LOW3-2521

Summary

Product identification

• Model: LOW3-2521
• Description: Low Energy, Excellent Productivity - Brackish Water Element

Specifications

• Configuration: Spiral Wound
• Membrane Polymer: Composite Polyamide
• Brine Spacer Material: Polypropylene

Performance Data

• Permeate Flow: 420 gpd (1.6 m³/d)
• Salt Rejection: 98.5% nominal (97.0% minimum)
• Nominal Membrane Area: 12 ft² (1.1 m²)

Test Conditions

Performance data is measured under the following conditions (after 30 min of operation):

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

Operating limits

• Maximum Operating Pressure:
  • Fiberglassed: 600 psi (41.4 bar)
  • Tape Wrapped: 300 psi (20.7 bar)
• Maximum Operating Temperature: 113 °F (45 °C)
• Maximum Pressure Drop: 10 psi (0.7 bar)
• Maximum Feed Flow: 6 gpm (23 lpm)
• Maximum Chlorine Concentration: <0.1 ppm
• Maximum Feedwater SDI (15min): 5.0
• Maximum Feedwater Turbidity: 1.0 NTU
• Feedwater pH Range: 3.0 ÷ 10.0
• Minimum ratio of concentrate to permeate flow for any element: 5:1

Mechanical / hydraulic

• Dimensions:
  • Total Length (A): 21.0 inches (533.4 mm)
  • Total 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: 2 lbs (0.9 Kg)

General Notes and Warnings

• 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; users should 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, and such 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 from the OEM PDF datasheet. Contractual data must match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet