BR2-4021

Summary

Product Identification

• Model: BR2-4021
• Description: High Rejection, High Productivity - Brackish Water Element
• Configuration: Spiral Wound
• Membrane Polymer: Composite Polyamide
• Brine Spacer Material: Polypropylene
• Nominal Membrane Area: 35 ft² (3.2 m²)

Performance Specifications & Test Conditions

• Permeate Flow: 900 gpd (3.4 m³/d)
• Salt Rejection: 99.4% nominal (98.0% minimum)
• Test Conditions (After 30 min of operation):
  • Solution: NaCl 1500 ppm
  • Applied Pressure: 225 psi (15.5 bar)
  • Operating Temperature: 77 °F (25 °C)
  • Permeate Recovery: 10%
  • pH Range: 6.5 ÷ 7.0

Mechanical / Hydraulic

• Dimensions:
  • Total Length (A): 21.0 inches (533.4 mm)
  • ATD Diameter (B): 3.95 inches (100.3 mm)
  • Connection Diameter (C): 0.75 inches (19.1 mm)
  • Core Tube Extension: 1.2 inches (30.5 mm)
• Weight: 4 lbs (1.8 Kg)

Operating Limits

• Maximum Feed Flow: 12 gpm (45.4 lpm)
• Maximum Chlorine Concentration: <0.1 ppm
• Maximum Feedwater SDI (15min): 5.0
• Maximum Feedwater Turbidity: 1.0 NTU
• Maximum Operating Pressure:
  • Fiberglassed: 600 psi (41.4 bar)
  • Tape Wrapped: 300 psi (20.7 bar)
• Maximum Pressure Drop: 10 psi (0.7 bar)
• Maximum Temperature: 113 °F (45 °C)
• Feedwater pH Range: 3.0 ÷ 10.0
• Minimum Ratio of Concentrate to Permeate Flow: 5:1 for any element

Handling & Operation Guidelines

• Permeate obtained from the first hour of operation should be discarded.
• Avoid static permeate-side backpressure at all times.
• For element loading, use only glycerine to lubricate o-rings and brine seal.
• Minimum permeate flow for individual elements is 15 percent below the listed flow.
• Elements are vacuum sealed in a polyethylene bag containing less than 1.0% sodium meta-bisulfite and 10% propylene glycol solution.
• The presence of free chlorine and other oxidizing agents will cause membrane failure; the damage is not covered under warranty.

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Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the official PDF datasheet. Contractual data must always match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet