Dow Filmtec Membrane Elements

FILMTEC elements from Dow feature a spiral wound design and are based on the FT30 thin-film composite polyamide membrane, which has long been the industry standard for RO performance. The FILMTEC FT30 membrane consists of three layers: an ultra-thin polyamide barrier layer, a microporous polysulfone interlayer, and a high-strength polyester support web. The FT30 membrane has been continuously updated and refined to provide higher rejection, improved membrane flux, and low fouling performance. Today's FT30 membrane is uniquely uniform in performance and quality, without the taped or glued defects that can cause other membranes to fail. Good understanding and execution of the basics of reverse osmosis can minimize troublesome and costly problems in the future. Consult these tools to get a detailed understanding of the effects of feed pressure and operation parameter changes on the performance of a membrane system.

Filmtec Membranes
Tapwater Commercial RO	2.5"x40” and 4"x40” membranes, TW30, XLE, LP, BW30, TW30HP
Tapwater Industrial RO	4”x40” and 8”x40” membranes, l BW30, BW30LE, LE, XLE, FR, RO, HSRO
Seawater RO Elements	2.5"x40”, 4”x40” and 8"x40” Seawater membranes, SW30, SW30HR, SW30HRLE
Nanofiltration Elements	4”x40” and 8"x40” Nanofiltration membranes, NF90, NF270, NF200, NF
Semiconductor Grade	8" Dia. Semiconductor SG, SG30

Residential, Home Drinking Water Elements
Model No.	Permeate Flow Rate (GPD)	Test Pressure (psig)	Stabilized Rejection
TW30-1812-24	24	50	98%	Download
TW30-1812-36	36	50	98%	Download
TW30-1812-50	50	50	98%	Download
TW30-1812-75	75	50	98%	Download
TW30-1812-100	100	50	90%	Download
Tape-Wrapped Filmtec Membranes for Commercial Applications
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* TW30-2026 220 225 2"x26" 99.0% Download TW30-2514 200 225 2.5"x14" 99.0% Download TW30-2521 325 225 2.5"x21" 99.0% Download TW30-2540 850 225 2.5"x40" 99.5% Download XLE-2540 850 100 2.5"x40" 99.0% Download TW30-4014 525 225 4"x14" 99.0% Download TW30-4021 900 225 4"x21" 99.0% Download XLE-4021 1,025 100 4"x21" 99.0% Download TW30-4040 2,400 225 4"x40" 99.5% Download LP-4040 2,700 145 4"x40" 99.2% Download XLE-4040 2,600 100 4"x40" 99.0% Download LP-2540 1,000 (3.8) 145 2.5"x40" 99.0% Download XLE-2521 365 100 2.5"x21" 99.0% Download LE-4040 2500 (9.5) 150 4"x40" 99.0% Download
FRP-Wrapped RO Elements for Light Industrial Applications
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* BW30-2540 850 225 2.5"x40" 99.5% Download BW30-4040 2,400 225 4"x40" 99.5% Download BW30LE-4040 2,300 150 4"x40" 99.2% Download
High Rejection Brackish Water Elements
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* BW30-4040 2,400 225 4"x40" 99.5% Download BW30-365 9,500 225 8"x40" 99.5% Download BW30-400 10,500 225 8"x40" 99.5% Download BW30-400/34i** 10,500 225 8"x40" 99.5% Download BW30-440i** 11,500 225 8"x40" 99.5% Download
Low Energy RO Elements
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* BW30LE-4040 2,300 150 4"x40" 99.2% Download LE-400 12,000 150 8"x40" 99.3% Download BW30LE-440 11,500 150 8"x40" 99.2% Download XLE-440 12,700 100 8"x40" 99.0% Download LE-440i** 13,200 150 8"x40" 99.3% Download
Fouling Resistant Elements
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* BW30-365-FR 9,500 225 8"x40" 99.5% Download BW30-400-FR 10,500 225 8"x40" 99.5% Download
Full-Fit Elements for Sanitary Water Purification
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* RO-4040-FF 1,650 225 4"x40" 99.5% Download HSRO-4040-FF 1,900 150 4"x40" 99.5% Download RO-390-FF 11,500 225 8"x40" 99.5% Download HSRO-390-FF 9,000 150 8"x40" 99.5% Download
Marine Elements - 2.5" & 4" Diameter
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* SW30-2514 150 800 2.5"x14" 99.75% Download SW30-2521 300 800 2.5"x21" 99.4% Download SW30-2540 700 800 2.5"x40" 99.4% Download SW30-4021 800 800 4"x21" 99.4% Download SW30-4040 1,950 800 4"x40" 99.4% Download SW30HRLE-4040 1,550 800 4"x40" 99.4% Download
Large Diameter Seawater Elements
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* SW30-380 9,000 800 8"x40" 99.4% Download SW30HR-320 6,000 800 8"x40" 99.75% Download SW30HR-380 6,000 800 8"x40" 99.7% Download SW30HRLE-4040 7,500 800 8"x40" 99.75% Download SW30HRLE-400 7,500 800 8"x40" 99.75% Download SW30XLE-400i** 9,000 800 8"x40" 99.7% Download SW30HR LE-400i** 7,500 800 8"x40" 99.75% Download
High Rejection Nanofiltration
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* NF90-4040 1,500 70 4"x40" 85-95% Download NF90-400 7,500 70 8"x40" 85-95% Download
Lowest Pressure Nanofiltration
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* NF270-4040 2,500 70 4"x40" 40-60% Download NF270-400 12,500 70 8"x40" 40-60% Download
Nanofiltration for Pesticide Removal
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* NF200-400 6,800 70 8"x40" 35-50% Download
Nanofiltration for Process Applications
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia."xLength") Stabilized Rejection* NF-2540 920 130 2.5"x40" >99% Download NF-4040 3,050 130 4"x40" >99% Download NF-400 13,700 130 8"x40" >99% Download
Semiconductor Grade RO Elements
Model No. Permeate Flow Rate* (GPD) Test Pressure (psig) Size (Dia"xLength") SG30-400 10,200 225 8"x40" Download SG30LE-430 10,000 150 8"x40" Download

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