Thordon Bearings Component
SeaThigor Mechanical Face Seal
Mechanical face seal for 300-750 mm water-lubricated propeller shafts, with silicon carbide faces and an inflatable safe-return-to-port emergency seal.
Description
SeaThigor is a mechanical face seal for water-lubricated propeller shafts from 300mm (11.8") to 750mm (29.5") on yachts, cruise ships, merchant ships and naval vessels. It evolved from a design first tested in 2003 and is designed for maintenance-free life with no visible leakage into the engine room.
Key features
- Silicon carbide against silicon carbide seal faces with Thordon elastomers
- Outside-pressurized, balanced hydraulic design with enclosed housing; water pressure keeps the faces closed
- Improved stability under pressure fluctuations; tolerates axial and radial shaft excursions
- Metal compression springs maintain constant face closing forces
- Safe-return-to-port mode activates an inflatable seal so the vessel can proceed at reduced speed if the faces are damaged
Specifications
| Shaft size | 300 mm (11.8") to 750 mm (29.5") |
|---|---|
| Seal faces | SiC against SiC |
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