Nanofiltration (NF) Membranes

Sterlitech nanofiltration (NF) flat sheet membranes may be used in our process filtration units for evaluation or for any of your general separations needs.

Sterlitech carries four brands of nanofiltration (NF) membranes:

Veolia flat sheet membranes
TriSep flat sheet membranes
FilmTec™ flat sheet membranes
Synder Filtration flat sheet membranes

Please note: custom sample selections of our flat sheet membranes are also available upon request.

Detailed List Of Sterlitech Flat Sheet Membranes

View the latest news about Sterlitech Flat Sheet Membranes here.

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SKU	Product Name	Designation	Polymer	Size	Pack Size	Est Ship	Price
1121900	Dow Filmtec Flat Sheet Membrane, NF, PA-TFC, 90mm, 5/Pk	NF	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
YMNF1905	Dow Filmtec Flat Sheet Membrane, NF, PA-TFC, Sepa, 5/Pk	NF	Polyamide-TFC	Sepa	5	5-7 days	$296.26	View Details
YMNF2704060	Dow Filmtec Flat Sheet Membrane, NF270, PA-TFC, NF, 1016 x 1524mm, 1/Pk	NF270	Polyamide-TFC	1016 x 1524mm	1	5-7 days	$538.45	View Details
YMNF2703001	Dow Filmtec Flat Sheet Membrane, NF270, PA-TFC, NF, 305 x 305mm, 1/Pk	NF270	Polyamide-TFC	305 x 305 mm	1	5-7 days	$127.20	View Details
YMNF270475	Dow Filmtec Flat Sheet Membrane, NF270, PA-TFC, NF, 47mm, 5/Pk	NF270	Polyamide-TFC	47 mm	5	5-7 days	$83.88	View Details
1121902	Dow Filmtec Flat Sheet Membrane, NF270, PA-TFC, NF, 90mm, 5/Pk	NF270	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1121008	Dow Filmtec Flat Sheet Membrane, NF270, PA-TFC, NF, CF016, 5/Pk	NF270	Polyamide-TFC	CF016	5	5-7 days	$167.78	View Details
YMNF2704205	Dow Filmtec Flat Sheet Membrane, NF270, PA-TFC, NF, CF042, 5/Pk	NF270	Polyamide-TFC	CF042	5	5-7 days	$167.78	View Details
YMNF2701905	Dow Filmtec Flat Sheet Membrane, NF270, PA-TFC, NF, Sepa, 5/Pk	NF270	Polyamide-TFC	Sepa	5	5-7 days	$296.26	View Details
YMNF904060	Dow Filmtec Flat Sheet Membrane, NF90, PA-TFC, NF, 1016 x 1524mm, 1/Pk	NF90	Polyamide-TFC	1016 x 305 mm	1	5-7 days	$538.45	View Details
YMNF903001	Dow Filmtec Flat Sheet Membrane, NF90, PA-TFC, NF, 305 x 305mm, 1/Pk	NF90	Polyamide-TFC	305 x 305 mm	1	5-7 days	$127.20	View Details
YMNF90475	Dow Filmtec Flat Sheet Membrane, NF90, PA-TFC, NF, 47mm, 5/Pk	NF90	Polyamide-TFC	47 mm	5	5-7 days	$83.88	View Details
1121904	Dow Filmtec Flat Sheet Membrane, NF90, PA-TFC, NF, 90mm, 5/Pk	NF90	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1121012	Dow Filmtec Flat Sheet Membrane, NF90, PA-TFC, NF, CF016, 5/Pk	NF90	Polyamide-TFC	CF016	5	5-7 days	$167.78	View Details
YMNF904205	Dow Filmtec Flat Sheet Membrane, NF90, PA-TFC, NF, CF042, 5/Pk	NF90	Polyamide-TFC	CF042	5	5-7 days	$167.78	View Details
YMNF901905	Dow Filmtec Flat Sheet Membrane, NF90, PA-TFC, NF, Sepa, 5/Pk	NF90	Polyamide-TFC	Sepa	5	5-7 days	$296.26	View Details
YMNF4060	Dow Filmtec Flat Sheet Membrane, PA-TFC, NF, 1016 x 1524mm, 1/Pk	NF	Polyamide-TFC	1016 x 1524mm	1	5-7 days	$538.44	View Details
YMNF3001	Dow Filmtec Flat Sheet Membrane, PA-TFC, NF, 305 x 305mm, 1/Pk	NF	Polyamide-TFC	305 x 305 mm	1	5-7 days	Call for Price	View Details
YMNF475	Dow Filmtec Flat Sheet Membrane, PA-TFC, NF, 47mm, 5/Pk	NF	Polyamide-TFC	47 mm	5	5-7 days	Call for Price	View Details
YMNF4205	Dow Filmtec Flat Sheet Membrane, PA-TFC, NF, CF042, 5/Pk	NF	Polyamide-TFC	CF042	5	5-7 days	Call for Price	View Details
1122095	Dow Filmtec Flat Sheet Membrane, XUS2909, PA-TFC, NF, 305 x 305mm, 1/Pk	XUS2909	Polyamide-TFC	305 x 305 mm	1	5-7 days	$127.20	View Details
