Emerson Rosemount 3051S MultiVariable - Page 81

Note
For steam or other elevated temperature services, it is important that temperatures at the
transmitter process connection do not exceed the transmitter’s operating limits.
Figure 3-7: Installation Examples
Liquid service Gas service Steam service
FLOW
3.4.5 Process connections
About this task
The Rosemount 3051SMV flange process connection size is 1/4–18 NPT. Flange adapters
with a 1/4–18 NPT to 1/2–14 NPT connection are available with the D2 option. Use a plant-
approved lubricant or sealant when making the process connections. The process
connections on the transmitter flange are on 2 1/8-in. (54 mm) centers to allow direct
mounting to a 3- or 5-valve manifold. Rotate one or both of the flange adapters to attain
connection centers of 2-in. (51 mm), 2 1/8-in. (54 mm), or 2 1/4-in. (57 mm).
CAUTION
Install and tighten all four flange bolts before applying pressure to avoid leakage. When
properly installed, the flange bolts will protrude through the top of the SuperModule
isolator plate. See Figure 3-8. Do not attempt to loosen or remove the flange bolts while
the transmitter is in service.
Reference Manual
Installation
00809-0100-4803 October 2018
Emerson.com/Rosemount 81