TFC-2822 SS-300, 8" High Rejection, High Flow

Summary

Product identification

FLUID SYSTEMS® TFC® - SS 8” PREMIUM ELEMENTS are high rejection, premium seawater reverse osmosis (RO) elements.

• Membrane Chemistry: Proprietary TFC polyamide
• Membrane Type: TFC-SS membrane
• Construction: Spiral-wound with fiberglass outerwrap
• Applications: Seawater desalination, high rejection premium RO membrane
• Options: Standard or high-area construction

Specifications

Test Conditions: 32,800 mg/L NaCl solution (isosmotic to ASTM standard) at 800 psi (5,520 kPa) applied pressure, 7% recovery, 77°F (25°C), and pH 7.5.

Performance specifications are nominal values. Individual element permeate flows may vary +20%/-15% from the values shown. Minimum chloride ion rejection is 99.75% at the specified conditions.

Operating limits

• Operating Pressure:
  • Typical operating pressure: 750–950 psi (5,175–6,555 kPa)
  • Maximum operating pressure: 1,200 psi (8,275 kPa)
• Permeate Pressure: Should not exceed feed-concentrate pressure by more than 5 psi (34 kPa) at any time.
• Temperature:
  • Maximum operating temperature: 113°F (45°C)
  • Maximum cleaning temperature: 113°F (45°C)
• pH:
  • Allowable pH – continuous operation: 4–11
  • Allowable pH – short term cleaning: 2.5–11
• Differential Pressure:
  • Maximum differential pressure per element: 10 psi (69 kPa) for a 40” (1,016 mm) long element.
  • Maximum differential pressure per vessel: 60 psi (414 kPa)
• Feed Water:
  • Maximum feed turbidity: 1 NTU (Feedwater with turbidity > 0.2 NTU generally results in frequent cleanings).
  • Maximum feed SDI (15 minute test): 5.0
• Recovery: Maximum recovery is site and application specific. Single element recovery is approximately 7%.

Chemical Tolerance

• Chlorine: Intentional exposure to free chlorine or other oxidizing agents (permanganate, ozone, bromine, iodine) is not recommended.
  • TFC-SS 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/temperature differ.
  • Sodium metabisulfite (without catalysts such as cobalt) is the preferred reducing agent.
  • TFC-SS 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: Exposure to these chemicals during operation or cleaning is not recommended, as the membrane may be irreversibly fouled.
• Lubricants: For element loading, use only 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.

Mechanical / hydraulic

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

Official datasheet (PDF)

PDF datasheet