Datasheet summary
DIAION WA20
PDF datasheet mirror for DIAION WA20 (Mitsubishi). Verify with OEM before design.
Summary
Product identification
- Grade Name: DIAION™ WA20
- Type: Weak Base Anion
- Matrix: Styrene-DVB, Porous
- Functional Group: Polyamine
- Ionic Form: Free Base
DIAION™ WA20 is a polyamine type weakly basic anion exchange resin recommended for removal of strong mineral acids in water treatment.
Operating Conditions
- Maximum Operating Temperature: 100 ℃
- Operating pH Range: 0 - 9
- Minimum Bed Depth: 800 mm
- Service Flow Rate: 10 - 40 m/h
Regenerant (NaOH)
- Regenerant Concentration: 1 - 4 % NaOH
- Regenerant Level: 120 % of ionic load
- Regenerant Flow Rate: 2 - 6 m/h
- Total Rinse Requirement: 5 - 10 BV
Product Typical Properties
- Shipping Density: 660 g/L
- Mean Particle Size: 570 μm
- Particle Density: 1.08 g/mL
- Total Swelling (FB to Cl⁻): 19 %
- Whole Bead Count: 95 % min.
- Total Exchange Capacity: 2.5 meq/mL min.
- Water Content: 39 - 45 %
- Particle Size Distribution on 1180 μm: 5 % max.
- Particle Size Distribution thr. 300 μm: 1 % max.
- Effective Size: 0.40 mm min.
- Uniformity Coefficient: 1.6 max.
Hydraulic Characteristics
Pressure drop data are available in 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)
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.