Membranes for primary water

Fiberglass membrane

Fiberglass membrane

Membranes for primary water

The spiral wound membrane of reverse osmosis is particularly suitable to be used for the removal of solids dissolved in water of different nature: tap water, fresh water, brackish water, saline water, sea water and salt water.

The RO module is a sandwich of membrane layers wrapped around a permeate tube. The layers are sealed on three sides while the fourth is connected to the permeate tube.

Membranes for water are divided into the following macro-areas:
  • Brackish water BWRO 2.5 "x40"; 4 "x40"; 8 "x40"
  • Low Energy brackish water BWRO LE RO 2540; 4040; 8040, 1812
  • Seawater SWRO / High rejection 2.5 "x40"; 4 "x40"; 8 "x40"
  • RO tap water (drinking water)
  • Energy-efficient tap water / energy-saving RO (drinking water and beverages)
  • Ultra low energy and ultra low pressure RO elements

Thanks to a thirty-year collaboration with Osmonics, Desal, GE Water, now Suez, Sepra is able to supply membranes for every type of application and proposing retrofit to all the products on the market. The Suez range has recently been expanded with the acquisition of the Lewabrane product line from the Lanxess group. The main manufacturers and brands of spiral wound membranes for water are: Filmtec DuPont, Hydranautics, Toray, CSM, Ropur, Vontron, Pentair, Mann + Hummel, Microdyn Nadir, Trisep, Oltremare, LG RO.

But how to choose the most suitable membrane?

Type of water to be treated Equivalence of Reverse Osmosis Membrane models
Lewabrane SUEZ Hydranautics Filmtec Toray CSM-Woongjin Vontron
Elements for fresh/brackish water
BW Std. High Performance		 Lewabrane B400 HP
Lewabrane B440 HP		 AG8040F-400 (HR),  AG-400
AG8040F-430 (HR),  AG-440		 CPA-3
CPA-5 MAX		 BW30-400
BW30HR-440		 TM720-400
TM720-440		 RE8040-BE
RE8040-BE440		 LP22-8040
Elements for fresh/brackish water "Low Fouling
BW Std. Fouling Resistant		 Lewabrane B370 FR Lewabrane B400 FR
Lewabrane B400 FR ASD		 AG8040F, HR LF AG8040F-400 LF,  34
AG-400 LF,34		 CPA5-LD LFC3-LD BW30(FR)-365 BW30FR-400 & /34
BW30XFR-400/34		 TML20-370 TML20-400
TML20N-400		 RF8040-FN RE8040-FE
RE8040-FEn34		 FR11-8040 FR12-8040
BW Low Energy Lewabrane B400 LE (ASD)
Lewabrane B440 LE		   ESPA2-LD
ESPA2 MAX		   TM720L-400
TM720L-440		 RE8040-UL
RE8040-UL440		 ULP32-8040  
Elements for fresh water at low pressure
BW Ultra Low Pressure
BW Fouling Resistant BW Low Energy
BW Ultra Low Pressure		 Lewabrane B400 ULP ASD Lewabrane B440 ULP Lewabrane B085 FR 4040 Lewabrane B085 LE 4040
Lewabrane B085 ULP 4040		 AK8040F-400 (HR),  AK-400
AK8040F-430 (HR),  AK-440		 ESPA-1 BW30XFRLE-400/34
BW30HRLE-440		 TMG20-400C
TMG20-440C		 RE8040-BLN
RE8040-BLN440		 ULP22-8040
AG4040FM, AG-90
AK4040FM,  AK-90		 CPA5-LD-4040
ESPA2-LD-4040 ESPA1-LD-4040		 BW30-4040
LE-4040		 TM710, TML10F
TMG10		 RE4040-BE
RE4040-BLR RE4040-BLN		 LP21-4040
ULP31-4040 ULP21-4040
Elements for seawater
SW High Rejection SW High Flow		 Lewabrane S400 HR
Lewabrane S400 HF		   SWC4-LD
SWC5-LD		 SW30XHR-400i
SW30XLE-400i		 TM820C-400
TM820V-400		   SW22-8040
Elements for seawater
SW High Rejection SW High Flow		 Lewabrane S440 HR
Lewabrane S440 HF		   SWC4 MAX
SWC5-MAX		 SW30XHR-440i
SW30XLE-440i		 TM820V-440    
Elements for seawater
SW High Rejection SW High Flow		 Lewabrane S085 HR 4040 Lewabrane S085 HF 4040 AD-90 AE-90 SWC5-LD-4040 SW30-4040 TM810C TM810V   SW21-4040
Softening elements
SW High Rejection SW High Flow		   HL4040FM
HL8040F-365
HL8040F-400
AP90 AP400		            

