Dow Filmtec SW30XLE-400i Reverse Osmosis (RO) Membrane

replacement 9,000 GPD seawater desalination reverse osmosis (RO) membrane element

Filmtec SW30XLE-400i offers an unequalled combination of productivity and rejection. This is the lowest energy seawater element available on the market, enabling lowest operation cost. It is also ideal for two-pass seawater designs and high TDS brackish water applications. Filmtec SW30XLE-400i comes with the unique iLEC Interlocking Endcaps that reduce system operating costs and reduce the risk of o-ring leaks that cause poor water quality. Benefits of SW30XLE-400i include:

  • Highest productivity available, with active area of 400 sq. ft., enables systems to be designed to deliver the lowest total cost of water by optimizing energy consumption, system productivity and operating flux.
  • Can effectively be used in permeate staged seawater desalination systems without impairing the performance of the downstream stage.
  • Delivers high performance over the operating lifetime without the use of oxidative post-treatments like many competitive products. This is one reason Filmtec elements are more durable and may be cleaned more effectively over a wider pH range (1-13) than other RO elements.
  • Automated, precision fabrication with a greater number of shorter membrane leaves reduces the effect of overall fouling and maximizes element efficiency, lowering your cost of operation.
Specifications:
Membrane Type:Polyamide Thin-Film Composite (TFC)
Maximum Operating Temperature:113F (45C)
Maximum Operating Pressure:1,200 psi (83 bar)
Maximum Pressure Drop:13 psi (0.9 bar)
pH Range, Continuous Operation:2-11***
pH Range, Short-Term Cleaning:1-13* (30min)
Maximum Feed Silt Density Index:5 SDI
Free Chlorine Tolerance:<0.1 ppm**
Permeate Flow Rate:9,000 GPD (34 m3/day)*
Stabilized Salt Rejection:99.7%
Minimum Salt Rejection:99.55%
Stabilized Boron Rejection:88%
Feed Spacer:28 mil
Filmtec SW30XLE-400i Reverse Osmosis (RO) Membrane

*The above benchmark values are based on the following test conditions: 32,000 ppm NaCl, 800 psi (5.5 MPa), 77F (25C), pH 8 and 8% recovery. Permeate flows for individual elements may vary +/-15%.

**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. Most RO systems have carbon pre-filters for this purpose.

***Maximum temperature for continuous operation above pH 10 is 95F (35C).

Note: Active surface area guaranteed +/-5%. Active area as stated by FilmTec is not comparable to nominal membrane area often stated by some manufacturers.

Dimensions:

   A: 40.0" (1,016mm)
   B: 40.5" (1,029mm)
   C: 7.9" (201mm)
   D: 1.125"ID (29mm)
Filmtec SW30XLE-400i Size Chart

Element fits nominal 8-inch (203 mm) I.D. pressure vessels. Individual iLEC elements measure 40.5 inches (1,029 mm) in length (B). The net length (A) of iLEC elements when connected is 40 inches (1,016 mm).

Model Diameter Inches Length Inches Active Surface
Area ft2 (m2)
Test Pressure Permeate Flow
Capacity
GPD (m3/day)
Price
(w/ Free Shipping)
Filmtec SW30XLE-400i
Our Stock #703219219
Dow Part #219219
8 40 400 (37) 800 psi 9,000 (34)
Price: US$1079.95

Notice: The use of this product in and of itself does not necessarily guarantee the removal of cysts and pathogens from water. Effective cyst and pathogen reduction is dependent on the complete system design and on the operation and maintenance of the system.