The GF03 Long Mechanical Seal is an extended-type sealing solution specifically designed for Grundfos pump systems requiring longer installation dimensions and enhanced sealing stability. It is ideal for applications where standard seals are not sufficient due to space configuration or operational requirements.
This model features a robust and precision-engineered structure, combining silicon carbide and carbon materials for superior wear resistance and reliable sealing performance. The extended (Long) design improves alignment and stability during operation, making it suitable for continuous-duty systems.
Equipped with NBR, EPDM, or VITON secondary sealing options and stainless steel components, the GF03 Long ensures excellent resistance to corrosion, temperature variations, and aggressive media, delivering long service life and dependable operation.
- Extended Long type mechanical seal
- Designed for Grundfos pump systems
- Improved stability and alignment during operation
- Silicon carbide & carbon sealing faces
- Secondary seal options (NBR / EPDM / VITON)
- Stainless steel components (SUS304/SUS316)
- High resistance to wear, corrosion, and temperature
| seal size d(mm) | d 3 | d 6 | d 7 | i 1 | i 3 |
| 12 | 22 | 19 | 23 | 39.0 | 7.6 |
| 15 | 26 | 23 | 27 | 39.0 | 8.7 |
| 16 | 26 | 23 | 27 | 39.0 | 8.7 |
- Grundfos pump systems (extended configurations)
- Water treatment systems
- Industrial water applications
- Continuous-duty pump operations
- Utility and facility systems
- Applications requiring longer seal design