TFC HF MegaMagnum / 18061 HF 3050

Summary

Product identification

The FLUID SYSTEMS® TFC®-HF MegaMagnum® Element is a high rejection, high flow seawater reverse osmosis (RO) element.

• Membrane Chemistry: Proprietary TFC® polyamide
• Membrane Type: TFC®-HF membrane
• Construction: Spiral wound with helical fiberglass outerwrap
• Applications: Seawater desalination

Specifications

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.

Performance

Performance specifications are nominal values. Individual element permeate flows may vary ±15%. Minimum rejection is 99.5% at the specified test conditions. System performance should be predicted using KMS ROPRO® software. System operating data should be normalized and key performance parameters tracked using KMS NORMPRO® software.

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)
• Allowable pH – continuous operation: 4 - 11
• Allowable pH – short term cleaning: 2.5 - 11
  • It is recommended to limit exposure to the extended pH range to 4 hours, once per month.
• Permeate pressure: Should not exceed feed-concentrate pressure by more than 5 psi (34 kPa) at any time (on-line, off-line and during transition).
• Recovery: Maximum recovery is site and application specific. Single element recovery is approximately 11% for MegaMagnum® elements. Recovery limits should be determined using KMS ROPRO program.

Feed water

• Maximum continuous free chlorine: <0.1 mg/l
• Maximum feed turbidity: 1 NTU
  • Feedwater with turbidity greater than 0.2 NTU generally results in frequent cleanings.
• Maximum feed SDI (15 minute test): 5.0

Chemical Tolerance:

• Chlorine: Exposure of the TFC-HF membrane to free chlorine or other oxidizing agents (such as permanganate, ozone, bromine, and iodine) is not recommended. The membrane has a 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 are different. Sodium metabisulfite (without catalysts such as cobalt) is the preferred reducing agent. The membrane has a 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 (Positively Charged) Polymers and Surfactants: The TFC-HF membrane may be irreversibly fouled if exposed to cationic polymers or surfactants. Exposure to these chemicals during operation or cleaning is not recommended.

Mechanical / Hydraulic

• Maximum differential pressure per element: 12 psi (82.7 kPa)
• Maximum differential pressure per vessel: 60 psi (414 kPa)

Nominal Dimensions and Weight:

Lubricants: For element loading, use only approved silicone lubricant, water, or glycerin to lubricate O-rings and brine seals. The use of petroleum-based lubricants or vegetable-based oils may damage the element and void the warranty.

---

Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet