Vontron ULP21-2521
ULP series of ultra low pressure aromatic polyamide RO element is developed by VONTRON for treatment of surface water and underground water. Its operation pressure is about 2/3 of low pressure membrane, and the rejection rate can reach 99.5%. Thus it can reduce the investment cost of 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 and municipal water with TDS is less than 2000 ppm. It is mainly applied in bottle water, drinking water, boiler replenishment water, food processing and pharmaceutical manufacturing industries and other fields.
Membrane Specification
Vontron ULP21-2521 Membrane Elelment
Model: 21" (533.4mm) x 2.5" (61mm)
Active Membrane Area ft² (m² ): 14 (1.3)
Permeate Flow GPD(m³/d): 300 (1.13)
Stable Rejection Rate%: 99.0
Feed Spacer Thickness mil: 28
Test Condition
Operating pressure at 150 psi (1.03MPa)
Temperature at 25°C
Tested in 1500 mg/L NaCL solution
pH 7.0 ± 0.5
Recovery rate at 15%