TFC-8040-FR-375 8" High Rejection, Fouling Resistant, Low Pressure

Summary

Product identification

Fluid Systems® TFC®-FR 8" Elements are high rejection, fouling-resistant, low-pressure RO elements designed for brackish water treatment.

• Membrane Chemistry: Proprietary TFC® polyamide
• Membrane Type: TFC®-FR membrane
• Construction: Spiral wound with fiberglass outerwrap
• Applications: High rejection for brackish water treatment with improved fouling resistance
• Options: Feed spacers: 28 mil (0.7 mm) or 31 mil (0.8 mm)

Available Models:

• Model: 8040-FR-375
  • Part Number: 8882220
  • Permeate Flow: 10,200 gpd (38.6 m³/d)
  • Chloride Rejection: 99.55%
  • Active Membrane Area: 375 ft² (34.8 m²)
  • Feed Spacer: 31 mil (0.8 mm)
• Model: 8040-FR-400
  • Part Number: 8882221
  • Permeate Flow: 11,000 gpd (41.6 m³/d)
  • Chloride Rejection: 99.55%
  • Active Membrane Area: 400 ft² (37.2 m²)
  • Feed Spacer: 28 mil (0.7 mm)

Test Conditions (for performance data): 2,000 mg/l NaCl solution at 225 psi (1,550 kPa) applied pressure, 15% recovery, 77°F (25°C), and pH 7.5.

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 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 recommended to be limited to 4 hours, once per month)
• Maximum Differential Pressure per 40” Long Element: 10 psi (69 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): 5.0

Mechanical / hydraulic

Nominal Dimensions and Weight (Dimensions are provided for reference only and should not be interpreted as accurate specifications.)

• Model: 8040-FR-375
  • A: 40 inches (1,016 mm)
  • B: 8 inches (203 mm)
  • C: 1.125 inches (29 mm)
  • Weight: 44 lbs (20 kg)
  • Interconnector Part Number: 0035260
  • O-ring Part Number: 0035464
  • Brine Seal Part Number: 0030584
• Model: 8040-FR-400
  • A: 40 inches (1,016 mm)
  • B: 8 inches (203 mm)
  • C: 1.125 inches (29 mm)
  • Weight: 44 lbs (20 kg)
  • Interconnector Part Number: 0035260
  • O-ring Part Number: 0035464
  • Brine Seal Part Number: 0030584

Performance Notes

Performance specifications are nominal values. Individual element permeate flows may vary ±15% from the values shown. Minimum chloride ion rejection is 99.2% at the stated test conditions. System performance should be predicted using KMS ROPRO® software, and operating data normalized and tracked using KMS NORMPRO® software.

Chemical Tolerance

• Chlorine: Exposure to free chlorine or other oxidizing agents (e.g., permanganate, ozone, bromine, iodine) is not recommended. The TFC-FR 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 differ. Sodium metabisulfite (without catalysts like cobalt) is the preferred reducing agent. The TFC-FR 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-FR 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.
• Lubricants: For element loading, use only the recommended silicone lubricant (or approved equivalent), water, or glycerin to lubricate O-rings and brine seals. 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 from the original PDF datasheet. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet