Vontron Low Pressure Reverse Osmosis Membrane,
Vontron ULP11-4040 2,800 gpd RO membrane is an ultra-low pressure polyamide compound membrane element.
This world class ultra-low-pressure 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 higher silt density index may require additional treatment. It operates under approximately 2 thirds of the operating pressure of 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.
This low-pressure reverse osmosis membrane is suitable for water purification applications of water sources with salt concentration lower than 2000 ppm, such as surface water, underground water, tap water and municipal water, etc. ULP11-4040 membrane elements are ideally suited for commercial applications such as pure water boiler water feed, food processing, spot free rinse applications including window cleaning and pharmaceutical production.
Specification ULP21-4040
- 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.Feed water Flow: 16 gpm (3.6 m3/h)
- Max. Feed water Temperature: 45C
- Max. Feed water SDI: 5
- Residual chlorine Concentration of Feed Water: <0.1ppm
- pH Range of Feed water during Continuous Operation: 3~1
- pH Range of Feed water during Chemical Cleaning: 2~12
- Max. Pressure Drop of Single Membrane Element: 10psi (68 kPa)
Vontron ULP21-4040, 4-inch x 40-inch Low Pressure Reverse Osmosis Membrane
Vontron ULP21-4040 ultra-low-pressure membrane delivers high permeate flows and salt rejection at lower raw water pressures, compared to regular low-pressure membrane elements. The high salt rejection and low working pressure result in up to 30% lower energy consumption compared to standard elements.
Vontron ULP 4040 series of low-pressure membrane element is based on a 10.3 bar (150 PSI) test pressure.
Product Specifications:
Salt Rejection: 99%*
Permeate Flow: 2400 gpd (9.1 m³/day) *
Membrane Area: 90 ft².
Diameter / Length: 4 inch / 40 inch.
*Test conditions: 1500 mg/l NaCl, 10.3 bar (150 psi), 25 °C (77 °F), pH 7.5, recovery rate 8%.
*Pre-treatment must be used to protect the membrane (softener, antiscalant dosing pump, sand filter, carbon filter, 5 mic cartridge filter ...etc.).
Vontron ULP 4040 membrane is suitable for water purification applications of water sources with salt concentration lower than 2000 ppm, such as surface water, underground water, tap water and municipal water.
Commercial Application:
- Drinking water.
- Softened water for homes, hotels, commercial laundries and car wash.
- Spot free rinse for window cleaning and solar panel cleaning
- Pure water for pharmaceuticals, laboratories, Hemodialysis and electronics
- Sterilizers and autoclaves.
- Chemical industry.
- Aquarium water treatment.
- Boiler and cooling towers make-up water.
- Pure water, boiler water replenishment, foodstuff processing, and pharmaceutical production.
Compatible with reverse osmosis membrane types: *
Filmtec BW LE-4040 / Lanxess B085 LE 4040 / GE Desal AG4040 / Hydranautics ESPA2-LD-4040 / Toray / CSM RE4040-BLN / Axeon HF1 4040
*Check the data sheet for each membrane.
Operation Conditions:
Max. working pressure: 600 psi (4.14MPa)
Max. Feed water flow: 16 gpm (3.6 m3/h)
Max. Temperature of Feed water: 45℃
Max. Feed water SDI15: 5.
Max. Feed Water Total Hardness: 10 ppm (softener or antiscalant should be used).
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 drops of single membrane element: 15psi (0.1MPa)
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 Deionizing stage may be required)