CSM RE8040-SHA

Summary

Product identification

• Model: RE8040-SHA
• Application: High productivity RO element for seawater and high salinity well water
• Membrane type: Thin-Film Composite
• Membrane material: Polyamide (PA)
• Element configuration: Spiral-Wound, FRP Wrapping

Performance

• Permeate flow rate: 6,750 GPD (25.5 m³/day)
• Nominal salt rejection: 99.75%
• Minimum salt rejection: 99.6%
• Boron rejection: 92.0% at pH 8.0 and 5 mg/L boron feed
• Effective membrane area: 370 ft² (34.4 m²)
• Test conditions (unless otherwise specified):
  • 32,000 mg/L NaCl solution
  • 800 psig (5.5 MPa) applied pressure
  • 8% recovery
  • 77 °F (25 °C)
  • pH 6.5–7.0
• Permeate flow rate for each element may vary by no more than 15%.

Mechanical / hydraulic

• Dimensions:
  • A: 40.0 inch (1,016 mm)
  • B: 8.0 inch (201 mm)
  • C: 1.12 inch (28 mm)
• Weight: 15 kg
• Element Accessories: Each membrane element is supplied with one brine seal, one interconnector (coupler), and four o-rings.
• Pressure Vessel Compatibility: All RE8040 elements fit nominal 8.0 inch (201 mm) I.D. pressure vessels.

Operating limits

• Max. Pressure Drop / Element: 15 psi (0.1 MPa)
• Max. Pressure Drop / 240” Vessel: 60 psi (0.41 MPa)
• Max. Operating Pressure: 1,200 psi (8.27 MPa)
• Max. Feed Flow Rate: 75 gpm (17.0 m³/hr)
• Min. Concentrate Flow Rate: 16 gpm (3.6 m³/hr)
• Max. Operating Temperature: 113 °F (45 °C)
• Operating pH Range: 2.0–11.0
• CIP pH Range: 1.0–13.0
• Max. Turbidity: 1.0 NTU
• Max. SDI (15 min): 5.0
• Max. Chlorine Concentration: < 0.1 mg/L

Feed water

Design Guidelines for Various Water Sources:

• Wastewater Conventional (SDI < 5): 8–12 gfd
• Wastewater Pretreated by UF/MF (SDI < 3): 10–14 gfd
• Seawater, Open Intake (SDI < 5): 7–10 gfd
• Seawater, Beach Well (SDI < 3): 8–12 gfd
• Surface Water (SDI < 5): 12–16 gfd
• Surface Water (SDI < 3): 13–17 gfd
• Well water (SDI < 3): 13–17 gfd
• RO permeate (SDI < 1): 21–30 gfd

Saturation Limits (Using Antiscalants):

• Langlier Saturation Index (LSI): < +1.5
• Stiff and Davis Saturation Index (SDSI): < +0.5
• CaSO₄: 230% saturation
• SrSO₄: 800% saturation
• BaSO₄: 6,000% saturation
• SiO₂: 100% saturation

Handling and Storage

• Elements in boxes must be kept dry at room temperature (7–32 °C; 40–95 °F) and not in direct sunlight.
• If the polyethylene bag is damaged, a new preservative solution (sodium bisulfite) must be added and air-tight sealed to prevent drying and biological growth.
• Permeate from the first hour of operation should be discarded to flush out the preservative solution.
• Elements should be immersed in a preservative solution during storage, shipping, and system shutdowns to prevent biological growth and freezing.
• The standard storage solution contains 1% by weight sodium bisulfite or sodium metabisulfite (food grade).
• For short term storage (i.e., one week or less), 1% by weight sodium metabisulfite solution is adequate.
• Keep elements moist at all times after initial wetting.
• Avoid excessive pressure and flow spikes.
• Only use chemicals compatible with the membrane elements and components.
• Permeate pressure must always be equal to or less than the feed/concentrate pressure.

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Disclaimer: This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions found in the official PDF datasheet. Contractual data for projects must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet