Datasheet summary
DIAION PK220L
PDF datasheet mirror for DIAION PK220L (Mitsubishi). Verify with OEM before design.
Summary
Product identification
- Grade Name: DIAION™ PK220L
- Type: Strong Acid Cation
- Matrix: Styrene-DVB, Porous
- Functional Group: Sulfonic Acid
- Ionic Form: Na⁺
DIAION™ PK220L is a porous type strongly acidic cation exchange resin with 10% cross-linkages. It is recommended for manufacturing and processing pure water.
Operating limits
- Maximum Operating Temperature: 120 ℃
- Operating pH Range: 0 - 14
Feed water
- 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
Product water
- Salt Splitting Capacity: 1.9 meq/mL (min.)
Mechanical / hydraulic
- Minimum Bed Depth: 800 mm
- Service Flow Rate: 10 - 60 m/h
- Shipping Density: 800 g/L
- Mean Particle Size: 720 μm
- Particle Density: 1.29 g/mL
- Total Swelling (Na⁺ to H⁺): 8 %
- Whole Bead Count: 95 % (min.)
- Water Content: 41 - 47 %
- Particle Size Distribution on 1180 μm: 5 % (max.)
- Particle Size Distribution through 425 μm: 1 % (max.)
- Effective Size: 0.45 mm (min.)
- Uniformity Coefficient: 1.6 (max.)
The approximate pressure drop for DIAION™ PK220L resin during normal downflow operation is shown in graphs within the original datasheet.
Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.