CPA7-LD

Summary

Product Identification

• Membrane Element: CPA7-LD
• Type: Low Fouling Spiral Wound (With Low Fouling LD Technology®)
• Membrane Polymer: Composite Polyamide

Performance

• Permeate Flow: 11,500 gpd (43.5 m³/d)
• Salt Rejection: 99.8% (99.7% minimum)

Test Conditions

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

• 1500 ppm NaCl solution
• 225 psi (1.55 MPa) Applied Pressure
• 77 °F (25 °C) Operating Temperature
• 15% Permeate Recovery
• 6.5–7.0 pH Range

Operating Limits

• Maximum Applied Pressure: 600 psig (4.14 MPa)
• Maximum Chlorine Concentration: < 0.1 ppm
• Maximum Operating Temperature: 113 °F (45 °C)
• pH Range, Continuous (Cleaning): 2–11 (1–13)
• Maximum Feed Flow: 75 gpm (17.0 m³/h)
• Maximum Pressure Drop for Each Element: 15 psi

Feed water

• Maximum Feedwater Turbidity: 1.0 NTU
• Maximum Feedwater SDI (15 mins.): 5.0

Mechanical / Hydraulic

• Configuration: Low Fouling Spiral Wound
• Membrane Active Area: 400 ft² (37.2 m²)
• Feed Spacer: 34 mil (0.864 mm)
• Dimensions:
  • A: 40.0 inches (1016 mm)
  • B: 7.89 inches (200 mm)
  • C: 1.125 inches (28.6 mm)
• Weight: 33 lbs. (15 kgs.)

Notes

• Permeate flow for individual elements may vary ±15 percent.
• Membrane active area may vary ±4%.
• All membrane elements are supplied with a brine seal, interconnector, and o-rings.
• Elements are enclosed in a sealed polyethylene bag containing less than 1.0% sodium meta-bisulfite solution, and then packaged in a cardboard box.

---

Disclaimer: This summary is based on the provided text extraction and may not include all figures, footnotes, or the latest revisions from the original OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet