TFC-18061-HR-2850 High Rejection, Low Pressure

Summary

Product identification

FLUID SYSTEMS® TFC®- HR MegaMagnum® Elements are high rejection, low pressure reverse osmosis (RO) elements designed for brackish water treatment.

• Membrane Chemistry: Proprietary TFC® polyamide
• Membrane Type: TFC®-HR membrane
• Construction: Spiral wound with helical fiberglass outerwrap
• Applications: High rejection for brackish water treatment

Specifications

Test Conditions: 2,000 mg/l NaCl solution at 225 psi (1,550 kPa) applied pressure, 20% recovery, 77°F (25°C) and pH 7.5.

Performance Characteristics

• Individual element permeate flows may vary ±15% from the nominal values.
• Minimum chloride ion rejection is 99.2% under 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: 150 - 350 psi (1,035 - 2,400 kPa)
• Maximum Operating Pressure: 450 psi (3,100 kPa)
• Maximum Operating Temperature: 113°F (45°C)
• Maximum Cleaning Temperature: 113°F (45°C)
• Maximum Differential Pressure Per Element: 12 psi (82.7 kPa)
• Maximum Differential Pressure Per Vessel: 60 psi (414 kPa)
• 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).
• pH - Continuous Operation: 4 - 11
• pH - Short Term Cleaning: 2.5 - 11 (recommended to limit exposure to the extended pH range to 4 hours, once per month).
• Recovery: Maximum recovery is site and application specific. Typical individual element recovery is < 20%. Recovery limits should be determined using the KMS ROPRO program.

Feed Water Quality Requirements

• 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
• Chlorine/Oxidizing Agents: Exposure of TFC-HR membrane 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 and/or temperature differ. Sodium metabisulfite (without catalysts like cobalt) 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: May irreversibly foul the TFC-HR membrane if exposed. Exposure to these chemicals during operation or cleaning is not recommended.

Mechanical Characteristics

Lubricants: For element loading, use only the recommended silicone lubricant (or approved equivalent), 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.

Support and Software

KMS offers an experienced staff of professionals to assist end-users and OEMs with system optimization and new application development. Supplemental technical bulletins are available.

---

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

Official datasheet (PDF)

PDF datasheet