Datasheet summary
TFC-18061-SW-3050 High Rejection
Engineering summary from PDF text extraction for TFC-18061-SW-3050 High Rejection. Verify every value with the OEM datasheet.
Summary
Product identification
The FLUID SYSTEMS® TFC®-SW MegaMagnum® ELEMENT is a high rejection, seawater, reverse osmosis (RO) element designed for seawater desalination.
- Membrane Chemistry: Proprietary TFC® polyamide
- Membrane Type: TFC®-SW membrane
- Construction: Spiral wound with helical fiberglass outerwrap
- Applications: Seawater desalination
Specifications
| Model | Permeate Flow gpd (m³/d) | Chloride Rejection percent | Membrane Area ft² (m²) | Spacer mil (mm) |
|---|---|---|---|---|
| 18061-SW-3050 | 53,000 (200) | 99.75 | 3,050 (283) | 28 (0.7) |
Test Conditions: 32,800 mg/l NaCl solution (isosmotic to ASTM standard seawater) at 800 psi (5,520 kPa) applied pressure, 11% recovery, 77°F (25°C) and pH 7.5.
Operating limits
- Typical operating pressure: 750-950 psi (5,175 – 6,555 kPa)
- Maximum operating pressure: 1,200 psi (8,275 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 (recommended to limit exposure to 4 hours, once per month, for the extended pH range)
- Maximum differential pressure per element: 12 psi (82.7 kPa)
- Maximum differential pressure per vessel: 60 psi (414 kPa)
- Maximum feed turbidity: 1 NTU (feedwater with turbidity greater than 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: Maximum recovery is site and application specific. Single element recovery is approximately 11% for MegaMagnum® elements.
Mechanical / Hydraulic
| Model | A inches (mm) | B inches (mm) | Weight lbs (kg) |
|---|---|---|---|
| 18061-SW-3050 | 61 (1,549) | 18 (457) | 250 (113.0) |
Performance Notes
Performance specifications shown are nominal values. Individual element permeate flows may vary ±15% from these values. Minimum rejection is 99.5% at the specified test conditions. System performance should be predicted using KMS ROPRO® software, and operating data tracked with KMS NORMPRO® software.
Chemical Tolerance
- Chlorine/Oxidizers: Exposure to free chlorine or other oxidizing agents (such as permanganate, ozone, bromine, and iodine) is not recommended.
- Free chlorine tolerance: 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/temperature differ. Sodium metabisulfite (without catalysts) is the preferred reducing agent.
- Chloramine tolerance: Approximately 60,000 ppm-hours in the absence of free chlorine based on testing at 77°F (25°C), pH 8.
- Cationic (Positively Charged) Polymers and Surfactants: Exposure to these chemicals during operation or cleaning is not recommended, as the TFC-SW membrane may be irreversibly fouled.
- Lubricants: For element loading, use only approved silicone lubricant, water, or glycerin to lubricate O-rings and brine seals. Petroleum-based lubricants or vegetable oils may damage the element and void the warranty.
Disclaimer: This summary is an extraction and may not capture all figures, footnotes, or the latest revisions. 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.