4040 RO Membrane Element for Industrial Reverse Osmosis Water Treatment
4040 RO Membrane Element for Industrial Reverse Osmosis Water Treatment

4040 RO Membrane Element for Industrial Reverse Osmosis Water Treatment

Introduction:The 4040 RO membrane element is a mainstream standard-size reverse osmosis membrane, widely used in small and medium industrial reverse osmosis water treatment systems. Compared with expensive imported RO membrane products with long delivery cycles, our factory’s alternative RO membrane strictly follows international standard dimensions and performance parameters, enabling direct replacement without modifying existing membrane vessels and water treatment equipment. The high-precision thin film composite polyamide desalination layer delivers stable and efficient desalination effect, while the reinforced membrane base material enhances chemical cleaning resistance and structural stability. It can adapt to long-cycle continuous industrial operation and is widely recognized by global water treatment contractors, EPC enterprises and industrial end users.

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If you are sourcing high-performance 4040 RO membrane element for industrial water purification and liquid filtration projects, our factory supplies full-series Liquid Filters, industrial hydraulic consumables including Hydraulic Filter, and professional reverse osmosis membrane elements for industrial reverse osmosis water treatment systems. This standard 4040 RO membrane adopts high-performance polyamide thin film composite material, specially designed for removing dissolved salts, heavy metal ions, colloids and organic contaminants from raw water. It features stable high salt rejection rate and large permeate water flux, perfectly matching medium and small-scale commercial and industrial water treatment projects. With excellent anti-fouling performance and stable long-term operation capability, it effectively reduces system maintenance frequency. As a cost-effective replacement spare part, it is fully compatible with standard 4-inch membrane housings, serving as the core purification component for industrial water desalination and pure water preparation.


Working Principle

4040-ro-membrane-working-principle

As the core core purification component of reverse osmosis water treatment equipment, the 4040 RO Membrane Element adopts pressure-driven membrane separation technology. Under the rated operating pressure of the RO system, raw water is pressed to penetrate the membrane surface. Harmful substances such as dissolved salts, heavy metal ions, macromolecular organic matter and suspended colloids are effectively intercepted on the membrane feed side, while pure water molecular groups smoothly pass through the membrane layer to form qualified permeate pure water. The intercepted concentrated pollutants are discharged with concentrated water. Matched with front-end liquid filters and precision pre-filtration systems, it can greatly reduce membrane surface pollution and delay fouling speed. Regular professional chemical cleaning can restore membrane flux and maximize the service life of the RO membrane element.


Technical Specifications

Item

Parameter

Part Number

4040 RO Membrane

Membrane Material

Thin film composite polyamide

Membrane Size

4 inch × 40 inch (Standard Industrial Size)

Typical Salt Rejection

99.2%

Permeate Flow Rate

2400 GPD

Max Operating Pressure

41 bar

Operating Temperature

5℃ ~ 45℃

Feed Water Turbidity

≤ 1 NTU

Operation pH Range

2 ~ 11

Cleaning pH Range

1 ~ 12


Core Advantages

4040-ro-membrane-core-advantages

1. Ultra-high stable desalination rate: 

The high-purity polyamide membrane layer ensures a stable salt rejection rate of up to 99.2%, effectively removing various dissolved salts and impurities to produce high-purity industrial pure water.

2. Large water flux & high efficiency: 

Optimized membrane pore structure increases water permeability, ensuring stable high water output under standard working pressure and improving the operational efficiency of the entire water treatment system.

3. Excellent anti-fouling performance: 

The smooth hydrophilic membrane surface effectively reduces the adhesion of colloids, organic matter and microorganisms, lowers fouling probability, and reduces cleaning and maintenance costs.

4. Standard universal size: 

Strictly compliant with international 4040 industry standards, perfectly compatible with all mainstream 4-inch RO membrane housings, realizing plug-and-play replacement with no equipment modification required.

5. Cost-effective & fast delivery: 

As a direct factory supplier, we provide equivalent high-quality replacement membranes, with more competitive prices and shorter delivery cycles than imported branded products.


Application Scenarios

Small and medium industrial pure water and ultra-pure water production

Food, beverage and daily chemical production process water purification

Boiler feed water, circulating water and industrial water softening treatment

Brackish water desalination and underground raw water purification for industrial parks

Commercial drinking water equipment and community water supply treatment

Electroplating, electronics and chemical wastewater recycling pretreatment


FAQ

Q1: Is this 4040 RO membrane compatible with all standard 4-inch membrane housings?

A1: Yes, it adopts international standard 4040 size and interface design, which can be directly installed and replaced in all mainstream 4-inch RO membrane vessels without any modification.

Q2: What is the standard service life of the 4040 RO membrane element?

A2: Under qualified front-end pre-filtration treatment and regular standardized maintenance, the service life can reach 2-3 years, with stable water production and desalination performance.

Q3: What pre-filtration equipment is matched with RO membrane to extend service life?

A3: It is recommended to configure multi-media filters, activated carbon filters and high-flow liquid filters as front-end protection to intercept particulate impurities and reduce membrane fouling.

Q4: Can you provide a complete set of RO water treatment system solutions?

A4: Yes, we support one-stop customization of RO water treatment equipment, matching membrane elements, filter housings and supporting filter consumables.

Q5: Is small batch trial order acceptable?

A5: We support sample testing and small-batch trial orders, welcome to contact our sales team for the latest factory quotation and delivery time.


Related Products

8040 RO Membrane Element 

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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