O-Rings With Flange Adapters - Emerson Rosemount 2051CF Series Quick Installation Manual

Rosemount 2051
S 1
TEP CONTINUED
Figure 2. Torque values for the flange and flange adapter bolts
Bolt Material
Carbon Steel (CS)
Stainless Steel (SST)
D. O-rings with Flange Adapters
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.
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.
6
...
Head Markings
316 B8M
STM
316
316
R
Rosemount 3051S / 3051 / 2051 / 3095
Rosemount 1151
B7M
316
SW
316
WARNING
PTFE Based
Elastomer
PTFE
Elastomer
Quick Installation Guide
00825-0200-4101, Rev EA
June 2010
Initial Torque Final Torque
300 in.-lbs. 650 in.-lbs.
150 in.-lbs. 300 in.-lbs.
Flange Adapter
O-ring
Flange Adapter
O-ring