Figure 3-4: Rosemount 2051 Sample Label
3.3.1
Max working pressure
The maximum working pressure (MWP) of the seal system assembly is stamped on the
transmitter neck tag. This can be dependent upon the maximum pressure rating of the
seal system or transmitter upper range limit.
3.4
Torque sequence
When tightening the assembly bolts, use a cross-pattern to ensure even installation. Best
practice is to tighten 20 to 30 percent, check the gap, tighten 50 to 70 percent, check
flange gap and uniformity, and continue to tighten in the appropriate pattern until you
reach 100 percent torque value. Time permitting, wait a minimum of four hours and
repeat the torque pattern to restore any short-term creep/relaxation in the connection.
Figure 3-5: Cross-Pattern Sequence
A
C
D
B
A. 4-bolt flange
B. 8-bolt flange
C. 12-bolt flange
D. 16-bolt flange
Reference Manual
Installation
00809-0100-4002
May 2020
Rosemount DP Level
27
Содержание Rosemount 1199
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