TFC-8040-S-410 8"

Summary

Product identification

• Product Name: FLUID SYSTEMS® TFC®- S 8” ELEMENT
• Type: Softening, Low Pressure RO Element
• Membrane Chemistry: Proprietary TFC® polyamide
• Membrane Type: TFC®-S membrane
• Construction: Spiral wound with helical fiberglass outerwrap
• Applications: Municipal water treatment for softening and Trihalomethane Formation Potential (THMFP) reduction
• Model: 8040-S-410
• Part Number: 8892303

Product water

• Permeate Flow: 7,800 GPD (29.5 m³/d)
  • Test Conditions: mixed feed with 700 mg/l TDS (at least 45% monovalent), at 80 psi (550 kPa) applied pressure, 15% recovery, 77°F (25°C) and pH 7.5.
  • Individual element permeate flows may vary +20/-20% from nominal values.
• Chloride Rejection: 85%
  • Minimum Chloride Rejection: 80%
  • Test Conditions: mixed feed with 700 mg/l TDS (at least 45% monovalent), at 80 psi (550 kPa) applied pressure, 15% recovery, 77°F (25°C) and pH 7.5.
• MgSO₄ Rejection: 99.0%
  • Minimum MgSO₄ Rejection: 97%
  • Test Conditions: 1,000 mg/l MgSO₄ in deionized water, at 80 psi (550 kPa) applied pressure, 15% recovery, 77°F (25°C) and pH 7.5.
• Active Membrane Area: 410 ft² (38.0 m²)
• Feed Spacer: 28 mil (0.7 mm)

Operating limits

• Typical Operating Pressure: 75 - 125 psi (518 - 863 kPa)
• Maximum Operating Pressure: 350 psi (2,410 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 (exposure to extended pH range recommended to be limited 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).
• Maximum Differential Pressure per 40” Long Element: 10 psi (69 kPa)
• Maximum Differential Pressure per Vessel: 60 psi (414 kPa)
• Recovery: Maximum recovery is site and application specific. Single element recovery is approximately 15% for 40” (1,016 mm) long elements.

Feed water

• Maximum Continuous Free Chlorine: <0.1 mg/l
  • 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 such as 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.
• Maximum Feed Turbidity: 1 NTU (Experience shows feedwater with turbidity greater than 0.2 NTU generally results in frequent cleanings).
• Maximum Feed SDI (15 minute test): 5.0
• Cationic Polymers and Surfactants: Exposure is not recommended as it may irreversibly foul the TFC-S membrane.

Mechanical / hydraulic

• Nominal Dimensions (Model 8040-S-410):
  • Length (A): 40 inches (1,016 mm)
  • Diameter (B): 8 inches (203 mm)
  • Center Tube Diameter (C): 1.125 inches (29 mm)
  • Weight: 44 lbs (20 kg)
• Associated Part Numbers:
  • Interconnector: 0035260
  • O-ring: 0035464
  • Brine Seal: 0030584
• Lubricants for Element Loading: Use only approved silicone lubricant (or approved equivalent), water, or glycerin to lubricate O-rings and brine seals. Petroleum 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