Features
- Chamber seal (modular design – can be combined in any order), optional with housing and lid
- Very small operation gap – low leakage
- Dry running
- 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
- One-piece seal ring with titanium bandage
- Both side balanced seal ring inside chamber for short-term backpressure operation
- Seal ring axially spring-loaded – no swinging up at pressure-less machine operation
Advantages
- High reliability
- Long-term operation time
- Maintainability
Operating range
Shaft diameter:
d = 20 … 200 mm (0.79″ … 7.87″)
Operating pressure:
p = vacuum … 250 bar (3,626 PSI) abs.
Operating temperature:
t = -120 °C … +225 °C (-184 °F … +437 °F)
Sliding velocity:
vg = max. 240 m/s (787 ft/s)
Radial play: ±1.0 mm (±0.04″)
Axial movement: theoretically unlimited
Recommended wear guard: >58 HRC
Materials
Seal ring: Carbon with titanium bandage
Chamber and housing parts: 1.4021, 1.4571, Hastelloy®, Titan, Inconel®, others
Secondardy seal (elastomer): Fluorocarbon rubber (Viton®), Nitrile-butadiene-rubber (Perbunan®), Perfluorocarbon rubber (Kalrez®)
Secondary seal (flat gasket): Statotherm®-HT/HD, KSiL C 4400