8040 RO Membrane
Filtration accuracy: 0.0001 micron
Service life: 1-2 years
Salt rejection rate: 99.5%
Maximum water inlet temperature: 45°C
PH range: 2-11
Size: 8 inch*40inch (8040 model)
The High-Performance, Low-Pressure 8040 RO Membrane Solution
Struggling with high-pressure RO systems or inconsistent water quality? Our advanced 8040 RO membrane delivers reliable, high-purity water at lower operating pressures. This is a low-pressure desalination RO membrane element.
This polyamide composite membrane is designed for surface water and groundwater treatment, boasting low-pressure operation, high water yield, and excellent salt removal performance. It achieves a high water flux and desalination rate comparable to traditional low-pressure membranes. The membrane achieves a remarkable desalination rate of up to 99.5%.
With an 8-inch size, this desalination membrane is ideal for use in various processes in large and medium-sized chemical, pharmaceutical, food, power plants, electronic plants, and boiler water treatment. Additionally, it is well-suited for the desalination and purification treatment of municipal water sources.
Maximize Water Purity & Efficiency with Our 8040 RO Membrane.
8040 membrane specification
| Product Model | 8040 |
| Effective membrane area/ ft2 (m2) | 400(37.2) |
| Width of inlet channel (mil) | 31 |
| Water yield/ GPD(m3/d) | 10,500 (39.7) |
| Stable desalination rate (%) | 99.65 |
| Minimum desalination rate (%) | 99.5 |
| Maximum inlet temperature | 113°F(45℃) |
| Maximum operating pressure | 600psi(4.14MPa) |
| Maximum inlet flow | 75GPM(17m3/h) |
Core Specification description
Ultra-High 99.5% Salt Rejection
Ensure consistent, high-purity water output, meeting strict quality standards for critical processes like boiler feed, electronics manufacturing, and pharmaceutical production.
Low-Pressure Operation
Significantly reduce energy consumption and operating costs compared to standard membranes, leading to faster ROI.
High Water Flux (10,500 GPD)
Achieve greater water production capacity per membrane element, optimizing system design and potentially reducing the number of elements needed.
Proven Durability & Stability
Engineered for long service life and consistent performance in challenging water sources (surface water, groundwater).
Wide Compatibility
Designed to fit standard 8-inch pressure vessels, ensuring easy integration into existing or new RO systems.
Certifications
8040 Membrane vs. 4040 Membrane: Key Differences
| Comparison Dimension | 8040 Membrane | 4040 Membrane |
|---|---|---|
| Dimensions | Diameter: 8 inches (≈20.3 cm) Length: 40 inches (≈101.6 cm) |
Diameter: 4 inches (≈10.2 cm) Length: 40 inches (≈101.6 cm) |
| Water Treatment Capacity | High flux & capacity (e.g., Water yield: 10,500 GPD) |
Lower capacity Suited for small-scale applications |
| Typical Applications | Large-scale systems: • Seawater desalination • Industrial wastewater treatment • Municipal water plants • Chemical/power plants |
Small-scale systems: • Household water purifiers • Commercial water dispensers • Compact purification equipment |
| System Design Requirements | Requires 8-inch pressure vessels Large piping & pump systems |
Requires 4-inch pressure vessels Compact system design |
our casey
Ultrapure water system upgrade for electronics factory
Problem: The original RO membrane has an insufficient desalination rate (≤98%), causing the TOC (total organic carbon) in the chip cleaning water to exceed the standard, affecting the yield rate.
Solution:
Replaced with ink-blue 8040 RO membrane (99.5% desalination rate)
The system is matched with an 8-inch pressure vessel, and 6 membrane elements are configured in parallel
Results:
✅ The TOC of produced water is stable <5ppb, meeting the SEMI F63 ultrapure water standard
✅ The system operating pressure is reduced by 15%, saving about 120,000 kWh of electricity per year
✅ The membrane life is up to 36 months (the original membrane is only 24 months)
Municipal water plant surface water desalination project
Problem: The salinity of the water source fluctuates seasonally (up to 800 ppm), and the water production of traditional membranes is unstable.
Solution:
Use ink-blue Membrane 8040 low-pressure membrane (test conditions: 150psi, 25℃)
Single membrane produces 39.7m³/d of water, and the system is equipped with 72 membranes
Results:
✅ Desalination rate is stable ≥99.5%, and the outlet TDS is less than 50ppm
✅ Energy consumption is reduced by 20% compared with the old system (power consumption per ton of water is reduced to 1.8 kWh)
✅ Only 3 membranes were replaced within two years (failure rate <0.5%)
FAQ
Can the 8040 membrane be used for seawater desalination?
A: Conventional 8040 membranes are suitable for brackish water (TDS < 10,000 ppm); true seawater desalination requires a dedicated SW series high-pressure membrane
How to expand the capacity if the water output of a single 8040 membrane is insufficient?
A: Connect multiple membranes in parallel (e.g., 8 8040 membranes ≈ 8 tons/hour), and match the number of high-pressure pumps and membrane housings.
What industrial scenarios are suitable for 8040 membrane?
High-purity water demand areas: chip cleaning in electronics factories (TOC < 5ppb required), pharmaceutical ultrapure water 5 8
Large-scale water treatment systems: municipal water supply (daily output ≥ 1,000 tons), seawater desalination pretreatment 2 4
Industrial wastewater reuse: boiler feed water for chemical/power plants, water for food and beverage production
What are the price ranges of 8040 RO membranes?
The price range of Chinese brand 8040 RO membrane is $280-320/piece.
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