Low 2 8040

Summary

Product identification

The Oltremare LOW2 series of brackish water Reverse Osmosis (RO) membranes are designed for low energy, very high rejection applications, delivering consistent and continuous high performance for high-quality water production. These elements are suitable for various purposes, including drinking water, industrial water, pharmaceutical water, wastewater treatment, and concentration of food and/or medicine.

Oltremare LOW2 elements are available in standard 2.5”, 4”, and 8” spiral-wound designs.

Membrane Characteristics

• Membrane Type: Polyamide RO
• Stabilized Salt Rejection:
  • 99.5% (for LOW2 modules)
  • 99.65% (for LOW2 – HR modules)
• Minimum Salt Rejection:
  • 99.3% (for LOW2 modules)
  • 99.5% (for LOW2 – HR modules)

Operating limits

• Maximum Operating Pressure: 41 bar (600 psi) for fiberglassed elements
• Maximum Operating Temperature: 45 °C (113 °F)
• Cleaning pH Range: 1.0 – 12.0
• Chlorine Tolerance: < 0.1 ppm (Pretreatment is recommended for the removal of free chlorine and other oxidizing agents to prevent damage to membranes.)
• Maximum Pressure Drop: 0.7 bar (10 psi) per element; 4 bar (60 psi) per housing
• Maximum SDI₁₅: 5.0
• Maximum Turbidity: 1 NTU

Design Information

(Test conditions for Permeate Flow: 1,500 ppm NaCl, 10.3 bar (150 psi), 25°C (77°F), 10% recovery, pH 6.5 - 7, 30 minutes operation. Flow rates will be no more than 15% below the values shown.)

• Oltremare LOW2 – 8040
  • Permeate Flow: 39.7 m³/day (10500 gpd)
  • Maximum Feed Flow: 17 m³/h (75 gpm)
  • Membrane Area: 37.2 m² (400 ft²)
  • Feed Spacer Thickness: 28 mil
• Oltremare LOW2G – 8040
  • Permeate Flow: 39.7 m³/day (10500 gpd)
  • Maximum Feed Flow: 17 m³/h (75 gpm)
  • Membrane Area: 37.2 m² (400 ft²)
  • Feed Spacer Thickness: 34 mil
• Oltremare LOW24 - 8040
  • Permeate Flow: 43.5 m³/day (11500 gpd)
  • Maximum Feed Flow: 17 m³/h (75 gpm)
  • Membrane Area: 40.9 m² (440 ft²)
  • Feed Spacer Thickness: 28 mil
• Oltremare LOW2-HR-8040
  • Permeate Flow: 35.9 m³/day (9500 gpd)
  • Maximum Feed Flow: 17 m³/h (75 gpm)
  • Membrane Area: 37.2 m² (400 ft²)
  • Feed Spacer Thickness: 28 mil
• Oltremare LOW2G-HR-8040
  • Permeate Flow: 35.9 m³/day (9500 gpd)
  • Maximum Feed Flow: 17 m³/h (75 gpm)
  • Membrane Area: 37.2 m² (400 ft²)
  • Feed Spacer Thickness: 34 mil
• Oltremare LOW24–HR-8040
  • Permeate Flow: 39.7 m³/day (10500 gpd)
  • Maximum Feed Flow: 17 m³/h (75 gpm)
  • Membrane Area: 40.9 m² (440 ft²)
  • Feed Spacer Thickness: 28 mil

Physical Dimensions

• Oltremare LOW2 – 8040
  • Element Weight: 16.4 kg (36 lb)
  • Dim. A: 1016 mm (40 inches)
  • Dim. B: 200 mm (7.89 inches)
  • Dim. C (inner diameter): 28.6 mm (1.125 inches)
  • Permeate Tube: Female
• Oltremare LOW2G – 8040
  • Element Weight: 16.4 kg (36 lb)
  • Dim. A: 1016 mm (40 inches)
  • Dim. B: 200 mm (7.89 inches)
  • Dim. C (inner diameter): 28.6 mm (1.125 inches)
  • Permeate Tube: Female
• Oltremare LOW24 - 8040
  • Element Weight: 16.4 kg (36 lb)
  • Dim. A: 1016 mm (40 inches)
  • Dim. B: 200 mm (7.89 inches)
  • Dim. C (inner diameter): 28.6 mm (1.125 inches)
  • Permeate Tube: Female
• Oltremare LOW2-HR-8040
  • Element Weight: 16.4 kg (36 lb)
  • Dim. A: 1016 mm (40 inches)
  • Dim. B: 200 mm (7.89 inches)
  • Dim. C (inner diameter): 28.6 mm (1.125 inches)
  • Permeate Tube: Female
• Oltremare LOW2G-HR-8040
  • Element Weight: 16.4 kg (36 lb)
  • Dim. A: 1016 mm (40 inches)
  • Dim. B: 200 mm (7.89 inches)
  • Dim. C (inner diameter): 28.6 mm (1.125 inches)
  • Permeate Tube: Female
• Oltremare LOW24–HR-8040
  • Element Weight: 16.4 kg (36 lb)
  • Dim. A: 1016 mm (40 inches)
  • Dim. B: 200 mm (7.89 inches)
  • Dim. C (inner diameter): 28.6 mm (1.125 inches)
  • Permeate Tube: Female

Important Information

• Start-up: Flush elements for 30 minutes at low pressure and discard permeate during the flush prior to operation.
• Cleaning: Elements must be cleaned periodically to ensure proper operation and prevent membrane damage.
• Storage: Elements must be stored appropriately to ensure proper operation and prevent membrane damage.

Disclaimer

This summary is based on the provided text extract. The full OEM PDF datasheet may contain additional figures, footnotes, or revisions not present here. For contractual data, always refer to the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet