| Pump | Internal | External | ||
| Buna | Viton | Buna | Viton | |
| #4 | 9355BO | 9355VO | 9222BO | 9222VO |
| #5 | 9356BO | 9356VO | 9223BO | 9223VO |
| #6 | 9357BO | 9357VO | 9224BO | 9224VO |
| #8 | 9359BO | 9359VO | 9499BO | 9499VO |
Please follow the instructions below to determine which seal you need for your pump.
Buna vs Viton, what's the difference?
Buna is the standard rubber material used in Dairy applications and is rated up to 250 degrees.
Viton is rated for higher temperatures and has a longer life when exposed to harsher cleaning chemicals.
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Model
Thomsen Pump models can be easily found by taking a 4" OD is a #4 5" OD is a #5 6" OD is a #6 8" OD is a #8
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Internal Pump Diagram Internal Seal Kits Include: Head O-Ring Ceramic seal Carbon Seal / spring Impeller clips |
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External Pump Diagram External Seal Kits Include: Carbon Seal |
