Description
The Vontron ULP21-2540 reverse osmosis membrane is a premium ultra-low pressure 2.5-inch RO membrane designed for commercial and light industrial water purification systems. It delivers a high permeate flow of up to 750 GPD (2.84 m³/day) while providing excellent salt rejection at relatively low operating pressure.
The ultra-low pressure design helps reduce energy consumption and operating costs while maintaining reliable purification performance. Manufactured using advanced thin-film composite (TFC) technology, the ULP21-2540 is suitable for treating municipal water, borehole water, surface water, and other low-salinity feed water sources.
The membrane is ideal for drinking water systems, bottled water production, food processing, pharmaceutical applications, boiler feed water, and other commercial water purification requirements.
Features:
- Ultra-low pressure operation for improved energy efficiency.
- High permeate flow of up to 750 GPD.
- Excellent salt rejection for high-quality purified water.
- Advanced thin-film composite (TFC) membrane technology.
- Designed for feed water with TDS below 2,000 ppm.
- Helps reduce RO system operating costs.
- Suitable for commercial and light industrial applications.
- Reliable and consistent purification performance.
- Long service life when operated with suitable pre-treatment.
- Suitable for compatible 2540 membrane housings.
Specifications:
- Model: Vontron ULP21-2540
- Membrane type: Ultra-low pressure reverse osmosis (RO)
- Membrane construction: Thin-film composite (TFC)
- Active membrane area: 30 ft² (2.8 m²)
- Average permeate flow: 750 GPD (2.84 m³/day)
- Stable rejection rate: 98.0%
- Minimum rejection rate: 98.5%
- Recommended feed water TDS: Less than 2,000 ppm
Testing conditions:
- Testing pressure: 150 psi (1.03 MPa)
- Temperature of testing solution: 25°C
- Testing solution concentration: 1,500 ppm NaCl
- pH value of testing solution: 7.0 ± 0.5
- Recovery rate of single membrane element: ±20%
Operating limits & conditions:
- Maximum working pressure: 600 psi (4.14 MPa)
- Maximum feed water flow: 1.4 m³/h (6 GPM)
- Maximum feed water temperature: 45°C
- Maximum feed water SDI: 5
- Residual chlorine concentration of feed water: <0.1 ppm
- pH range during continuous operation: 3–10
- pH range during chemical cleaning: 2–12
- Maximum pressure drop per membrane element: 15 psi (0.1 MPa)
- Maximum pressure drop per pressure vessel with six RO membranes: 50 psi (0.34 MPa)
Applications:
- Commercial reverse osmosis systems
- Drinking water purification
- Bottled water production
- Municipal water treatment
- Borehole water treatment
- Surface water purification
- Food and beverage processing
- Pharmaceutical water production
- Boiler feed water
- Light industrial water treatment
- Commercial water purification systems
Why choose the ULP21-2540 reverse osmosis membrane?
- 750 GPD permeate capacity provides high water production from a compact 2.5-inch membrane.
- Ultra-low pressure operation helps reduce energy consumption and operating costs.
- 98.0% stable salt rejection provides consistently high-quality purified water.
- TFC membrane technology delivers reliable and efficient RO performance.
- Suitable for feed water TDS below 2,000 ppm.
- Compact 2540 format is ideal for commercial and light industrial RO systems.
- Suitable for a wide range of drinking water and industrial applications.
- Long service life when correctly installed, pre-treated, and maintained.
- A practical solution where high water production and energy efficiency are important.
