SW Series (Seawater Desalination Membranes)

·High desalination rate combined with high boron rejection

·Increased thickness and cross-linking of the skin layer ensure longer membrane lifespan and chemical resistance

· Short membrane leaf design increases the utilization of effective membrane area and reduces the fouling rate of the membrane element
Can replace similar imported products such as Hydranautics and Dow reverse osmosis membranes.

Membrane Element Model	Effective Membrane Area ft2(㎡)	Feed Grid mil(mm)	Average Product Water Yield GPD(m³/d)	Stable Desalination Rate %	Minimum Desalination Rate %
SW 8040-400/28	400(37)	28	8000（30）	99.7	99.5
SW 4040-85/28	85(7.9)	28	1700（6.4）	99.6	99.4

Testing Conditions:

Test pressure: 800 psi (5.52 Mpa)

Test solution temperature: 25°C

Test solution concentration (NaCl): 32000 ppm

Test solution pH value: 7.5

Recovery rate of a single membrane element: 8%

Membrane Element Dimensions:

All dimensions shown are in millimeters (inches)

A=1016.00mm(40”); B=201.90mm(7.95”); C=28.60mm(1.125”)

Operating Limits:

Operating Conditions	SW 8040-400/28	SW 4040-85/28
Maximum operating pressure	1200 psi (8.3 MPa)	1200 psi (8.3 MPa)
Maximum feed water flow rate	75 gpm (17 m³/h)	16 gpm (3.6 m³/h)
Maximum feed water temperature	45℃	45℃
Maximum SDI15 of feed water	5	5
Free chlorine concentration in feed water	＜0.1 ppm	＜0.1 ppm
pH range	Continuous operation feed water pH range 3～10, chemical cleaning feed water pH range 2～12	Continuous operation feed water pH range 3～10, chemical cleaning feed water pH range 2～12
Maximum pressure drop of a single membrane element	15 psi (0.1 MPa)	15 psi (0.1 MPa)

The SW series (desalination series) is developed specifically for seawater desalination, ensuring a high desalination rate while maintaining a standard product water yield and providing long-term stable desalination performance.

Selection Guide: