Features
Developed in coorperation with MAN Energy Solutions, based on the extremely robust EagleBurgmann RoTechSeal
- Modular design
- As upgrade of MAN centrifugal compressors or for new projects
- Availabe as single, double, or tandem seal
- Gas-lubricated
- Uni- or bi-directional
- Ready-to-install unit
- Optionally with separation seal such as labyrinths, carbon rings or EagleBurgmann CobaSeal
Advantages
The RigiSeal is the efficient sealing solution when the supply gas is particularly contaminated (e.g., by particles/liquids). Due to the modular design principle, the seal can be adapted on a case-by-case basis for existing machines as well as for new projects. For this purpose, the respective seal features are defined according to the prevailing operating conditions and/or the result of the failure analysis.
RotechSeal Features
- “Smart Labyrinth”
- DiamondFace coating
- Self-cleaning 3D gas grooves
- Soft torque transmission
- Debris resistant dynamic sealing element
- Leakage optimization
- CobaSeal (co-axial separation seal)
Additional RigiSeal Features
- Improved seal gas extraction (Subsea Compressor Technology)
- Seal washing system
- Simplified support system
- Labyrinth as back-up seal (PTFE labyrinth)
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 = -200 °C … +230 °C (-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