CSM RE8040-SHA400

Summary

Product Identification

This is a high productivity Reverse Osmosis (RO) element designed with an extended area for seawater and high salinity well water applications.

• Model Name: RE8040-SHA400
• Membrane Type: Thin-Film Composite
• Membrane Material: Polyamide (PA)
• Element Configuration: Spiral-Wound, FRP Wrapping
• Effective Membrane Area: 400 ft² (37.2 m²)
• Weight: 15 kg
• Packaging: All elements are vacuum sealed in a polyethylene bag containing 1.0% SBS (sodium bisulfite) solution and individually packaged in a cardboard box.
• Accessories: Each membrane element is supplied with one brine seal, one interconnector (coupler), and four o-rings.
• 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 (flux in gfd based on SDI)

• 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
• Note: The above saturation limits are typically accepted by proprietary antiscalant manufacturers. Users are responsible for ensuring proper chemical(s) and concentration are dosed to prevent scale formation.

Product Water

• Permeate Flow Rate: 7,500 GPD (28.4 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.
• Permeate Flow Variation: Flow rate for each element may vary but will be no more than 15%.

Test Conditions for Performance

• 32,000 mg/L NaCl solution
• 800 psig (5.5 MPa) applied pressure
• 8% recovery
• 77 °F (25 °C)
• pH 6.5–7.0

Mechanical / Hydraulic

Dimensions

• Length (A): 40.0 inch (1,016 mm)
• Diameter (B): 8.0 inch (201 mm)
• Inter-connector Length (C): 1.12 inch (28 mm)

General Handling Procedures

• 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.
• 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. The standard storage solution contains 1% by weight sodium bisulfite or sodium metabisulfite (food grade). For short-term storage (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 extracted text and may not include all figures, footnotes, or the latest revisions from the OEM PDF datasheet. Contractual data for projects must match the specific OEM PDF revision used.

Official datasheet (PDF)

PDF datasheet