1122096	Dow Filmtec Flat Sheet Membrane, XUS2909, PA-TFC, NF, 47mm, 5/pk	XUS2909	Polyamide-TFC	47 mm	5	5-7 days	$83.88	View Details
1122097	Dow Filmtec Flat Sheet Membrane, XUS2909, PA-TFC, NF, 90mm, 5/pk	XUS2909	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1122098	Dow Filmtec Flat Sheet Membrane, XUS2909, PA-TFC, NF, CF016, 5/pk	XUS2909	Polyamide-TFC	CF016	5	5-7 days	$167.78	View Details
1122099	Dow Filmtec Flat Sheet Membrane, XUS2909, PA-TFC, NF, CF042, 5/pk	XUS2909	Polyamide-TFC	CF042	5	5-7 days	$167.78	View Details
1122100	Dow Filmtec Flat Sheet Membrane, XUS2909, PA-TFC, NF, SEPA, 5/pk	XUS2909	Polyamide-TFC	Sepa	5	5-7 days	$296.26	View Details
1121928	Evonik Flat Sheet Membrane, Puramem Flux, NF, 90mm, 5/Pk	Puramem Flux	Silicone-coated PAN	90 mm	5	5-7 days	$227.93	View Details
1121930	Evonik Flat Sheet Membrane, Puramem Performance, NF, 90mm, 5/Pk	Puramem Performance	Silicone-coated PAN	90 mm	5	5-7 days	$227.93	View Details
1120787	Evonik Flat Sheet Membrane, Puramem Performance, NF, CF042, 5/pk	Puramem Performance	Silicone-coated PAN	CF042	5	1-2 days	$287.04	View Details
1121934	Evonik Flat Sheet Membrane, Puramem Selective, NF, 90mm, 5/Pk	Puramem Selective	Silicone-coated PAN	90 mm	5	5-7 days	$227.93	View Details
YMNP0103001	Microdyn Nadir Flat Sheet Membrane, NP010, PES, NF, 297 x 210mm, 1/pk	NP010	PES	297 x 210 mm	1	5-7 days	$102.55	View Details
YMNP010475	Microdyn Nadir Flat Sheet Membrane, NP010, PES, NF, 47mm, 5/Pk	NP010	PES	47 mm	5	5-7 days	$83.88	View Details
1121936	Microdyn Nadir Flat Sheet Membrane, NP010, PES, NF, 90mm, 5/Pk	NP010	PES	90 mm	5	5-7 days	$227.93	View Details
1121016	Microdyn Nadir Flat Sheet Membrane, NP010, PES, NF, CF016, 5/Pk	NP010	PES	CF016	5	5-7 days	$167.78	View Details
YMNP0104205	Microdyn Nadir Flat Sheet Membrane, NP010, PES, NF, CF042, 5/Pk	NP010	PES	CF042	5	5-7 days	$167.78	View Details
YMNP0101905	Microdyn Nadir Flat Sheet Membrane, NP010, PES, NF, Sepa, 5/Pk	NP010	PES	Sepa	5	5-7 days	$296.26	View Details
YMNP0303001	Microdyn Nadir Flat Sheet Membrane, NP030, PES, NF, 297 x 210mm, 1/pk	NP030	PES	297 x 210 mm	1	5-7 days	$102.55	View Details
YMNP030475	Microdyn Nadir Flat Sheet Membrane, NP030, PES, NF, 47mm, 5/Pk	NP030	PES	47 mm	5	5-7 days	$83.88	View Details
1121938	Microdyn Nadir Flat Sheet Membrane, NP030, PES, NF, 90mm, 5/Pk	NP030	PES	90 mm	5	5-7 days	$227.93	View Details
1121018	Microdyn Nadir Flat Sheet Membrane, NP030, PES, NF, CF016, 5/Pk	NP030	PES	CF016	5	5-7 days	$167.78	View Details
YMNP0304205	Microdyn Nadir Flat Sheet Membrane, NP030, PES, NF, CF042, 5/Pk	NP030	PES	CF042	5	5-7 days	$167.78	View Details
YMNP0301905	Microdyn Nadir Flat Sheet Membrane, NP030, PES, NF, Sepa, 5/Pk	NP030	PES	Sepa	5	5-7 days	$296.26	View Details
YMNDX10001	Synder Flat Sheet Membrane, NDX, PA-TFC, NF, 1000 x 1000mm, 1/Pk	NDX	Polyamide TFC	1000 x 1000 mm	1	2 weeks	$212.05	View Details
YMNDX3001	Synder Flat Sheet Membrane, NDX, PA-TFC, NF, 305 x 305mm, 1/Pk	NDX	Polyamide TFC	305 x 305 mm	1	5-7 days	$127.20	View Details
YMNDX475	Synder Flat Sheet Membrane, NDX, PA-TFC, NF, 47mm, 5/Pk	NDX	Polyamide TFC	47 mm	5	5-7 days	$83.88	View Details
1121958	Synder Flat Sheet Membrane, NDX, PA-TFC, NF, 90mm, 5/Pk	NDX	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1121007	Synder Flat Sheet Membrane, NDX, PA-TFC, NF, CF016, 5/Pk	NDX	Polyamide-TFC	CF016	5	5-7 days	$167.78	View Details
YMNDX4205	Synder Flat Sheet Membrane, NDX, PA-TFC, NF, CF042, 5/Pk	NDX	Polyamide TFC	CF042	5	5-7 days	$167.78	View Details
