Emerson Rosemount 2051 Wireless Series, Reference Manual, Page: 155 / 250

32
Reference Manual
00809-0100-4100, Rev AA
Section 3: Installation
June 2012
Installation
Flange Bolts
The 3051 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:
Bolt Installation
Only use bolts supplied with the Rosemount 3051 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. 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.
Torque values for the flange and manifold adapter bolts are as follows:
Table 3-1. Bolt Installation
Torque Values
Bolt Material Initial Torque Value Final Torque Value
CS-ASTM-A445 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)
Alloy K-500—Option L6 300 in.-lb (34 N-m) 650 in.-lb (73 N-m)
ASTM-A-453-660—Option L7 150 in.-lb (17 N-m) 300 in.-lb (34 N-m)
ASTM-A-193-B8M—Option L8 150 in.-lb (17 N-m) 300 in.-lb (34 N-m)
Carbon Steel (CS) Head Markings
B7M
316
B8M
F593_
Stainless Steel (SST) Head Markings
* The last digit in the F593_ head marking may
be any letter between A and M.
F593_
KM
660
CL A
Alloy K-500 Head Marking