Emerson Rosemount 3051CF Series Reference Manual page 66

Hardware installation
July 2020
Description
Differential pressure
Flange bolts
Gage/absolute pressure
Flange bolts
Flange/adapter bolts
(1) Rosemount 3051T Transmitters are direct mount and do not require bolts for process
connection.
1. Use the fingers to tighten the bolts.
2. Torque the bolts to the initial torque value using a crossing pattern (see
3. Torque the bolts to the final torque value using the same crossing pattern.
3.5.2 Impulse piping
Mounting requirements
Impulse piping configurations depend on specific measurement conditions. Refer to
Figure 3-10
Liquid measurement
• Place taps to the side of the line to prevent sediment deposits on the transmitter's
process isolators.
• Mount the transmitter beside or below the taps so gases can vent into the process line.
• Mount drain/vent valve upward to allow gases to vent.
Gas measurement
• Place taps in the top or side of the line.
• Mount the transmitter beside or above the taps so liquid will drain into the process line.
Steam measurement
• Place taps to the side of the line.
• Mount the transmitter below the taps to ensure that the impulse piping will stay filled
with condensate.
• In steam service above 250 °F (121 °C), fill impulse lines with water to prevent steam
from contacting the transmitter directly and to ensure accurate measurement start-up.
Note
For steam or other elevated temperature services, it is important that temperatures at the
process connection do not exceed the transmitter's process temperature limits.
66
(1)
for torque values).
for examples of the following mounting configurations:
Reference Manual
00809-0100-4774
Qty Size in. (mm)
4 1.75 (44)
4 2.88 (73)
4 1.75 (44)
2 2.88 (73)
Table 3-2
Rosemount 3051