SG30LE-400

Summary

Product identification

The FILMTEC™ SG30LE-400 is a low energy reverse osmosis (RO) element designed for high productivity and high rejection of brackish water. It offers high overall rejection and particularly high rejection of lower molecular weight organic compounds and silica, operating at low pressure to deliver energy savings.

It is intended for use in the roughing stage of UPW (ultrapure water) systems, suitable for both new installations and replacement situations where lower energy costs are desired. This element features an industry standard 1.125 inch ID permeate tube to facilitate element replacement.

• Product: SG30LE-400
• Part number: 265606
• Membrane Type: Polyamide Thin-Film Composite

Product specifications

Standard test conditions for permeate flow and salt rejection: 2,000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 8, and 15% recovery.

• Active area: 400 ft² (37 m²)
• Feed spacer thickness: 28 mil
• Permeate flow rate: 9,500 gpd (36 m³/d)
• Stabilized salt rejection: 99.5%
• Minimum salt rejection: 99.2%

Mechanical / hydraulic

Dimensions are provided for the SG30LE-400 element:

• A (Length): 40.0 inches (1,016 mm)
• B (Permeate Tube ID): 1.125 inches (29 mm)
• C (Diameter): 7.9 inches (201 mm)

The element is designed to fit a nominal 8.0-inch (203 mm) I.D. pressure vessel.

Operating limits

• Maximum Operating Temperature: 113°F (45°C)
  • Note: Maximum temperature for continuous operation above pH 10 is 95°F (35°C).
• Maximum Operating Pressure: 600 psig (41 bar)
• Maximum Pressure Drop (per element): 15 psig (1.0 bar)
• Maximum Pressure Drop (across entire pressure vessel/housing): 50 psi (3.4 bar)
• pH Range, Continuous Operation: 2 - 11
• pH Range, Short-Term Cleaning (30 min.): 1 - 13
• Maximum Feed Flow: 85 gpm (19 m³/hr)
• Maximum Feed Silt Density Index (SDI): 5
• Free Chlorine Tolerance: < 0.1 ppm
  • Note: The presence of free chlorine and other oxidizing agents can cause premature membrane failure. Oxidation damage is not covered under warranty. Residual free chlorine should be removed by pretreatment prior to membrane exposure.

Operation guidelines

• Start-up: Gradual changes are recommended to prevent membrane damage. Feed pressure should be increased gradually over 30-60 seconds. Cross-flow velocity should be achieved gradually over 15-20 seconds.
• Permeate discard: Permeate obtained from the first hour of operation should be discarded.
• Moisture: Keep elements moist at all times after initial wetting.
• System shutdowns: For prolonged system shutdowns, it is recommended that membrane elements be immersed in a preservative solution to prevent biological growth.
• Backpressure: Avoid static permeate-side backpressure at all times.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the official OEM PDF datasheet. Contractual data must match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet