Bolt installation
Only use bolts supplied with the 2051 or provided by Emerson Process Management as
spare parts. When installing the transmitter to one of the optional mounting brackets,
torque the bolts to 125 in-lb. (0,9 N-m). Use the following bolt installation procedure:
Procedure
1. Finger-tighten the bolts.
2. Torque the bolts to the initial torque value using a crossing pattern.
3. Torque the bolts to the final torque value using the same crossing pattern.
Example
Torque values for the flange and manifold adapter bolts are as follows:
Table 3-2: Bolt Installation Torque Values
Bolt material Initial torque value Final torque value
CS-ASTM-A449 Standard 300 in.-lb (34 N-m) 650 in.-lb (73 N-m)
316 SST—Option L4 150 in.-lb (17 N-m) 300 in.-lb (34 N-m)
ASTM-A-193-B7M—Option L5 300 in.-lb (34 N-m) 650 in.-lb (73 N-m)
ASTM-A-193 Class 2, Grade B8M—Option L8 150 in.-lb (17 N-m) 300 in.-lb (34 N-m)
Figure 3-5: Traditional Flange Bolt Configurations
A. Drain/vent
B. Plug
Dimensions are in inches (millimeters).
Reference Manual
Installation
00809-0100-4803 October 2018
Emerson.com/Rosemount 79
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