Datasheet summary
DuraSlick NF Series
Engineering summary from PDF text extraction for DuraSlick NF Series. Verify every value with the OEM datasheet.
Summary
Product identification
The DuraSlick NF Series comprises low-fouling nanofiltration (NF) membrane elements, featuring a Thin-film membrane (TFM*). They are engineered for fouling-prone brackish water applications and industrial effluent treatment for reuse or discharge. These elements utilize an innovative three-layer membrane, with a proprietary middle layer creating extreme smoothness, designed to provide high salt rejection.
Models and Specifications:
- DuraSlick NF2540
- Part number: 1234385
- Spacer: 30 mil (0.76 mm)
- Active area: 28 ft² (2.6 m²)
- Outer wrap: Fiberglass
- DuraSlick NF4040
- Part number: 1234307
- Spacer: 30 mil (0.76 mm)
- Active area: 85 ft² (7.9 m²)
- Outer wrap: Fiberglass
- DuraSlick NF8040
- Part number: 1234182
- Spacer: 30 mil (0.76 mm)
- Active area: 370 ft² (34.4 m²)
- Outer wrap: Fiberglass
Product water
Permeate Flow and MgSO₄ Rejection (Testing conditions: 2,000 ppm MgSO₄ solution at 110 psi (760 kPa) operating pressure, 77°F (25°C), pH 7.5 and 15% recovery. Average salt rejection after 24 hours operation. Individual flow rate may vary ±25%.)
- DuraSlick NF2540
- Average permeate flow: 600 gpd (2.3 m³/day)
- Average MgSO₄ rejection: 98.0%
- Minimum MgSO₄ rejection: 96.0%
- DuraSlick NF4040
- Average permeate flow: 2,400 gpd (9.1 m³/day)
- Average MgSO₄ rejection: 98.0%
- Minimum MgSO₄ rejection: 96.0%
- DuraSlick NF8040
- Average permeate flow: 8,600 gpd (32.6 m³/day)
- Average MgSO₄ rejection: 98.0%
- Minimum MgSO₄ rejection: 96.0%
Operating limits
- Typical Operating Pressure: 100 psi (690 kPa)
- Maximum Operating Pressure: 600 psi (4,137 kPa)
- Typical Operating Flux: 10-15 GFD (15-25 LMH)
- Maximum Temperature:
- Continuous Operation: 122°F (50°C)
- Clean-In-Place: 104°F (40°C)
- pH Range:
- Continuous Operation: 3.0 – 9.0
- Clean-In-Place (CIP): 2.0 – 11.0
- Maximum Pressure Drop:
- Over an element: 12 psi (83 kPa)
- Per housing: 50 psi (345 kPa)
- Chlorine Tolerance: 500 ppm-hrs (dechlorination recommended)
Feed water
- NTU < 1
- SDI₁₅ < 5
Mechanical / hydraulic
Dimensions and Weight (Dimensions in inches (cm), Weight in lbs (kg))
- DuraSlick NF2540
- A: 40.0 (101.6)
- B: 0.75 (1.9)
- C: 2.4 (6.1)
- Boxed Weight: 7 (3)
- DuraSlick NF4040
- A: 40.0 (101.6)
- B: 0.75 (1.9)
- C: 3.9 (9.9)
- Boxed Weight: 11 (5)
- DuraSlick NF8040
- A: 40.0 (101.6)
- B: 1.125 (2.86)
- C: 7.9 (20.0)
- Boxed Weight: 35 (16)
Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the most recent revisions of the OEM datasheet. For contractual purposes, always refer to the complete, official OEM PDF document revision applicable to 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.