LOW3-4021-XL

Summary

Product identification

• Model: LOW3-4021-XL
• Description: Extra Area - Low Energy, Excellent Productivity - Brackish Water Element
• Configuration: Spiral Wound
• Membrane Polymer: Composite Polyamide
• Brine Spacer Material: Polypropylene

Specifications

• Nominal Permeate Flow: 1600 gpd (6.06 m³/d)
• Nominal Salt Rejection: 98.5% (97.5% minimum)
• Nominal Membrane Area: 45 ft² (4.2 m²)

Test Conditions

(After 30 min of operation)

• Solution NaCl Concentration: 1500 ppm
• Applied Pressure: 150 psi (10.3 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)
• Diameter (B): 3.95 inches (100.3 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: 300 psi (20.7 bar)
• Maximum Temperature: 113 °F (45 °C)
• Maximum Pressure Drop: 10 psi (0.7 bar)
• Maximum Feed Flow: 12 gpm (45.4 lpm)
• Feedwater Chlorine Concentration: <0.1 ppm
• Feedwater SDI (15 min): 5.0
• Feedwater Turbidity: 1.0 NTU
• Feedwater pH Range: 3.0 ÷ 10.0
• Minimum ratio of concentrate to permeate flow for any element: 5:1

Other Information

• Minimum permeate flow for individual elements is 20 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.
• For element loading, use only glycerine to lubricate o-rings and brine seal.
• The presence of free chlorine and other oxidizing agents will cause membrane failure, and the damage is not covered under warranty.

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Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the latest revisions found in the official PDF datasheet. For contractual data and complete specifications, please refer to the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet