CG8 HP

Summary

Product identification

• Product Name: CG8-HP
• Product Line: ResinTech
• Type: Strong Acid Cation
• Grade: High-Purity Grade
• Polymer Matrix: Polystyrene Gel, 8% Crosslinked
• Ionic Form: Sodium
• Functional Group: Sulfonic Acid
• Physical Form: Spherical Beads
• Color: Amber

Typical Properties & Physical Characteristics

• Particle Size: 16 to 50 US Mesh (297 - 1190 μm)
• % < 50 mesh (300µm): < 1%
• Minimum Sphericity: 93%
• Uniformity Coefficient: 1.6
• Reversible Swelling (Na to H): 5% to 9%
• Capacity (meq/mL): 2.0
• Moisture Retention: 42% to 49%
• Shipping Weight: 51 - 53 lbs/ft³ (817 - 849 g/L)
• Regenerability: Yes

Operating Limits

• Maximum continuous temperature: 280°F (138°C)
• Maximum pressure loss: 25 psi

Feed water

• Iron content: Iron content in the feedwater should not be more than 1 mg/L Fe per each 17 mg/L of hardness.
• Ammonia Removal: CG8-HP is slightly selective for ammonia compared to sodium, but hardness is much more preferred. Ammonia is not ionized at pH above 9 and is not well removed when the pH is significantly alkaline.

Suggested Operating Conditions

• Sodium form:
  • Minimum bed depth: 24 inches
  • Backwash expansion: 25 to 50 percent
  • Operating pH range: 0 to 14 SU
  • Regenerant Concentration (NaCl): 10 to 15 percent
  • Regenerant level: 4 to 15 lbs./cu.ft.
  • Regenerant flow rate: 0.5 to 1.5 gpm/cu.ft.
  • Regenerant contact time: >20 minutes
  • Displacement flow rate: Same as dilution water
  • Displacement volume: 10 to 15 gallons/cu.ft.
  • Rinse flow rate: Same as service flow
  • Rinse volume: 35 to 60 gallons/cu.ft.
  • Service flow rate: 1 to 10 gpm/cu.ft.
• Hydrogen cycle:
  • Regenerant Concentration (HCl): 5 to 10 percent
  • Regenerant Concentration (H₂SO₄): 1 to 8 percent

Mechanical / Hydraulic

• Backwash Expansion:
  • 0.0 gpm/sq.ft.: 0% expansion
  • 3.0 gpm/sq.ft.: 0% expansion (at 40°F)
  • 6.0 gpm/sq.ft.: 20% expansion (at 40°F)
  • 9.0 gpm/sq.ft.: 40% expansion (at 40°F)
  • 12.0 gpm/sq.ft.: 60% expansion (at 40°F)
  • (Expansion percentages are also indicated at 60°F, 80°F, and 100°F for various flow rates)
• Pressure Loss:
  • 0.0 gpm/sq.ft.: 0.0 psi/ft.
  • 0.4 gpm/sq.ft.: 0.0 psi/ft. (at 40°F)
  • 0.8 gpm/sq.ft.: 0.4 psi/ft. (at 40°F)
  • 1.2 gpm/sq.ft.: 0.8 psi/ft. (at 40°F)
  • 1.6 gpm/sq.ft.: 1.2 psi/ft. (at 40°F)
  • 2.0 gpm/sq.ft.: 1.6 psi/ft. (at 40°F)
  • 5.0 gpm/sq.ft.: 2.0 psi/ft. (at 40°F)
  • 10.0 gpm/sq.ft.: 2.4 psi/ft. (at 40°F)
  • 15.0 gpm/sq.ft.: 2.4 psi/ft. (at 40°F)
  • 20.0 gpm/sq.ft.: 2.4 psi/ft. (at 40°F)
  • (Pressure losses are also indicated at 60°F, 80°F, and 100°F for various flow rates)

Applications

• Softening - Municipal
• Radium Removal
• Softening - Residential

Certifications

• WQA Gold Seal* (NSF/ANSI/CAN 61: Drinking Water System Components - Health Effects)
• Kosher Certified
• FDA Compliance** (Paragraph 21CFR173.25 of the Food Additives Regulations of the US FDA)

Note: NSF/ANSI-61 compliance requires conditioning with a minimum 20 bed volume rinse prior to first use.

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

Official datasheet (PDF)

Lenntech datasheet mirror