Emerson Rosemount 3051S Reference Manual page 58

Rosemount 3051S ERS System
Table 4-1. Bolt Installation
Torque Values
4-12
Bolt Material
CS-ASTM-A445 Standard
316 SST - Option L4
ASTM-A-193-B7M - Option L5
Alloy K-500 - Option L6
ASTM-A-453-660 - Option L7
ASTM-A-193-B8M - Option L8
4. If replacing the PTFE SuperModule o-rings, re-torque the flange bolts
after installation to compensate for cold flow.
5. Install the drain/vent valve.
a. Apply sealing tape to the threads on the seat. Starting at the base of
the valve with the threaded end pointing toward the installer, apply
two clockwise turns of sealing tape.
b. Take care to place the opening on the valve so that process fluid will
drain toward the ground and away from human contact when the
valve is opened.
c. Tighten the drain/vent valve to 250 in-lb. (28.25 N-m).
Reference Manual
00809-0100-4804, Rev AA
Initial Torque Value
300 in-lb. (34 N-m)
150 in-lb. (17 N-m)
300 in-lb. (34 N-m)
300 in-lb. (34 N-m)
150 in-lb. (17 N-m)
150 in-lb. (34 N-m)
January 2011
Final Torque Value
650 in-lb. (73 N-m)
300 in-lb. (34 N-m)
650 in-lb. (73 N-m)
650 in-lb. (73 N-m)
300 in-lb. (34 N-m)
300 in-lb. (34 N-m)