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PROTEC™ Membrane Housing Pressure Vessels
4" Side Port Fiberglass Membrane Housing Pressure Vessels
Description
PROTEC pressure vessels are constructed of corrosion resistant filament wound fiberglass reinforced epoxy tubing and are designed for continuous use as housing for membrane filtration elements to purify typical brackish waters.
This style of fiberglass membrane housing is designed for direct connection to AMI and FilmTec/DOW male style elements and is supplied with the element interface hardware for this style.
Side ported vessels with feed and concentrate connections located in the side wall of the vessel shell. 4" Diameter Side Port Pressure Vessels are available to house from one to six 40" elements. Available operating pressures are 300 and 450 PSI.
PROTEC Vessels have been designed to meet the standards of the American Society of Mechanical Engineers (ASME), Boiler and Pressure Vessel Code, Section X. At an additional cost, vessels can be inspected during fabrication by an ASME Authorized Inspector and Code stamped.

Materials
Shell: Filament Would, Epoxy FRP
End Plugs/Sealing Plates: PVC Thermoplastic
Retaining Rings: Stainless Steel
Hardware Components
Pressure vessels include shell, end enclosure hardware and seals. Mounting straps and components are sold separately.
Note: AMI Brand 4" FRP Membrane Housings have been discontinued.
Click Here for information on replacements and spare parts.
Click the pressure rating you wish to view, or just scroll down. [300 PSI] [450 PSI]
The PROTEC™ Model PRO-4-300-SP is designed for continuous use as housing for membrane filtration elements to purify typical brackish waters at any positive pressure up to 300 PSI. The Model PRO-4-300-SPhas been designed to meet the standards of the American Society of Mechanical Engineers (ASME), Boiler and Pressure Vessel Code, Section X.
| Model No. |
No. of 4"x40" Membranes per Vessel |
Vessel Diameter
In. (cm.) |
Vessel Length
In (cm.) |
Connection, FNPT, Inches |
En |
| Feed |
Brine |
Product |
Engineering Drawings
|
| PRO-4-300-SP-1 |
1 |
4.9 (12.4) |
49.5 (125.7) |
1" |
1" |
½ " |
 |
| PRO-4-300-SP-2 |
2 |
4.9 (12.4) |
89.5 (227.3) |
1" |
1" |
½ " |
| PRO-4-300-SP-3 |
3 |
4.9 (12.4) |
129.5 (328.9) |
1" |
1" |
½ " |
| PRO-4-300-SP-4 |
4 |
4.9 (12.4) |
169.5 (430.5) |
1" |
1" |
½ " |
| PRO-4-300-SP-5 |
5 |
4.9 (12.4) |
209.5 (532.1) |
1" |
1" |
½ " |
| PRO-4-300-SP-6 |
6 |
4.9 (12.4) |
249.5 (633.7) |
1" |
1" |
½ " |
Specifications
- Design Pressure: 300 PSI
- Minimum Operating Temperature: 20°F
- Maximum Operating Temperature: 120°F
- Factory Test Pressure: 330 PSI
- Burst Pressure 1800 PSI
- Feed TDS: 10,000 ppm Max
- Operating pH Range: 3-11
- Cleaning pH Range (Less than 30 minutes): 2-12
- Application: Typical Brackish Water
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Spare Parts
| Model Number |
Description |
Qty Per Vessel |
Material |
| 4040026 |
Bearing Plate, Each |
2 |
6061-T6 Aluminum, SB-221 |
| 4040030-1 |
Sealing Plate, Each |
2 |
PVC Thermoplastic |
| 4040031-1 |
Feed/Concentrate Port, Each |
2 |
Stainless Steel, 316L, SA-312 |
| 6120125 |
Retaining Ring for Feed/Concentrate Port, Each |
2 |
Stainless Steel, 300 Series |
| 6100218-N |
F/C Port Seal, Square Seal, Each |
2 |
Ethylene Propylene |
| 4040052-1 |
Permeate Port, Each |
2 |
PVC Thermoplastic |
| 6180342 |
Head Seal, O-Ring, Each |
2 |
Ethylene Propylene |
| 6110221-N |
Permeate Port Sal, Square Seal, Each |
2 |
Ethylene Propylene |
| 4040079 |
Retaining Ring with Finger Pull |
2 |
Stainless Steel, 316 Series |
| 6121100 |
Retaining Ring, Permeate Port |
2 |
Stainless Steel, 316 Series |
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The PROTEC™ Model PRO-4-450-SP is designed for continuous use as housing for membrane filtration elements to purify typical brackish waters at any positive pressure up to 450 PSI. The Model PRO-4-450-SP has been designed to meet the standards of the American Society of Mechanical Engineers (ASME), Boiler and Pressure Vessel Code, Section X.
