Finish Thompson A101938 PVDF Impeller 3-1/2 Inch with Carbon Bushing
Finish Thompson supplies the A101938 as the pvdf impeller 3-1/2 inch with carbon bushing for KC11 magnetic drive pumps. It is the three and one half inch trim impeller, supplied with its carbon bushing and the magnet set that couples it to the drive. It is built in PVDF with a carbon bushing, which is what decides where it can safely be used.
Most pumps see this part replaced well before the pump itself needs attention. Replace it when the vanes are worn or chemically attacked, or when the bushing has enough play to let the impeller touch the barrier. Confirm the material and size against your pump before ordering, as the same position is offered in several variants across this range.
Key Features
- PVDF Impeller 3-1/2 Inch with Carbon Bushing in PVDF with a carbon bushing built to the original factory specification
- Three and one half inch trim for reduced duty points
- Carbon bushing suited to occasional dry running
- Sized and finished to drop straight into the position it came from
- Inexpensive component whose failure takes the whole pump out of service
Applications
- Finish Thompson KC11 magnetic drive pumps
- KC11 pumps set up for a lower flow and head duty
- Rebuild after bushing wear has allowed contact inside the barrier
- Scheduled overhaul and annual inspection of the pump
- Repair of a pump taken out of service after a leak or a loss of performance
Specifications
- Brand: Finish Thompson
- Manufacturer Part Number: A101938
- Part Type: PVDF Impeller 3-1/2 Inch with Carbon Bushing
- Material: PVDF with a carbon bushing
- Position: Pump wet end
- Fits: Finish Thompson KC11 magnetic drive pumps
- Impeller Diameter: 3-1/2 inch
- Bushing: Carbon
- Quantity Per Pump: 1
- Condition: New
Frequently Asked Questions
Q: What causes most premature failures on this part?
Running the pump outside what it was specified for, whether that is temperature, viscosity, dry running or an incompatible chemical.
Q: Does fitting this affect the pump warranty?
Using the factory part keeps the pump to its original specification, which is what any warranty position depends on.
Q: How should the pump be flushed before service?
With a fluid known to be compatible, so the parts can be handled safely and the old chemical is not carried into the rebuild.
Q: Can the pump be run briefly without this part?
No. Every component in the wet end carries a load or seals a joint, and running incomplete risks far costlier damage.
Not sure this is the right part? Send us a Picture of the pump plate on your pump and the CLR Marine team will confirm the correct impeller before you order.