Low 2 XL

Summary

Product identification

• Product Line: LOW2 XL
• Description: Extra area, low energy, high rejection – brackish water RO elements
• Membrane Type: Polyamide RO

Product water

• Salt Rejection:
  • Stabilized Salt Rejection:
    • Oltremare LOW2 - 4014 - XL & Oltremare LOW2 - 4021 – XL: 99.4%
    • Oltremare LOW2 - 4040 - XL: 99.5%
    • Oltremare LOW2HR - 4040 - XL: 99.65%
  • Minimum Salt Rejection:
    • Oltremare LOW2 - 4014 - XL & Oltremare LOW2 - 4021 – XL: 99.0%
    • Oltremare LOW2 - 4040 - XL: 99.3%
    • Oltremare LOW2HR - 4040 - XL: 99.4%
• Permeate Flow (a):
  • Oltremare LOW2 - 4014 - XL: 1.89 m³/day (500 gpd)
  • Oltremare LOW2 - 4021 – XL: 3.78 m³/day (1000 gpd)
  • Oltremare LOW2 - 4040 - XL: 9.1 m³/day (2400 gpd)
  • Oltremare LOW2HR - 4040 - XL: 8.3 m³/day (2200 gpd)
  • (a) Test conditions: 1,500 ppm NaCl, 10.3 bar (150 psi), 25°C (77°F), 15% recovery, pH 6.5 - 7, 30 minutes operation. Flow rates will be no more than 15% below the values shown.

Operating limits

• Maximum Operating Pressure: 20.7 bar (300 psi)
• Maximum Operating Temperature: 45 °C (113 °F)
• Cleaning pH Range: 1.0 – 12.0
• Chlorine Tolerance: < 0.1 ppm
• Maximum Pressure Drop: 0.7 bar (10 psi) per element; 4 bar (60 psi) per housing

Feed water

• Maximum SDI₁₅: 5.0
• Maximum Turbidity: 1 NTU
• Pretreatment is recommended for the removal of free chlorine and other oxidizing agents to prevent damage to membranes. Oxidizing agents, such as free chlorine, in contact with polyamide membranes may result in shortened operating life or membrane failure.

Mechanical / hydraulic

Element Specifications

• Membrane Area:
  • Oltremare LOW2 - 4014 - XL: 2.3 m² (25 ft²)
  • Oltremare LOW2 - 4021 – XL: 4.2 m² (45 ft²)
  • Oltremare LOW2 - 4040 - XL & Oltremare LOW2HR - 4040 - XL: 9.8 m² (105 ft²)
• Maximum Feed Flow:
  • Oltremare LOW2 - 4014 - XL & Oltremare LOW2 - 4021 – XL: 2.72 m³/h (12 gpm)
  • Oltremare LOW2 - 4040 - XL & Oltremare LOW2HR - 4040 - XL: 3.6 m³/h (16 gpm)
• Feed Spacer Thickness: 28 mil
• Permeate Tube Type: Male (all models)

Physical Dimensions

• Oltremare LOW2 - 4014 - XL
  • Element Weight: 1.4 kg (3 lb)
  • Length (Dim. A): 355.6 mm (14 inches)
  • Diameter (Dim. B): 100.3 mm (3.95 inches)
  • Permeate Tube Outer Diameter (Dim. C): 19.1 mm (0.75 inches)
  • Protruding Permeate Tube (Dim. D): 30.5 mm (1.2 in)
• Oltremare LOW2 - 4021 – XL
  • Element Weight: 1.8 kg (4 lb)
  • Length (Dim. A): 533.4 mm (21 inches)
  • Diameter (Dim. B): 100.3 mm (3.95 inches)
  • Permeate Tube Outer Diameter (Dim. C): 19.1 mm (0.75 inches)
  • Protruding Permeate Tube (Dim. D): 30.5 mm (1.2 in)
• Oltremare LOW2 - 4040 - XL
  • Element Weight: 3.6 kg (8 lb)
  • Length (Dim. A): 1016 mm (40 inches)
  • Diameter (Dim. B): 100.3 mm (3.95 inches)
  • Permeate Tube Outer Diameter (Dim. C): 19.1 mm (0.75 inches)
  • Protruding Permeate Tube (Dim. D): 26.7 mm (1.05 in)

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original OEM PDF datasheet. Contractual data must match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet