Emerson Rosemount 5408 Quick Start Manual page 6

Quick Start Guide
Step 2: Tighten the bolts and nuts
Note
Re-tighten after 24 hours and again after the first temperature cycle.

Check at regular intervals and re-tighten if necessary.

Table 1. Torque Value, lb-ft (N-m)
Process
connection size
2-in./DN50/50A
3-in./DN80/80A
4-in./DN100/100A
1. The conditions used for the calculation are: Standard mating metal flange, A193 B8M Cl.2 / A4-70
bolt material, and a friction coefficient of μ=0.16.
2. Low strength bolt and non-metallic mating flange may require lower tightening torque.
Step 3: Align the transmitter head (see page 8)
6
(1)(2)
ASME B16.5
Class 150 Class 300
29 (40) 52 (70)
33 (45) 48 (65)
59 (80) 52 (70)
Process connection rating
EN1092-1
PN6 PN10/PN16
15 (20) 26 (35)
37 (50) 37 (50)
37 (50) 37 (50)
October 2017
JIS B2220
PN25/PN40 10K
29 (40) 18 (25)
41 (55) 22 (30)
74 (100) 26 (35)