SW30HRLE-4040 FilmTec RO Membrane 4"x40" 1,650 GPD

DOW FILMTEC SW30HRLE-4040 Elements are the 4-inch diameter version of DOW FILMTEC SW30HRLE-400, one of the industry's leading seawater elements, which offers an unprecedented combination of high salt rejection and productivity to enable the low total cost of purifying high salinity water. DOW FILMTEC SW30HRLE-4040 elements deliver high performance over the operating lifetime without the use of oxidative post-treatments and high sodium chloride and boron rejection to help meet World Health Organization (WHO) and other drinking water standards. DOW FILMTEC SW30HRLE-4040 may be used as a pilot element to demonstrate performance for the design of larger systems. DOW FILMTEC SW30HR LE-4040 is FDA – 21 CFR 177.2550; Food and Drug Administration Compliant.

Specifications for SW30HR LE-4040

FilmTec Product:	SW30HR LE-4040
FilmTec Part Number:	255048
Size (Approximate):	4" Dia. x 40"L
Flow Rate:	1,600 gpd (6.1 m³/d)
Applied Pressure:	800 psig (55 bar)
Stabilized Salt Rejection:	99.75%
Minimum Salt Rejection:	99.60%
Exterior:	Hard Shell Fiberglass
Active Membrane Surface Area:	85 sq. ft.
Feed Spacer:	28 mil
Membrane Type:	Polyamide Thin-Film Composite

Permeate flow and salt rejection based:  32,000 ppm NaCl feed stream, 77°F, 8% recovery, 800 psig, pH 8.

Operating Limits for SW30HR LE-4040

Maximum Operating Temperature:	113°F (45°C)
Maximum Operating Pressure:	1,000 psig (69 bar)
Maximum Pressure Drop:	15 psig (1 bar)
pH Range, Continuous Operation*:	2-11
pH Range, Short-Term Cleaning**:	1-13
Maximum Feed Silt Density Index:	SDI 5
Fere Clorine Tolerance***:	<0.1ppm

*Maximum temperature for continuous operation above pH 10 is 95°F **Refer to cleaning guidelines. ***Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Since oxidation damage is not covered under warranty, Dow recommends removing residual free chlorine by pretreatment prior to membrane exposure.