ULP22-2540 High Flux Low Pressure RO Membrane Element For Commercial Water Treatment
Introduction:If you are searching for high-flux RO membrane replacement for small commercial water treatment projects, our factory provides reliable Liquid Filters, Self Cleaning Filter and full range of RO membrane elements, including ULP22-2540 high flux low pressure RO membrane. This 2540 size polyamide thin film composite membrane delivers higher permeate flux while maintaining excellent salt rejection under low operating pressure. It efficiently removes dissolved salts, silica, colloids and organic contaminants from well water and surface raw water. It acts as a premium alternative to imported RO membrane products, perfectly matching compact RO skids and helping water treatment contractors boost water output without extra high energy investment.
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Product Introduction
ULP22-2540 high flux low pressure RO membrane is a core member of our ULP series reverse osmosis membrane family, optimized for commercial water treatment systems that demand higher water production capacity. This 2.5 inch × 40 inch element upgrades the membrane sheet formula compared with standard ULP21-2540 model, bringing significantly increased permeate flux under the same operating pressure. For stable long-run performance, pretreatment units such as Liquid Filters, Self Cleaning Filter are essential to block suspended solids and sediment before raw water enters the membrane housing, preventing premature membrane fouling. Many conventional imported low-flux RO membranes limit water yield and force users to add extra membrane vessels. Our ULP22-2540 solves this pain point, producing more pure water with fewer membrane elements. It serves as a drop-in replacement for standard 2540 membrane housings, convenient for system integrators and end-users to upgrade existing water treatment systems.
Working Principle
ULP22-2540 RO membrane works on reverse osmosis separation mechanism. Under proper driving pressure, water molecules pass through the dense polyamide thin composite membrane layer, while dissolved salts, heavy metal ions, colloidal particles and large organic molecules get trapped on the feed side of the membrane surface. The upgraded membrane material enhances hydrophilicity and water permeability, achieving higher flux without sacrificing salt rejection. The optimized membrane surface structure reduces the adhesion of organic pollutants, extends running time between CIP cleaning cycles and cuts the overall maintenance workload of the water treatment system.
Technical Specifications
| Item | Parameter |
|---|---|
| Model | ULP22-2540 |
| Membrane Type | High Flux Low Pressure Brackish Water RO Membrane |
| Dimension | 2.5 inch × 40 inch |
| Active Membrane Area | 28 sq.ft |
| Test Pressure | 100 psi (0.69 MPa) |
| Permeate Flow Rate | 950 GPD |
| Stabilized Salt Rejection | 99.0% |
| Maximum Operating Pressure | 300 psi |
| Operating Temperature Range | 5 – 45 ℃ |
| pH Range (Continuous Operation) | 2.0 – 11.0 |
| Maximum Feed TDS | 5000 ppm |
| Feed Water SDI Requirement | ≤3 |
Core Advantages
High Permeate FluxOptimized membrane sheet achieves higher water output at low operating pressure. It helps users increase pure water production without upgrading high-pressure pumps or adding extra membrane housings.
Stable Salt Rejection PerformanceEven with enhanced flux, the membrane keeps consistent salt rejection performance, effectively removing dissolved minerals to meet commercial pure water standards.
Direct Drop-in ReplacementStandard 2540 physical size, fully compatible with common 2.5-inch membrane housings. No modification required when replacing old 2540 RO elements.
Improved Anti-fouling PropertyHydrophilic modified membrane surface reduces the attachment of colloids and organic contaminants, lowering chemical cleaning frequency and reducing system downtime.
Cost-effective Upgrade SolutionCompared with premium imported high-flux RO membranes, ULP22-2540 provides equivalent filtration performance at a more competitive price, helping EPC companies and distributors control project costs.
Application Scenarios
Commercial well water purification for drinking water
Small factory pure water preparation for light industry
Food and beverage auxiliary water treatment
Compact RO skids for commercial building water supply
Raw water pre-treatment for wastewater reuse projects
FAQ
Q1: What is the difference between ULP22-2540 and ULP21-2540?
A1: ULP22-2540 features higher permeate flux while maintaining slightly lower salt rejection. It is ideal for projects that prioritize higher water output with good feed water quality.
Q2: Can ULP22-2540 replace imported 2540 RO membrane?
A2: Yes. It has identical physical dimensions and connection structure, supporting direct replacement for standard 2540 membrane housings.
Q3: What pretreatment should be equipped to protect this RO membrane?
A3: Raw water SDI needs to be controlled ≤3. Liquid Filters and Self Cleaning Filter are widely adopted as pretreatment to capture solid particles and protect membrane elements.
Q4: What is the expected service life of ULP22-2540?
A4: With proper pretreatment and standard operation, the normal service life reaches 2–3 years. Poor raw water quality will shorten membrane service life.
Q5: How to carry out chemical cleaning for fouled ULP22-2540 membrane?
A5: Perform CIP cleaning according to pollutant categories. Acid cleaning for inorganic scaling and alkaline cleaning for organic and biological fouling.
Related Products
Anti‑Fouling RO Membrane for Wastewater Reuse Treatment
High Salt Rejection RO Membrane for Brackish Water Treatment
Custom Reverse Osmosis Membrane for Water Treatment Solution
Low Pressure RO Membrane for Commercial Water Treatment Unit
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