Features
- Split housing design
- Multi-part seal rings, radially cut
- 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 = 40 … 340 mm (1.57″ … 13.39″)
Operating pressure:
p = vacuum … 20 bar (290 PSI) abs.
Operating temperature: t = -120 °C … +800 °C (-184 °F … +1,472 °F) for carbon,
max. 225 °C (437 °F) for PTFE compound
Sliding velocity:
vg = max. 150 m/s (492 ft/s) for carbon,
max. 40 m/s (131 ft/s) for PTFE compound
Radial play: ±1.0 … 5.0 mm (±0.04″ … 0.2″)
Axial movement: theoretically unlimited
Recommended wear guard: >300 HB (low pressure), >58 HRC (high pressure)
Materials
Seal ring: Carbon, PTFE compound
Housing: 1.4021, 1.4571, Hastelloy®, Titanium, Inconel®, others
Tension spring / detent: 1.4571, Hastelloy®, Titanium, Inconel®