DIAION PK228L

Summary

Product identification

• Grade Name: DIAIONTM PK228L
• Type: Strong Acid Cation
• Matrix: Styrene-DVB, Porous
• Functional Group: Sulfonic Acid
• Ionic Form: Na⁺

DIAIONTM PK228L is a porous type strongly acidic cation exchange resin with 14% cross-linkages, recommended for pure water manufacturing and processing.

Operating limits

• Maximum Operating Temperature: 120 ℃
• Operating pH Range: 0 - 14

Regeneration

• Regenerant: HCl, H₂SO₄
• Regenerant Concentration:
  • HCl: 4 - 10 %
  • H₂SO₄: 1 - 4 %
• Regenerant Level: 50 - 200 g/L
• Regenerant Flow Rate: 2 - 10 m/h
• Total Rinse Requirement: 2 - 10 BV

Mechanical / hydraulic

• Minimum Bed Depth: 800 mm
• Service Flow Rate: 10 - 60 m/h
• Shipping Density: 810 g/L
• Particle Density: 1.32 g/mL
• Mean Particle Size: 730 μm
• Whole Bead Count: 95 min.
• Particle Size Distribution on 1180 μm: 5 max. %
• Particle Size Distribution thr. 425 μm: 1 max. %
• Effective Size: 0.45 min. mm
• Uniformity Coefficient: 1.6 max.

Product water

• Total Swelling (Na⁺ to H⁺): 5 %
• Water Content: 37 - 43 %
• Salt Splitting Capacity: 2.05 min. meq/mL

Hydraulic Characteristics

The approximate pressure drop at various temperatures and flow rates for each meter of bed depth of DIAIONTM PK228L resin in normal down flow operation is shown in the graphs in the original document.

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