LOW4-8040

Summary

Product identification

• Model: LOW4-8040
• Type: Extra Low Energy, Excellent Productivity - Brackish Water Element
• Configuration: Spiral Wound
• Membrane Polymer: Composite Polyamide
• Brine Spacer Material: Polypropylene

Specifications

• Nominal Membrane Area: 400 ft² (37.2 m²)
• Permeate Flow: 12000 gpd (45.4 m³/d)
• Salt Rejection: 99.2% nominal (99.0% minimum)

Test Conditions (After 30 min of operation)

• Solution: NaCl 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 Feed Flow: 75 gpm (17.0 m³/h)
• Maximum Chlorine Concentration: <0.1 ppm
• Maximum Feedwater SDI (15min): 5.0
• Maximum Feedwater Turbidity: 1.0 NTU
• Maximum Operating Pressure: 600 psi (41.4 bar)
• Maximum Temperature: 113 °F (45 °C)
• Maximum Pressure Drop: 10 psi (0.7 bar)
• Feedwater pH Range: 3.0 ÷ 10.0
• Minimum ratio of concentrate to permeate flow: 5:1 for any element

Mechanical / hydraulic

• Total Length (A): 40.0 inches (1016 mm)
• ATD Diameter (B): 7.89 inches (200 mm)
• Connection Int. Diameter (C): 1.125 inches (28.6 mm)
• Weight: 36 lbs (16.4 Kg)

Guidelines

• Permeate flow for individual elements may vary +25% or -15%.
• Element is vacuum sealed in a polyethylene bag containing less than 1.0% sodium meta-bisulfite and 10% propylene glycol solution.
• Element is supplied with interconnector.
• Permeate obtained from the first hour of operation should be discarded.
• Avoid static permeate-side backpressure at all times.
• The presence of free chlorine and other oxidizing agents will cause membrane failure; damage is not covered under warranty.
• For element loading, use only glycerine to lubricate o-rings and brine seal.
• These membranes may be subject to drinking water application restrictions in some countries; check the application status before use and sale.

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Disclaimer: This summary is based on 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