SW Membrane

WSD seawater desalination reverse osmosis membrane elements use innovative thin film nanocomposite technology (TFN) to improve water quality while reducing water treatment costs. Compared with traditional technologies, water production is increased by 20%, and the desalination rate is the industry leader, suitable for industrial water treatment such as high-salinity seawater desalination and high-concentration brackish water desalination.


■ Technical Parameters

Membrane Element Model

WSD-SW2514-6.5

 WSD-SW2521-13 WSD-SW2540-30 WSD-SW4021-33 WSD-SW4040-80 WSD-SW8040-400

Work Pressure

800PSI（5.5Mpa）

Flow Specifications

Average Water Production

 150gpd

300gpd

720gpd

800gpd

1980gpd

6000gpd

Effective Membrane Area ft²(m²)

 6.5(0.6) 13(1.2) 30(2.8)

33(3.1)

80(7.4)

400(37)

 

 

Test Conditions

Test Pressure

Test Solution

Test Temperature

Recovery Rate

Minimum Desalination Rate

Stable Desalination Rate

Water Production Floating Range

 Boron Removal Rate

800 PSI

32000PPM NaCl

5PPM Boron

77°F(25℃)

8%

99.7%

99.85%

±15%

 93%

 

Operating Limits

Membrane Element Model

WSD-SW2514-6.5

WSD-SW2521-13

WSD-SW2540-30

WSD-SW4021-33

WSD-SW4040-80

WSD-SW8040-400

Maximum Operating Temperature F°

113°F(45℃)

113°F(45℃)

113°F(45℃)

113°F(45℃)

113°F(45℃)

113°F(45℃)

Maximum Water Inlet SID 15

5

5

5

5

5

5

Inlet Water PH Range

(Continuous Operation/Cleaning)

2-11(2-12)

2-11(2-12)

2-11(2-12)

2-11(2-12)

2-11(2-12)

2-11(2-12)

Influent Free Chlorine Concentration

<0.1ppm

<0.1ppm

<0.1ppm

<0.1ppm

<0.1ppm

<0.1ppm

Dimensions

A(inch/mm)

14''

356mm

21''

533mm

40''

1016mm

21''

533mm

40''

1016mm

40''

1016mm

B(inch/mm)

1.14''

29mm

1.19''

30mm

1.19'

30mm

1.06''

27mm

1.06''

27mm

 ------

C(inch/mm)

0.75''

19mm

0.75''

19mm

0.75''

19mm

0.75''

19mm

0.75''

19mm

------

D(inch/mm)

2.4''

61mm

2.4''

61mm

2.4''

61mm

3.9''

99mm

3.9''

99mm

7.9''

200mm

E(inch/mm)

11.73''

298mm

18.62''

473mm

37.64" 

956mm

18.86''

479mm

37.87''

962mm

 ------

 

It is recommended to flush the membrane element for 24 hours before first use and drain the flushing water directly. For ease of installation, apply lubricant to all seals. Keep the element moist at all times after initial wetting. To prevent bacterial biogrowth when the system is shut down for a long time, it is recommended to immerse the membrane element in a preservative solution. Rinse off the preservative before use. The membrane has a certain resistance to short-term attack by chlorine (hypochlorite). Avoid long-term exposure to sunlight!

● Product performance may vary under different conditions. The information on this website is for reference only and is not intended to be used as a basis for performance guarantees in actual applications. WSD reserves the right to make changes. If required, clients may consult with our sales representatives about the latest information, of which no further notice will be given.