to the system.   The unique clamp-on end closures provide easier removal of the end caps for faster maintenance and membrane change-outs.

AMI 4" SS Membrane Housings are designed for direct connection to AMI/Applied Membranes and FilmTec/DOW style 4x40 elements. Lighter, safer, and more reliable than PVC membrane pressure vessels, our stainless steel membrane housings will not be affected by UV rays or sunlight, and are ideal for system pressures up to 300 PSI.

Benefits of SS Pressure Vessel Membrane Housings for RO, UF, NF, MF Systems

  • Reliable and economical pressure vessel
  • Designed for ease of installation and maintenance
  • Ideal for pressures up to 300 PSI
  • Available with 304 or 316 Stainless Steel Body, GFN End Plugs, Stainless Steel Clamps
  • AMI Products have earned an industry-wide reputation for their high quality and superior performance
  • 100% Quality Control Inspected in our ISO 9001:2015 certified facility in USA.

Quality Control Inspected ISO 9001:2015 Certified

316 Stainless Steel Pressure Vessel Membrane Housing Ordering Information

  • Maximum Operating Pressure: 300 PSI (20 Bar)
  • Materials: 316 Stainless Steel Body, GFN End Plugs, Stainless Steel Clamps, EPDM Seals
  • Vessels are sold complete with End Plugs, End Clamps, and O-Rings. Feed end product port plugs, mounting hardware, and membrane interconnectors are sold separately.

Model No.

 

For Membrane Size 
(Dia. × Length)

Qty. of Membranes per Vessel

Vessel Dimensions

 

Feed, Product & Brine Connections  (FNPT)

PV4040SSAW-316

4" × 40"
(10.2 cm × 101.6 cm)

1

4.0" × 43.5"
(10.2 cm × 110.5 cm)

½” Female Threaded

PV4080SSAW-316

4" × 40"
(10.2 cm × 101.6 cm)

2

4.0" × 85.0"
(10.2 cm × 215.9 cm)

½” Female Threaded


304 Stainless Steel Pressure Vessel Membrane Housing Ordering Information

  • Maximum Operating Pressure: 300 PSI (20 Bar)
  • Materials: 304 Stainless Steel Body, GFN End Plugs, Stainless Steel Clamps
  • Vessels are sold complete with End Plugs, End Clamps, and O-Rings. Feed end product port plugs, mounting hardware, and membrane interconnectors are sold separately.

Model No.

 

For Membrane Size 
(Dia. × Length)

Qty. of Membranes per Vessel

Vessel Dimensions

 

Feed, Product & Brine Connections  (FNPT)

PV4040SSAW-304

4" × 40"
(10.2 cm × 101.6 cm)

1

4.0" × 43.5"
(10.2 cm × 110.5 cm)

½” Female Threaded

Features of SS Pressure Vessel Membrane Housings for RO, UF, NF, MF Systems

  • 300 PSI (20 Bar) Maximum Operating Pressure
  • End Clamp Style End Plugs
  • End-Entry
  • 316 Stainless Steel Body, GFN End Plugs, Stainless Steel Clamps  (Available in 304SS)
  • For Direct Connection to AMI/Applied Membranes and DOW/FilmTec Style 4x40 Membranes
  • Easy to Install and Maintain

Stainless Steel Pressure Vessel Membrane Housings are used to house Reverse Osmosis (RO), Ultrafiltration (UF), Nanofiltration (NF), and Microfiltration (MF) membrane elements in water treatment systems for applications such as:

  • Restaurants
  • Aquariums
  • Whole House (Residential)
  • Office
  • Institutions
  • Hotels
  • Hospitals
  • Disaster Relief
  • Spot Free Rinse/Car Wash
  • Labs
  • Pharmaceutical
  • Humidification
  • Misting
  • Manufacturing
  • Rinse Water
  • Bottled Water
  • Water stores
  • Beverage
  • Food Processing
  • Ice Makers
  • Commercial Water Treatment
  • Ice Makers
  • Wide Variety of Other Applications

Spare Parts for SS Pressure Vessel Membrane Housings

Model No.

Description

Qty. per Vessel

 

PV-EPW40PD1212

End Plug with O-Rings,
½”Brine x ½” Product

2

Components for SS Pressure Vessel Membrane Housings

PV-EPW40PD3412

End Plug with O-Rings,
¾” Brine x ½” Product

2

PV-CL40W

End Clamp, single, with bolts & nuts

2

3850.005

Feed end product port plug, ½” MNPT (not included with vessel, sold separately)

1

PV-OR40-342

O-Ring for End Plug – External

4

PV-OR40-210

O-Ring for End Plug – Internal

2


O-Ring Lubricant for Membrane Housings (Not Included)

Molykote 111 compound is the recommended o-ring lubricant for use in water filters and water treatment systems including reverse osmosis membranes & pressure vessels, and filter housings.   The high gade silicone lubricant does not harm the membrane or downstream equipment typically used in reverse osmosis and water treatment systems.

Model No. Description Image
H-C111DC Molykote Compound 111 - 5 Ounce Tube Molykote 111 (DOW Corning 111) High Grade Silicon Lubricant for Water Filter Systems
H-C111DC-6GM Molykote Compound 111 - 6 Gram Pillow Pack
Sold individually, or in boxes of 100 at bulk pricing

Popular Membranes for Use with AMI 4" SS Pressure Vessels (Not Included)

Note:  Membrane max. pressures and operating conditions vary - refer to membrane specifications for data on specific models

Membrane Type  Model
Thin Film RO Membranes M-T4040A 
Low Energy RO Membranes M-T4040ALE 
Extra-Low Energy RO Membranes M-T4040AXLE 
FRP-Wrapped RO Membranes M-B4040A 
LE FRP RO Membranes M-B4040ALE 
XLE FRP RO Membranes M-B4040AXLE 
Heat-Sanitizable RO Membranes M-B4040HS 
NF5 Nanofiltration Membranes M-N4040A5 
NF9 Nanofiltration Membranes M-N4040A9  
Hollow Filber UF Membranes M-U4040HF09 
Polyacrylonitrile UF Membranes M-U4040PAN  
Polyethersulfone UF Membranes M-U4040PES 
Microfiltration Membranes M-M4040PS20