LF‑XULP‑4040 Ultra‑Low‑Pressure RO Membrane Element For Community Pure‑Water Station

For small‑scale tap‑water desalination projects, our Oil Filtration Machine supporting water‑treatment consumable LF‑XULP‑4040 RO membrane element solves high‑electric‑cost pain point caused by conventional RO membrane. Traditional Reverse Osmosis membrane element demands high driving pressure and brings continuous high pump energy‑loss. LEFILTER LF‑XULP‑4040 energy‑saving RO membrane filter adopts ultra‑thin hydrophilic polyamide material, stable water production can be achieved only under 0.69 MPa operating pressure. This Reverse Osmosis membrane is widely matched with pre‑treatment UF membrane module to reduce organic fouling risk. View all water‑treatment consumables via Water Filter Element. Security pre‑filter can select High Flow Filter Cartridge.

Energy‑Saving Working Principle Of LF‑XULP‑4040 RO Membrane Element

Low‑TDS municipal tap‑water flows tangentially across LF‑XULP‑4040 RO membrane surface under ultra‑low driving pressure. The modified thin‑film polyamide layer of this Reverse Osmosis membrane improves water‑molecule permeability greatly. Salt ions, heavy‑metal ions and colloidal impurities are intercepted on the surface of RO membrane filter and discharged with concentrated water. Smooth surface design of Reverse Osmosis membrane element lowers organic adhesion rate, extends chemical‑cleaning cycle and cuts OPEX for small‑size drinking‑water stations.

Core Technical Parameters

• Membrane Material: Ultra‑thin high‑flux polyamide for RO membrane filter

• Stable Salt Rejection of Reverse Osmosis membrane: ≥98.5%

• Standard Test Pressure of RO membrane element: 0.69 MPa (100psi)

• Applicable Raw‑Water TDS: ≤500 ppm tap‑water for RO membrane

• Matching Pre‑Treatment: Standard UF membrane module

Each LF‑XULP‑4040 Reverse Osmosis membrane element completes flux‑stability and salt‑rejection inspection before delivery, fits standard 4‑inch pressure vessels matched with High Flow Filter Cartridge.

4 Core Advantages For Small‑Size Pure‑Water Projects

1 Significant Pump‑Power Saving
Ultra‑low‑pressure design reduces long‑term electricity expense of RO membrane filter system.

2 Reliable Stable Flux Output
Optimized polyamide guarantees steady water yield of Reverse Osmosis membrane element.

3 Mild Anti‑Fouling Surface Property
Reduce organic dirt accumulation on RO membrane.

4 Universal 4‑Inch Industry Dimension
Direct installation for existing small pure‑water equipment using Reverse Osmosis membrane.

Application Scenarios

LF‑XULP‑4040 RO membrane is preferred RO membrane element for community drinking‑water stations and laboratory pure‑water equipment. Cooperate with UF membrane module to build low‑cost tap‑water desalination system.

Full Model List

Full Model No.	Specification Introduction
LF‑XULP‑4021	Small‑size lab‑use RO membrane, daily water output 3.8 cubic meters
LF‑XULP‑4040	Standard 4‑inch Reverse Osmosis membrane element, 7.6 tons daily flux
LF‑XULP‑8040	8‑inch large‑flow RO membrane filter, 39.7 cubic‑meter daily capacity

Other Related Products

LF‑ULP‑4040 Low‑Energy RO Membrane Element

FAQ

Q1 What raw‑water condition suits LF‑XULP‑4040 RO membrane filter?
A1 Tap‑water with TDS ≤500 ppm; it is not fit for seawater high‑salinity Reverse Osmosis membrane element.

Q2 Is UF membrane module necessary before this RO membrane?
A2 Yes, ultrafiltration intercepts colloids to protect Reverse Osmosis membrane against fast fouling.

Q3 What is the standard operating pressure for LF‑XULP‑4040 RO membrane element?
A3 Standard operating pressure is only 0.69 MPa, much lower than conventional RO membrane filter.

Q4 Can LF‑XULP‑4040 directly replace other brand 4040‑size Reverse Osmosis membrane?
A4 Same outer dimension, direct installation into standard pressure vessel without modification.

Q5 How often shall we perform chemical cleaning for this RO membrane element?
A5 Depends on raw‑water quality; normally perform cleaning when ΔP rises 15‑20% of initial value.