15
Donaldson Company, Inc.
Involute Inlet Assembly
Note: For High Inlet Models, see “Dirty Air Plenum with High
Body Inlet Assembly” section.
1. Place the involute body panels onto a flat, clean surface.
If there is no suitable surface, use the tube sheet as a
template. Do NOT apply sealant between tube sheet
and body panels. The 90° body involute inlet should be
reserved and set into position last.
Sealant Application Detail*
sealant
pattern
external
flange
bolt
hole
flange
edge
sealant
1/8-in
from flange
edge
90 body involute inlet
(installed last)
o
apply sealant
(per Detail*)
apply sealant
(per Detail*)
involute
body
panel
apply sealant
(per Detail*)
Involute Body Panel Assembly
Prior to setting an adjacent panel, apply sealant to all
external flanges within 1/8-in from flange edge as shown.
Once the body panels are bolted and joined with the 1/2-
in hardware, apply sealant to the 90° body involute inlet
and set it into place.