Abstract
Various types of Condensate Polishing Grade resins with uniform particle size (UPS) are available from us since the first product of UPS resins was developed in 1983. Recently high cross-linked (XL) strong acid cation gel resins with UPS have been developed based on the requirements from nuclear power industry. A 12% XL resin with 550μm diameter was installed at three boiling water reactor (BWR) and one pressurized water reactor (PWR) plants in the U.S. and a 14% XL resin with 650μm, diameter was installed at two BWR plants in Japan. Those resins have been working well with excellent performance. Our recent field experiences in the U.S. and Japan including the high XL resins are summarized in this paper.