Instruction Manual

Instruction Manual
D103545X012
Control-Disk NPS 14-36
April 2011
12
Figure 7. Anti‐Blowout Design Details
C0758‐1
CUTAWAY, INTERNAL DETAILS
CUTAWAY, ENVIRO-SEAL
PACKING ASSEMBLY
34B7524‐B
PACKING
FOLLOWER
HEX
NUT
STUD
HEX
JAM
NUT
ANTI
BLOWOUT
FOLLOWER
PACKING
BELLEVILLE
SPRINGS
CAUTION
Never use a wrench or pliers on the splined (upper) shaft (key 3). A damaged shaft could cut the packing and allow leakage.
1. Before loosening any parts on the valve, release the pressure from the pipeline. Then, remove the hex nuts (key 15)
and lift off the packing follower (key 11).
2. Remove the hex jam nuts (key 17) and the anti‐blowout flange (key 10). Remove the packing follower (key 12).
Refer to figure 7 for details of the anti‐blowout design parts.
The packing is now accessible.
3. Use a packing extractor to remove packing. Insert the corkscrew‐like end of the tool into the first piece of packing
and pull firmly to remove the packing. Repeat this process until all packing parts have been removed.