Emerson Rosemount 3051 Series Quick Start Manual page 12

Quick Start Guide
Procedure
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.
See
4. Verify the flange bolts are protruding through the sensor module
bolt holes before applying pressure.
2.1.5 O-rings with flange adapters
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 below.
Figure 2-11: O-ring Location
A. Flange adapter
B. O-ring
C. PFTE-based profile (square)
D. Elastomer profile (round)
Whenever the flanges or adapters are removed, visually inspect the O-rings.
Replace them if there are any signs of damage, such as nicks or cuts. If you
replace the O-rings, re-torque the flange bolts and alignment screws after
installation to compensate for seating of the PTFE O-ring.
12
Table 2-1 for initial torque value.
Table 2-1 for final torque value.
Rosemount 3051S/3051/2051
January 2020
A
B
C
D
Rosemount 3051