YMNDX1905	Synder Flat Sheet Membrane, NDX, PA-TFC, NF, Sepa 5/Pk	NDX	Polyamide TFC	Sepa	5	5-7 days	$296.26	View Details
YMNFG10001	Synder Flat Sheet Membrane, NFG, PA-TFC, NF, 1000 x 1000mm, 1/Pk	NFG	Polyamide TFC	1000 x 1000 mm	1	1-2 days	$212.05	View Details
YMNFG3001	Synder Flat Sheet Membrane, NFG, PA-TFC, NF, 305 x 305mm, 1/Pk	NFG	Polyamide TFC	305 x 305 mm	1	5-7 days	$127.20	View Details
YMNFG475	Synder Flat Sheet Membrane, NFG, PA-TFC, NF, 47mm, 5/Pk	NFG	Polyamide TFC	47 mm	5	5-7 days	$83.88	View Details
1121960	Synder Flat Sheet Membrane, NFG, PA-TFC, NF, 90mm, 5/Pk	NFG	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1121013	Synder Flat Sheet Membrane, NFG, PA-TFC, NF, CF016, 5/Pk	NFG	Polyamide-TFC	CF016	5	5-7 days	$167.78	View Details
YMNFG4205	Synder Flat Sheet Membrane, NFG, PA-TFC, NF, CF042, 5/Pk	NFG	Polyamide TFC	CF042	5	5-7 days	$167.78	View Details
YMNFG1905	Synder Flat Sheet Membrane, NFG, PA-TFC, NF, Sepa, 5/Pk	NFG	Polyamide TFC	Sepa	5	5-7 days	$296.26	View Details
1121829	Synder Flat Sheet Membrane, NFS, PA-TFC, NF, 1000 x 1000 mm, 1/Pk	NFS	Polyamide-TFC	1000 x 1000 mm	1	5-7 days	$212.05	View Details
1122107	Synder Flat Sheet Membrane, NFS, PA-TFC, NF, 305 x 305 mm, 1/Pk	NFS	Polyamide-TFC	305 x 305 mm	1	5-7 days	$127.20	View Details
1122109	Synder Flat Sheet Membrane, NFS, PA-TFC, NF, 47mm, 5/Pk	NFS	Polyamide-TFC	47 mm	5	5-7 days	$83.88	View Details
1121962	Synder Flat Sheet Membrane, NFS, PA-TFC, NF, 90mm, 5/Pk	NFS	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1122106	Synder Flat Sheet Membrane, NFS, PA-TFC, NF, CF016, 5/Pk	NFS	Polyamide-TFC	CF016	5	5-7 days	$167.77	View Details
1122104	Synder Flat Sheet Membrane, NFS, PA-TFC, NF, CF042, 5/Pk	NFS	Polyamide-TFC	CF042	5	5-7 days	$167.77	View Details
1121830	Synder Flat Sheet Membrane, NFS, PA-TFC, NF, Sepa, 5/Pk	NFS	Polyamide-TFC	Sepa	5	5-7 days	$296.26	View Details
YMNFW10001	Synder Flat Sheet Membrane, NFW, PA-TFC, NF, 1000 x 1000mm, 1/Pk	NFW	Polyamide TFC	1000 x 1000 mm	1	2 weeks	$212.05	View Details
YMNFW3001	Synder Flat Sheet Membrane, NFW, PA-TFC, NF, 305 x 305mm, 1/Pk	NFW	Polyamide TFC	305 x 305 mm	1	5-7 days	$127.20	View Details
YMNFW475	Synder Flat Sheet Membrane, NFW, PA-TFC, NF, 47mm, 5/Pk	NFW	Polyamide TFC	47 mm	5	5-7 days	$83.88	View Details
1121964	Synder Flat Sheet Membrane, NFW, PA-TFC, NF, 90mm, 5/Pk	NFW	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1121014	Synder Flat Sheet Membrane, NFW, PA-TFC, NF, CF016, 5/Pk	NFW	Polyamide-TFC	CF016	5	5-7 days	$167.78	View Details
YMNFW4205	Synder Flat Sheet Membrane, NFW, PA-TFC, NF, CF042, 5/Pk	NFW	Polyamide TFC	CF042	5	5-7 days	$167.78	View Details
YMNFW1905	Synder Flat Sheet Membrane, NFW, PA-TFC, NF, Sepa, 5/Pk	NFW	Polyamide TFC	Sepa	5	5-7 days	$296.26	View Details
YMNFX10001	Synder Flat Sheet Membrane, NFX, PA-TFC, NF, 1000 x 1000mm, 1/Pk	NFX	Polyamide TFC	1000 x 1000 mm	1	2 weeks	$212.05	View Details
YMNFX3001	Synder Flat Sheet Membrane, NFX, PA-TFC, NF, 305 x 305mm, 1/Pk	NFX	Polyamide TFC	305 x 305 mm	1	5-7 days	$127.20	View Details
YMNFX475	Synder Flat Sheet Membrane, NFX, PA-TFC, NF, 47mm, 5/Pk	NFX	Polyamide TFC	47 mm	5	5-7 days	$83.88	View Details
1121966	Synder Flat Sheet Membrane, NFX, PA-TFC, NF, 90mm, 5/Pk	NFX	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1121015	Synder Flat Sheet Membrane, NFX, PA-TFC, NF, CF016, 5/Pk	NFX	Polyamide-TFC	CF016	5	5-7 days	$167.78	View Details
YMNFX4205	Synder Flat Sheet Membrane, NFX, PA-TFC, NF, CF042, 5/Pk	NFX	Polyamide TFC	CF042	5	5-7 days	$167.78	View Details
