Emerson Rosemount 2051 Wireless Series Reference Manual page 38

Section 3: Installation
June 2012
Flange Bolts
The 2051 can be shipped with a Coplanar flange or a Traditional flange installed with four
1.75-inch flange bolts. Mounting bolts and bolting configurations for the Coplanar and
Traditional flanges can be found on page 2-6, 7. Stainless steel bolts supplied by Emerson
Process Management are coated with a lubricant to ease installation. Carbon steel bolts do not
require lubrication. No additional lubricant should be applied when installing either type of bolt.
Bolts supplied by Emerson Process Management are identified by their head markings:
316
KM
Bolt Installation
Only use bolts supplied with the Rosemount 2051 or sold 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:
1.
2.
3.
Torque values for the flange and manifold adapter bolts are as follows:
Table 3-1. Bolt Installation
CS-ASTM-A445 Standard
ASTM-A-193-B7M—Option L5
Alloy K-500—Option L6
ASTM-A-453-660—Option L7
ASTM-A-193-B8M—Option L8
30
Carbon Steel (CS) Head Markings
B7M
660
B8M
F593_ F593_
CL A
Alloy K-500 Head Marking
Finger-tighten the bolts.
Torque the bolts to the initial torque value using a crossing pattern.
Torque the bolts to the final torque value using the same crossing pattern.
Torque Values
Bolt Material
316 SST—Option L4
Stainless Steel (SST) Head Markings
* The last digit in the F593_ head marking may
be any letter between A and M.
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 (17 N-m)
Reference Manual
00809-0100-4102, Rev AA
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)
Installation