Emerson Rosemount 2051 Reference Manual page 59

Reference Manual
00809-0100-4107
6. Finally, to return the transmitter to service, open the low side isolate valve and vent
3.5.5 Adjusting 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.
Reference Manual
A. (Plugged)
B. Isolate (open)
C. Process
D. Equalize (closed)
E. Equalize (closed)
F. Drain vent (closed)
G. Process
H. Isolate (closed)
I. (Plugged)
valve.
The vent valve can remain open or closed during operation.
A. (Plugged)
B. Isolate (open)
C. Process
D. Equalize (closed)
E. Equalize (closed)
F. Drain vent (closed)
G. Process
H. Isolate (open)
I. (Plugged)
Hardware Installation
September 2020
59