There are a multitude of models such as indicators below, Please contact us and we will recommend the most suitable model for your application use.
TypeCode FilmtecPart  Number
Brackish WaterBW30-254080766
Brackish WaterBW30-2540 
Brackish WaterBW30-330 
Brackish WaterBW30-36580773
Brackish WaterBW30-365-IG369692
Brackish WaterBW30-40098650
Brackish WaterBW30-400-34i248151
Brackish WaterBW30-400-IG369695
Brackish WaterBW30-4040 
Brackish WaterBW30-404080783
Brackish WaterBW30-440i249107
Low FoulingBW30FR-365174961
Brackish WaterBW30FR-400202681
Brackish WaterBW30FR-400-34i273805
Brackish WaterBW30HP-4040 
Brackish WaterBW30HR-440i 
Brackish WaterBW30LE-4040 
Brackish WaterBW30LE-440 
Brackish WaterBW30LE-440 
Brackish WaterHRLE-440i347733
Semi-ConductorHSRO-390-FF170701
Semi-ConductorHSRO-4040-FF98592
Brackish WaterLC-HR-4040343771
Brackish WaterLC-LE-4040356603
Brackish WaterLE-400249109
Brackish WaterLE-400i246670
Brackish WaterLE-4040275173
Brackish WaterLE-440i246670
Brackish WaterLP-2540231653
Brackish WaterLP-4040212819
Nano-FiltrationNF200-400 
Nano-FiltrationNF-254015138
Nano-FiltrationNF270-2540149986
Nano-FiltrationNF270-400148822
Nano-FiltrationNF270-4040149987
Nano-FiltrationNF40015144
Nano-FiltrationNF-404015143
Nano-FiltrationNF-90 
Nano-FiltrationNF90-2540149982
Nano-FiltrationNF90-400179985
Nano-FiltrationNF90-4040149983
SanitairyRO-3840-30FF 
SanitairyRO-390-FF116314
SanitairyRO-390-FF116314
SanitairyRO-4040-FF84286
SanitairyRO-4040-FF84286
Semi-ConductorSG30-400-34i272569
Semi-ConductorSG30LE-400265606
Semi-ConductorSG30LE-430 
Semi-ConductorSG30LE-440i272573
Sea-WaterSW30-251480733
Sea-WaterSW30-252180734
Sea-WaterSW30-254080737
Sea-WaterSW30-380113853
Sea-WaterSW30-402180740
Sea-WaterSW30-404080741
Sea-WaterSW30-6040 
Sea-WaterSW30-8040 
Sea-WaterSW30HR-2514 
Sea-WaterSW30HR-2521 
Sea-WaterSW30HR-2540 
Sea-WaterSW30HR-320231995
Sea-WaterSW30HR-380135137
Sea-WaterSW30HR-4021 
Sea-WaterSW30HR-4040 
Sea-WaterSW30HRLE-370-34i297258
Sea-WaterSW30HRLE-400 
Sea-WaterSW30HRLE-400i246512
Sea-WaterSW30HR-LE-4040255048
Sea-WaterSW30HRLE-440i 
Sea-WaterSW30ULE-400i259124
Sea-WaterSW30ULE-440i 
Sea-WaterSW30XHR-400i293991
Sea-WaterSW30XHR-440i 
Sea-WaterSW30XLE-400i219219
Sea-WaterSW30XLE-440i 
Drinking WaterTW30-1514-10 
Drinking WaterTW30-1812-100170102
Drinking WaterTW30-1812-16 
Drinking WaterTW30-1812-2493430
Drinking WaterTW30-1812-3680719
Drinking WaterTW30-1812-5080722
Drinking WaterTW30-1812-75114731
Tap WaterTW30-2013 
Tap WaterTW30-202680635
Tap WaterTW30-251480639
Tap WaterTW30-252180641
Tap WaterTW30-2527 
Tap WaterTW30-254080643
Tap WaterTW30-401480605
Tap WaterTW30-402180608
Tap WaterTW30-404080610
Tap WaterTW30HP-2527 
Tap WaterTW30HP-2540 
Tap WaterTW30HP-4040 
Tap WaterTW30HP-4611 
Tap WaterTW30HP-4619 
Tap WaterTW30HP-4641 
Tap WaterTW30LE-4040 
Low EnergyXLE-2521154530
Low EnergyXLE-4021154540
Low EnergyXLE-4040154546
Brackish WaterXLE-440101060
Brackish WaterXLFRLE-400-34i347731

