Reactor Water Cleanup

The Reactor Water Cleanup (RWCU) system in a BWR plant is used to remove contaminants from the reactor water. Powdex® precoat systems are installed in many plants and ion exchange deep beds are used in others. The reactor water is cooled, treated by the RWCU system, and returned to the recirculation system. High quality Ecodex® or Powdex products are precoated and provide simultaneous filtration and deionization. Gravex® Nuclear Grade resins may be used in the deep beds. Graver Technologies products offer excellent RWCU performance.

• Ecodex and Powdex products with lowest leachables
• Aegis® Microslot precoatable filter septa for the best precoat performance
• Ultra low chloride Powdex anion limits leachable chlorides and spiking in the reactor
• Ultra low chloride Gravex anion limits leachable chlorides and spiking in the reactor
• Mixed bed with high crosslinked cation for higher capacity and greater stability

Graver Product Selection

ProductApplication Area

Ecodex P-205-H High capacity powdered mixed bed

‍Powdex Premix 22H, 42H Excellent filtration, powdered mixed beds

‍Powdex PAO with PCH Precoatable powdered cation & anion

‍PowerGuard Precoat Septa Backwashable metallic septa

‍Gravex GR 1-9 US Ultra (OH) Nuclear Grade Ultra low chloride anion

‍Gravex GR 2-0 NG (H) Nuclear Grade cation

‍Gravex GR 3-9 NG (H/OH) Nuclear Grade mixed bed

‍Gravex GR 3-16 NG (H/OH) Nuclear Grade mixed bed with high capacity cation

‍

‍