Process spiral wound membranes
Sepra offers a large selection of spiral wound membranes for cross flow filtration processes. We have in our portfolio a wide range of membranes of different materials, degrees of filtration and molecular cut-off: this way our products allow 360 ° development of the different applications required by the market and match specific needs of new tailor-made projects.
Membrane technologies can be used individually or by combining multiple technologies, from microfiltration to reverse osmosis through nanofiltration and ultrafiltration.
MATERIAL & MWCO
Filtration Type | Material polimery | Molecular weight Cut-Off (MWCO) |
MF (Microfiltration) | PES (polietersulfone); PVDF (polivinilidenfluoruro); PP (polipropilene) | Separation of suspended solids, colloids and bacteria down to 0,1 micron |
UF (Ultrafiltration) | PES (polietersulfone); PVDF (polivinilidenfluoruro); PAN (poliacrilonitrile) | Separation of organics from 1 to 800 KDa |
NF (Nanofiltration) | Thin-Film Membrane (TFM) PA (poliammide) | Bi-valent ions separation organics from 200 to 800 Da |
OI/RO (Reverse Osmosis) | Thin-Film Membrane (TFM) PA (poliammide) | Mono-valent ions separation organics < 200 Da |
Other types of membranes are available on request. See here the list of membranes available for laboratory tests (industrial membranes are built with the same polymer as laboratory membranes): membranes list
All membranes can be assembled in a wide range of constructions, using the most varied support materials (ABS, PVC, Polysulfone, stainless steel and many others). In this way the element becomes compatible with the most varied applications.
DIMENSIONS
- The modules are cylindrical in shape of various sizes (measures expressed in inches): 2.5 "x40.0" - 3.8 "x40.0" - 3.8 "x40.0" - 3.8 "x38.0 "- 6.3" x38.0 "- 8.0" x38.0 "- 8.0" x40.0 "
- The spacer between one membrane sheet and the other may vary depending on the application (measurement expressed in mm): 0.7 crossed - 0.8 parallel - 1.2 cross./paral. - 1.8 cross./tubular - 2.3 cross./paral.
- Finally, the construction can be of the standard industrial type or of the sanitary / pharma type, designed specifically to avoid product accumulations that could generate microbiological proliferation.
SPECIAL CONSTRUCTIONS
Sepra is able to supply modules with special structure, typical examples are:
- Modules capable of withstanding high pressures up to 120 bar
- Modules heat washable at 80 ° C or resistant to process liquids at high operating temperatures
- Modules resistant to solvents, acids or strong bases
TYPICAL APPLICATIONS
DAIRY INDUSTRY
BIOTECH & PHARMACEUTICAL
- Enzyme Concentration
- Antibiotics Production
- Blood Serum
- Endotoxin & Pyrogen Removal
- Polypeptide Concentration
- Amino Acid Production
FOOD & BEVERAGE
- Corn Wet Milling
- Gelatin Concentration
- Juice Processing
- Natural Polymers & Xanthan Gum
- Maple Syrup
- Fragrance Recovery
INDUSTRIAL APPLICATIONS
- Landfill Leachate Treatment
- Organic Acid Concentration
- Dye Effluent Recovery
- Biofuels
- Oil Removal in Wastewater Treatment
- Seawater Sulfate Removal
- Oil waste and emulsions oil treatment
Here are some models of process-wound spiral membranes:
1206918-DK2540C30
1206919-DK2540C50
1206925-DK2540F30
1206926-DK2540F50
1206947-DK4040C30
1206946-DK4040C50
3050075-DK4040F30
3050073-DK4040F50
1206978-DK8040C30
1206979-DK8040C50
1206993-DK8040F30
1206994-DK8040F50
3154589-DK-400
3154650-DK-440
3028456-DL2540C30
1207015-DL2540C50
1207018-DL2540F30
1207019-DL2540F50
1207030-DL4040C30
1207028-DL4040C50
3050068-DL4040F30
3050067-DL4040F50
1207040-DL8040C30
1207041-DL8040C50
1207048-DL8040F30
1207049-DL8040F50
1231058-DURACID NF2540F30
3050564-DURACID NF4040F35
3155787-DURACID NF4040C35
3155786-DURACID NF8040C35
1231068-DURACID NF8040F35
1234385-DURASLICK NF2540
1234307-DURASLICK NF4040
1234182-DURASLICK NF8040
1231055-DURASLICK RO2540
1231048-DURASLICK RO4040
1231014-DURASLICK RO8040
1207086-GE2540F30
1207087-GE2540F50
1207091-GE4040C50
3050063-GE4040F30
1207098-GE8040F30
1207096-GE8040F50
1207101-GH2540C50
1207102-GH2540F30
3050061-GH4040F30
3050060-GH4040F50
1207118-GH8040C30
1207119-GH8040C50
1207120-GH8040F30
1207121-GH8040F50
1207129-GK2540F30
1207130-GK2540F50
3050009-GK4040F30
3050008-GK4040F50
1207151-GK8040C50
1207152-GK8040F30
1207153-GK8040F50
3151673-HP2540F30
3151070-HP4040F30
3149763-HP8040F30
3050577-INDUSTRIAL RO3 4040F35
3049999-INDUSTRIAL RO3 4040F50
1207451-INDUSTRIAL RO3 8040F35
1207450-INDUSTRIAL RO3 8040F50
3050576-INDUSTRIAL RO5 4040F35
3154755-INDUSTRIAL RO5 HP 4040F35
3144696-INDUSTRIAL RO5 8040F35
3097294-INDUSTRIAL RO5 8040F50
3153541-INDUSTRIAL RO5 HP 8040F35
3144699-INDUSTRIAL RO6 4040F35
3154756-INDUSTRIAL RO6 HP 4040F35
3144697-INDUSTRIAL RO6 8040F35
3153542-INDUSTRIAL RO6 HP 8040F35
3181319-INDUSTRIAL RO7 4040F35
3169019-INDUSTRIAL RO7 HP 4040F35
3172341-INDUSTRIAL RO7 8040F35
3169018-INDUSTRIAL RO7 HP 8040F35
3154540-INDUSTRIAL NF1 4040F35
3148906-INDUSTRIAL NF1 8040F35
1207253-JX2540F30
1207252-JX2540F50
1207264-JX4040C30
3049975-JX4040F30
3049974-JX4040F50
1207283-JX8040F30
1207284-JX8040F50
1233383-MW2540F30
3050562-MW4040F50
1220654-MW8040C50
1229852-MW8040F50
1231248-OSMO 813-ED(RO)
1240574-PT8040C50
1229772-PT8040F30
1207350-PW2540C30
1207352-PW2540F30
1207351-PW2540F50
1207372-PW4040C30
1207371-PW4040C50
3050051-PW4040F30
1207399-PW8040C50
1207404-PW8040F30
1207403-PW8040F50
1207431-SE2540F30
1207427-SE2540F50
1207488-SE8040C30
3156904-SWSR2540FM
3152753-SWSR-90
3145520-SWSR-400
3145521-SWSR-440
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