Inline Process Connection - Emerson Rosemount 3051 Reference Manual

Installation
May 2017
O-rings
The two styles of Rosemount flange adapters (Rosemount 1151 and Rosemount
3051S/3051/2051/3095) each require a unique O-ring. Use only the O-ring designed for the
corresponding flange adaptor.
Failure to install proper flange adapter O-rings may cause process leaks, which can result in death or serious injury.
The two flange adapters are distinguished by unique O-ring grooves. Only use the O-ring that is designed for its
specific flange adapter, as shown below.
ROSEMOUNT 3051S/3051/2051/3001/3095/2024
A. Flange Adapter
B. O-ring
C. PTFE
D. Elastomer
When compressed, PTFE O-rings tend to "cold flow," which aids in their sealing capabilities.
Note
PTFE O-rings should be replaced if the flange adapter is removed.
3.8.4

Inline process connection

Inline gage transmitter orientation
The low side pressure port on the inline gage transmitter is located in the neck of the transmitter, behind
the housing. The vent path is 360 degrees around the transmitter between the housing and sensor (See
Figure
Keep the vent path free of any obstruction, such as paint, dust, and lubrication by mounting the
transmitter so that the process can drain away.
42
ROSEMOUNT 1151
3-9).
Reference Manual
00809-0100-4001, Rev KA
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Installation