Common Applications for AMI FRP Membrane Housings
- Seawater Desalination Reverse Osmosis Systems
- Watermaker RO Systems
- Membrane Systems for operating pressures up to 1,200 PSI
Popular Membranes for Use with AMI 2.5" FRP Vessels (Not Included)
Note: Membrane max. pressures and operating conditions vary - refer to membrane specifications for data on specific models
Replacement Parts and Accessories for AMI SWRO Housings
Replacement Components
Model No. |
Description |
Qty. Needed Per Vessel |
PV-EP25A-1000E |
End Plug With O-Rings (Single) |
2 |
PV-RC25A-1000E |
Retaining Clips with Locking Screws (Set of 2) Complete set for one end.
|
2 |
PV-OR25A-1000E |
O-Rings Kit - Complete Set for one Housing Includes 2 Head Seals and 4 PWT Seals |
1 |
PV-MC25A-1000E |
Mounting Components Kit - Set for one housing. Includes 2 each straps, saddles, screws. |
1 |
PV-EX25A-1000E |
End Plug Extraction Tools Kit |
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 |
 |
H-C111DC-6GM |
Molykote Compound 111 - 6 Gram Pillow Pack Sold individually, or in boxes of 100 at bulk pricing |
High Pressure Feed/Brine Port Fittings (Not Included)
Model No.
|
Description
|
Qty. Needed Per Vessel
|
 |
8-4 FTX-SS
|
1/4" NPT x 1/2" Flare Fitting
|
2
|
8CM4316
|
1/4" NPT x 1/2" Tube Fitting
|
2
|
8-4 FTX-SS
|
8CM4316
|
Obsolete Product Support
Obsolete AMI Pressure Vessels Information - For Reference Only
The below products have been discontinued - there is limited stock available for some models, with availability limited to stock on hand. Contact Us for availability.
AMI 2.5" Seawater Pressure Vessels
Model No.
|
For Membranes (Dia. x Length)
|
Vessel Dimensions
|
Connection, FNPT
|
Outer Diameter (MAX)
|
Length
|
Feed
|
Brine
|
Prod
|
PV2514A1000E
|
2.5" x 14" (e.g. M-S2514A)
|
3.3" (8.3 cm)
|
17.5" (44.4 cm)
|
¼” FNPT
|
¼” FNPT
|
¼” FNPT
|
PV2521A1000E
|
2.5" x 21" (e.g. M-S2521A)
|
3.3" (8.3 cm)
|
24.5" (62.2 cm)
|
¼” FNPT
|
¼” FNPT
|
¼” FNPT
|
PV2540A1000E
|
2.5 " x 40" (e.g. M-S2540A)
|
3.3" (8.3 cm)
|
43.5" (110.5 cm)
|
¼” FNPT
|
¼” FNPT
|
¼” FNPT
|
- Maximum Operating Pressure: 1,200 PSI (68 BAR)
- Operating Temperature: 14°F-150°F
- Materials: FRP/Fiberglass Shell, Stainless Steel End Plugs, Locking Plates, and Screws

Model No.
|
For Membranes
|
Vessel Dimensions
|
Connection, FNPT
|
Dia.
|
Length
|
Dia.
|
Length
|
Feed
|
Brine
|
Prod
|
in
|
cm
|
in
|
cm
|
in
|
cm
|
in
|
cm
|
F2514-14141000C
|
2.5
|
6.4
|
14
|
35.6
|
3.2
|
8.2
|
17.5
|
44.4
|
¼” FNPT
|
¼” FNPT
|
¼” FNPT
|
F2521-14141000C
|
2.5
|
6.4
|
21
|
53.3
|
3.2
|
8.2
|
24.5
|
62.2
|
¼” FNPT
|
¼” FNPT
|
¼” FNPT
|
F2540-14141000C
|
2.5
|
6.4
|
40
|
101.6
|
3.2
|
8.2
|
43.5
|
110.5
|
¼” FNPT
|
¼” FNPT
|
¼” FNPT
|
Note: Fiberglass membrane pressure vessels sold complete with end plates and end closure hardware (detailed below). Feed/brine port fittings and mounting hardware are not included.
Spare Parts for Obsolete AMI Vessels
Model No.
|
Description
|
Qty. Per Vessel
|
 |
RP-20041*
|
End Plug for F2514-14141000C, F2521-14141000C, F2540-14141000C
|
2
|
RP-2009.1*
|
Locking Kit Segment for F2514-14141000C, F2521-14141000C, F2540-14141000C
|
2 sets
|
RP-2012*
|
Securing Ring for F2514-14141000C, F2521-14141000C, F2540-14141000C
|
2
|
RP-2010*
|
Screws for Securing Ring for F2514-14141000C, F2521-14141000C, F2540-14141000C
|
4
|
RP-56X3.55GGB/T*
|
O-ring for F2514-14141000C, F2521-14141000C, F2540-14141000C
|
2
|
RP-19X2.65GGB/T*
|
O-ring for F2514-14141000C, F2521-14141000C, F2540-14141000C
|
4
|
*Note: Items marked with (*) are included with pressure vessel assembly.