BW Series (Brackish Water Membranes)

·Low operational energy consumption, high water production, maintains high desalination rate along with high water yield

·Membrane sheets use an oxidation-free treatment process, ensuring stability and longevity of the membrane

·Can adapt to water quality conditions and temperature environments in most regions

Can replace similar imported products such as Hydranautics and Dow reverse osmosis membranes.

Membrane Element Category	Membrane Element Model	Effective Membrane Area ft2(㎡)	Maximum Pressure bar(psi)	Feed Grid mil(mm)	Average Product Water Yield GPD(m³/d)	Stable Desalination Rate %	Minimum Desalination Rate %
BW series (brackish water)	BW 8040-365/34	365(34)	41(600)	34	10500(40)	99.6	99.4
BW series (brackish water)	BW 8040-400/28	400(37)	41(600)	28	11500(43.5)	99.6	99.4
BW series (brackish water)	BW 4040-85/28	85(7.9)	41(600)	28	2450(9.3)	99.5	99.3

Testing Conditions:
Test pressure: 225 psi (1.55 Mpa)
Test solution temperature: 25°C
Test solution concentration (NaCl): 2000 ppm
Test solution pH value: 7.5
Recovery rate of a single membrane element: 15%

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 Conditions:

Operating Conditions	BW 8040-365/34	BW 8040-400/28	BW 4040-85/28
Maximum operating pressure	600 psi (4.14 MPa)	600 psi (4.14 MPa)	600 psi (4.14 MPa)
Maximum feed water flow rate	75 gpm (17 m³/h)	75 gpm (17 m³/h)	16 gpm (3.6 m³/h)
Maximum feed water temperature	45℃	45℃	45℃
Maximum SDI15 of feed water	5	5	5
Free chlorine concentration in feed water	＜0.1 ppm	＜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	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)	15 psi (0.1 MPa)

The BW series (brackish water) reverse osmosis membrane elements are mainly used for desalination of brackish water, suitable for surface water and low-salinity groundwater, can be used for purifying drinking water and preparing pure water in fields such as electronics and power generation. This reduces investment costs for related pumps, piping, containers, and other equipment, as well as the operational costs of the reverse osmosis system, thereby increasing economic benefits.

Selection Guide: