Using Vespel® CR-6100 and reducing the wear ring clearances in your pumps is a great way to improve pump reliability, safety, and efficiency. It is simple to use in any workshop. The checklist below will help make sure your installation is a success!

The checklist below used along with Boulden’s Installation Guide for Vespel® CR-6100 will help make sure your installation is a success!



Checklist items



 Vespel® CR-6100 installed as the stationary part (in compression)



 Rotating/mating part is metal



 Operating temperature less than 260°C/500°F



 Service is not an abrasive slurry requiring hard-coatings or special alloys



 Metal bore is prepared for the press fit with a small chamfer or radius at leading edge



 Vespel® CR-6100 is installed with the correct press fit? (Tables 1a/1b)



 Vespel® CR-6100 is retained against differential pressure?



 The Vespel® CR-6100 component has clearance necessary for axial thermal expansion?

 (Table 4)



 Clearance is correct based on component type?

  • Horizontal pump parts (Tables 2a/2b)
  • Vertically suspended pump bushings (Tables 3a/3b)
  • Vertically suspended pump wear rings (Tables 3a/3b)
  • Throat bushings (Tables 2a/2b/3a/3b)



 Rotor turns freely once the pump is assembled?



 Vertical pump rotor turns freely after coupled in the field?



 High pressure throttle bushings made with PERF-Seal™ design? (Contact Boulden for details)


Do you have any questions or comments on the above list? Please feel free to contact Boulden with your thoughts.