AD series

Summary

Product identification

The AD Series are proprietary thin-film reverse osmosis (RO) elements designed for high rejection of sodium chloride (NaCl) from seawater. They are selected when high-quality permeate is required from seawater that is relatively high in Total Dissolved Solids (TDS). The membrane chemistry provides excellent rejection characteristics when operated at seawater operating conditions, including pressures exceeding 800 psi (5,516 kPa) and elevated temperatures.

• Membrane: Thin-film membrane (TFM)
• Outer wrap: Fiberglass

Element specifications

Testing conditions: 32,000 mg/l NaCl & 5 mg/l boron solution at 800 psi (5,516 kPa) operating pressure, 77°F (25°C), pH 8.0, and 7% recovery. Average salt rejection is measured after 24 hours of operation. Individual flow rate may vary ±20%.

• AD-90
  • Average permeate flow: 1375 gpd (5.2 m³/day)
  • Average NaCl rejection: 99.8%
  • Minimum NaCl rejection: 99.5%
  • Typical boron rejection: 95.0%
  • Active area: 90 ft² (8.4 m²)
  • Part number: 3056651
• AD-400,34
  • Average permeate flow: 7000 gpd (26.5 m³/day)
  • Average NaCl rejection: 99.8%
  • Minimum NaCl rejection: 99.5%
  • Typical boron rejection: 95.0%
  • Active area: 400 ft² (37.2 m²)
  • Part number: 3056654
• AD-440
  • Average permeate flow: 7700 gpd (29.2 m³/day)
  • Average NaCl rejection: 99.8%
  • Minimum NaCl rejection: 99.5%
  • Typical boron rejection: 95.0%
  • Active area: 440 ft² (40.9 m²)
  • Part number: 3056655

Mechanical / hydraulic

• AD-90
  • Type: Male
  • Dimensions:
    • A: 40.0 inches (101.6 cm)
    • B: 0.75 inches (1.90 cm)
    • C: 3.9 inches (9.9 cm)
  • Boxed Weight: 9 lbs (4 kg)
• AD-400,34
  • Type: Female
  • Dimensions:
    • A: 40.0 inches (101.6 cm)
    • B: 1.125 inches (2.86 cm)
    • C: 7.9 inches (20.1 cm)
  • Boxed Weight: 35 lbs (16 kg)
• AD-440
  • Type: Female
  • Dimensions:
    • A: 40.0 inches (101.6 cm)
    • B: 1.125 inches (2.86 cm)
    • C: 7.9 inches (20.1 cm)
  • Boxed Weight: 35 lbs (16 kg)

Operating limits

• Typical Operating Pressure: 800 psi (5,516 kPa)
• Typical Operating Flux: 7-11 GFD (12-19 LMH)
• Maximum Operating Pressure: 1,200 psi (8,274 kPa)
• Maximum Temperature:
  • Continuous operation: 122°F (50°C)
  • Clean-In-Place (CIP): 122°F (50°C)
• pH Range:
  • Optimum rejection: 7.0-7.5
  • Continuous operation: 2.0-11.0
  • Clean-In-Place (CIP): 1.0-12.0
• Maximum Pressure Drop:
  • Over an element: 15 psi (103 kPa)
  • Per housing: 50 psi (345 kPa)
• Chlorine Tolerance: 1,000+ ppm-hours; dechlorination is recommended.

Feed water

• NTU < 1
• SDI₁₅ < 5

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

Official datasheet (PDF)

PDF datasheet