Can a mechanical shaft seal operate and survive without lubrication?
In a compressor germaneness where operation is oil free, but the shaft must be well sealed against leaks and construction costs must be kept to a lowest, a mechanical shaft seal fits all design specifications but I prepare for a lack of lubrication may
There are seals that use a ferrofluid that contains particles that set in the presence of a magnetic field. They make a gas tight and watery tight seal. Since they are a form of liquid they are immune to the antagonism found in solid surfaces.

By Kathy A. Smith The profession of marine seismic survey companies is becoming more and more critical as the coterie's recoverable oil and gas reserves continue to be a concern. The search for new carbon deposits ranges farther and farther offshore,