Step Procedure
6
With reference to
Figure 8-4, install the spring case so that the two opposed side
grooves are guided by the gland stud bolts. (The two pairs of opposed side grooves are
the same size.)
During installation, pay extra attention not to damage the surface of the stem. Note
that, when the Belleville springs are in the spring case, they should not be in contact
with the stem.
Spring case
Figure 8-4. Installation of the spring case (top view)
7 Install the packing flange, paying extra attention not to damage the surface of the
stem.
8
Apply the anti-seizure agent Never-Seez, made by Bostik, Inc., as indicated in
Table
8-3, to the threads on the gland nut end of the gland stud bolts and to the seating end
of the gland nuts, and screw the nuts on by hand.
8-4
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