AK-90 LE

Summary

Product identification

The AK LE Series consists of high-flow, low-energy brackish water reverse osmosis (RO) elements. These elements are part of the A-Series family of proprietary thin-film RO elements, characterized by high flux and high sodium chloride (NaCl) rejection. AK LE elements are chosen when high rejection, high flow, and ultra-low operating pressures are desired.

Product features:

• Membrane: A-Series, Thin-film membrane (TFM)
• Outer wrap: Fiberglass
• Applications: Beverage, light commercial, residential, and general industrial.

Model: AK-90 LE

• Part number: 3056683

Product water

Performance for the AK-90 LE element is based on standard testing conditions of a 500 ppm NaCl solution at 115 psi (793 kPa) operating pressure, 77°F (25°C), pH 7, and 15% recovery.

• Average permeate flow: 2,600 gpd (9.8 m³/day)
  • Note: Average salt rejection after 24 hours of operation. Individual flow rate may vary ±20%.
• Average NaCl rejection: 99.3%
• Minimum NaCl rejection: 99.0%

Mechanical / hydraulic

Model: AK-90 LE

• Active area: 90 ft² (8.4 m²)
• 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)

Operating limits

• Typical Operating Pressure: 110 psi (758 kPa)
• Typical Operating Flux: 10-20 GFD (15-35 LMH)
• Maximum Operating Pressure: 400 psi (2,758 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): 1.0-13.0
• Maximum Pressure Drop:
  • Over an element: 15 psi (103 kPa)
  • Per housing: 50 psi (345 kPa)
• Chlorine Tolerance: 1,000+ ppm-hours, dechlorination recommended.

Feed water

• NTU: < 1
• SDI₁₅: < 5

Disclaimer: This summary is based on the provided text extract. The original PDF 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