FilmTec™ SW30HR-380

Summary

Product identification

The FILMTEC™ SW30HR-380 is a premium grade seawater reverse osmosis element, engineered for high active area and high salt rejection to optimize long-term economics in seawater desalination systems.

Features:

• Delivers high boron rejection to help meet World Health Organization (WHO) and other drinking water standards.
• Maintains high performance over its operating lifetime without the need for oxidative post-treatments, contributing to durability and effective cleaning over a wide pH range.
• Automated, precision fabrication with a greater number of shorter membrane leaves reduces overall fouling effects and maximizes membrane efficiency.

Product Specifications

• Product: SW30HR-380
• Part Number: 135137
• Active Area: 380 ft² (35 m²)
• Applied Pressure: 800 psig (55 bar)
• Permeate Flow Rate: 6,000 gpd (23 m³/d)
• Stabilized Salt Rejection: 99.7%
  • Minimum salt rejection is 99.6%.
  • Permeate flow and salt rejection based on test conditions: 32,000 mg/L NaCl, pressure specified above, 77°F (25°C), pH 8 and 8% recovery.
  • Permeate flows for individual elements may vary +/-15%.
• Feed spacer: 28 mil

Mechanical / hydraulic

• Membrane Type: Polyamide Thin-Film Composite
• Dimensions (Nominal):
  • A: 40.0 inches (1,016 mm)
  • B (Dia): 1.125 inches (29 mm)
  • C (Dia): 7.9 inches (201 mm)
• SW30HR-380 fits nominal 8.00-inch (203 mm) I.D. pressure vessels.
• Each element is supplied with a coupler part number 118027, including two 2-125 EPR o-rings (part number 102284).

Operating limits

• Maximum Operating Temperature: 113°F (45°C)
  • Maximum temperature for continuous operation above pH 10 is 95°F (35°C).
• Maximum Operating Pressure: 1,000 psig (69 bar)
  • Operation at pressures up to 1,200 psig (83 bar) is allowable under certain conditions; consult a Dow representative for advice.
• Maximum Pressure Drop (per element): 15 psig (1.0 bar)
• Maximum Pressure Drop (across entire pressure vessel): 50 psi (3.4 bar)
• pH Range, Continuous Operation: 2 - 11
• pH Range, Short-Term Cleaning (30 min.): 1 - 13
• Maximum Feed Silt Density Index: SDI 5
• Free Chlorine Tolerance: <0.1 ppm
  • The presence of free chlorine and other oxidizing agents can cause premature membrane failure. FilmTec recommends removing residual free chlorine by pretreatment.

General Information

• Avoid abrupt pressure or cross-flow variations during start-up, shutdown, or cleaning to prevent membrane damage.
• During start-up, gradually increase feed pressure over 30-60 seconds and achieve cross-flow velocity over 15-20 seconds.
• Permeate obtained from the first hour of operation should be discarded.
• Keep elements moist at all times after initial wetting.
• To prevent biological growth during prolonged system shutdowns, immerse membrane elements in a preservative solution.
• Avoid permeate-side backpressure at all times.

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Disclaimer: This summary is based on the provided text extraction and may not include all figures, footnotes, or the latest revisions present in the official PDF. For contractual data, please refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet