CSM RE8040-BR400

Summary

Product Identification

• Model: RE8040-BR400
• Product Type: High Rejection RO element with extended area for brackish water
• Part Number: 40000308 (element), 40000309 (inter-connector)

Performance Specifications

• Permeate flow rate: 6,600 GPD (24.9 m³/day)
• Nominal salt rejection: 99.75%
• Effective membrane area: 400 ft² (37.2 m²)
• Minimum salt rejection: 99.4%
• Permeate flow rate for each element may vary but will be no more than 15%.

Performance is based on data taken after 30 minutes of operation at the following test conditions:

• 2,000 mg/L NaCl solution at 225 psig (1.5 MPa) applied pressure
• 15% recovery
• 77 °F (25 °C)
• pH 6.5 – 7.0

Membrane Characteristics

• Membrane type: Thin-Film Composite
• Membrane material: Polyamide (PA)
• Element configuration: Spiral-Wound, FRP Wrapping

Mechanical and Dimensions

• Length (A): 40.0 inch (1,016 mm)
• Diameter (B): 8.0 inch (201 mm)
• Interconnector length (C): 1.12 inch (28 mm)
• Weight: 15 kg
• Each membrane element supplied with one brine seal, one interconnector (coupler) and four o-rings.
• 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: 600 psi (4.14 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

Design Guidelines

• 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 must be kept dry at room temperature (7–32 °C; 40–95 °F) and should not be stored 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 for preventing biological growth.
• 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. Use of such chemicals may void the element limited warranty.
• Permeate pressure must always be equal or less than the feed/concentrate pressure. Damage caused by permeate back pressure voids the element limited warranty.

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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. For contractual data, please refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet