Features mechanical seal cobaseal
- Gas-lubricated
- Bi-directional
- Ready-to-fit cartridge unit
- Self cleaning 3D gas grooves
- Aerostatic and aerodynamic lift-off
Advantages mechanical seal cobaseal
- Extremely low leakage
- Double arranged (co-axial) dry gas seal with just one pair of seal faces
- Insensitive to oil contamination due to its special design
- Wear-free, non-contacting operation in all conditions
- Insensitive to radial vibrations due to axial sealing gap
- Slow-roll or turning operation capable (static lift-off)
- No limits regarding dew point of separation gas (silicon carbide instead of carbon)
- Lower N2 consumption than any other system
- N2 can be switched off during standstill – the gap will close and still provide the best oil sealing performance
- Best in class oil sealing by extremely small sealing gap and sling effect of rotating ring
Operating range mechanical seal cobaseal
- Shaft diameter:
29.5 … 355 mm (1.16″ … 13.97″) - Design pressure (mechanical integrity):
p = 0 … 70 bar (0 … 1000 PSI) - Normal operating pressure:
p = 2.7 bar (39.16 PSI) - Temperature:
t = -20 °C … +200 °C (-4 °F … +392 °F) - Sliding velocity:
vg = 0 … 150 m/s (0 … 492 ft/s)
Dew point: No limitation
Materials mechanical seal cobaseal
- Seal face: Silicon carbide*
- Seat: Ductile stainless steel*
- Shaft sleeve: Stainless steel TC-coated
- Secondary seals: FKM
- Metal parts: 1.4006
* With special EagleBurgmann high performance iDLC (in situ Diamond-Like-Carbon) coating
| Item | Description |
| 1 | Seal face, stationary |
| 2 | Seat, rotating |
| 3 | Thrust ring |
| 4 | Spring |
| 5 | Shaft sleeve and seat retainer |
| 6 | Housing (size matched to installation space) |
| D | Separation gas |
Recommended applications seal cobaseal Burgmann
- Oil and gas industry
- Refining technology
- Petrochemical industry
- Nitrogen
- Air
- Centrifugal compressors
- Blowers
