Some of Ferrotec’s Ferrofluidic® seal specifications are common to the majority of our feedthroughs.
Temperature Range (Uncooled)
Water cooled units may exceed these temperatures. Most units are bakeable to 150°C.
Estimated Value. Actual performance will depend on system pumping speed and other gas loads.
10–11 Std cc He/s
Units not regularly tested to this level as it is beyond the capability of common vacuum equipment.
For sealing in reactive environments, a flourocarbon-based ferrofluid may be required.
300 series stainless steel
ISO 1.4301 or similar
400 series stainless steel or 17–4 PH
ISO 1.4000 or similar
ISO 1.4542 or similar
Maximum shaft run-out