SW30-2540

Summary

Product identification

FilmTec™Seawater Reverse Osmosis Elements offer high productivity while maintaining excellent salt rejection. FilmTec™SW30 Membrane Elements provide high flow rates for both sea-based and land-based desalinators and can operate at lower pressures to reduce pump size, cost, and operating expenses. Improved seawater membrane and automated, precision element fabrication ensure consistent product performance.

This document specifically references the FilmTec™SW30-2540 membrane element.

Performance

• Part Number: 80737
• Applied Pressure: 800 psig (55 bar)
• Permeate Flow Rate: 700 gpd (2.6 m³/d)
• Stabilized Salt Rejection: 99.4%

Test Conditions: Based on 32,000 ppm NaCl, pressure specified above, 77°F (25°C), and a recovery rate of 8% for SW30-2540. Permeate flows for individual elements may vary ±20%.

Mechanical / hydraulic

• Maximum Feed Flow Rate: 6 gpm (1.4 m³/h)
• Dimensions (Inches):
  • A: 40.0
  • B: 1.19
  • C: 0.75
  • D: 2.4
• Dimensions (mm):
  • A: 1,016
  • B: 30.2
  • C: 19
  • D: 61

SW30-2540 elements fit nominal 2.5-inch I.D. pressure vessels.

Operating limits

• Membrane Type: Polyamide Thin-Film Composite
• Maximum Operating Temperature: 113°F (45°C)
• Maximum Operating Pressure: 1,000 psi (69 bar)
• Maximum Pressure Drop: 15 psig (1.0 bar)
• pH Range - Continuous Operation: 2 - 11 (Maximum temperature for continuous operation above pH 10 is 95°F (35°C))
• pH Range - Short-Term Cleaning: 1 - 13
• Maximum Feed Silt Density Index (SDI): 5
• Free Chlorine Tolerance: <0.1 ppm (Presence of free chlorine and other oxidizing agents can cause premature membrane failure; removal by pretreatment is recommended.)

Operation Guidelines

• Avoid abrupt pressure or cross-flow variations during start-up, shutdown, or cleaning to prevent membrane damage.
• During start-up, increase feed pressure gradually over 30-60 seconds.
• Achieve cross-flow velocity at the set operating point gradually over 15-20 seconds.
• Maximum pressure drop across an entire pressure vessel (housing) is 50 psi (3.4 bar).
• Avoid static permeate-side backpressure at all times.

General Information

• Keep elements moist at all times after initial wetting.
• Failure to strictly follow operating limits and guidelines may void the limited warranty.
• During prolonged system shutdowns, it is recommended to immerse membrane elements in a preservative solution to prevent biological growth.
• The customer is fully responsible for the effects of incompatible chemicals and lubricants on elements.
• Proper start-up of RO systems is essential to prepare membranes for service and prevent damage. Refer to the application information literature entitled "Start-Up Sequence" (Form No. 45-D01609-en) for more information.
• The use of this product does not necessarily guarantee the removal of cysts and pathogens from water; effective reduction depends on complete system design, operation, and maintenance.
• Permeate obtained from the first hour of operation should be discarded.

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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 original PDF. For contractual data, always refer to the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet