TFC 8822 HR-400

Summary

Product identification

• Product Line: FLUID SYSTEMS® TFC® - HR 8” ELEMENTS
• Description: High Rejection, Low Pressure RO Elements for Brackish Water
• Membrane Type: Proprietary TFC® HR polyamide
• Construction: Spiral wound with fiberglass outerwrap
• Applications: High rejection for brackish water treatment
• Length Options: 40” (1,016 mm) or 60” (1,524 mm) Magnum®
• Feed Spacer Options: 28 or 31 mil

Specifications

Performance specifications are nominal values. Individual element permeate flows may vary +20%/-15% from the values shown. Minimum chloride ion rejection is 99.2% at the conditions shown.

Test Conditions: 2,000 mg/l NaCl solution at 225 psi (1,550 kPa) applied pressure, 15% recovery (20% recovery for Magnum® elements), 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)
• Allowable pH – Continuous Operation: 4 – 11
• Allowable pH – Short Term Cleaning: 2.5 – 11
• Maximum Differential Pressure Per Element:
  • 40” length: 10 psi (69 kPa)
  • Magnum®: 15 psi (104 kPa)
• 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 (on-line, off-line and during transition).
• Recovery: Maximum recovery is site and application specific. Single element recovery is approximately 15% for 40” long and 20% for 60” long elements.

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: Intentional exposure to free chlorine or other oxidizing agents (e.g., permanganate, ozone, bromine, iodine) is not recommended. 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 (without catalysts such as cobalt) is the preferred reducing agent.
• Chloramine: 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 polymers or surfactants. Exposure to these chemicals during operation or cleaning is not recommended.
• 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 must match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet