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Instruction Manual
D103298X012
Figure 4. Packing Arrangement Details
GE39901‐A
PTFE V‐RING
GE40113‐A
SINGLE PTFE PACKING
NOTES:
1
WITH CONDUCTIVE PACKING, THE FEMALE ADAPTOR IN PTFE V‐RING PACKING IS CARBON‐FILLED PTFE.
2
APPLY LUBRICANT.
THESE TWO SURFACES SHOULD REMAIN PARALLEL AS YOU ALTERNATELY AND EVENLY TIGHTEN THE PACKING NUTS (KEY 28).
3
Under normal conditions, the packing nuts should not require re‐tightening. However, when servicing, if the springs
do not remain at the target load of 85% compression, retighten the packing box nuts according to the following
procedure:
1. Tighten the packing flange nuts alternately and evenly, keeping the packing flange parallel with the valve flange
(see figure 4), until the Belleville springs are compressed 100% (or completely flat).
D For PTFE packing, loosen each packing flange nut one half turn (180_ of rotation).
D For Graphite packing, loosen each packing flange nut one quarter turn (90_ of rotation).
The target load of 85% compression has now been reached. If leakage continues, replace the packing components as
described in the following procedures.
STANDARD PACKING
ENVIRO‐SEAL PACKING
GE39986‐A
GRAPHITE RIBBON
GE40118‐A
GRAPHITE PACKING
Control-Disk Valve
June 2017
9
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