Process Connections - Emerson Rosemount 3051 Reference Manual

Section 2: Installation
November 2012
Note
For steam or other elevated temperature services, it is important that temperatures at the
process connection do not exceed the transmitter's process temperature limits.
Figure 2-8. Installation examples
GAS OR LIQUID SERVICE
Flow
2.8.3

Process connections

Coplanar or traditional process connection
Install and tighten all four flange bolts before applying pressure, or process leakage will result.
When properly installed, the flange bolts will protrude through the top of the sensor module
housing. Do not attempt to loosen or remove the flange bolts while the transmitter is in service.
Flange adaptors:
Rosemount 3051DP and GP process connections on the transmitter flanges are
Flange adapters are available with standard
allow users to disconnect from the process by removing the flange adapter bolts. Use
plant-approved lubricant or sealant when making the process connections. Refer to
Dimensional Drawings on
distance may be varied ±
To install adapters to a Coplanar flange, perform the following procedure:
1.
2.
3.
4.
16
GAS SERVICE
page 120
/ in. (3.2 mm) by rotating one or both of the flange adapters.
1
8
Remove the flange bolts.
Leaving the flange in place, move the adapters into position with the o-ring installed.
Clamp the adapters and the Coplanar flange to the transmitter sensor module using the
larger of the bolts supplied.
Tighten the bolts. Refer to
Flow
1 / –14 NPT Class 2 connections. The flange adapters
2
for the distance between pressure connections. This
"Flange bolts" on page 11
Reference Manual
00809-0100-4001, Rev JA
STEAM SERVICE
Flow
1 / –18 NPT.
4
for torque specifications.
Installation