YMNFX1905	Synder Flat Sheet Membrane, NFX, PA-TFC, NF, Sepa, 5/Pk	NFX	Polyamide TFC	Sepa	5	5-7 days	$296.26	View Details
YMSB903001	TriSep Flat Sheet Membrane, SB90, CA Blend, NF, 1016 x 305mm, 1/Pk	SB90	Cellulose Acetate	1016 x 305 mm	1	5-7 days	$152.52	View Details
YMSB90475	TriSep Flat Sheet Membrane, SB90, CA Blend, NF, 47mm, 5/Pk	SB90	Cellulose Acetate	47 mm	5	5-7 days	$83.88	View Details
1121988	TriSep Flat Sheet Membrane, SB90, CA Blend, NF, 90mm, 5/Pk	SB90	Celulose Acetate Blend	90 mm	5	5-7 days	$227.93	View Details
1121031	TriSep Flat Sheet Membrane, SB90, CA Blend, NF, CF016, 5/Pk	SB90	Cellulose Acetate	CF016	5	5-7 days	$167.78	View Details
YMSB904205	TriSep Flat Sheet Membrane, SB90, CA Blend, NF, CF042, 5/Pk	SB90	Cellulose Acetate	CF042	5	5-7 days	$167.78	View Details
YMSB901905	TriSep Flat Sheet Membrane, SB90, CA Blend, NF, Sepa, 5/Pk	SB90	Cellulose Acetate	Sepa	5	5-7 days	$296.26	View Details
YMSBNF3001	TriSep Flat Sheet Membrane, SBNF, CA, NF, 1016 x 305mm, 1/pk	SBNF	Cellulose Acetate	1016 x 305 mm	1	5-7 days	$152.52	View Details
YMSBNF475	TriSep Flat Sheet Membrane, SBNF, CA, NF, 47mm, 5/Pk	SBNF	Cellulose Acetate	47 mm	5	5-7 days	$83.88	View Details
1121990	TriSep Flat Sheet Membrane, SBNF, CA, NF, 90mm, 5/Pk	SBNF	Celulose Acetate	90 mm	5	5-7 days	$227.93	View Details
1121032	TriSep Flat Sheet Membrane, SBNF, CA, NF, CF016, 5/Pk	SBNF	Cellulose Acetate	CF016	5	5-7 days	$167.78	View Details
YMSBNF4205	TriSep Flat Sheet Membrane, SBNF, CA, NF, CF042, 5/Pk	SBNF	Cellulose Acetate	CF042	5	5-7 days	$167.78	View Details
YMSBNF1905	TriSep Flat Sheet Membrane, SBNF, CA, NF, Sepa, 5/Pk	SBNF	Cellulose Acetate	Sepa	5	5-7 days	$296.26	View Details
YMTS403001	TriSep Flat Sheet Membrane, TS40, PPA, NF, 1016 x 305mm, 1/Pk	TS40	Polypiperazine amide	1016 x 305 mm	1	5-7 days	$152.52	View Details
YMTS40475	TriSep Flat Sheet Membrane, TS40, PPA, NF, 47mm, 5/Pk	TS40	Polypiperazine amide	47 mm	5	5-7 days	$83.88	View Details
1121992	TriSep Flat Sheet Membrane, TS40, PPA, NF, 90mm, 5/Pk	TS40	Polypiperazine amide	90 mm	5	5-7 days	$227.93	View Details
1121040	TriSep Flat Sheet Membrane, TS40, PPA, NF, CF016, 5/Pk	TS40	PPA	CF016	5	5-7 days	$167.78	View Details
YMTS404205	TriSep Flat Sheet Membrane, TS40, PPA, NF, CF042, 5/Pk	TS40	Polypiperazine amide	CF042	5	5-7 days	$167.78	View Details
YMTS401905	TriSep Flat Sheet Membrane, TS40, PPA, NF, Sepa, 5/Pk	TS40	Polypiperazine amide	Sepa	5	5-7 days	$296.26	View Details
YMTS803001	TriSep Flat Sheet Membrane, TS80, PA, NF, 1016 x 305mm, 1/Pk	TS80	Polyamide-TFC	1016 x 305 mm	1	5-7 days	$152.52	View Details
YMTS80475	TriSep Flat Sheet Membrane, TS80, PA, NF, 47mm, 5/Pk	TS80	Polyamide-TFC	47 mm	5	5-7 days	$83.88	View Details
1121994	TriSep Flat Sheet Membrane, TS80, PA, NF, 90mm, 5/Pk	TS80	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1121041	TriSep Flat Sheet Membrane, TS80, PA, NF, CF016, 5/Pk	TS80	Polyamide-TFC	CF016	5	5-7 days	$167.78	View Details
YMTS804205	TriSep Flat Sheet Membrane, TS80, PA, NF, CF042, 5/Pk	TS80	Polyamide-TFC	CF042	5	5-7 days	$167.78	View Details
YMTS801905	TriSep Flat Sheet Membrane, TS80, PA, NF, Sepa, 5/Pk	TS80	Polyamide-TFC	Sepa	5	5-7 days	$296.26	View Details
YMXN453001	TriSep Flat Sheet Membrane, XN45, PPA, NF, 1016 x 305mm, 1/Pk	XN45	Polypiperazine amide	1016 x 305 mm	1	5-7 days	$152.52	View Details
YMXN45475	TriSep Flat Sheet Membrane, XN45, PPA, NF, 47mm, 5/Pk	XN45	Polypiperazine amide	47 mm	5	5-7 days	$83.88	View Details
