LOW4-4040-XL

Summary

Product identification

• Model: LOW4-4040-XL
• Description: Extra Area - Extra Low Energy, Excellent Productivity - Brackish Water El.
• Configuration: Spiral Wound
• Membrane Polymer: Composite Polyamide
• Brine Spacer Material: Polypropylene

Performance Specifications

• Permeate Flow: 3100 gpd (11.7 m³/d)
• Salt Rejection: 99.1% nominal (99.0% minimum)
• Nominal Membrane Area: 105 ft² (9.8 m²)

Test Conditions:

• NaCl Solution: 500 ppm
• Applied Pressure: 100 psi (6.9 bar)
• Operating Temperature: 77 °F (25 °C)
• Permeate Recovery: 15%
• pH Range: 6.5 ÷ 7.0

Operating limits

• Maximum Operating Pressure: 300 psi (20.7 bar)
• Maximum Temperature: 113 °F (45 °C)
• Maximum Pressure Drop: 10 psi (0.7 bar)
• Maximum Feed Flow: 16 gpm (3.6 m³/h)
• Feed Chlorine Concentration: <0.1 ppm
• Feedwater SDI (15min): 5.0
• Feedwater Turbidity: 1.0 NTU
• Feedwater pH: 3.0 ÷ 10.0
• Minimum ratio of concentrate to permeate flow for any element: 5:1

Mechanical / hydraulic

• Total Length (A): 40.0 inches (1016 mm)
• ATD Diameter (B): 3.95 inches (100.3 mm)
• Connection Diameter (C): 0.75 inches (19.1 mm)
• Core Tube Extension (DF - Feed Side): 1.05 inches (26.7 mm)
• Core Tube Extension (DC - Conc. Side): 1.05 inches (26.7 mm)
• Weight: 8 lbs (3.6 Kg)

General Notes

• Permeate flow for individual elements may vary + or -20 percent.
• Elements are vacuum sealed in a polyethylene bag containing less than 1.0% sodium meta-bisulfite and 10% propylene glycol solution.
• Permeate obtained from the first hour of operation should be discarded.
• Avoid static permeate-side backpressure at all times.
• These membranes may be subject to drinking water application restrictions in some countries; please check the application status before use and sale.
• For element loading, use only glycerine to lubricate O-rings and brine seal.
• The customer is fully responsible for the effects of incompatible chemicals on elements. The presence of free chlorine and other oxidizing agents will cause membrane failure, the damage is not covered under warranty.

---

Disclaimer: This summary is based on the extracted text 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