BW Membrane

WSD industrial reverse osmosis membrane elements, BW series are for high-salinity bitter alkaline water membrane elements, with high water output, stable desalination rate; energy saving, diversification and strong flexibility. They are mainly used for pure water manufacturing, boiler feed water, food processing water, pharmaceutical industry, sewage treatment and other different fields.


■ Technical Parameters

Membrane Element Model

Type

2514

2521

2540

4014

4021

4040

8040

Work Pressure

XES

100psi

100psi

100psi

100psi

100psi

100psi

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IS

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150psi

150psi

150psi

150psi

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BW

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------

------

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225psi

225psi

225psi

Flow Specifications

Average Water Production

225gpd

400gpd

850gpd

600gpd

1000gpd

2500gpd

10500gpd

Effective Membrane Area ft²(m²)

6.5(0.6)

13(1.2)

30(2.8)

23(2.16)

33(3.1)

80(7.4)

400(37)

Note: Two products are available: membrane element surface wrapping tape and glass fiber wrapping. Special pressure membranes can also be customized according to customer requirements.

 

Test Conditions

Test Pressure

Test Solution

Test Temperature

Recovery Rate

Minimum Desalination Rate

Stable Desalination Rate

Water Production Floating Range

100PSI

500PPM NaCl

77°F(25℃)

15%

98%

99%

±20%

150PSI

2000PPM NaCl

77°F(25℃)

15%

99.2%

99.5%

±20%

225PSI

2000PPM NaCl

77°F(25℃)

15%

99.3%

99.5%

±15%

 

Operating Limits

Membrane Element Model

2514

2521

2540

4014

4021

4040

8040

Maximum Operating Temperature F°

113°F(45℃)

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

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)

2-11(2-12)

Influent Free Chlorine Concentration

<0.1ppm

<0.1ppm

<0.1ppm

<0.1ppm

<0.1ppm

<0.1ppm

<0.1ppm

Dimensions

A(inch/mm)

14''

356mm

21''

533mm

40''

1016mm

14''

356mm

21''

533mm

40''

1016mm

40''

1016mm

B(inch/mm)

1.14''

29mm

1.18''

30mm

1.18''

30mm

1.02''

26mm

1.06''

27mm

1.06''

27mm

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C(inch/mm)

0.75''

19mm

0.75''

19mm

0.75''

19mm

0.75''

19mm

0.75''

19mm

0.75''

19mm

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D(inch/mm)

2.4''

61mm

2.4''

61mm

2.4''

61mm

3.9''

99mm

3.9''

99mm

3.9''

99mm

7.9''

200mm

E(inch/mm)

11.73''

298mm

18.62''

473mm

37.64" 

956mm

11.97''

304mm

18.86''

479mm

37.87''

962mm

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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.