TFC 8822 XR-365

Summary

Product identification

The FLUID SYSTEMS® TFC® - XR 8” ELEMENT is an extra high rejection, brackish water reverse osmosis (RO) element.

• Membrane Chemistry: Proprietary TFC polyamide
• Membrane Type: TFC-XR membrane
• Construction: Spiral wound with fiberglass outerwrap
• Applications: Extra high rejection for brackish water treatment
• Options: 40” (1,016 mm) length, with standard or high area construction, or 60” (1,524 mm) Magnum® length

Specifications

Test Conditions:

• 2,000 mg/l NaCl solution
• 325 psi (2,240 kPa) applied pressure
• 15% recovery (20% recovery for Magnum® elements)
• 77°F (25°C)
• pH 7.5

Operating limits

• Typical Operating Pressure: 225-450 psi (1,550 – 3,100 kPa)
• Maximum Operating Pressure: 600 psi (4,140 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
• Maximum Differential Pressure per Element: 10 psi (69 kPa) for 40” (1,016 mm) elements, 15 psi (104 kPa) for 60” (1,524 mm) elements.
• 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.
• Recovery (single element): Approximately 15% for 40” (1,016 mm) long elements, 20% for 60” (1,524 mm) long elements. Maximum recovery is site and application specific.

Feed water

• Maximum Turbidity: 1 NTU
• Maximum Silt Density Index (SDI, 15 minute test): 5.0
• Feed Spacer Thickness: 31/28 mil (0.8/0.7 mm)

Product water

• Performance: Performance specifications are nominal values. Individual element permeate flows may vary +20% / -15% from the values shown.
• Minimum MgSO₄ Rejection: 99.4% (at the specified test conditions).

Mechanical / hydraulic

Dimensions and Weight

Lubricants

• For element loading, use only approved silicone lubricant, water, or glycerin for O-rings and brine seals.
• The use of petroleum-based lubricants or vegetable-based oils may damage the element and void the warranty.

Chemical tolerance

• Chlorine: Intentional exposure to free chlorine or other oxidizing agents (e.g., permanganate, ozone, bromine, iodine) is not recommended.
  • Free chlorine tolerance is approximately 1,000 ppm-hours based on testing at 77°F (25°C), pH 8. This tolerance may be reduced by catalyzing metals (e.g., iron), or different pH/temperature.
  • Sodium metabisulfite (without catalysts like cobalt) is the preferred reducing agent.
  • Chloramine tolerance is approximately 60,000 ppm-hours in the absence of free chlorine, based on testing at 77°F (25°C), pH 8.
  • Maximum continuous free chlorine: <0.1 mg/l
• Cationic (Positively Charged) Polymers and Surfactants: Exposure to these chemicals during operation or cleaning is not recommended due to potential for irreversible fouling.

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Disclaimer: This summary is based on the provided text extraction and may not include all figures, footnotes, or the latest revisions of the OEM PDF datasheet. Contractual data must match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet