LG Chem NanoH2O BW 4040 R RO Membrane
LG Chem NanoH2O BW 4040 R RO Membrane
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High-Rejection Brackish Water RO Membrane for Commercial Applications
The LG Chem NanoH2O BW 4040 R is a high-performance brackish water reverse osmosis membrane designed for commercial and light industrial water treatment systems. Engineered for high salt rejection, strong fouling resistance, and long-lasting durability, this membrane delivers reliable permeate quality even in demanding operating conditions.
Ideal for commercial RO plants, industrial process water treatment, drinking water applications, and medium-capacity purification systems.
🫗 Quick Highlights
- 4040 commercial brackish water RO membrane
- High salt rejection up to 99.6%
- 2,500 GPD permeate flow capacity
- Good fouling resistance
- Durable and reliable long-term performance
- Suitable for commercial and industrial RO systems
- Compatible with standard 4-inch pressure vessels
- NSF/ANSI/CAN Standard 61 certified
- Designed for high permeate water quality
- Suitable for challenging feed water conditions
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- Low pH
- Non Hazardous
- GST Invoice Available

💧 Key Benefits
- High salt rejection performance
- Good fouling resistance for stable operation
- Durable membrane construction
- Consistent high-quality permeate water
- Reliable long-term membrane performance
- Suitable for commercial and industrial applications
📌 Technical Properties
- Brand: LG Chem NanoH2O
- Model: BW 4040 R
- Membrane Type: Brackish Water RO Membrane
- Permeate Flow Rate: 2,500 GPD (9.5 m³/day)
- Stabilized Salt Rejection: 99.6%
- Minimum Salt Rejection: 99.3%
- Active Membrane Area: 85 ft² (7.9 m²)
- Feed Spacer Thickness: 28 mil
- Maximum Operating Pressure: 600 psi (41.3 bar)
- Maximum Chlorine Concentration: < 0.1 ppm
- Maximum Operating Temperature: 45°C (113°F)
- Continuous pH Range: 2 – 11
- Cleaning pH Range: 2 – 12
- Maximum Feed Water Turbidity: 1.0 NTU
- Maximum Feed Water SDI₁₅: 5.0
- Maximum Feed Flow: 16 GPM (3.6 m³/h)
- Maximum Pressure Drop Per Element: 15 psi (1.0 bar)
- Certification: NSF/ANSI/CAN Standard 61
📏 Dimensions
- Element Length (A): 1,016 mm (40 inch)
- Element Diameter (B): 100 mm (3.9 inch)
- Core Tube I.D. (C): 19 mm (0.75 inch)
- Core Tube Extension (D): 29 mm (1.1 inch)
- Wet Weight: 4.0 kg (8.8 lbs)
🌊 Applications
- Commercial RO Plants
- Industrial Process Water Treatment
- Drinking Water Systems
- Food & Beverage Industry
- Light Industrial Applications
- Brackish Water Treatment
- Packaged Drinking Water Plants
- General Commercial Water Purification
📋 Operating Guidelines
- Maintain SDI below recommended limits
- Remove residual chlorine before membrane exposure
- Avoid excessive pressure drop across the membrane
- Use proper pretreatment for fouling prevention
- Follow recommended cleaning procedures and pH limits
- Store membrane properly if system shutdown is prolonged
💭 Reasons to choose
The NanoH2O BW 4040 R membrane offers an excellent balance of high rejection, durability, and fouling resistance, making it a dependable solution for commercial and industrial RO systems requiring stable water quality and long-term operational reliability.
FREQUENTLY ASKED QUESTIONS
Do you provide installation services?
Yes. We install RO plants, softeners, iron removal filters, ETP/STP systems, and all types of domestic & industrial water treatment plants across India.
Do you offer GST invoices?
Yes. Every order comes with a100% GST-compliant invoice, suitable for dealers, resellers, and industrial use.
How do I know which chemical or filter is suitable for my water?
You can share your raw water report, TDS, or problem description. Our technical team will recommend the correct chemical, membrane, filter media, or system.
Please connect with us from Contact Us.
Can I speak to someone before placing an order?
Yes, you can contact us directly via phone, email, or WhatsApp for product guidance or bulk pricing.