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DuPont™ Vespel® CR-6100 Installation Checklist


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? Contact Boulden Today

Please feel free to contact Boulden with your thoughts. Don’t forget to visit our blog for additional information or sign up for our newsletter!


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