Emerson Rosemount 2051 Reference Manual page 46

Hardware Installation
September 2020
1. Carbon steel (CS) head markings
2. Stainless steel (SST) head markings
3. Alloy K-500 head marking
Note
The last digit in the F593_head marking may be any letter between A and M.
3.4.2 Impulse piping
Mounting requirements
Impulse piping configurations depend on specific measurement conditions. Refer to
Figure 3-8
Liquid flow measurement
• Place taps to the side of the line to prevent sediment deposits on the process isolators.
• Mount the transmitter beside or below the taps so gases vent into the process line.
• Mount drain/vent valve upward to allow gases to vent.
Gas flow measurement
• Place taps in the top or side of the line.
• Mount the transmitter beside or above the taps so to drain liquid into the process line.
Steam flow measurement
• Place taps to the side of the line.
• Mount the transmitter below the taps to ensure that impulse piping will remain 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 startup.
46
for examples of the following mounting configurations:
Reference Manual
00809-0100-4107
Rosemount 2051 Pressure Transmitter