Fujian Huamo Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of ulp4040 ro membrane for tap water in China. If you're going to wholesale bulk ulp4040 ro membrane for tap water 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
ULP4040 RO membrane for tap water achieves exceptionally high desalination efficiency at lower operating pressures, effectively reducing energy consumption while maintaining a stable permeate flow rate The standard 4x40 size of reverse osmosis membranes is compatible with most membrane housings on the market, simplifying the installation and replacement processes. The ULP series RO membranes demonstrate exceptional adaptability across applications such as purified water production, boiler feedwater supply, and reclaimed water reuse. RO membrane for tap water represents one of the application areas in water treatment.
As China's largest manufacturing base for reverse osmosis membranes, we do not rely on imported raw materials and are therefore unaffected by fluctuations in international logistics. Our facility is equipped with a total of eight automated production lines: six are dedicated to manufacturing the 8040 model, with a daily output of 600 units; the remaining two are dedicated to the 4040 model, with a daily output of 300 units.
Video Description
Product Showcase: ULP4040 RO membrane for tap water. We conduct random spot checks on finished products-primarily monitoring two key indicators: water flux and salt rejection rate-to ensure that the products meet established standards.
Product Specifications
Model | ULP4040 |
Active Area of RO Membrane | 78ft2 (7.2m2) |
Reerse Osmosis Membrane Stabilized Salt Rejection | 99.3% |
Reerse Osmosis Membrane Minimum Salt Rejection Rate | 99% |
Reerse Osmosis Membrane Pure Water Flow Rate | 2250gpd (8.7m3 /d) |
- Individual elements may exhibit permeate flow variations of up to ±15%.
- Active membrane surface area may vary within ±4%.
- Optimal salt rejection is typically achieved after 24–48 hours of continuous operation, influenced by feed water quality and operating conditions.
Dimension
A, mm(in.) | 1,016 (40) |
B, mm(in.) | 201 (7.95) |
C, mm(in.) | 29 (1.125) |
Weight(kg) | 3.38 |

Product Advantages
- ULP4040 RO membrane for tap water delivers exceptional performance even at lower operating pressures; recommended operating pressure is 150 PSI, with a minimum operating pressure of 15 PSI and a maximum operating pressure of 600 PSI
- Efficiently removes dissolved salts, organic compounds, and heavy metals, with a consistent desalination rate of 99.3%
- Durable and long-lasting, under the feed water and operating conditions specified for the reverse osmosis membrane, the replacement cycle is typically every 2–3 years, reducing the need for frequent cleaning.
- The optimized membrane structure enables increased permeate flux, delivering a nominal production capacity of up to 2,250 gallons per day.
Why Choose Us
HUAMO specializes in the development of reverse osmosis membranes and nanofiltration membranes, as well as seawater desalination RO membranes-producing water filtration membranes suitable for a wide range of industrial applications. HUAMO provides membrane solutions for a wide range of industrial and municipal applications, including chemical and petrochemical processing, power generation, municipal water treatment, food and beverage, oil and gas, textile manufacturing, and pulp and paper. Customized solutions are developed to address specific process requirements and operating conditions.
With an established manufacturing network comprising more than 20 production facilities and 40 service branches, HUAMO combines scalable production capacity with localized technical support. Our experience in membrane manufacturing enables consistent product performance across diverse applications.

Quality assurance is integrated throughout the entire production cycle-from raw material qualification and formulation control to precision manufacturing and final inspection-ensuring reliable and repeatable performance in demanding environments.
A centralized warehousing system, including a 5,000 m² primary facility, supports efficient inventory management and responsive delivery. Standard lead time for full container orders is typically 10–15 days.


FAQ
Q1: What are the primary indicators for membrane cleaning or replacement?
A: System performance should be monitored for "normalized" flow rates. Chemical cleaning (CIP) is generally required when the normalized permeate flow drops by 10% or the pressure drop increases by 15%. If performance cannot be restored through cleaning, or if salt passage increases significantly, the elements should be replaced, typically every 2 to 3 years depending on feed water quality.
Q2: Do you support custom branding or private labeling?
A: Full OEM services are available for established distributors and system integrators. This includes customized nameplates, specialized packaging, and technical documentation tailored to specific regional or project requirements.
Q3: Can I directly replace the reverse osmosis membrane elements I was using from another brand? Will they be incompatible with my membrane housing?
A: Our reverse osmosis membrane elements are manufactured according to international standard dimensions. If you still have concerns, please send us a photo of your existing membrane elements, and we will help you check if they can be replaced.
Q4: Is the ULP4040 compatible with existing RO systems?
A: Yes. The ULP4040 follows international standard dimensions (4 inches in diameter and 40 inches in length), making it a direct drop-in replacement for any standard 4040 housing. However, it is recommended to verify that the system's high-pressure pump is adjustable to accommodate the lower operating pressure requirements of the ULP series.
Q5: How should I store the reverse osmosis membranes I bought if I'm not using them immediately?
A: Our reverse osmosis membranes are treated with a protective solution and vacuum-packed at the factory. Do not open the packaging before use. Store them according to the following requirements:
Temperature: Optimal 5~10℃, do not exceed 35℃, and prevent freezing.
Environment: Cool, dry, away from light, and well-ventilated.
Stacking: Do not stack the packaging boxes more than 5 layers high, and keep the cardboard boxes dry.





