ROTODISK S – Rotary Union with axial mechanical seal
Your benefits
Extremely long service life
ROTODISK S unions are fitted with extremely wear-resistant hydrostatically relieved silicon carbide mechanical seals to ensure low frictional torque and minimal wear, accordingly. An automatic self-alignment system ensures that the axial face seals always have full surface contact – even when subject to high pressures and high speeds at the same time.
Reliable and robust
The micro-gap system allows emulsions to be switched off without any leakage impulse, permitting the system to run dry at full speed without being pressurized by medium pressure. Spindle or hybrid ball bearings installed in high-precision steel housings ensure robust and smooth running.
Maximum flexibility
To facilitate the transmission of different media such as emulsion, air or oil-air mixture, we offer a variant capable of handling all three operating modes. Integrated valves switch between the different media.
Technical data
| Media |
Emulsion, air, oil, oil-air mixture, water, low vacuum |
| Max. number of channels |
1 |
| Max. pressure [bar] |
200 |
| Max. speed [rpm] |
100,000 |
Suitable for operation with up to 3 media, leakage-free operation
ROTODISK S-HP
Specifically designed for high pressures occurring during deep-hole drilling
ROTODISK S-EBS
Cartridge design without ball bearings
ROTODISK D10
Special variant for grease, also available with 2 channels
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