Reverse Osmosis 4040 RO Membrane

The 4040 RO Membrane is a high-performance reverse osmosis membrane designed for various small-scale applications. Whether it’s an automatic water dispenser in a residential area or school, direct drinking equipment in an office, or pure water machines in medical laboratories, this membrane delivers excellent water purification results. It’s also perfect for small-sized desalination devices, ensuring reliable performance across different use cases.

This 4040 RO membrane offers a permeate flow of 2000 GPD (7.6 m³/d) with a 99.6% salt rejection rate, making it one of the most efficient solutions for high-quality water filtration. It’s designed to withstand demanding conditions with a maximum working pressure of 600 psi (4.14 MPa) and temperature tolerances up to 45°C.

• Permeate Flow: 2000 GPD (7.6 m³/day)
• Salt Rejection: 99.6% (minimum 99.5%)
• Max. Working Pressure: 600 psi (4.14 MPa)
• Max. Feed Water Temperature: 45°C
• Max. Feed Water Flow: 1.4 m³/h
• Max. Feed Water SDI: 5.0
• Free Chlorine Concentration: ≤ 0.1 mg/L
• pH Range (Operation): 3-10
• pH Range (Cleaning): 1-13
• Max. Pressure Drop: 15 psi (0.1 MPa)

Test Conditions:

• Feed Solution: 1500 PPM NaCl
• Applied Pressure: 150 psi (1.03 MPa)
• Operating Temperature: 77°F (25°C)
• Permeate Recovery: 8%
• pH Range: 7.5-8.0

Supports feedwater pH ranges of 3-10 during continuous operation and 1-13 during chemical cleaning, making it adaptable to different water sources and cleaning methods.