NF90 series NF membrane adopt proprietary multi-layer modified polyamide composite materials. The ultra-thin hydrophilic coating membrane technology endows them with excellent anti-fouling capability.
Meanwhile, their flux is up to more than twice that of mainstream imported competitors, and the operating pressure can be reduced by more than 50%.
Their overall performance surpasses and can perfectly replace NF membranes such as NF270, XC-N, DL, and DK.
Product Model | Effective Area ft² (㎡) | Inlet Flow Channel Width (mil) | Water Production gpd (m³/d) | Divalent Salt Rejection Rate (%) | Monovalent Salt Rejection Rate (%) |
HQ-NF-S-4040-HF | 82 (7.6) | 34 | 2800 (10.6) | 90 | 30-50 |
HQ-NF-S-8040-HF | 400 (37.2) | 34 | 13800 (52.2) | 90 | 30-50 |
HQ-NF-S-4040-HR | 82 (7.6) | 34 | 2500 (9.5) | 95 | 30-50 |
HQ-NF-S-8040-HR | 400 (37.2) | 34 | 12500 (47.3) | 95 | 30-50 |
HQ-NF-S-Pro-4040 | 82 (7.6) | 34 | 1850 (7.0) | 97 | 40-60 |
HQ-NF-S-Pro-8040 | 400 (37.2) | 34 | 9100 (34.4) | 97 | 40-60 |
HQ-NF-S-SPEC-8040 | 400 (37.2) | 34 | / | Customized | Customized |
Standard Test Conditions for Water Production and Salt Rejection Rate: 70 psi (0.48 MPa), 2000 ppm MgSO₄/500 ppm NaCl/500 ppm CaCl₂, 77 ℉ (25 ℃), 15% recovery rate, pH 7.
The water production of a single element may vary, but the variation range shall not exceed +/-20%.
The above specification values are nominal test values; please strictly comply with the NF membrane system design guidelines during operation.
The pH tolerance range is a parameter at 25 ℃, the tolerance range will narrow as the temperature rises.
The NF90 membrane has a high hardness removal rate and can efficiently remove toxic metals such as copper, cadmium, chromium, lead, mercury, antimony, and arsenic.
The NF90 membrane has a high organic matter removal rate, which can effectively remove small-molecule organics in water (such as antibiotics, endocrine disruptors, etc.) and reduce the COD in water.
The removal rate of divalent salts (magnesium sulfate, iron, heavy metals, etc.) is >98%, while allowing monovalent salts to pass through.
High removal rate of organic compounds (pesticides, herbicides, antibiotics, THM precursors, etc.).
Application Fields: Drinking water purification, sewage treatment, seawater desalination, reclaimed water reuse, biopharmaceutical and pharmaceutical industries, food and beverage industries, chemical and dye industries, etc.
Contact Huaqiang for Wholesale Water Treatment Equipment
+86-05722755556 
Huaqiangenv@163.com 
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