Page 61 - Fall 2023 EDM Today
P. 61

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            OPTIONS TO CONSIDEROPTIONS TO CONSIDER

                                                                SUGGESTED CONFIGURATIONSUGGESTED CONFIGURATION
                                                              Recently, I designed a head connection system (see
          Tank Output Monitoring: Consider adding a conductiv-
                                                              Figure 6) for an aerospace client that incorporates all
          ity status light to monitor the quality of the tank output
          water. This will warn you that a tank needs to be changed
                                                              the options into a compact, professional installation that
                                                              allows tank changeover in less than a minute.
          prior to your process shutting down due to water quality
          issues. (See Figure 4)
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                                                                                    Figure 6



                                                                VIRGIN VS REGENERATED RESINVIRGIN VS REGENERATED RESIN
                                                              There are those who insist that virgin resin gives purer
                                                              outlet water, has greater capacity, and has better pH con-
                                                              trol than regenerated resin. Let’s examine each of these
                                                              claims:
                                Figure 4
                                                              Water Quality – Water quality is directly related to the   TECHTIPS
                                                              number of active ionic sites imparted to each bead as
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          Safety Screen: Consider adding a safety screen to the
                                                              a result of the chemical processing of the resin beads.
          bottle output fl ow to guard against stray resin beads
                                                              Since the process of regeneration is similar to that used
          contaminating your machine in the event of an internal
                                                              in making new resin, the care taken in the processing
          bottle failure. (See Figure 5)
                                                              will have a direct effect on the water quality produced
                                                              by either virgin or regenerated resin. In fact, some highly
                                                              regarded domestic virgin resin suppliers purchase low
                                                              quality imported virgin resin and then regenerate it to
                                                              bring it up to USA standards. Thus, the virgin resin you
                                                              purchase may already have been regenerated once, but
                                                              in reality it makes little difference.

                                                              Capacity – The argument presented previously applies
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                                                              here also.
                                                              pH – The effects of pH on resin system outlet water are
                                                              strictly related to the care taken in the rinsing procedures
                                                              utilized after the chemical processing of the resin beads
                                Figure 5
                                                              in either the virgin resin or regenerated resin manufactur-
                                                              ing processes.

                                                              If you are utilizing a top quality regeneration house, the
                                                              virgin vs regenerated argument doesn’t hold up.

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