Datasheet summary
CN8
PDF datasheet mirror for CN8 (ResinTech). Verify with OEM before design.
Summary
Product identification
- Product Name: CN8
- Product Type: STRONG ACID CATION
- Manufacturer: ResinTech, Inc.®
- Polymer Matrix: Styrenic Gel / Polystyrenic Gel
- Crosslinking: 8% CROSSLINKED
- Ionic Form: Sodium
- Functional Group: Sulfonic Acid
- Physical Form: Spherical Beads
- Color: Black
ResinTech CN8 is a solvent-free, premium grade, dark-colored, sodium form, 8% crosslinked gel strong acid cation resin. It is suitable for commercial, industrial, and residential softening applications and is WQA Gold Seal Certified for potable water.
Certifications
- WQA Gold Seal
- Meets NSF/ANSI 44: Residential Cation Exchange Water Softeners
- Meets NSF/ANSI-61: Drinking Water System Components - Health Effects
- Meets NSF/ANSI/CAN 372: Drinking Water System Components - Lead Content
Typical Properties & Physical Characteristics
- Particle Size: 16 to 50 US Mesh (297 - 1190 μm)
- % < 50 mesh (300µm): < 1%
- Minimum Sphericity: 90%
- Uniformity Coefficient: 1.6
- Reversible Swelling (Na to H): 5% to 9%
- Capacity (meq/mL): 2.0
- Moisture Retention: 42% to 49%
- Shipping Weight: 50 - 52 lbs/ft³ (801 - 833 g/L)
- Regenerability: Yes
Applications
- Softening - Industrial
- Demineralization
- Iron Removal
- Ammonia Removal
Iron Removal
CN8 has good capacity for ferrous iron. Iron content in the feedwater should not be more than 1 mg/L Fe per each 17 mg/L of hardness.
Ammonia Removal
CN8 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
- Maximum continuous temperature: 280°F (138°C)
- Minimum bed depth: 24 inches
- Backwash expansion: 25 to 50 percent
- Maximum pressure loss: 25 psi
- Operating pH range: 0 to 14 SU
Regenerant Options:
-
Sodium Cycle:
- Regenerant Concentration: 10 to 15 percent NaCl
- 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.
-
Hydrogen Cycle:
- Regenerant Concentration: 5 to 10 percent HCl or 1 to 8 percent H₂SO₄
- 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.
Mechanical / Hydraulic
Backwash Expansion
| gpm / sq.ft. | 0.0 | 3.0 | 6.0 | 9.0 | 12.0 |
|---|---|---|---|---|---|
| Percent of Expansion | 0 | 20 | 40 | 60 | |
| 40˚F | 0.0 | ||||
| 60˚F | 0.4 | 40 | 60 | 80 | 100 |
| 80˚F | 1.2 | ||||
| 100˚F | 2.4 |
Pressure Loss
| gpm / sq.ft. | 0.0 | 0.4 | 0.8 | 1.2 | 1.6 | 2.0 |
|---|---|---|---|---|---|---|
| psi / ft. of Resin | ||||||
| 40˚F | 0.0 | 5 | 10 | 15 | 20 | 25 |
| 60˚F | 0.0 | 5 | 10 | 15 | 20 | 30 |
| 80˚F | 0.0 | 10 | 15 | 20 | 25 | 35 |
| 100˚F | 0.0 | 10 | 15 | 20 | 30 | 35 |
Packaging Options
- 500 ml samples
- 1 ft³ bags
- 1 ft³ boxes
- 1 ft³ drums
- 7 ft³ drums
- 42 ft³ supersacks
Disclaimer
This extracted summary may not include all figures, footnotes, or revisions present in the official OEM PDF. Contractual data must always match the specific 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.