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Dow Reverse Osmosis Membranes – Seawater

 

DOW RO Membrane Elements

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Dow Seawater Reverse Osmosis Membrane Elements offer stringent water quality requirements to be met reliably with single pass seawater systems in most situations. In addition, the combination of high active area and thick feed spacer results in higher productivity and lower cleaning frequency

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SW30XHR-440i – 8″ x 40″

Nominal Active Surface Area ft2 (m2)440 (41)
Permeate Flow Rate gpd (m3/d)6,600 (25)
Stabilized Boron Rejection (%)93
Stabilized Salt Rejection (%)99.82
Minimum Salt Rejection (%)99.7

SW30ULE-440i – 8″ x 40″

Nominal Active Surface Area ft2 (m2)440 (41)
Permeate Flow Rate gpd (m3/d)12,000 (45.4)
Stabilized Boron Rejection (%)89
Stabilized Salt Rejection (%)99.7
Minimum Salt Rejection (%)99.60

SW30XLE-440i – 8″ x 40″

Nominal Active Surface Area ft2 (m2)440 (41)
Permeate Flow Rate gpd (m3/d)9,900
Stabilized Boron Rejection (%)91.5
Stabilized Salt Rejection (%)99.80
Minimum Salt Rejection (%)99.6

SW30HRLE-440i – 8″ x 40″

Nominal Active Surface Area ft2 (m2)440 (41)
Permeate Flow Rate gpd (m3/d)8,200 (31)
Stabilized Boron Rejection (%)92
Stabilized Salt Rejection (%)99.80
Minimum Salt Rejection (%)99.65

SW30XHR-400i – 8″ x 40″

Nominal Active Surface Area ft2 (m2)400 (37)
Permeate Flow Rate gpd (m3/d)6,000 (23)
Stabilized Boron Rejection (%)93
Stabilized Salt Rejection (%)99.82
Minimum Salt Rejection (%)99.70

SW30ULE-400i – 8″ x 40″

Nominal Active Surface Area ft2 (m2)400 (37)
Permeate Flow Rate gpd (m3/d)11,000 (41.6)
Stabilized Boron Rejection (%)89
Stabilized Salt Rejection (%)99.70
Minimum Salt Rejection (%)99.60

SW30XLE-400i – 8″ x 40″

Nominal Active Surface Area ft2 (m2)400 (37)
Permeate Flow Rate gpd (m3/d)9,000 (34)
Stabilized Boron Rejection (%)90.5
Stabilized Salt Rejection (%)99.8
Minimum Salt Rejection (%)99.60

SW30HRLE-400i – 8″ x 40″

Nominal Active Surface Area ft2 (m2)400 (37)
Permeate Flow Rate gpd (m3/d)7,500 (28)
Stabilized Boron Rejection (%)99.65
Stabilized Salt Rejection (%)99.80
Minimum Salt Rejection (%)92

SW30HRLE-400 – 8″ x 40″

Nominal Active Surface Area ft2 (m2)400 (37)
Permeate Flow Rate gpd (m3/d)7,500 (28)
Stabilized Boron Rejection (%)99.80
Stabilized Salt Rejection (%)99.65
Minimum Salt Rejection (%)92

SW30HRLE-370/34i – 8″ x 40″

Nominal Active Surface Area ft2 (m2)370 (34.4)
Permeate Flow Rate gpd (m3/d)6,700 (25)
Stabilized Boron Rejection (%)92
Stabilized Salt Rejection (%)99.80
Minimum Salt Rejection (%)99.65

SW30HR-380 – 8″ x 40″

Nominal Active Surface Area ft2 (m2)380 (35)
Permeate Flow Rate gpd (m3/d)6,000 (23)
Stabilized Salt Rejection (%)99.7
Minimum Salt Rejection (%)99.6

SW30-8040 – 8″ x 40″

Nominal Active Surface Area ft2 (m2)300 (28)
Permeate Flow Rate gpd (m3/d)6,000 (23)
Stabilized Salt Rejection (%)99.1
Minimum Salt Rejection (%)98.6

SW30-4040 – 4″ x 40″

Part numberSW30-4040
Applied Pressure psig (bar)800 (55)
Permeate FLow Rate gpd (m3/d)1,950 (7.4)
Stabilised Salt Rejection %99.4

SW30HRLE-4040 – 4″ x 40″

Part numberSW30HRLE-4040
Active Area ft2 (m2)85 (7.9)
Permeate FLow Rate gpd (m3/d)1,600 (6.1)
Minimum Salt Rejection %99.60
Stabilised Salt Rejection %99.75

SW30-2540 – 2½” x 40″

Part numberSW30-2540
Applied Pressure psig (bar)800 (55)
Permeate Flow Rate gpd (m3/d)700 (2.6)
Stabilised Salt Rejection %99.4

SW30-4021

Part numberSW30-4021
Applied Pressure psig (bar)800 (55)
Permeate Flow Rate gpd (m3/d)800 (3.0)
Stabilised Salt Rejection %99.4

SW30-2521

Part numberSW30-2521
Membrane TypePolyamide Thin Film Composite
Maximum Operating Temperature113 ºF (45ºC)
Maximum Operating Pressure1,000 psi (69 bar)
Maximum Pressure Drop15 psig (1.0 bar)
pH Range Continuous Operation2 - 11
pH Range Short Term Cleaning1 - 13
Maximum Feed Silt Density IndexSDI 5
Free Chlorine Tolerence<0.1 ppm

SW30-2514

Part numberSW30-2514
Membrane TypePolyamide Thin Film Composite
Maximum Operating Temperature113 ºF (45ºC)
Maximum Operating Pressure1,000 psi (69 bar)
Maximum Pressure Drop15 psig (1.0 bar)
pH Range Continuous Operation2 - 11
pH Range Short Term Cleaning1 - 13
Maximum Feed Silt Density IndexSDI 5
Free Chlorine Tolerence<0.1 ppm

SW30-6040

Part numberSW30-6040
Permeate Flow Rate gpd (m3/d)2,100 (7.9)
Minimum Salt Rejection (%)99.0
Minimal Recovery Rate (%)8