Service Support - Emerson Rosemount 3051S Series Reference Manual

Reference Manual
00809-0100-4801, Rev HA
Table 5-2. Bolt Installation Torque Values
ASTM-A-193-B7M—Option L5
ASTM-A-453-660—Option L7
ASTM-A-193-B8M—Option L8
4. If you replaced the PTFE SuperModule O-rings, re-torque the flange bolts after installation to
compensate for cold flow.
5. Install the drain/vent valve.
a. Apply sealing tape to the threads on the seat. Starting at the base of the valve with the threaded
b. Take care to place the opening on the valve so that process fluid will drain toward the ground and
c. Tighten the drain/vent valve to 250 in-lb (28.25 N-m).
Note
After replacing O-rings on Range 1 Transmitters and re-installing the process flange, expose the
transmitter to a temperature of 185 °F (85 °C) for two hours. Then re-tighten the flange bolts in a cross
pattern, and again expose the transmitter to a temperature of 185 °F (85 °C) for two hours before
calibration.
5.5

Service support

To expedite the return process outside of the United States, contact the nearest Emerson
representative.
Within the United States, call the Emerson Instrument and Valves Response Center using the
1-800-654-RSMT (7768) toll-free number. This center, available 24 hours a day, will assist you with any
needed information or materials.
The center will ask for product model and serial numbers and will provide a Return Material Authorization
(RMA) number. The center will also ask for the process material to which the product was last exposed.
Individuals who handle products exposed to a hazardous substance can avoid injury if they are informed
of and understand the hazard. If the product being returned was exposed to a hazardous substance as
defined by OSHA, a copy of the required Material Safety Data Sheet (MSDS) for each hazardous
substance identified must be included with the returned goods.
Emerson Instrument and Valves Response Center representatives will explain the additional information
and procedures necessary to return goods exposed to hazardous substances.
Troubleshooting
Bolt material
CS-ASTM-A449 Standard
316 SST—Option L4
Alloy K-500 —Option L6
end pointing toward the installer, apply two clockwise turns of sealing tape.
away from human contact when the valve is opened.
Initial torque value
300 in-lb (34 N-m)
150 in-lb (17 N-m)
300 in-lb (34 N-m)
300 in-lb (34 N-m)
150 in-lb (17 N-m)
150 in-lb (17 N-m)
Troubleshooting
October 2018
Final torque value
650 in-lb (73 N-m)
300 in-lb (34 N-m)
650 in-lb (73 N-m)
650 in-lb (73 N-m)
300 in-lb (34 N-m)
300 in-lb (34 N-m)
™
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