Fujian Huamo Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of 4040 ultra low pressure ro membrane in China. If you're going to wholesale bulk 4040 ultra low pressure ro membrane 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
Why We Developed This 4040 Low Pressure Membrane
We designed this 4040 ultra low pressure RO membrane to meet growing demand for small, low-energy water treatment systems. Traditional 4-inch RO needs high pressure-meaning bigger pumps and higher electricity bills. Regular membranes also foul fast, causing frequent cleaning and short life.
We use high-quality imported aromatic polyamide and advanced molecular tech. This keeps high salt rejection while dropping working pressure significantly. It's perfect for tap water/groundwater and fits both intermittent and 24/7 operation.
Product Specifications
Item | Parameter |
Model | 4040 Ultra Low Pressure RO Membrane |
Permeate Flow Rate | 2400 GPD (9.1 m³/day) |
Stabilized Salt Rejection | 99.2% |
Operating Pressure | 1.0–1.5 MPa |
Active Membrane Area | 90 ft² (8.3 m²) |
pH Range | 2–11 |
Factory Location | Quanzhou, Fujian, China |
Built for Small Projects: Space-Saving & Low Maintenance
Small water projects often face tight space, simple maintenance and limited budgets. Our 4040 membrane follows standard 4-inch size-fits all common pressure vessels, no pipe changes needed.
- Hydrophilic membrane surface: less colloid/organic sticking
- Slower fouling: longer run time between cleans
- Less flux drop: stable performance day-to-day
- Great for home central water, office dispensers, hotels, community vending stations and light industrial pure water.
Core Performance: Reliable & Consistent
4.Core Performance: Reliable & Consistent
- 90 ft² membrane area, 9.1 m³/day stable output
- Tight pore structure: blocks salts, colloids, organics and microbes
- 99.2% long-term salt rejection
- Low pressure operation: lighter pump load, lower power bills
- Wide pH tolerance (2–11): easy acid/alkaline cleaning
- Reinforced spiral winding: handles pressure shocks and temp changes
Video Description
We store these membranes in Quanzhou's temperature/humidity-controlled warehouse. Stock is always ready for small-batch quick shipping and bulk orders. Standard export packaging ensures safe global delivery.
Our Strength & Service
We have 20+ years in small RO membrane R&D and production. Every piece is tested for flux, rejection and pressure resistance.
- Custom logo/private label available
- Free tech support: selection, setup, operation, cleaning
- Flexible MOQ: small orders welcome, long-term agent contracts supported





FAQ
Q1: Does it fit standard housings?
A1: Yes, standard 4-inch size, plug-and-play.
Q2: What water sources work best?
A2: Tap water and groundwater (low salinity), not for high-salinity brackish water.
Q3: Can I get OEM service?
A3: Yes, custom logo, label and packaging for small orders.