1121998	TriSep Flat Sheet Membrane, XN45, PPA, NF, 90mm, 5/Pk	XN45	Polypiperazine amide	90 mm	5	5-7 days	$227.93	View Details
1121056	TriSep Flat Sheet Membrane, XN45, PPA, NF, CF016, 5/Pk	XN45	PPA	CF016	5	5-7 days	$167.78	View Details
YMXN454205	TriSep Flat Sheet Membrane, XN45, PPA, NF, CF042, 5/Pk	XN45	Polypiperazine amide	CF042	5	5-7 days	$167.78	View Details
YMXN451905	TriSep Flat Sheet Membrane, XN45, PPA, NF, Sepa, 5/Pk	XN45	Polypiperazine amide	Sepa	5	5-7 days	$296.26	View Details
YMDKSP3001	Veolia Flat Sheet Membrane, DK, PA-TFC, NF, 305 x 305mm, 1/Pk	DK	Polyamide-TFC	305 x 305 mm	1	5-7 days	$99.94	View Details
YMDKSP475	Veolia Flat Sheet Membrane, DK, PA-TFC, NF, 47mm, 5/Pk	DK	Polyamide-TFC	47 mm	5	5-7 days	$83.88	View Details
1121948	Veolia Flat Sheet Membrane, DK, PA-TFC, NF, 90mm, 5/Pk	DK	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1120987	Veolia Flat Sheet Membrane, DK, PA-TFC, NF, CF016, 5/Pk	DK	Polyamide-TFC	CF016	5	5-7 days	$167.78	View Details
YMDKSP4205	Veolia Flat Sheet Membrane, DK, PA-TFC, NF, CF042, 5/Pk	DK	Polyamide-TFC	CF042	5	5-7 days	$167.78	View Details
YMDKSP1905	Veolia Flat Sheet Membrane, DK, PA-TFC, NF, Sepa, 5/Pk	DK	Polyamide-TFC	Sepa	5	5-7 days	$310.37	View Details
YMDLSP3001	Veolia Flat Sheet Membrane, DL, PA-TFC, NF, 305 x 305mm, 1/Pk	DL	Polyamide-TFC	305 x 305 mm	1	5-7 days	$99.94	View Details
YMDLSP475	Veolia Flat Sheet Membrane, DL, PA-TFC, NF, 47mm, 5/Pk	DL	Polyamide-TFC	47 mm	5	5-7 days	$83.88	View Details
1121950	Veolia Flat Sheet Membrane, DL, PA-TFC, NF, 90mm, 5/Pk	DL	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1120988	Veolia Flat Sheet Membrane, DL, PA-TFC, NF, CF016, 5/Pk	DL	Polyamide-TFC	CF016	5	5-7 days	$167.78	View Details
YMDLSP4205	Veolia Flat Sheet Membrane, DL, PA-TFC, NF, CF042, 5/Pk	DL	Polyamide-TFC	CF042	5	5-7 days	$167.78	View Details
YMDLSP1905	Veolia Flat Sheet Membrane, DL, PA-TFC, NF, Sepa, 5/Pk	DL	Polyamide-TFC	Sepa	5	5-7 days	$310.37	View Details
YMKHSP3001	Veolia Flat Sheet Membrane, Duracid NF, PA-TFC, NF, 305 x 305mm, 1/Pk	Duracid NF	Proprietary	305 x 305 mm	1	5-7 days	$109.45	View Details
YMKHSP475	Veolia Flat Sheet Membrane, Duracid NF, PA-TFC, NF, 47mm, 5/Pk	Duracid NF	Proprietary	47 mm	5	5-7 days	$83.88	View Details
1121952	Veolia Flat Sheet Membrane, Duracid NF, PA-TFC, NF, 90mm, 5/Pk	Duracid NF	Proprietary	90 mm	5	5-7 days	$227.93	View Details
1121000	Veolia Flat Sheet Membrane, Duracid NF, PA-TFC, NF, CF016, 5/Pk	Duracid NF	Proprietary	CF016	5	5-7 days	$167.78	View Details
YMKHSP4205	Veolia Flat Sheet Membrane, Duracid NF, PA-TFC, NF, CF042, 5/Pk	Duracid NF	Proprietary	CF042	5	5-7 days	$167.78	View Details
YMKHSP1905	Veolia Flat Sheet Membrane, Duracid NF, PA-TFC, NF, Sepa, 5/Pk	Duracid NF	Proprietary	Sepa	5	5-7 days	$374.41	View Details
YMRLSP3001	Veolia Flat Sheet Membrane, RL, PA-TFC, NF, 305 x 305mm, 1/Pk	RL	Polyamide-TFC	305 x 305 mm	1	5-7 days	$99.94	View Details
YMRLSP475	Veolia Flat Sheet Membrane, RL, PA-TFC, NF, 47mm, 5/Pk	RL	Polyamide-TFC	47 mm	5	5-7 days	$83.88	View Details
1121954	Veolia Flat Sheet Membrane, RL, PA-TFC, NF, 90mm, 5/Pk	RL	Polyamide-TFC	90 mm	5	5-7 days	$227.93	View Details
1120997	Veolia Flat Sheet Membrane, RL, PA-TFC, NF, CF016, 5/Pk	RL	Polyamide-TFC	CF016	5	5-7 days	$167.78	View Details
YMRLSP4205	Veolia Flat Sheet Membrane, RL, PA-TFC, NF, CF042, 5/Pk	RL	Polyamide-TFC	CF042	5	5-7 days	$167.77	View Details
YMRLSP1905	Veolia Flat Sheet Membrane, RL, PA-TFC, NF, Sepa, 5/pk	RL	Polyamide-TFC	Sepa	5	5-7 days	$374.40	View Details