| Model No. |
No. of 4"x40" Membranes per Vessel |
Vessel Diameter
In. (cm.) |
Vessel Length
In (cm.) |
Connection, FNPT, Inches |
En |
| Feed |
Brine |
Product |
Engineering Drawings
|
| PRO-4-450-SP-1 |
1 |
4.9 (12.4) |
50.9 (129.3) |
1" |
1" |
½ " |
 |
| PRO-4-450-SP-2 |
2 |
4.9 (12.4) |
90.9 (230.9) |
1" |
1" |
½ " |
| PRO-4-450-SP-3 |
3 |
4.9 (12.4) |
130.9 (332.5) |
1" |
1" |
½ " |
| PRO-4-450-SP-4 |
4 |
4.9 (12.4) |
170.9 (434.1) |
1" |
1" |
½ " |
| PRO-4-450-SP-5 |
5 |
4.9 (12.4) |
210.9 (535.7) |
1" |
1" |
½ " |
| PRO-4-450-SP-6 |
6 |
4.9 (12.4) |
250.9 (637.3) |
1" |
1" |
½ " |
Specifications
- Design Pressure: 450 PSI
- Minimum Operating Temperature: 20°F
- Maximum Operating Temperature: 120°F
- Factory Test Pressure: 495 PSI
- Burst Pressure: 2700 PSI
- Feed TDS: 10,000 ppm Max
- Operating pH Range: 3-11
- Cleaning pH Range (Less than 30 minutes): 2-12
- Application: Typical Brackish Water
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|
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Spare Parts
| Model Number |
Description |
Qty Per Vessel |
Material |
| 4040027 |
Bearing Plate, Each |
2 |
6061-T6 Aluminum, SB-221 |
| 4040030-1 |
Sealing Plate, Each |
2 |
PVC Thermoplastic |
| 4040031-1 |
Feed/Concentrate Port, Each |
2 |
Stainless Steel, 316L, SA-312 |
| 6120125 |
Retaining Ring for Feed/Concentrate Port, Each |
2 |
Stainless Steel, 300 Series |
| 6100218-N |
F/C Port Seal, Square Seal, Each |
2 |
Ethylene Propylene |
| 4040052-1 |
Permeate Port, Each |
2 |
PVC Thermoplastic |
| 6180342 |
Head Seal, O-Ring, Each |
2 |
Ethylene Propylene |
| 6110221-N |
Permeate Port Sal, Square Seal, Each |
2 |
Ethylene Propylene |
| 4040079 |
Retaining Ring with Finger Pull |
2 |
Stainless Steel, 316 Series |
| 6121100 |
Retaining Ring, Permeate Port |
2 |
Stainless Steel, 316 Series |
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Obsolete Membrane Housing Pressure Vessels
Please note that the below part s have been discontinued by the manufacturer and are no longer available to order.
Specifications are being listed here for reference and replacement information only.
| OBSOLETE Model No. |
Closest Replacement |
Pressure Rating |
No. of 4"x40" Membranes per Vessel |
Vessel Diameter
In. (cm.) |
Vessel Length
In (cm.) |
Connection, FNPT, In (MM) |
| Feed |
Brine |
Product |
| PV4040AM250SP |
PRO-4-300-SP-1 |
250 PSI |
1 |
4.5 (11) |
43 (109) |
½ (13) |
½ (13) |
½ (13) |
| PV4080AM250SP |
PRO-4-300-SP-2 |
250 PSI |
2 |
4.5 (11) |
83 (211) |
½ (13) |
½ (13) |
½ (13) |
| PV40120AM250SP |
PRO-4-300-SP-3 |
250 PSI |
3 |
4.5 (11) |
123 (312) |
½ (13) |
½ (13) |
½ (13) |
| PV4040AM300SP |
PRO-4-300-SP-1 |
300 PSI |
1 |
4.5 (11) |
42 (107) |
1 (25) |
1 (25) |
½ (13) |
| PV4080AM300SP |
PRO-4-300-SP-2 |
300 PSI |
2 |
4.5 (11) |
82 (208) |
1 (25) |
1 (25) |
½ (13) |
| PV40120AM300SP |
PRO-4-300-SP-3 |
300 PSI |
3 |
4.5 (11) |
122 (310) |
1 (25) |
1 (25) |
½ (13) |
| PV4040AM600SP |
None |
600 PSI |
1 |
4.5 (11) |
42 (107) |
1 (25) |
1 (25) |
½ (13) |
| PV4080AM600SP |
None |
600 PSI |
2 |
4.5 (11) |
82 (208) |
1 (25) |
1 (25) |
½ (13) |
| PV40120AM600SP |
None |
600 PSI |
3 |
4.5 (11) |
122 (310) |
1 (25) |
1 (25) |
½ (13) |
Spare Parts for OBSOLETE 4" Membrane Housings
Please note that the below parts have been discontinued by the manufacturer are available in limited quantities only. Please contact our customer service department for price and availability.
| Spare Part Description |
AMI Part Number: Per Pressure Rating |
| 250 PSI |
300 PSI |
600 PSI |
| End Plug with O-Rings - Feed End - No Port |
PV-EP40AMF029SP |
PV-EP40AMF031SP |
PV-EP40AMF033SP |
| End Plug with O-Rings, ½" Permeate |
PV-EP40AMP028SP |
PV-EP40AMP030SP |
PV-EP40AMP032SP |
| Retaining Ring |
PV-RR40AM018 |
PV-RR40AM018 |
PV-RR40AM012 |
| Side Port Spacer Product End (adapter) |
-- |
PV-SPP40AM21SP |
PV-SPP40AM21SP |
| Side Port Spacer Feed End (adapter) |
-- |
PV-SPF40AM22SP |
PV-SPF40AM22SP |
| Bearing Plate |
-- |
-- |
PV-BP4040AM014 |
| O-Ring External End Cap, Nitrile |
PV-OR40-342N |
PV-OR40-342N |
PV-OR40-342N |
| O-Ring Internal End Cap, Nitrile |
PV-OR40-210N |
PV-OR40-210N |
PV-OR40-210N |
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