Emerson Rosemount 2051 Series Quick Start Manual page 9

October 2023
See
4. Verify the flange bolts are protruding through the sensor
module bolt holes before applying pressure.
Table 1-1: Torque values for the flange and flange adapter bolts
Bolt
material
CS
SST
1.6 O-rings
The two styles of Rosemount flange adapters (Rosemount
3051/2051/2024/3095) each require a unique O-ring (see
Use only the O-ring designed for the corresponding flange adapter.
WARNING
Failure to install proper flange adapter O-rings may cause process
leaks, which can result in death or serious injury.
The two flange adapters are distinguished by unique O-ring grooves.
Only use the O-ring that is designed for its specific flange adapter, as
shown in
flow, which aids in their sealing capabilities.
Quick Start Guide
Table 1-1 for final torque value.
Head markings
316
316
R
Figure 1-3. When compressed, PTFE O-rings tend to cold
B7M
B8M
316
STM SW
316 316
Quick Start Guide
Initial Final torque
torque
300 in.-lb. 650 in.-lb.
150 in.-lb. 300 in.-lb.
Figure 1-3).
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