Frequently Asked Questions

Q: I have a membrane sample that is too large to fit in my stirred cell. Can I cut it to fit?

Yes—flat sheet membranes can be cut to fit your stirred cell. For best results, use the stirred cell support disk as a template to trace the correct size, then cut the membrane carefully to match.

Q: I have a polymeric stirred cell and discovered that my disk size is not listed in the ordering information for the flat sheet membranes. Can I purchase the flat sheet membranes in the correct disk size for my stirred cell?

Yes, we can supply the flat sheet membranes in the correct disk size for your stirred cell. Please contact us at [email protected] for pricing and availability.

Q: How do I store used flat sheet crossflow membranes?

Used flat sheet crossflow membranes must be stored wet at all times. If a membrane is allowed to dry out, it can irreversibly lose water permeability and performance.

For storage, place the membrane fully submerged in one of the following solutions:
0.5% formaldehyde solution (helps prevent microbial growth)
1.0% sodium metabisulfite (SMBS) solution -- Replace the SMBS solution monthly to maintain effectiveness

UPDI water (ultrapure deionized water)--Replace the water weekly to reduce contamination and biofouling

Q: Are the flat sheet membranes available as roll stock?

Yes, we are able to offer some of the flat sheet membranes as roll stock. Please contact us at [email protected] to inquire about pricing and availability.

