Features
The efficient sealing solution with advanced robustness against seal gas supply contamination(particles/liquids)
- Gas-lubricated
- Uni- or bi-directional
- Ready-to-fit cartridge unit
- Available for all seal arrangements: single, double, tandem
- Based on proven DGS or PDGS design
- Separation seals as labyrinths, carbon rings or CobaSeal optional
Advantages
The reliable DGS or PDGS is made even more robust by design measures and features:
- “Smart Labyrinth”
- DiamondFace-coating
- Self-cleaning 3D gas grooves
- Soft torque transmission
- Debris resistant dynamic sealing element
- Leakage optimization
Operating range
Shaft diameter:
d = up to 410 mm (16.14″)
Pressure:
p = up to 450 bar (6,525 PSI) and more
Design-temperature:
t = (-328 °F … +446 °F)
Sliding velocity:
vg = up to 227 m/s (744 ft/s)
Project specific special designs possible
Materials
Seal face: Silicon carbide with DLC- or DiamondFace-coating
Seat: Silicon carbide with DLC- or DiamondFace-coating
Secondary seals: PTFE or FKM
Metal parts: 1.4006, 1.4313-QT650, 1.4418, 1.4542, Inconel® or other stainless steels