Fujian Huamo Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of low pressure ro membrane element in China. If you're going to wholesale bulk low pressure ro membrane element 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
The low pressure RO membrane element uses a spiral‑wound composite polyamide construction that resists fouling while delivering stable output. Unlike conventional high‑pressure membranes, this element operates with significantly lower energy demand. We offer standard capacities from 50 to 400 GPD, with customized models available up to 1000 GPD upon request – giving you flexibility for larger commercial setups.
Key technical features:
- Active membrane area – from 4 ft² (0.4 m²) for 50–75 GPD models up to 16 ft² (1.5 m²) for 400 GPD.
- Wide pH tolerance – continuous operation at pH 3–10, chemical cleaning at pH 2–11.
- High recovery rate – 15–30% under standard test conditions.
- Compatibility – fits standard 1812/2012/2812/3012/3013 housings for easy retrofit.
This element is manufactured without wetting agents, so no special pre-treatment is required before startup.
Video Description
Product Specifications
Model | Active Membrane | Average Permeate | Stable Rejection | Test Pressure | Test Temp | Test Concentration |
ULP1812-50 | 4ft2 (0.4m2) | 50GPD | 95% | 65psi(0.45MPa) | 25℃ | 250ppm |
ULP1812-75 | 4ft2 (0.4m2) | 75GPD | 95% | 65psi(0.45MPa) | 25℃ | 250ppm |
ULP2012-100 | 5ft2 (0.5m2) | 100GPD | 95% | 65psi(0.45MPa) | 25℃ | 250ppm |
ULP2012-125 | 5ft2 (0.5m2) | 125GPD | 95% | 65psi(0.45MPa) | 25℃ | 250ppm |
ULP2812-200 | 10ft2 (1m2) | 200GPD | 95% | 100psi(0.69MPa) | 25℃ | 500ppm |
ULP3012-300 | 14ft2 (1.4m2) | 300GPD | 95% | 100psi(0.69MPa) | 25℃ | 500ppm |
ULP3013-400 | 16ft2 (1.5m2) | 400GPD | 95% | 100psi(0.69MPa) | 25℃ | 500ppm |
Customized Models | Customized | Customized | Customized | Customized | 25℃ | Customized |
Upgrade Guidelines
- A 50 GPD membrane can be directly swapped for a 75 GPD unit – no additional component changes are needed.
- To step up from 50/75/100 GPD to 200/300/400 GPD, you must simultaneously replace the membrane housing, water pump, and power supply.
Membrane Condition & Packaging
Supplied as a dry element – free of any preserving liquid, sealed under normal atmospheric pressure (non‑vacuum packing).
Pre‑operation Flushing Requirement
Before normal use, flush the membrane with water for at least one hour. The permeate produced during this initial flushing must be discarded and not consumed.
*Disclaimer: Actual performance may vary depending on specific operating conditions. The data provided in this document are for reference only and do not serve as a guarantee of performance in actual applications.
Why Choose Our Low Pressure RO Membrane?
- Energy-Efficient Output – Maintains high flux at low operating pressures (as low as 65 psi), delivering significant energy savings compared to traditional RO membranes.
- Advanced Dry-Type Packaging – 100% dry membrane elements without protective liquid – easier to store, longer shelf life, and eco‑friendly shipping.
- Precision Manufacturing – Automated rolling technology ensures uniform leaf spacing and consistent salt rejection (≥95%) across all batches.
- Plug-and-Play Upgradability – 50 GPD units can be directly swapped for 75 GPD elements to increase output without hardware modifications.
- Wide Flow Range (50–1000 GPD) – Flexible sizing for homes, labs, shops, and small commercial systems – one product family for diverse needs.
- Broad Compatibility – Fits standard 1812, 2012, 2812, 3012, and 3013 housings, making it a true replacement RO membrane for most existing systems.
- Customization Available – Tailored active area, housing size, and flow rate to meet OEM or private‑label requirements.
Applications
- Residential RO water purifiers
- Commercial drinking water systems
- Hospital and laboratory water treatment
- Retail and store water filtration systems
- Small-scale industrial water purification
- Well water and tap water treatment systems with low salinity
FAQ
1. What feed water quality is this low pressure RO membrane element suitable for?
Low-salinity water (municipal tap water, well water, TDS ≤500 ppm).
2. What is the operating pressure range?
Standard models: 65 psi (0.45 MPa); 200–400 GPD models: 100 psi (0.69 MPa).
3. What salt rejection rate can I expect?
≥95% under standard test conditions.
4. Can I upgrade from 50 GPD to 75 GPD without changing parts?
Yes, the physical dimensions are identical. However, for optimal performance, also replace the flow restrictor (drain line) to match the 75 GPD rating.
5. Typical service life?
12–24 months depending on feed water quality and maintenance.