Q: Why is the flat sheet membrane I'm using measuring a flux value less than the published flux value?

Flow characteristics for a spiral element and flat sheet membrane are significantly different and are really only comparable on a qualitative basis. Variability in the membrane manufacturing process, differences in water composition, test procedures, and test equipment, used in a factory, laboratory, or elsewhere, will impact water flux results.

Reference: Understanding Variation of Experimental Flux and Rejection

Q: Do you offer samples of the flat sheet cross flow membranes?

We do not offer complimentary samples of the flat sheet crossflow membranes. However, most customers find the standard pack quantities to be quite reasonable for initial evaluations. For customers that want to evaluate several different membranes, we do offer custom variety packs. And, in some instances, we may be able to offer custom packs containing smaller sheet quantities. Please contact us to inquire about pricing and availability.

Q: What is the shelf life for the flat sheet crossflow membranes?

Sterlitech flat sheet crossflow membranes should be stored sealed in the original packaging in a climate-controlled environment, protected from direct light, heat, and temperature extremes. While we recommend using membranes as soon as practical after receipt, most flat sheet membranes can typically be stored for up to one (1) year without affecting performance when stored properly.

Q: We noticed that there are water drops in the flat sheet membrane sealed bag. Is that a quality issue?

Some manufacturers supply their membrane in wet to prevent the membrane from going dry. There is always moisture in these sealed bags and it is not uncommon for some condensation (droplets) to form.

Q: How should I remove the preservative solution from the membrane and is there any specific recommendations before use?

Rinsing the membrane on both sides with a stream of clean water is sufficient to remove the preservative solution. There is no need to pre-condition.

Q: The Flat Sheet Membranes appear dry in their packaging. How do I pre-wet them? Do I need to do this?

Yes, you need to pre-wet the membranes. The best procedure is to place them in a dry holder and allow them to wet from the inlet side first. It may be best to perform this operation with water or a buffer, then dispose of the first rinse, and introduce the process fluid. This prevents any wetting agents or preservatives from mixing with the process solution.

Q: Can I reuse flat sheet membranes after they have been removed from a test cell?

Yes, you may attempt to reuse flat sheet membranes. However, you may find it difficult to achieve a leak free seal. The cell body o-rings necessarily compress the membrane during installation and the physical action of separating the membrane from the o-rings during removal may cause damage. This damage can impede that ability to achieve a leak free seal when the membrane is reused.

Q: I accidentally allowed my flat sheet crossflow membrane to dry out. Can I still use it?

Unfortunately, allowing a previously wetted crossflow membrane to dry usually results in permanent reduction of water permeability. Nevertheless, you can attempt to re-wet the membrane and use it. First, soak the membrane in a 50% alcohol solution for at least 15min (ethanol, methanol, or IPA would be acceptable). Next, install the membrane in the test cell and operate the cell with purified deionized water as though you were pre-conditioning the membrane. After about 30min, the permeate flux should stabilize to whatever rate the membrane is now capable of.

Q: How do I clean the flat sheet membranes?

Determining which solution to use to clean a flat sheet membrane depends on the substance it is fouled with. As a general rule, you can use a caustic or oxidant solution for organic fouling and an acidic solution for inorganic causes. Please remember that different membranes polymers have different pH tolerances.

Q: Do I need to pre-condition the flat sheet membranes? And, if so, what is the recommended procedure?

Yes, for flat sheet membranes that will be used with water or aqueous solutions, we recommend that you pre-condition the membranes prior to conducting your separation experiments. Pre-conditioning helps ensure that the membranes perform as expected. Also, pre-conditioning removes preservatives and other residuals from the membranes. Purified deionized water is used to pre-condition the membranes. For all flat sheet membranes except the forward osmosis (FO) membranes, install the membrane in the test cell and apply the purified deionized water feed at the normal operating rate and pressure for the membrane. Allow the system to operate with the purified deionized water feed until the permeate flux stabilizes at an expected value. You can now replace the purified deionized water feed with your feed solution and begin your experiments.

Q: What is the recommended cross flow velocity (CFV) for the flat sheet membranes?

Most membrane manufacturers recommend CFVs of 5 to 35cm/s for their spiral wound membrane elements. The flat sheet membranes can be operated in this range to simulate use in such elements. Additionally, the flat sheet membranes may be operated outside of this range by users that want to examine the relationship between CVF and fouling and membrane performance in their applications.

Q: How do I calculate the cross flow velocity (CFV) for flat sheet membranes?

Cross flow velocity (CFV) is the linear velocity of the feed flow tangential to the membrane surface and is typically reported in m/sec or ft/sec. It is calculated by dividing the volumetric flow rate through the feed channel by the cross-sectional area of the feed channel. Please refer to the CFV article at Tech Tips for more information.

Q: What is the recommended transmembrane pressure (TMP) for the flat sheet membranes?

