ULP Series: Ultra-Low Pressure RO Element
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Product Description
Brief Introduction
ULP series of ultra low pressure aromatic polyamide RO element is developed by VONTRON fortreatment of surface water and underground water. Its operation pressure is about 2/3 of lowpressure membrane, and the rejection rate can reach 99.5%. Thus it can reduce the investment costof related pumps, pipelines, containers and other equipments and the operation cost of RO system,improve economic benefits.
ULP series RO element normally suitable for treatment of surface water, underground water andmunicipal water with TDS is less than 2000 ppm. It is mainly applied in bottle water, drinkingwater, boiler replenishment water, food processing and pharmaceutical manufacturing industriesand other fields.
Scope of Application
LP series is normally suitable for treatment of brackish water, surface water, underground water and municipal water with TDS is less than 10000 ppm. It is mainly used for producing various scales of bottle water, drinking water, industrial used pure water, high purity water, boiler replenishment water, also for wastewater reuse, material concentration, purification and refining purposes.
| model |
Area |
Capacity GPD m³/d |
Desalination Rate % |
| |
| ft² (m2) |
| |
| ULP21-4040 |
100(9.3) |
2600(9.8) |
99.5 |
| ULP31-4040 |
100(9.3) |
2000(7.6) |
99.6 |
| ULP21-4021 |
36(3.3) |
950(3.6) |
99 |
| ULP21-2521 |
14(1.3) |
300(1.1) |
99 |
| ULP21-2540 |
30(2.8) |
750(2.8) |
99 |
Testing Conditions
Operating pressure 150 psi (1.03MPa)
Temperature at 25ºC
Tested at 1500mg/L NaCl solution
pH 7.0 ± 0.5
Recovery rate at 8%
Operation Limits&Conditions
Maximum operating pressure 600psi(4.14MPa)
Maximum feedwater flow 16gpm(3.6m3/h)
Maximum feedwater temperature 45ºC
Maximum feedwater flow SDI15 5
Allowed pH range for feedwater in operation 3~10
Allowed pH range for chemical cleaning 2~12
Maximum concentration of free chlorine <0.1ppm
Maximum pressure drop per element 15psi(0.1MPa)
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