The A-Series, family of proprietary thin-film reverse osmosis membrane elements are characterized by high flux and high sodium chloride rejection. AK Low Pressure Brackish Water Elements are selected when high rejection and low operating pressures are desired. These elements allow significant energy savings since good rejection is achieved at operating pressures as low as 100 psi (689 kPa).
A-series, thin-film membrane (TFM*)
40 in x 7.9 in
|Average Permeate Flow
• Average salt rejection after 24 hours operation. Individual flow rate may vary +25%/-15%.
• Testing conditions: 500ppm NaCl solution at 115psi (793kPa) operating pressure, 77°F (25°C), pH7.5 and 15% recovery.
Operating and Cleaning Limits
|Typical Operating Pressure||Typical Operating Flux||Maximum Operating Pressure||Maximum Temperature, Continuous Operation||Maximum Temperature, Clean-In-Place (CIP)||pH Range, Optimum Rejection||pH Range, Continuous Operation||pH Range, Clean-In-Place (CIP)||Maximum Pressure Drop, Over An Element||Maximum Pressure Drop, Per Housing||Chlorine Tolerance||Feedwater NTU||Feedwater SDI|
|100 psi (689 kPa)||10-20 GFD (15-35 LMH)||400 psi (3,758 kPa)||122°F (50°C)||122°F (50°C)||7.0-7.5||4.0-11.0||1.0-12.0||12 psi (83 kPa)||50 psi (345 kPa)||1,000+ ppm-hours||NTU < 1||SDI < 5|