The recommended TMP will depend on the type of flat sheet membrane and on the application. Typically, a reasonable TMP will be the same as that noted for the permeate flux specification of the membrane. The specifications for any of the flat sheet membranes can be easily found on our website by clicking the “application/specification” tab on the product web page and scrolling down as necessary. Please contact us at [email protected] if you need additional assistance.

Q: I have noticed that the flat sheet membranes come in sizes described as CF016, CF042, and Sepa CF. What are these sizes?

These membrane sizes are intended for use in the bench-scale crossflow test cells offered by Sterlitech. Please see the list of flat sheet membranes we offer and their dimensions: HP4750 Stirred Cell: 47 mm (1.85") discs, CF016 cell: 58 x 75 mm (2.26 x 2.95") coupons, CF042 cell: 56 x 115 mm (2.20 x 4.53") coupons, Sepa CF cell: 140 x 190 mm (5.51 x 7.48") coupons, CF047 circular cell: 47 mm discs, CF090 circular cell: 90 mm discs

Q: What is the sodium chloride rejection for the Dow nanofiltration (NF) membranes?

For a feed solution of 2,000 ppm sodium chloride (NaCl) at 70 psi (0.5 MPa) and 77°F (25°C), the NF90 membrane has sodium chloride rejection of between 90-96% while the NF270 membrane has approximately 50% rejection.

Frequently Asked Questions

Q: I have a membrane sample that is too large to fit in my stirred cell. Can I cut it to fit?

Q: I have a polymeric stirred cell and discovered that my disk size is not listed in the ordering information for the flat sheet membranes. Can I purchase the flat sheet membranes in the correct disk size for my stirred cell?

Q: How do I store used flat sheet crossflow membranes?

Q: Are the flat sheet membranes available as roll stock?

Q: Why is the flat sheet membrane I'm using measuring a flux value less than the published flux value?

Q: Do you offer samples of the flat sheet cross flow membranes?

Q: What is the shelf life for the flat sheet crossflow membranes?

Q: We noticed that there are water drops in the flat sheet membrane sealed bag. Is that a quality issue?

Q: How should I remove the preservative solution from the membrane and is there any specific recommendations before use?

Q: The Flat Sheet Membranes appear dry in their packaging. How do I pre-wet them? Do I need to do this?

Q: Can I reuse flat sheet membranes after they have been removed from a test cell?

Q: I accidentally allowed my flat sheet crossflow membrane to dry out. Can I still use it?

Q: How do I clean the flat sheet membranes?

Q: Do I need to pre-condition the flat sheet membranes? And, if so, what is the recommended procedure?

Q: What is the recommended cross flow velocity (CFV) for the flat sheet membranes?

Q: How do I calculate the cross flow velocity (CFV) for flat sheet membranes?

Q: What is the recommended transmembrane pressure (TMP) for the flat sheet membranes?

Q: I have noticed that the flat sheet membranes come in sizes described as CF016, CF042, and Sepa CF. What are these sizes?

Q: What is the sodium chloride rejection for the Dow nanofiltration (NF) membranes?

Selection Tool

Frequently Asked Questions

Q: I have a membrane sample that is too large to fit in my stirred cell. Can I cut it to fit?

Q: I have a polymeric stirred cell and discovered that my disk size is not listed in the ordering information for the flat sheet membranes. Can I purchase the flat sheet membranes in the correct disk size for my stirred cell?

Q: How do I store used flat sheet crossflow membranes?

Q: Are the flat sheet membranes available as roll stock?

Q: Why is the flat sheet membrane I'm using measuring a flux value less than the published flux value?

Q: Do you offer samples of the flat sheet cross flow membranes?

Q: What is the shelf life for the flat sheet crossflow membranes?

Q: We noticed that there are water drops in the flat sheet membrane sealed bag. Is that a quality issue?

Q: How should I remove the preservative solution from the membrane and is there any specific recommendations before use?

Q: The Flat Sheet Membranes appear dry in their packaging. How do I pre-wet them? Do I need to do this?

Q: Can I reuse flat sheet membranes after they have been removed from a test cell?

Q: I accidentally allowed my flat sheet crossflow membrane to dry out. Can I still use it?

Q: How do I clean the flat sheet membranes?

Q: Do I need to pre-condition the flat sheet membranes? And, if so, what is the recommended procedure?

Q: What is the recommended cross flow velocity (CFV) for the flat sheet membranes?

Q: How do I calculate the cross flow velocity (CFV) for flat sheet membranes?

Q: What is the recommended transmembrane pressure (TMP) for the flat sheet membranes?

Q: I have noticed that the flat sheet membranes come in sizes described as CF016, CF042, and Sepa CF. What are these sizes?

Q: What is the sodium chloride rejection for the Dow nanofiltration (NF) membranes?

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