(4) Assembling the gland
Step Procedure
1 Insert the parts of the gland in the right order, referring to the notes that were taken
during disassembly and to the figure in
Figure 5-2 to Figure 5-4, which illustrates
the structure of the gland. If Azbil’s low-emission gland packing system is used, refer to
Chapter 8. Insert the parts all the way to the bottom with a pipe, etc. If PTFE yarn
packing is used, insert it with the cut part of the packing shifted by 180°.
2 Check that the O-ring for the packing follower is inside the gland box. If extra parts are
inserted or an incorrect amount of packing is inserted, the packing follower and packing
flange will not be in the right place.
3 Apply an agent for preventing galling* to the stud bolts and nuts. Tighten the packing
flange with the stud bolts and nuts. The nuts should be tightened to the torque speci-
fied in
Table 5-3.
WARNING
Because damaged or corroded bolts and nuts may damage the
valve and cause injury, replace them with new ones.
CAUTION
Observe the tightening torques indicated in the user's manual
when tightening bolts and nuts.
* Use Never-Seez made by Bostik, Inc., or the equivalent.
5-11
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