TFC-8040-HR-400-34 8" High Rejection, High Area

Summary

Product identification

The FLUID SYSTEMS® TFC® HR 8” ELEMENTS are high rejection, high area reverse osmosis (RO) elements designed for brackish water treatment.

• Membrane Chemistry: Proprietary TFC® polyamide
• Membrane Type: TFC® HR membrane
• Construction: High area spiral wound with 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, 15% recovery, 77°F (25°C) and pH 7.5.

Performance Note: Individual element permeate flows may vary +20/-15% from the values shown. Minimum chloride ion rejection is 99.2% at the specified test conditions.

Operating limits

• Typical Operating Pressure: 150 - 250 psi (1,035 - 1,725 kPa)
• Maximum Operating Pressure: 600 psi (4,140 kPa)
• Maximum Operating Temperature: 113°F (45°C)
• Maximum Cleaning Temperature: 113°F (45°C)
• Maximum Differential Pressure per 40” Long Element: 10 psi (69 kPa)
• Maximum Differential Pressure Per Vessel: 60 psi (414 kPa)
• Allowable pH – Continuous Operation: 4 - 11
• Allowable pH – Short Term Cleaning: 2.5 - 11 (limit exposure 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 15%.

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 TFC-HR membrane to free chlorine or other oxidizing agents (such as permanganate, ozone, bromine, and iodine) is not recommended. The TFC-HR 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 the pH and/or temperature are different. Sodium metabisulfite is the preferred reducing agent.
  • Chloramine: The TFC-HR 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: TFC-HR membrane may be irreversibly fouled if exposed to cationic (positively charged) polymers or surfactants. Exposure to these chemicals during operation or cleaning is not recommended.

Mechanical / hydraulic

• Nominal Dimensions and Weight:
  • Model: 8040-HR-400-34, 8040-HR-440-28
  • Length (A): 40 inches (1,016 mm)
  • Diameter (B): 8 inches (203 mm)
  • Interconnector Protrusion (C): 1.125 inches (29 mm)
  • Weight: 44 lbs (20 kg)
  • Part Numbers:
    • Interconnector: 0035260
    • O-ring: 0035464
    • Brine Seal: 0030584
  • Note: Dimensions are provided for reference only and should not be interpreted as accurate specifications.
• Lubricants: For element loading, use only 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.

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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