TFC 8822 HR-365

Summary

Product identification

TFC®-HR 8” Elements are high rejection, low-pressure reverse osmosis (RO) elements designed for brackish water treatment.

• 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

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.

Performance Notes:

• Individual element permeate flows may vary +20/-15% from nominal values.
• Minimum chloride ion rejection is 99.2% at the stated test conditions.
• System performance should be predicted using KMS ROPRO® design software.

Operating limits

• Typical Operating Pressure: 150 - 250 psi (1,035 – 1,725 kPa)
• Maximum Operating Pressure: 600 psi (4,140 kPa)
• Permeate Pressure: Should not exceed feed-concentrate pressure by more than 5 psi (34 kPa) at any time.
• 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” (1,016 mm) element: 10 psi (69 kPa)
  • Magnum® (60” / 1,524 mm) element: 15 psi (104 kPa)
• Maximum Differential Pressure Per Vessel: 60 psi (414 kPa)
• Maximum Feed Turbidity: 1 NTU (Feedwater >0.2 NTU generally results in frequent cleanings)
• Maximum Feed SDI (15 minute): 5.0
• Recovery:
  • Single 40” (1,016 mm) element recovery: Approximately 15%
  • Single 60” (1,524 mm) element recovery: Approximately 20%
  • Maximum recovery is site and application specific and should be determined using KMS’ ROPRO program.

Chemical Tolerance

• Free Chlorine / Oxidizing Agents: Intentional exposure to free chlorine or other oxidizing agents (permanganate, ozone, bromine, iodine) is not recommended.
  • Free chlorine tolerance: Approximately 1,000 ppm-hours based on testing at 77°F (25°C), pH 8. This may be reduced if catalyzing metals (e.g., iron) are present or if pH/temperature differ.
  • Sodium metabisulfite (without catalysts like 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.
• Cationic (Positively Charged) Polymers and Surfactants: Exposure to these chemicals during operation or cleaning is not recommended, as they may cause irreversible fouling.

Mechanical / hydraulic

Product Dimensions

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 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 present in the official PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet