ROGA-HR8 / ROGA-8040-HR-325 / 8232 HR Magnum

Summary

Product Identification

ROGA® - HR 4” & 8” elements are Cellulose Acetate, Reverse Osmosis elements.

• Membrane Chemistry: Proprietary ROGA cellulose acetate
• Membrane Type: ROGA membrane
• Construction: Spiral-wound with fiberglass outerwrap
• Applications: High rejection for municipal water treatment, municipal wastewater reclamation, industrial water supply, and where chlorine is needed on a regular basis
• Options: 40” (1,016 mm) or 60” (1,524 mm) Magnum® length

Specifications

Test conditions: 2,000 mg/l NaCl solution at 420 psi (2,900 kPa) applied pressure, 15% recovery (20% recovery for Magnum elements), 77°F (25°C) and pH 5.7.

Performance Notes:

• Individual element permeate flows may vary ±15% from the values shown.
• Minimum chloride ion rejection is 97% at the specified test conditions.
• System performance should be predicted using KMS’ ROPRO® design software.
• System operating data should be normalized and tracked using KMS’ NORMPRO® software.

Operating Limits

• Operating Pressure:
  • Typical: 420 psi (2,900 kPa)
  • Maximum: 600 psi (4,140 kPa)
• Permeate Pressure: Should not exceed feed-concentrate pressure by more than 5 psi (34 kPa) at any time.
• Temperature:
  • Maximum operating: 104°F (40°C)
  • Maximum cleaning: 104°F (40°C)
• pH:
  • Allowable for continuous operation: 4 – 6
  • Allowable for short term cleaning: 2.5 – 7
• Recovery:
  • Single element recovery: approximately 15% for 40” (1,016 mm) long elements; 20% for 60” (1,524 mm) long elements.
  • Maximum recovery is site and application specific and should be determined using KMS’ ROPRO program.

Feed water

• Maximum continuous free chlorine: 1 mg/l (or similarly active oxidizing agents such as iodine, bromine, and ozone, as free chlorine equivalent)
• Maximum feed turbidity: 1 NTU (feedwater with turbidity greater than 0.2 NTU generally results in frequent cleanings)
• Maximum feed SDI (15 minute): 5
• Feedwater pH adjustment: pH should be adjusted to a practical value of approximately 5.7 to minimize membrane hydrolysis. Effects may become significant above pH 6.
• Feed spacer thickness: KMS recommends 31 mil (0.8 mm) thick feed spacers (standard construction) for applications with higher fouling potential.

Mechanical / Hydraulic

• Maximum differential pressure per element:
  • 10 psi (69 kPa) for a 40” (1,016 mm) long element
  • 15 psi (104 kPa) for a 60” (1,524 mm) long element
• Maximum differential pressure per vessel: 60 psi (414 kPa)

Product Dimensions and Weight

Lubricants: For element loading, use only recommended silicone lubricant (or approved equivalent), water, or glycerin to lubricate O-rings and brine seals. Petroleum or vegetable based lubricants may damage the element and void the warranty.

Disclaimer: This extraction may miss figures, footnotes, or revisions present in the original PDF. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet