RPV Head O-Ring Groove Cleaner 


The Preferred Engineering O-Ring Groove Cleaner is designed to easily and effectively clean both O-Ring grooves simultaneously. The Cleaner is supplied with a support rail that is easily installed in sections and is supported through the RPV head stud holes. This guarantees true alignment of the machine with the grooves without regard for exact RPV head placement. The apparatus is self-propelled and is protected to terminate cleaning in the event of a drive stall. 


  • Easy rail and machine setup. 

  • Cleaning is terminated if the cleaner motion stalls. 

  • The cleaning media is not harmful to sealing surfaces. 

  • Connected to a HEPA unit trapping contamination. 

  • Common control unit with the RPV flange cleaner. 

  • Cleaning drums easily replaced.