LUBRICATING THE MECHANICAL SEAL FACES. 18-9

Do you have to put a lubricant of some type on the mechanical seal faces before you press them together? The answer is NO!

In some instances the lubricant can do harm:

Most seal applications use a carbon/ graphite face running against a hard face (silicon carbide as an example). The graphite will leech out of the carbon/graphite and deposit on the hard face. This is the black ring you see on the hard face.

LUBRICATING THE RUBBER PARTS OF THE SEAL

Lubricants are used on the elastomers to make installation easier, but you must be careful:

For information about my CD with over 600 Seal & Pump Subjects explained, click here  

 Link to Mc Nally home page www.mcnallyinstitute.com