General description

The CR-6100 grade of DuPont™ Vespel® parts and shapes is a composite material consisting of carbon fibers held in a Teflon® fluorocarbon resin matrix. Vespel® CR-6100 has been installed in thousands of pumps in refineries, chemical plants, power plants, and other fluid processing facilities since 1996. It has replaced metal and other composite materials used for pump wear rings, throat bushings, and line shaft bearings to help users increase pump reliability and performance. The properties of Vespel® CR-6100 help to reduce the risk of pump seizure and allow internal rotating-to-stationary part clearances to be reduced by 50% or more.

Fluid processing industries have embraced the use of composite materials in pumps to reduce vibration, increase mechanical seal life and MTBR (mean time between repair), reduce the risk of seizure, increase efficiency, and reduce repair costs. The API 610, 10th Edition (ISO standard 13709), the latest centrifugal pump standard from the American Petroleum Institute (API), recognizes the use of composites to achieve these benefits.


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