Features
- Multi-part seal rings, radially cut
- Split housing design
- Very small operation gap – low leakage
- Dry running
- Self-adjusting seal rings
- Seal rings bear radial shaft movements
- Compensates axial shaft movements
- No sealing components mounted on the shaft and hence no additional shaft vibrations
- Seal rings running contact-free – sliding faces and machine consume no additional power
Advantages
- Easy installation by split housing design (shaft removal not required)
- Long-term operation time
- Maintainability
- Segmented seal rings for easy replacement
Operating range
Shaft diameter:
d = 45 … 160 mm (1.77″ … 6.3″)
Operating pressure:
p = vacuum … 1.5 bar (22 PSI) abs.
Operating temperature: t = -120 °C … +500 °C (-184 °F … +932 °F) for carbon,
max. 225 °C (437 °F) for PTFE compound, max. 300 °C (572 °F) with grease
Sliding velocity: vg = max. 150 m/s (492 ft/s) for carbon, max. 40 m/s (131 ft/s) for PTFE compound
Radial play: ±2.5 … 5.0 mm (±0.1″ … 0.2″)
Axial movement: theoretically unlimited
Recommended wear guard: >300 HB (low pressure)
Materials
Seal ring: Carbon, PTFE compound
Housing: 1.4021, 1.4571
Tension spring / detent: 1.4571