LOW1-2540

Summary

Product identification

• Model: LOW1-2540
• Description: Low Energy, Very High Rejection - Brackish Water Element

Specifications

• Configuration: Spiral Wound
• Membrane Polymer: Composite Polyamide
• Brine Spacer Material: Polypropylene
• Nominal Membrane Area: 28 ft² (2.6 m²)
• Nominal Permeate Flow: 800 gpd (3.03 m³/d)
• Salt Rejection: 99.1% nominal (98.0% minimum)

Test Conditions

• Solution: 1500 ppm NaCl
• Applied Pressure: 150 psi (10.3 bar)
• Operating Temperature: 77 °F (25 °C)
• Permeate Recovery: 10%
• Permeate pH (After 30 min of operation): 6.5 ÷ 7.0

Mechanical / hydraulic

• Total Length (A): 40.0 inches (1016 mm)
• Diameter (B): 2.4 inches (61 mm)
• Connection Diameter (C): 0.75 inches (19.1 mm)
• Core Tube Extension Feed Side (DF): 1.2 inches (30.5 mm)
• Core Tube Extension Concentrate Side (DC): 1.2 inches (30.5 mm)
• Weight: 4 lbs (1.8 Kg)

Operating limits

• Maximum Operating Pressure:
  • Fiberglassed: 600 psi (41.4 bar)
  • Tape Wrapped: 300 psi (20.7 bar)
• Maximum Temperature: 113 °F (45 °C)
• Maximum Pressure Drop: 10 psi (0.7 bar)
• Maximum Feed Flow: 6 gpm (23 lpm)
• Minimum Ratio of Concentrate to Permeate Flow for any element: 5:1

Feed water

• Feedwater pH Range: 3.0 ÷ 10.0
• Maximum Feed Chlorine Concentration: <0.1 ppm
• Maximum Feedwater SDI (15min): 5.0
• Maximum Feedwater Turbidity: 1.0 NTU

Important Notices and Guidelines

• The limitations shown are for general use; more conservative values may be needed for specific projects.
• Minimum permeate flow for individual elements is 15 percent below listed flow.
• 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; check 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. Free chlorine and other oxidizing agents will cause membrane failure, and damage is not covered under warranty.

Disclaimer

This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet