Emerson Rosemount 3051CF Series Reference Manual page 81

Reference Manual
00809-0100-4774
Adjust valve packing
Over time, the packing material inside a Rosemount manifold may require adjustment in
order to continue to provide proper pressure retention. Not all Rosemount manifolds have
this adjustment capability. The Rosemount manifold model number will indicate what
type of stem seal or packing material has been used.
The following steps are provided as a procedure to adjust valve packing:
Procedure
1. Remove all pressure from device.
2. Loosen manifold valve jam nut.
3. Tighten manifold valve packing adjuster nut ¼ turn.
4. Tighten manifold valve jam nut.
5. Re-apply pressure and check for leaks.
Postrequisites
Repeat the above steps if necessary. If the above procedure does not result in proper
pressure retention, replace the complete manifold.
Reference Manual
A. Transmitter
B. Vent (closed)
C. Isolate
D. Process (open)
Hardware installation
July 2020
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