FILMTEC SW30HRLE-370/34i Membrane Elements
Features
Dow Water & Process Solutions offers various premium seawater reverse osmosis (RO) elements designed to produce high quality water and reduce capital and operation cost of seawater RO systems. These products combine premium membrane performance with automated precision fabrication to provide reliable and consistent performance.
DOW FILMTEC™ SW30HRLE-370/34i element is a durable, high-rejection, high-productivity seawater element for use in high fouling or challenging feedwater conditions, helping to support smooth operations and low cost of water.
The benefits of DOW FILMTEC™ SW30HRLE-370/34i elements include:
- A wide 34 mil feed spacer to lessen the impact of fouling on pressure drop across a vessel and enhance cleaning effectiveness.
- An active area of 370 square feet maximizing productivity and enabling accurate and predictable system design and operating flux.
- Utilization of the distinct iLEC™ interlocking endcaps that help to reduce system operating costs and reduce the risk of o-ring leaks that cause poor water quality.
- Effective use in permeate staged seawater desalination systems without impairing the performance of the downstream stage.
- High performance over the operating lifetime without the use of oxidative post-treatments. DOW FILMTEC elements are more durable and may be cleaned over a wider pH range (1-13).
- Automated, precision fabrication with a greater number of shorter membrane leaves reducing the effect of overall fouling and maximizing element efficiency.
| Product | Part Number | Active Area ft2 (m2) | Maximum Operating Pressure psig (bar) | Permeate Flow Rate gpd (m3/d) |
Stabilized Boron Rejection % | Minimum Salt Rejection % |
Stabilized Salt Rejection % |
|---|---|---|---|---|---|---|---|
| SW30HRLE-370/34i | 297258 | 400 (37) | 1,200 (83) | 6,700 (25) | 92 | 99.65 | 99.80 |
Dimensions – inches (mm)
| Product | Feed Spacer (mil) | A | B | C | D |
|---|---|---|---|---|---|
| SW30HRLE-370/34i | 34 | 40 (1,016) | 40.5 (1,029) | 7.9 (201) | 1.125 (29) |
Operating Limits:
- Membrane Type………………………………………………………………. Polyamide Thin-Film Composite
- Maximum Operating Temperature…………………………………………. 113°F (45°C)
- Maximum Element Pressure Drop…………………………………………...13 psig (0.9 bar)
- pH Range, Continuous Operationa …………………………………………..2 – 11
- pH Range, Short-Term Cleaning (30 min.)b…………………………………1 – 13
- Maximum Feed Silt Density Index (SDI)……………………………………. SDI 5
- Free Chlorine Tolerancec …………………………………………………….<0.1 ppm
a. Maximum temperature for continuous operation above pH 10 is 95°F (35°C).
b. Refer to Cleaning Guidelines in form number 609-23010.
c. 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. FilmTec Corporation recommends removing residual free chlorine by pretreatment prior to membrane exposure. Please refer to technical bulletin 609-22010 for more information.
Pure Aqua manufactures and supplies RO systems, and as a leading RO supplier in the sphere of development and implementation of
reverse osmosis and water treatment systems, Pure Aqua earned a great industry reputation in the RO market.
In all commercial and industrial RO systems that Pure Aqua supplies, we include a cleaning procedures in the operating and installation manual.
Pure Aqua, as a leader RO supplier, has a presence all over the world with a strong dealership network to help our customers.
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