Assembly: Installing the
End Caps
1. Hold the inner diameter corner radius side of the
backing ring towards you and link two backing
ring sections together at the puzzle joint as
shown in figure 4.
2.
On the contactor vessel side of the flange with
the gas port pointing up, assemble the linked
sections of backing ring.
3.
Add the remaining two backing ring sections to
complete the full backing ring assembly.
4.
As shown in figure 5, install two metallic tie bars
and two lifting rings over the indicated puzzle
joints.
NOTICE:
The position of the lifting rings, tie bars,
and puzzle joints are critical to product strength. Do
not deviate from the positions shown in figure 5.
Notes:
• Orient the lifting ring of the second end cap
180˚ from the first lifting ring.
•
When adding the tie bar, make sure it curves
the same way as the backing ring and
contactor vessel flange.
•
Nozzle orientation should be the same as the
original.
5.
Insert bolts with large flat washers completely
through the bolt holes to hold the backing rings
in place.
6.
Place the gasket over the bolts with the
contoured side of the gasket facing the
contactor vessel.
Puzzle Joint
Figure 4: Backing Ring
Figure 5: Flange
Lifting ring secured
over backing ring joint
Tie bar secured over
backing ring joint
Gas port
pointing up
Backing
ring joint
positions
Figure 6: Gasket and bolts on the
contactor vessel
