Idex FITZPATRICK D6B Operating Instructions Manual page 13

The Fitzpatrick Company
D6B Manual Ver 1_24 Jan 2012-DRAFT.doc
3.3.2 Lip Seal Air Purge
The lip seal air purge is used on machines to keep product from migrating past the seal lips.
It also aids in dissipating heat build up on the rotor shaft.
On inerting machines, nitrogen would be used as the process gas in place of air.
Mill Shaft Seal Air Purge
A Unit of Corporation Page 23 of 49