41
Donaldson Company, Inc.
involute
inlet
assembly
dirty air plenum
assembly
optional explosion
vent
hopper
assembly
sealant pattern
upper flange
Upper Flange
Sealant Application
bolt hole
tube sheet
Dirty Air Plenum Installation, Model RFWP shown
7. Lift the dirty air plenum assembly with tube sheet onto
the involute inlet assembly. For the high body inlet, this
assembly lifts directly onto the hopper flange. Properly
orient the dirty air plenum assembly to the hopper inlet
assembly and lower into place.
Note: It is critical that the orientation matches the
specification drawing to ensure there will be NO
interference with ladder and platform locations.
8. Insert all hardware and then tighten the entire connecting
perimeter.
9. Remove the angle iron lifting lugs.
10. Apply sealant to the perimeter of the tube sheet as shown
to prepare it for the clean air plenum installation.
4. Lower the tube sheet into position. Insert only the 5/8-in
hardware required to connect the tube sheet radial
stiffeners to the internal gussets and tighten.
Take precaution against pinching
when handling and installing the
tube sheet into the Dirty Air Plenum.
5. Apply sealant to the top of the involute inlet flange as
shown. For a high body inlet, apply sealant directly to the
top of the hopper flange.
6. Properly attach and lift dirty air plenum assembly with the
lifting lugs per note with Bolt-On Lifting Lugs illustration.
