Name: BoKaWater SW-4040 Seawater Desalination Membrane for NaCl & Boron Rejection
Brand: The professional Water Treatment Manufacturer | Bokawater solution
SKU: BK-C-SW-4040
Availability: InStock
Rating: 5 (1 reviews)

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Home > Reverse Osmosis Membrane > Sea Water Membrane Elemen...

BoKaWater SW-4040 Seawater Desalination Membrane for NaCl & Boron Rejection

Description

Description

The SW-4040 membrane offers high NaCl and boron rejection, helping customers meet World Health Organization standards and national drinking water hygiene standards. It maintains high performance over long-term operation, with strong anti-fouling capability and excellent cleaning recovery.

Product Specifications and Performance Parameters Table

Model

Stable Salt Rejection Rate

Minimum Salt Rejection Rate

Stable Boron Rejection Rate

Water Production Rate

Effective Membrane Area

Feed Water Screen

Test Solution Concentration

Test Pressure

GPD

m³/d

ft2

mil

mg/L

psi

MPa

SW-4040

99.8

99.6

1600

6.1

8.4

NaCl ：32000

H3BO3 ：5

(Boron-Based)

800

5.52

Test Conditions: NaCl + H₃BO₃ aqueous solution, temperature 25°C, pH 7.5-8.0, recovery rate 8%; water production variation range ±15%.

Operating Conditions

Maximum Operating Pressure	1200 psi (8.27MPa)
Maximum Feed Water Temperature	45 ℃
Maximum Feed Water SDI15 (Silt Density Index)	5.0
Chlorine Tolerance	0.1 mg/L
Feed Water pH Range for Continuous Operation	2-11
Feed Water pH Range for Chemical Cleaning (30 min)	1-13
Maximum Allowable Pressure Drop for Single Membrane Element	15 psi (0.10 MPa)

1.The maximum temperature for continuous operation at a pH above 10 is 35°C.

2.Under certain conditions, the presence of residual chlorine and other oxidants can lead to premature membrane failure. It is recommended that users remove it through pretreatment before residual chlorine comes into contact with the membrane.

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