Datasheet summary
NFW TFC 300-500Da
Engineering summary from PDF text extraction for NFW TFC 300-500Da. Verify every value with the OEM datasheet.
Summary
Product identification
The NFW (300-500Da) is a Sanitary Nanofiltration Spiral-Wound Element from Synder Filtration. These nanofiltration membranes are engineered for superior separation performance in various application needs, known for stable flux and a wide range of rejection to monovalent and divalent ions, specifically developed for specialty process applications.
- Model: NFW
- Polymer: Proprietary PA TFC
- Approx. Molecular Weight Cutoff: 300-500Da
Operating limits
Recommended Operating Parameters
- Maximum Operating Pressure:
- 600psi (4,137kPa) if T <95°F (35°C)
- 435psi (3,000kPa) if T >95°F (35°C)
- Maximum Temperature: 50°C (122°F)
- pH Range @ Max Temperature: 4-9
- pH Range @ Ambient Temperature: 4-10
Cleaning Parameters
- Maximum Temperature (Short term <30min): 40°C (104°F)
- pH Range @ Max Temperature: 3-10
- pH Range @ Ambient Temperature: 3-10.5
Pressure Drop
- Maximum per Element: 15psi (103kPa)
- Maximum per Housing: 60psi (414kPa)
Chlorine Tolerance
- 500ppm hours, dechlorination recommended
Product water
Membrane Specifications
- Typical Operating Flux: 45-50 GFD
- Min Lactose Rejection: 98.5%
- Test Conditions: 2% Lactose solution at 110psi (760kPa) operating pressure, 77°F (25°C)
- Min MgSO₄ Rejection: 97.0%
- Test Conditions: 2,000ppm MgSO₄ solution at 110psi (760kPa) operating pressure, 77°F (25°C)
- Average NaCl Rejection: 20.0%
- Test Conditions: 2,000ppm NaCl solution at 110psi (760kPa) operating pressure, 77°F (25°C)
Mechanical / hydraulic
Element Dimensions & Weight
| Element Model Number | Diameter (B) in (cm) | Length (A) in (cm) | PWT ID/OD in (cm) | Tube Extension (C) in (cm) | Dry Weight lb (kg) |
|---|---|---|---|---|---|
| 1.8” | |||||
| 1812F | 1.8 (4.6) | 12.0 (30.5) | 0.63 (1.6) | - | 1.0 (0.5) |
| 2.5” | |||||
| 2540F | 2.4 (6.1) | 40.0 (101.6) | 0.63 (1.6) | - | 4.0 (1.8) |
| 2540M | 2.4 (6.1) | 40.0 (101.6) | - | 1 (2.54) (Both Ends) | 4.0 (1.8) |
| 3.8” | |||||
| 3838 | 3.8 (9.7) | 38.0 (96.5) | 0.83 (2.1) | - | 9.0 (4.1) |
| 3838.75 | 3.8 (9.7) | 38.8 (98.4) | 0.81 (2.1) | - | 9.0 (4.1) |
| 8” | |||||
| 8038 | 7.9 (20.1) | 38.0 (96.5) | 1.13 (2.9) | - | 29.0 (13.2) |
| 8040 | 7.9 (20.1) | 40.0 (101.6) | 1.13 (2.9) | - | 29.0 (13.2) |
NF Membrane Area (sq. ft.)
| Element | Feed Spacer (in mils) |
|---|---|
| 24 31 46 65 80 | |
| 1812F | 4.5 4.0 2.9 N/A N/A |
| 2540F | 38 30 22 N/A N/A |
| 2540M | 36 28 20 N/A N/A |
| 3838 | 100 87 68 52 43 |
| 3838.75 | 104 89 69 53 44 |
| 8038 | 450 400 300 240 200 |
| 8040 | 450 400 300 240 200 |
Recommended Element Cross Flow Rate
The recommended cross flow rate will be subject to differential pressure limitations and specific applications.
| Element | Feed Spacer (in mils) |
|---|---|
| 24 31 46 65 80 | |
| 1.8” | |
| m³/hr | 0.7 0.7 0.7 0.9 0.9 |
| gpm | 3 3 3 4 4 |
| 2.5” | |
| m³/hr | 1.4 1.4 1.6 1.6 1.8 |
| gpm | 6 6 7 7 8 |
| 3.8” | |
| m³/hr | 6 7 8 8 9 |
| gpm | 26 29 33 36 38 |
| 8” | |
| m³/hr | 16 18 21 23 24 |
| gpm | 68 76 89 98 103 |
Common Applications
- Demineralization & concentration of lactose
- Desalination of dyes and optical brighteners
- Seawater sulfate removal
Benefits
- Competitive flux as the current industry standard NF membranes
- Excellent MgSO₄ and lactose rejection
- Operate at lower pressures than Reverse Osmosis membranes and still achieve excellent rejection of divalent and multivalent ions
- NF membranes greatly reduce levels of hardness, nitrates, sulfates, tannins, turbidity, color, TDS, and moderate levels of salt from feed water streams
Disclaimer: This summary is based on the provided text extract. The full OEM PDF datasheet may contain additional figures, footnotes, or revisions. For contractual data, always refer to the specific OEM 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.