Datasheet summary
TFC-4040-HF 4" High Rejection, High Flow
Engineering summary from PDF text extraction for TFC-4040-HF 4\" High Rejection, High Flow. Verify every value with the OEM datasheet.
Summary
Product identification
- Membrane Chemistry: Proprietary TFC® polyamide
- Membrane Type: TFC®-HF membrane
- Construction: Spiral wound with fiberglass outerwrap
- Applications: Seawater desalination
Specifications
| Part Number | Model | Permeate Flow gpd (m³/d) | Chloride Rejection percent | Active Membrane Area ft² (m²) | Feed Spacer mil (mm) |
|---|---|---|---|---|---|
| 8182002 | 4040-HF | 1,760 (6.6) | 99.7 | 74 (6.9) | 31 (0.8) |
Test Conditions: 32,800 mg/l NaCl solution (isosmotic to ASTM standard seawater) at 800 psi (5,520 kPa) applied pressure, 7% recovery, 77°F (25°C) and pH 7.5.
Performance
Performance specifications are nominal values. Individual element permeate flows may vary ±15% from the values shown. Minimum rejection is 99.3% at the conditions shown.
Operating limits
- Typical Operating Pressure: 750 - 950 psi (5,175 - 6,555 kPa)
- Maximum Operating Pressure: 1,000 psi (6,896 kPa)
- Maximum Operating Temperature: 113°F (45°C)
- Maximum Cleaning Temperature: 113°F (45°C)
- Maximum Continuous Free Chlorine: <0.1 mg/l
- Allowable pH – Continuous Operation: 4 - 11
- Allowable pH – Short Term Cleaning: 2.5 - 11 (exposure to extended pH range limited to 4 hours, once per month)
- Maximum Differential Pressure Per Element: 10 psi (69 kPa)
- Maximum Differential Pressure Per Vessel: 60 psi (414 kPa)
- Maximum Feed Turbidity: 1 NTU (feedwater with turbidity >0.2 NTU generally results in frequent cleanings)
- Maximum Feed SDI (15 minute test): 5
- Permeate Pressure: Should not exceed feed-concentrate pressure by more than 5 psi (34 kPa) at any time.
- Recovery: Single element recovery is approximately 7% per element. Maximum recovery is site and application specific.
Chemical Tolerance
- Chlorine:
- Exposure to free chlorine or other oxidizing agents (e.g., permanganate, ozone, bromine, iodine) is not recommended.
- Free chlorine tolerance of approximately 1,000 ppm-hours based on testing at 77°F (25°C), pH 8. This tolerance may be significantly reduced if catalyzing metals (e.g., iron) are present or if pH and/or temperature differ.
- Sodium metabisulfite (without catalysts such as cobalt) is the preferred reducing agent.
- Chloramine tolerance of approximately 60,000 ppm-hours in the absence of free chlorine based on testing at 77°F (25°C), pH 8.
- Cationic Polymers and Surfactants: May cause irreversible fouling; exposure during operation or cleaning is not recommended.
- Lubricants: For element loading, use only approved silicone lubricant, water, or glycerin. Petroleum-based lubricants or vegetable-based oils may damage the element and void the warranty.
Mechanical / Hydraulic
Nominal Dimensions and Weight (for reference only)
| Model | A inches (mm) | B inches (mm) | C inches (mm) | D inches (mm) | Weight lbs (kg) | Interconnector | O-ring | Brine Seal |
|---|---|---|---|---|---|---|---|---|
| 4040-HF | 40 (1,016) | 4 (101.6) | 0.75 (19.0) | 1.0 (25.4) | 10 (4.5) | 0035267 | 0035458 | 0035702 |
Disclaimer: This summary is based on extracted text and may miss figures, footnotes, or revisions present in the original OEM PDF. Contractual data must match the OEM PDF revision used on the 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.