Seal HBCoba Features
- Gas-lubricated
- Bi-directional
- Ready-to-fit cartridge unit
- Self cleaning 3D gas grooves
- Aerostatic and aerodynamic lift-off
Seal Coba Material
- Seal face: Silicon carbide
- Seat: Ductile stainless steel
- Shaft sleeve: Stainless steel TC-coated
- Secondary seals: FKM
- Metal parts: 1.4006
Seal Coba seal Advantages
- 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
Seal HBCOBA Recommended applications
Oil and gas industry
Refining technology
Petrochemical industry
Nitrogen
Air
Centrifugal compressors
Blowers