CG8 K

Summary

Product identification

• Product Name: CG8-K
• Product Type: STRONG ACID CATION
• Polymer Matrix: Styrenic Gel
• Crosslinking: 8%
• Ionic Form: Potassium

Applications

• Softening - Industrial
• Sodium Removal

ResinTech CG8-K is a strong acid cation resin in the potassium form, intended for water softening and neutral salt cation exchange where sodium ion release is undesirable. It can be used interchangeably with sodium form CG8.

Typical Properties & Physical Characteristics

• Functional Group: Sulfonic Acid
• Physical Form: Spherical Beads
• Particle Size: 16 to 45 US Mesh (354 - 1190 μm)
• % < 50 mesh (300µm): < 1%
• Minimum Sphericity: 93%
• Uniformity Coefficient: 1.4
• Reversible Swelling (K to Na): 3% to 5%
• Capacity (meq/mL): 2.0
• Moisture Retention: 42% to 49%
• Shipping Weight: 49 - 51 lbs/ft³ (785 - 817 g/L)
• Color: Amber
• Regenerability: Yes

Operating Limits

• Maximum continuous temperature: 280°F (138°C)
• Operating pH range: 0 to 14 SU

Mechanical / Hydraulic

• Backwash Expansion:
  • 3.0 gpm/sq.ft. @ 40°F: 0% expansion
  • 6.0 gpm/sq.ft. @ 60°F: 20% expansion
  • 9.0 gpm/sq.ft. @ 80°F: 40% expansion
  • 12.0 gpm/sq.ft. @ 100°F: 60% expansion (Note: The graph indicates backwash expansion percentages based on flow rate and temperature. Exact values are visual approximations from the graph.)
• Pressure Loss:
  • The graph shows pressure loss (psi/ft of Resin) versus flow rate (gpm/sq.ft.) at different temperatures (40°F, 60°F, 80°F, 100°F).
  • See the official PDF for exact tabulated values.
• Minimum bed depth: 24 inches
• Maximum pressure loss: 25 psi

Feed Water

• Capacity and leakage data are based on: 2:1 Ca:Mg ratio, 500 ppm TDS as CaCO₃, 0.2% hardness in the salt and 10% brine concentration applied co-currently through the resin over 30 minutes.

Product Water

• Potassium Form Softening: CG8-K is regenerated with potassium chloride, producing softened water with reduced sodium content.
• Sodium Removal: CG8-K can remove sodium, with the resin preferring hardness over sodium.

Electrical

• No information available in the extract.

Suggested Operating Conditions

• Regenerant Concentration: 10 to 15 percent KCl
• 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.

Packaging Options

• 1 ft³ bags
• 1 ft³ boxes
• 1 ft³ drums
• 7 ft³ drums
• 42 ft³ supersacks

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