4040 Industrial RO Membrane
This world-class 4040 industrial ro membrane delivers high permeate flows and salt rejection at lower raw water pressures, compared to regular low-pressure membrane elements. Suitable for brackish and bore water, however, a higher silt density index may require additional treatment. It operates under approximately 2 thirds of the operating pressure of a regular low-pressure composite membrane and achieves a salt rejection rate of up to 98.0%. The lower energy requirement decreases the equipment cost in particular pump rating and pressure rating of the membrane housing.

Active Membrane Area ft2(m2) Average Permeate GPD(m3/d) Stable Rejection Rate % Min. Rejection Rate %
90 (8.4) 2400 (9.1) 99.0 98.5

4040 Industrial Membrane Housing

TESTING CONDITIONS
Testing Pressure……. 150 psi (1.03Mpa)
Testing Solution Temperature……. 25 ℃
The concentration of Testing Solution (NaCl)……. 1500ppm
pH value of Testing Solution……. 7.5
Recovery Rate of Single Element……. 15%
OPERATION LIMITS & CONDITIONS
Max. Working Pressure……. 600psi（4.14Mpa)
Max. Volume of Feedwater…… 16gpm（3.6 m3/h)
Max. Temperature of Feed-water……. 45℃
Max. Feed-water SDI15……. 5
pH Range of Feed Water during Continuous Operation……. 3～10
pH Range of Feed Water during Chemical Cleaning……. 2～12
Residual Chlorine Concentration of Feed Water……. ＜0.1ppm
Max. Pressure Drop of Single Reverse Osmosis Membrane Element……. 15psi（0.1Mpa)
Max. Pressure Drop of Single Pressure Vessel with Six RO Membranes……. 50psi（0.34Mpa）
Specification ULP11-4040

Stable Rejection Rate: 98.0%
Minimum Rejection Rate: 97.5%
Average Permeated Flow: 2,800 gpd (9.1 m3/d)
Active Membrane Area: 85 ft2
Size: 4″ x 40 “
Operating Conditions

Max.Working Pressure: 600 psi
Max.Feedwater Flow: 16 GPM (3.6 m3/h)
Max. Feedwater Temperature: 45C
Max. Feedwater SDI: 5
Residual chlorine Concentration of Feed Water: <0.1ppm
pH Range of Feedwater during Continuous Operation: 3~1
pH Range of Feedwater during Chemical Cleaning: 2~12
Max. Pressure Drop of Single Membrane Element: 10psi( 68 kPa)
Commercial Applications

Drinking water for restaurants
Drinking water vending machines
Aquarium water treatment
Softened water for homes, hotels, commercial laundries, and car wash.
Post-treatment of deionized water
Pure water for pharmaceuticals, laboratories, and electronics
Hemodialysis
Oil/water separation
Spot free rinse – window and solar panel cleaning
Sterilizers and autoclaves ( additional Deionising stage may be required)