Follow these rules and you’ll be on the road to better pump reliability
A Fresh Look
We just completed our series on upgrading pumps with DuPont™ Vespel® CR-6100, getting into details on how to upgrade various horizontal and vertical pump types. We discussed reducing the clearance of the wear rings, upgrading throttle bushings with the PERF-Seal design, and upgrading vertically suspended pump shaft bearings.
Today, let’s try to condense it all down into a short list of guidelines which we can apply to just about any pump. Follow these rules and we can ensure we are using Vespel® CR-6100 properly and improving our pump reliability.
7 Rules for Using DuPont™ Vespel® CR-6100
- Stay under the temperature limit of 500 F (260 C)
- Only stationary parts, mounted in compression
- Shoulder on the low pressure side to retain the part against differential pressure
- Avoid extremely abrasive services such as slurries, bottoms, or slops
- Press fit, clearance, and axial length of part from the Boulden Installation Guide
- Pump rotor must turn freely when the pump is assembled and ready for commissioning
- Use PERF-Seal™ design for throttle and center bushings of multi-stage pumps
What do you think?
Did we miss anything? Contact us to let us know your ideas.
For details on how to install Vespel® CR-6100 into nearly any pump type, download the Boulden Installation Guide.