Finish Thompson J100122 Bellows Seal Carbon Ceramic Viton
This is the factory bellows seal carbon ceramic viton for Finish Thompson GP22 and GP32 sealed centrifugal pumps. It is the mechanical shaft seal for the larger GP pumps, pairing a carbon face with a ceramic seat and a Viton bellows. It is built in carbon, ceramic and Viton FKM, which is what decides where it can safely be used.
It is one of the parts worth renewing on schedule instead of waiting for a fault. Dry running kills a mechanical seal faster than anything else, and a pump started against a closed suction can ruin one in seconds. Check the pump build before ordering, because these pumps are offered in more than one material and size combination and the alternatives look similar on the shelf.
Key Features
- Bellows Seal Carbon Ceramic Viton in carbon, ceramic and Viton FKM built to the original factory specification
- Carbon against ceramic faces with a Viton FKM bellows
- Standard seal option for the GP22 and GP32 pump
- 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 GP22 and GP32 sealed centrifugal pumps
- Chemical process duty on GP22 and GP32 pumps
- Overhaul of a pump that has begun to weep at the shaft
- 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: J100122
- Part Type: Bellows Seal Carbon Ceramic Viton
- Material: carbon, ceramic and Viton FKM
- Position: Between the pump shaft and the housing
- Fits: Finish Thompson GP22 and GP32 sealed centrifugal pumps
- Quantity Per Pump: 1
- Condition: New
Frequently Asked Questions
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.
Q: Is this the genuine manufacturer part?
Yes. It is the factory component built to the original specification rather than a pattern copy.
Q: Should anything else be replaced at the same time?
Whatever the teardown exposes. Elastomers and bushings are inexpensive and are best renewed while the pump is already apart.
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.
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 mechanical seal before you order.