Yes, proper lubrication is absolutely critical when installing a mechanical seal, but the lubricant must be chemically compatible with the seal's elastomeric components and the fluid being handled. Lubricating the secondary O-rings and seal faces during installation prevents friction damage, tearing, or hanging up during assembly. However, you must never run a mechanical seal completely dry during initial equipment startup, as lack of fluid lubrication generates extreme frictional heat that can destroy the precision lapped seal faces within seconds.
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