3154588 AC-400,34
3157144 AC-440
3056652 AD-365
3056654 AD-400, 34
3056655 AD-440
3056651 AD-90
3056662 AE-400, 34
3056663 AE-440
3056660 AE-90
1206719 AG2521TM
1206729 AG2540TM
3159686 AG2540F50
1206739 AG3218T
3056666 AG-365
3056667 AG-400
3150329 AG-400 H
3056675 AG-400 LF,34
3056668 AG-400, 34
1206750 AG4021TM
1206754 AG4025T
1206756 AG4026F
1206757 AG4040C
3154063 AG4040F FR, 34
3056468 AG4040F LF WET
3032513 AG4040FM
3032514 AG4040TM
3056669 AG-440
3150328 AG-440 H
1222546 AG8040C
3032515 AG8040F
3032518 AG8040F-400
3187651 AG-400 FR H
3136931 AG8040F-400 FR, 34 WET
3056466 AG8040F-400 LF WET
3149711 AG8040F-400 LF, 34
1231786 AG8040N 400
3187569 AG-400 LE H
3187650 AG-440 LE H
3056665 AG-90
3056674 AG-90 LF
1206799 AK2521TM
1206802 AK2540TM
1206803 AK3218TM
3056679 AK-365
3056680 AK-400
3150326 AK-400 H
3150327 AK-440 H
3156843 AK-400,34
3056684 AK-400 LE
1206812 AK4021TM
1223696 AK4040C
3039082 AK4040FM
3039149 AK4040TM
3056681 AK-440
3056685 AK-440 LE
1206819 AK8040C
3039160 AK8040F
3039161 AK8040F-400
3056678 AK-90
3056683 AK-90 LE
3158782 AP2521TM
3056613 AP-365
3134276 AP-400
3158781 AP4021TM
3063034 AP-90
3097264 CE8040F,WET
1263437 DURATHERM HWS NF4040
1262377 DURATHERM HWS NF8040
1229607 DURATHERM HWS RO2521
1228430 DURATHERM HWS RO2540
1263600 DURATHERM HWS RO2540HR
1228459 DURATHERM HWS RO4040
1263435 DURATHERM HWS RO4040HR
1228481 DURATHERM HWS RO8040
3048232 DURATHERM HWS RO8040,WET
1263599 DURATHERM HWS RO8040HR
3165135 DURATHERM HWS UF4040
1263602 DURATHERM HWS UF8040
1228197 DURATHERM STD RO4040
1228225 DURATHERM STD RO8040
1207315 DURATHERM STD UF8040HR
1207230 HL2540FM
1207236 HL4040FM
1266702 HL8040F-365
1207240 HL8040F-400
3158299 HP4021TM
1242400 MUNI-NF-400
3051113 MUNI-RO-400-HR-LE-WT
3051521 MUNI-RO-400-HR-WT
3044144 MUNI-RO-400-LE-WT-FF
3147561 MUNI-RO-400-ULE-WT
3051114 MUNI-RO-430-HR-LE-WT
3051522 MUNI-RO-430-HR-WT
1119067 OSMO 411-HR(PA)
1158140 OSMO 416-HR(PA)
1224015 OSMO 416-UF(PS1)
1160154 OSMO 416-USPG
1140921 OSMO 811-HR(PA)
1158142 OSMO 813-HR(PA)
1234559 OSMO 813-USPG
1140920 OSMO 815-HR(PA)
1158141 OSMO 817-HR(PA)
1159818 OSMO 817-USPG
1266767 OSMO-BEV-RO-CG-WT
1233032 OSMO-BEV-RO-FF
3027042 OSMO-BEV-RO-LE-FF-WT
3099336 OSMO-BEV-RO-ULE-CG-WT
1233034 OSMO-BEV-UF-FF
1207369 PW4025T
3158136 BEV-RO-400-FF
3158137 BEV-NF-400-FF
3158138 BEV-RO-440-FF
3158143 BEV-RO-400-CG
3158150 BEV-RO-LE-400-FF
3158151 BEV-RO-LE-440-FF
3158152 BEV-RO-440-CG

LG BW 400 AFR G2
LG BW 400 R G2
LG BW 440 R G2
LG BW 400 R Dura
LG BW 440 R Dura
LG BW 400 R
LG BW 440 R
LG BW 400 AFR
LG BW 400 ES
LG BW 440 ES
LG BW 400 UES
LG BW 440 UES
LG BW 4040 R
LG BW 4021 R
LG BW 2521 R
LG BW 4040 ES
LG BW 4021 ES
LG BW 2521 ES
LG BW 4040 UES
LG BW 4021 UES
LG BW 2540 UES
LG BW 2521 UES
LG CW 4040 SF
LG SW 400 R G2
LG SW 440 R G2
LG SW 400 SR G2
LG SW 440 SR G2
LG SW 400 GR G2
LG SW 440 GR G2
LG SW 400 SR
LG SW 440 SR
LG SW 400 GR
LG SW 440 GR
LG SW 400 R
LG SW 440 R
LG SW 400 ES
LG SW 440 ES
LG SW 4040 R

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