80 40 RO Membrane
Flow Rate: 9000 Gallons Per Day
Applied Pressure: 225 PSI
Dimensions: 40" x 8"
Replace: Every 24 months or as needed
Salt Rejection: 99.2%
Product Overview – 80 40 RO Membrane
The 8040 reverse osmosis membrane is designed for high-demand industrial water purification. It offers excellent flow rate, high salt rejection, and low operating pressure.
Key Parameters：
- Size: 8" × 40" (8040)
- Permeate flow: 9,000–10,500 GPD
- Rejection rate: up to 99.5%
- Operating pressure: 100–225 psi
- Compatible with all standard 8040 membrane housings
- 100% vacuum integrity tested
- Optional individual wet-testing available
- Shipped dry for extended storage stability
Suitable for brackish water, reclaimed wastewater, industrial process water, power plants, textiles, beverages, pharmaceuticals, and municipal water.
Key Features & Benefits
✅ High Rejection Performance
Removes over 99% TDS, organics, heavy metals, and colloids.
✅ Energy-Efficient Options (LP / ULP / XLP)
- ULP: Up to 30–40% lower pressure requirement
- XLP: Operation at only 100 psi, ideal for low-TDS water
- Reduced energy cost per ton of product water
✅ Fouling & Scaling Resistance
Advanced thin-film composite layer reduces clogging and extends membrane lifespan.
✅ Dry-Shipped for Longevity
Maintains performance even after 12–24 months storage.
✅ Industrial-Grade Stability
Performs reliably in food, pharmaceutical, beverage, power, textile, and electroplating industries.
80 40 RO Membrane Models & Specifications
Performance Comparison Table
| Model | Flow Rate (GPD / m³/d) | Salt Rejection | Operating Pressure | Recovery |
|---|---|---|---|---|
| 8040-LP | 10,500 GPD (40 m³/d) | 99.5% | 225 psi (15 bar) | 15% |
| 8040-ULP | 10,500 GPD (40 m³/d) | 99.2% | 150 psi (10 bar) | 15% |
| 8040-XLP | 10,500 GPD (40 m³/d) | 98.5% | 100 psi (7 bar) | 15% |
Testing Conditions
- NaCl: 1500–2000 ppm
- Temperature: 25°C (77°F)
- pH: 6.5–7.5
- Recovery: 15%
- Pressure: Model-specific (100–225 psi)
Operating Limits
| Parameter | Value |
|---|---|
| Max Temperature | 45°C (113°F) |
| Max Operating Pressure | 600 psi (41 bar) |
| Max Pressure Drop | 15 psi (1 bar) |
| Continuous pH Range | 3–10 |
| Short-term Clean pH (30 min)** | 2–12 |
| Max SDI | 5 |
| Free Chlorine Tolerance | <0.1 ppm |
How to Choose the Right 8040 Membrane (TDS-Based Guide)
| Feed Water TDS | Recommended Membrane |
|---|---|
| 0 – 2,000 ppm | ULP (Ultra Low Pressure) |
| 2,000 – 5,000 ppm | LP (Low Pressure) |
| 5,000 – 20,000 ppm | SW (Seawater Series) |
| >20,000 ppm | Requires customized design |
Ink-blue engineers can provide free technical selection within 12 hours.
About Ink-blue (Manufacturer Information)
Xi'an Ink-blue Environmental Protection Technology Co., Ltd. is a certified water treatment manufacturer with global project experience.
- Brand: Ink-blue
- Certifications: ISO9001, NSF, ASME, CE
- Engineering Team: Custom system design + on-site installation & technical guidance (for large projects)
- Response Speed:
Quotation: within 12 hours
CAD/Design drawings: within 48 hours
Fast, professional customer support
- OEM Capability: Customized LOGO, product design, and manufacturing per provided drawings
- Warranty: 2-year warranty + lifetime after-sales support
- Markets: Southeast Asia, Middle East, South Asia, Africa, South America, Europe
- Contact:
Email: sales@ink-blue.com
WhatsApp: +86-18302940580
- Main Products: FRP vessels, membrane housings, filter cartridges, RO plants
Certifications
ASME Certificate
CE Certificate
NSF Certificate
EMS Certificate
QMS Certificate
ISO 9001 Certificate
Customer Case Studies
🟦 Case 1: Textile Dyeing Plant – Bangladesh
TDS: 3,200 ppm
Model: 8040-LP
Output: 80 m³/day
Result: Energy cost reduced 18%, stable operation for 3 years.
🟦 Case 2: Municipal Well Water – Mexico
TDS: 1,800 ppm
Model: 8040-ULP
Result: Operating pressure dropped from 150 psi → 110 psi.
Annual electricity savings: $4,500.
🟦 Case 3: Metal Finishing Factory – UAE
TDS: 4,800 ppm + heavy metals
Model: 8040-LP
Result: Wastewater reuse increased by 60%, meeting discharge standards.
Ink-blue engineers supported design drawings and provided remote commissioning support.
FAQ
Q1: What is the size of an 80 40 RO membrane?
The membrane is 8 inches in diameter and 40 inches in length (standard 8040 size).
Q2: Can Ink-blue membranes replace DOW, Toray, and Hydranautics models?
Yes. They fit all standard 8040 pressure vessels.
Q3: What is the service life?
Typically 2–3 years, depending on feedwater quality.
Q4: Do you support OEM?
Yes. Logo printing, custom packaging, and custom engineering are available.
Q5: Do you provide design support?
Ink-blue engineers offer free selection, CAD drawings, and on-site service for large projects.
Q6: What is the warranty?
2-year warranty + lifetime technical support.
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