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Dupont Vespel CR-6100 for boiler pumps

Make your boiler feed pump more reliable and efficient with
Vespel® CR-6100.


Building a Better Boiler Feed Pump with Vespel® CR-6100:              


A fertilizer plant in Canada installed 2 boiler feed pumps. They were originally sized to run with one pump with a 100% capacity spare in stand-by. Soon after start-up, however, the pumps experienced problems:

  • Seizure at the wear rings. In order to run reliably, the clearance at the wear rings was increased from 0.016” (0.40 mm) to 0.020” (0.50 mm)
  • Increased wear ring clearance lead to reduced output capacity and the need to run both pumps in parallel
  • Running both pumps created a risk of reduced boiler capacity whenever a pump was shut down and resulted in large energy losses

What they did:

  • Upgraded case rings, throttle bushing, and center-stage bushing to Vespel® CR-6100
  • Reduced the clearance at the wear components to 0.008” (0.20 mm)
  • Verified concentricity of the rotor and quality of all fits through good repair procedures

Results of adding Vespel® CR-6100:

  • Pump seizures were eliminated
  • The plant could run at full capacity with 1 pump, regaining 100% spare capacity and superior plant availability
  • Changing from 2-pump operation to 1-pump operation saved over $30,000/year in power, paying for the upgrade in a matter of months

Additional DuPont™ Vespel® CR-6100

Dupont™ Vespel® CR-6100 Standard Stock Sizes
Dupont™ Vespel® Machined Parts
Vespel® CR-6100 Applications
Problems Vespel® CR-6100 Solves /Case Studies
Industries Vespel® CR-6100 Serves
Vespel® CR-6100 Resources

Contact Boulden today to learn more about the Vespel® CR-6100

If you have a boiler feed water pump which is giving you problems, or costing too much money to run due to low efficiency, contact us today to discuss upgrading the pump with Vespel® CR-6100. We have upgraded boiler feed water pumps across a wide range of industriespower plants, refineries, paper mills, petrochemical plants, and even vegetable processing plants. Or learn more about Vespel® CR-6100 by subscribing to our newsletter!