Fujian Huamo Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of bw4040 industrial ro membrane in China. If you're going to wholesale bulk bw4040 industrial ro membrane made in China, welcome to get catalog and price list from our factory. All custom made products are with high quality and competitive price. Also, OEM service is available.
Product Details
The BW4040 industrial RO membrane is a 4 inch brackish water RO membrane element used in industrial and commercial reverse osmosis systems handling feed water with moderate salinity. It operates under higher pressure conditions than low-pressure membrane types and supports stable salt rejection and permeate flow in systems designed for brackish water treatment.
We supply the BW4040 RO membrane to system integrators, equipment manufacturers, distributors, and project contractors requiring a consistent 4040 RO membrane element for industrial use. Under standard test conditions, it delivers a stabilized salt rejection of 99.6%, a minimum salt rejection of 99.4%, and a permeate flow rate of 2050 gpd (7.8 m³/d).
Applications of BW4040 Industrial RO Membrane
The BW4040 brackish water RO membrane is widely used in industrial and commercial water treatment systems, including:
- Industrial reverse osmosis water treatment systems
- Brackish water desalination systems
- Boiler feed water treatment
- Textile and dyeing industry water purification
- Electronics manufacturing water systems
- Food and beverage processing water treatment
- Municipal and commercial water reuse systems
- OEM water treatment equipment manufacturing
This model is suitable for projects requiring stable desalination performance under medium salinity feed water conditions.
Video Description
This video presents the complete production process of reverse osmosis membrane elements, including membrane sheet assembly, rolling, bonding, and final inspection. It also shows the packaging procedure to ensure proper protection during storage and transportation, along with the compatible FRP pressure vessels used for installation in RO systems.
Product Specifications
Model | Reverse Osmosis Membrane BW4040 |
Permeate Flow Rate | 2050 gpd (7.8 m³/d) |
Feed Water Pressure (Test Condition) | 1.55 MPa (225 psi) |
Feed Water Temperature (Test Condition) | 25°C (77°F) |
Feed Water Concentration (Test Condition) | 2,000 ppm NaCl |
Feed Water pH (Test Condition) | 8 |
Active Membrane Area ft2(m2) | 78 ft² (7.2 m²) |
Stabilized Salt Rejection % | 99.6 |
Minimum Salt Rejection % | 99.4 |
Maximum Operating Pressure | 41 bar (600 psi) |
Maximum Operating Temperature | 45°C (113°F) |
Maximum Feed Silt Density Index (SDI15) | 5.0 |
Our Advantages
Certified Production and Compliance
We operate with relevant industry certifications that support the manufacturing and export of industrial RO membrane products. These certifications provide customers with a clear reference when selecting a RO membrane supplier, and help ensure that each 4040 RO membrane meets applicable quality and compliance standards for international and industrial applications.
Complete In-House Production Line
Our facility is equipped with a full production line covering key processes such as membrane sheet preparation, rolling, bonding, assembly, and performance testing. By managing the entire process in-house, we maintain consistency across each BW4040 Industrial RO membrane and other 4040 RO membrane elements, ensuring stable product performance and controlled production quality for different customer requirements.
Large Warehouse and Stable Supply Capacity
We maintain a large warehouse for finished products and core materials, allowing us to support bulk orders and maintain stable supply. This enables us to respond efficiently to customers sourcing industrial RO membrane products, reduce delivery time, and provide reliable fulfillment for distributors and project-based procurement.
FAQ
Q: What type of water is this membrane suitable for?
A: --It is designed for brackish water treatment, where feed water salinity is higher than tap water but lower than seawater.
Q: What is the difference between stabilized and minimum salt rejection?
A: --Minimum salt rejection represents the lower guaranteed value, while stabilized salt rejection reflects performance after the membrane has operated continuously and reached stable conditions.
Q: Is pretreatment required?
A: --Yes. Feed water should meet requirements such as SDI ≤ 5.0 and free chlorine < 0.1 ppm to maintain membrane performance.
Q: How long does it take to reach stable performance?
A: --Salt rejection typically stabilizes after 24–48 hours of continuous operation.