2210_TK-05

AD Series High Rejection Seawater RO Membrane

The AD Series, family of proprietary thin film reverse osmosis membrane elements, is characterized by an excellent sodium chloride rejection. AD series is selected when high quality permeate is demanded from seawater that is relatively high in TDS.
AD series new membrane chemistry provides excellent rejection characteristics when operated at seawater operating conditions (pressures exceeding 800psi (5,516kPa) and elevated temperatures).
AD series is certified to NSF/ANSI 61.

Part Number

Part Number 3056654 AD Series High Rejection Seawater RO Elements, AD-400, 34
3056655 AD Series High Rejection Seawater RO Elements, AD-440
3056651 AD Series High Rejection Seawater RO Elements, AD-90
3056652 AD Series High Rejection Seawater RO Elements, AD-365

Element Specification

Model  Average permeate flow

gpd (m³ /day) (1)(2)

Average NaCl

rejection (1)(2)

Minimum NaCl

rejection (1)(2)

Typical Boron

Rejection (2)

AD-90 AD-365 99.8% 99.5% 95.0%
AD-365 6500 (24.2) 99.8% 99.5% 95.0%
AD-400,34 7000 (26.5) 99.8% 99.5% 95.0%
AD-440 7700 (29.2) 99.8% 99.5% 95.0%

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

Model Active area ft² (m²) Outer wrap Part number
AD-90 90 (8.4) Fiberglass 3056651
AD-365 365 (33.9) Fiberglass 3056652
AD-400,34 400 (37.2) Fiberglass 3056654
AD-440 440 440 (40.9) Fiberglass 3056655

Operating & CIP Parameters

Typical Operating Pressure 800psi (5,516kPa)
Typical Operating Flux 7-11GFD (12-19LMH)
Maximum Operating Pressure 1,200psi (8,274kPa)
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 (1)

Maximum Pressure Drop Over an element: 15 psi (103kPa)

Per housing: 50 psi (345 kPa)

Chlorine Tolerance 1,000+ ppm-hours, dechlorination recommended
Feedwater NTU < 1

SDI15 < 5

 

(1) Please refer to Cleaning Guidelines Technical Bulletin TB1194.

Fact Sheet

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