Instruction Manual
D100397X012
ES Valve
July 2017
16
mark visible. Contact your Emerson representative immediately if a discrepancy between actual parts and approved parts
is suspected.
12. Properly lubricate the bonnet stud bolts. Install and tighten the bonnet hex nuts to the proper torque.
13. Install new packing and the metal packing box parts according to the appropriate arrangement in figure 3.
14. Install the packing flange. Properly lubricate the packing flange stud bolts and the faces of the packing flange nuts.
For ENVIRO‐SEAL or HIGH‐SEAL live‐loaded packing, refer to the note at the beginning of the Maintenance section.
For graphite packing, tighten the packing flange nuts to the maximum recommended torque shown in table 7. Then,
loosen the packing flange nuts, and retighten them to the recommended minimum torque shown in table 7.
For other packing types, tighten the packing flange nuts alternately in small equal increments until one of the nuts
reaches the minimum recommended torque shown in table 7. Then, tighten the remaining flange nuts until the
packing flange is level and at a 90‐degree angle to the valve stem.
15. Install travel indicator parts, stem locknuts, and mount the actuator on the valve body according to the procedure
in the appropriate actuator instruction manual.
Replacement of an Installed ENVIRO‐SEAL Bellows Seal (Stem/Bellows Assembly)
1. Remove the actuator and bonnet according to steps 1 through 6 of the Replacing Packing procedure of the
Maintenance section.
CAUTION
To prevent possible product damage, cover the opening in the valve in the following procedure to protect the sealing
surfaces and to prevent foreign material from getting into the valve body cavity.
2. With care, remove the ENVIRO‐SEAL stem/bellows assembly. If necessary, lift out the cage, also. Remove and
discard the existing bonnet gasket and bellows gasket. Cover the valve body opening to protect sealing surfaces
and to prevent foreign material from entering the valve body cavity.
Note
The ENVIRO‐SEAL stem/bellows assembly for easy‐e valves is available only with a threaded and drilled plug/adaptor/stem
connection. The existing valve plug can be reused with the new stem/bellows assembly or a new plug can be installed.
3. Inspect the existing valve plug. If the plug is in good condition, it can be reused with the new stem/bellows
assembly.
CAUTION
When removing/installing a valve plug on the ENVIRO‐SEAL stem/bellows assembly, the valve stem must not be rotated.
Damage to the bellows may result.
To avoid damaging parts, do not grip the bellows shroud or other parts of the stem/bellows assembly. Grip only the flat
areas on the stem where it extends out of the top of the bellows shroud.
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