CSM RE1810-50

Summary

Product identification

• Residential RO element (1.8 inch diameter)
• Model: RE1810-50
• Membrane type: Thin-Film Composite
• Membrane material: Polyamide (PA)
• Element configuration: Spiral-Wound, Tape Wrapping

Performance Specifications (RE1810-50)

• Permeate Flow Rate: 50 GPD (189 L/day)
• Salt Rejection: 98.0%
• Minimum Salt Rejection: 96.0%

The stated product performance is based on data taken after 30 minutes of operation at the following test conditions:

• 200 mg/L NaCl solution
• 60 psig (0.41 MPa) applied pressure
• 15% recovery
• 77 °F (25 °C)
• pH 6.5–7.0

Operating Limits

• Max. Operating Pressure: 125 psi (0.86 MPa)
• Max. Feed Flow Rate: 2 gpm (0.45 m³/hr)
• Max. Operating Temperature: 113 °F (45 °C)
• Operating pH Range: 2.0–11.0
• Max. Turbidity: 1.0 NTU
• Max. SDI (15 min): 5.0
• Max. Chlorine Concentration: < 0.1 mg/L

Mechanical / hydraulic

This element is 1.8 inches in diameter. Dimensions for model RE1810-50:

• A: 0.67 inches (17 mm)
• B: 0.55 inches (14 mm)
• C: 10.08 inches (256 mm)
• D: 0.98 inches (25 mm)
• E: 1.77 inches (45 mm)

Certifications & Packaging

• Model RE1810-50 is tested and certified under NSF/ANSI standard 58, for material requirement only.
• Dry type elements are vacuum leak tested using the San Diego Protocol.
• Dry elements are packaged in a polyethylene bag.
• Wet elements are packaged in a polyethylene bag containing sodium bisulfite (4 g/L) + HCl (0.51 g/L) solution.

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 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 (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.
• Only use chemicals compatible with the membrane elements and components; use of incompatible chemicals may void the element limited warranty.
• Permeate pressure must always be equal to 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 extract and may not include all figures, footnotes, or the latest revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet