Standard Feedthrough Common Specifications

Some of Ferrotec's Ferrofluidic® seal specifications are common to the majority of our feedthroughs.

Temperature Range (Uncooled) 20 – 210°F
(-6 – 100°C)
Water cooled units may exceed these temperatures. Most unites are bakeable to 150°C.
Vacuum Pressure 10-9 mbar Estimated Value. Actual performance will depend on system pumping speed and other gas loads.
Leakage Rate (mbar I/s) 10-11 mbar I/s Units not regularly tested to this level as it is beyond the capability of common vacuum equipment.
Gas compatibility inert gas For sealing in reactive environments, a flourocarbon-based ferrofluid may be required.
Housing Material 300 series stainless steel ISO 1.4301 or similar
Shaft Material 400 series stainless steel or
17-4 PH
ISO 1.4000 or similar
ISO 1.4542 or similar
Maximum shaft run-out 0.003"/0.076mm