Vespel® Case Studies

Krytox does not burn Combating Run-Dry Failure in Industrial Washing Pumps
DuPont™ Vespel® CR-6100 line-shaft bearing parts prove they can survive and maintain operation of a vertical pump during frequent run-dry events.
A Layne & Bowler 3-stage vertical pump is used to wash out bulk railcars before loading them with polyethylene and polypropylene at a resin plant in La Porte, Texas, U.S.A.. The process fluid is water and washing debris. Process temperature is ambient.More
Krytox does not burn Pump’s HF-Resistant Backup Bearings Help Combat Process Leaks
DuPont™ Vespel® CR-6100 parts withstand anhydrous hydrogen fluoride (HF) and resist wear in five years of service as backup shaft bearings in a centrifugal pump.
A Chempump NC series canned motor pump is used to load anhydrous HF acid into tank cars at a DuPont plant in Texas. The pump is equipped with backup shaft bearings made of Vespel® CR-6100. The pump’s primary shaft bearings are made of silicon carbide. The process fluid provides bearing lubrication. Process temperature is ambient. More
Krytox does not burn When Hot Well Pumps Run Dry, Vespel® CR-6100 Keeps Them Running
Switching to DuPont™ Vespel® CR-6100 parts for line shaft bearings and stationary wear rings helped eliminate seizure failures in condensate return pumps at a California oil refinery.
About three times a year, run-dry conditions were causing failure of line shaft bearings or stationary wear rings in two vertical pumps for hot well condensate (water) at a major oil refinery. Seizing was the most common failure mode. Process temperature is 180° F (82°C).More
Krytox does not burn Vespel® CR Grade Materials Deliver Chemical- and Creep-Resistant Parts
Vespel® CR grade pump case wear rings, throat bushings and impellers improve refinery oil and gas pump efficiency.
Vespel® CR grade pump case wear rings, throat bushings and impellers improve refinery oil and gas pump efficiency.More