Case Studies

Seized metal center stage bushing and composite center stage bushing

A seized metal center-stage bushing


Failed bronze shaft bushings

Failed bronze shaft bushings caused this vertical pump shaft to break, dropping the impellers into
the bowls

Since 1997, Vespel® CR-6100 has been helping process plants solve pump problems. This section details a range of pump design issues, operational issues, and service conditions where Vespel® CR-6100 has helped hydrocarbon processing plants and other process plants improve their pump reliability.

Consider Composite Materials for Your Problem Pumps

With engineered composite materials, you can eliminate the metal-to-metal contact points in the pump. The stationary components are converted to Vespel® CR-6100 or Boulden's B-Series and the rotating parts remain metal, creating a metal-to-composite interface. This helps the pump:

Because the risk of seizure is minimized, the clearance at the wear components can be reduced, creating additional reliability and efficiency benefits:

Low friction and dimensional stability of composite materials offer very low wear rates and long service life.

Additional Vespel® CR-6100 Case Studies:

Additional DuPont™ Vespel® CR-6100

Dupont™ Vespel® CR-6100 Stock Size
Dupont™ Vespel® Material Information
Vespel® CR-6100 Applications
Vespel® CR-6100 Resources

Contact Boulden To Learn More About Upgrading Your Pump Components to Composite Materials

Contact Boulden today with your application details to upgrade to Vespel® CR-6100, Boulden B-Series or Metcar. We have the material you need in stock and can ship immediately.

Seized metal center stage bushing and composite center stage bushing

A seized metal center-stage bushing


Failed bronze shaft bushings

Failed bronze shaft bushings caused this vertical pump shaft to break, dropping the impellers into
the bowls