Datasheet summary
Industrial NF1 series
Engineering summary from PDF text extraction for Industrial NF1 series. Verify every value with the OEM datasheet.
Summary
Product identification
The Industrial NF1 Series consists of high-pressure nanofiltration elements featuring a D-Series proprietary thin-film membrane. These elements are designed to remove low-solubility salts and organics from concentrated effluents and brines.
The Industrial NF1 elements are capable of permeating sodium chloride (NaCl) while rejecting sodium sulfate (Na₂SO₄). Their high-pressure construction allows operation up to 80 bar. This salt segregation, combined with high-pressure capabilities, enables the production of a pure, highly concentrated (> 150 g/L) single salt. This process can significantly simplify thermal processes for Zero Liquid Discharge (ZLD) or Minimum Liquid Discharge (MLD) projects, potentially reducing them to a crystallizer only, thereby lowering investment and operational costs.
Element Specifications
- Membrane: D-Series, Thin-film membrane (TFM*)
| Model | Average permeate flow gpd (m³/day) (1)(2) | Minimum MgSO₄ rejection (1)(2) |
|---|---|---|
| INDUSTRIAL NF1 4040F35 | 1,600 (6.1) | 98.0% |
| INDUSTRIAL NF1 8040F35 | 6,600 (25.0) | 98.0% |
(1) Average salt rejection after 24h operation. Individual flow rate may vary ±25%. (2) Testing conditions: 2,000 ppm MgSO₄ solution at 110 psi (760 kPa) operating pressure, 77°F, pH 7.5 and 15% recovery.
Operating limits
Operating and CIP parameters
- Typical Operating Flux: 5 - 20 GFD (8 – 34 LMH)
- Maximum Operating Pressure: See table below
- Maximum Temperature:
- Continuous operation: 122°F (50°C)
- Clean-In-Place (CIP): 122°F (50°C)
- pH Range:
- Continuous operation: 3.0 – 9.0
- Clean-In-Place (CIP): 2.0 – 11.0 (Refer to Cleaning Guidelines Technical Bulletin TB1194.)
- Maximum Pressure Drop:
- Over an element: 15 psi (103 kPa)
- Per housing: 60 psi (414 kPa)
- Chlorine Tolerance: 500 ppm x hours, Dechlorination recommended.
Maximum Operating Pressure
| Temperature | Maximum Operating Pressure |
|---|---|
| < 77°F (25°C) | 1,200 psi (8,253 kPa) |
| < 86°F (30°C) | 1,000 psi (6,895 kPa) |
| < 95°F (35°C) | 850 psi (5,860 kPa) |
| < 104°F (40°C) | 750 psi (5,171 kPa) |
| < 113°F (45°C) | 670 psi (4,619 Pa) |
| < 122°F (50°C) | 600 psi (4,137 kPa) |
Feed water
- NTU < 1
- SDI₁₅ < 5
Mechanical / hydraulic
The elements are available in Female and Male configurations, corresponding to Figure 1 and Figure 2 Element Dimensions Diagrams (not provided in text).
Element Build
| Model | Spacer | Active area (inches (cm)) | Outer wrap | Part |
|---|---|---|---|---|
| INDUSTRIAL NF1 4040F35 | 35 (0.89) | 75 (7.0) | Fiberglass | 3154540 |
| INDUSTRIAL NF1 8040F35 | 35 (0.89) | 330 (30.7) | Fiberglass | 3148906 |
| Note: Units for "Spacer" are not explicitly stated in the provided text. The units for "Active area" are given as "inches (cm)" in the source table, which might be a typographical error, as active area is typically measured in square feet or square meters. |
Dimensions and Weight
| Model | Type | Dimensions, inches (cm) A | Dimensions, inches (cm) B | Dimensions, inches (cm) C | Boxed Weight lbs. (kg) |
|---|---|---|---|---|---|
| 4040F | Male | 40.0 (101.6) | 0.75 (1.90) | 3.9 (9.9) | 11 (5) |
| 8040F | Female | 40.0 (101.6) | 1.125 (2.86) | 7.9 (20.1) | 35 (16) |
Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the complete OEM PDF datasheet. For contractual data, please refer to the official PDF revision used on your project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.