AMI 2.5” End Port FRP
1200 PSI End Port Seawater Membrane Housing Pressure Vessels
AMI fiberglass membrane housings are rated at 1,200 psi and specially designed for seawater reverse osmosis membranes used in marine applications. Commonly used in watermakers, AMI FRP seawater pressure vessels are suitable for seawater desalination in shipboard applications, watermakers, land-based desalinators and sea-based desalinators.
AMI FRP seawater RO membrane housing end caps are designed for direct connection to Industry Standard Style 2.5" diameter male style elements (such as Applied Membranes, Inc. AMI Membranes, and FilmTec style membranes).
AMI 2.5″ Seawater Pressure Vessels
| Model No. | For Membranes (Dia. x Length) |
Vessel Dimensions | Connection, FNPT | |||
| Outer Diameter (MAX) | Length | Feed | Brine | Prod | ||
| PV2514A1200E | 2.5″ x 14″ (e.g. M-S2514A) |
3.3″ (8.38 cm) |
17.5″ (44.4 cm) |
¼” FNPT | ¼” FNPT | ¼” FNPT |
| PV2521A1200E | 2.5″ x 21″ (e.g. M-S2521A) |
3.8″ (8.38 cm) |
25″ (62.2 cm) |
¼” FNPT | ¼” FNPT | ¼” FNPT |
| PV2540A1200E | 2.5 ” x 40″ (e.g. M-S2540A) |
3.8″ (8.38 cm) |
44″ (110.5 cm) |
¼” FNPT | ¼” FNPT | ¼” FNPT |
- Maximum Operating Pressure: 1,200 PSI (82.73 BAR)
- Operating Temperature: 14°F-150°F
- Materials: FRP/Fiberglass Shell, Stainless Steel End Plugs, Locking Plates, and Screws
Benefits of AMI Seawater RO Membrane Housings
- Strong coated FRP/fiberglass for extended life under corrosive conditions
- Suitable for seawater conditions
- Direct connect to industry-standard 2.5″ diameter seawater membrane elements
- Designed for ease of installation and maintenance
- Ideal for operating pressures up to 1,200 PSI
- AMI Products have earned an industry-wide reputation for their high quality and superior performance
- Large inventory available for immediate shipment
AMI Seawater RO Pressure Vessel Features
- 1200 PSI Maximum Pressure
- End-Entry/ End-Port Design
- Materials: Strong coated FRP/fiberglass and feature machined, duplex end caps for extended life under corrosive conditions.
- Available for industry-standard 2.5″ diameter membrane elements in 14”, 21” and 40” lengths
- For Direct Connection to AMI / FilmTec style membranes
- Easy to install and maintain
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
| Membrane Type | PV2514A1200E (2.5″ x 14″) | PV2521A1200E (2.5″ x 21″) | PV2540A1200E (2.5″ x 40″) |
| Seawater RO Membranes | M-S2514A | M-S2521A | M-S2540A |
| Thin Film RO Membranes | M-T2514A | M-T2521A | M-T2540A |
| Low Energy RO Membranes | M-T2514ALE | M-T2521ALE | M-T2540ALE |
| Extra-Low Energy RO Membranes | M-T2514AXLE | M-T2521AXLE | M-T2540AXLE |
| FRP-Wrapped RO Membranes | M-B2514A | M-B2521A | M-B2540A |
| LE FRP RO Membranes | M-B2514ALE | M-B2521ALE | M-B2540ALE |
| XLE FRP RO Membranes | M-B2514AXLE | M-B2521AXLE | M-B2540AXLE |
| Heat-Sanitizable RO Membranes | M-B2514HS | M-B2521HS | M-B2540HS |
| NF5 Nanofiltration Membranes | M-N2514A5 | M-N2521A5 | M-N2540A5 |
| NF9 Nanofiltration Membranes | M-N2514A9 | M-N2521A9 | M-N2540A9 |
| Hollow Filber UF Membranes | M-U2514HF09 | M-U2521HF09 | M-U2540HF09 |
| Polyacrylonitrile UF Membranes | M-U2514PAN | M-U2521PAN | M-U2540PAN |
| Polyethersulfone UF Membranes | M-U2514PES | M-U2521PES | M-U2540PES |
| Microfiltration Membranes | M-M2514PS20 | M-M2521PS20 | M-M2540PS20 |
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.
Documentation and Literature for AMI FRP Membrane Housings
Drawing & Specifications for AMI 2.5" Dia. Fiberglass Membrane Housings
Spec Sheet – 1200 PSI End Port
User Instructions for AMI 2.5" Dia. Fiberglass Membrane Housings
Membrane Housings Pressure Vessels Catalog