AmberLite PWA7

Summary

Product identification

• Product Name: AmberLite™ PWA7 Ion Exchange Resin
• Description: Drinking Water-grade Resin for Selective Chromate Removal
• Application: Selective chromate removal in a non-regenerable system

Typical Properties

Physical Properties

• Copolymer: Styrene-divinylbenzene
• Matrix: Gel
• Type: Strong acid cation
• Functional Group: Sulfonic acid
• Physical Form: White to amber, translucent, spherical beads
• Ionic Form as Shipped: Na⁺
• Total Exchange Capacity: ≥ 2.2 eq/L
• Water Retention Capacity: 38 – 45%
• Particle Size:
  • Particle Diameter: 350 ± 50 µm
  • Finer than 300 µm: ≤ 1.1 eq/L
  • Coarser than 1180 µm: ≤ 0.5%
• Density: 830 g/L

Suggested Operating Conditions

• Maximum Operating Temperature: 40°C (104°F)
• pH Range (Service Cycle): 5 – 6.5
• pH Range (Stable): 0 – 14

Hydraulic Characteristics

Estimated bed expansion and pressure drop are shown in figures which require consulting the original PDF. The necessary flowrate for a desired bed expansion at other water temperatures can be calculated using provided equations. Pressure drop expectations are valid at the start of the service run with clean water and a well-classified bed.

Conditioning and Limits of Use

AmberLite™ PWA7 Ion Exchange Resin is suitable for potable water applications after an initial commissioning up-flow rinse of 20 bed volumes of water at ambient temperature at the service flowrate. The operating capacity depends on operating and feedwater conditions.

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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