Ball Valve Installation - Emerson Rosemount 5408 Reference Manual

Mechanical Installation
November 2017
Chamber
Consider the following chamber requirements:
Pipes should be an all-metal material.

Pipe should have a constant inside diameter.

Inlet pipes should not protrude into the inside of the stand pipe.

The inner surface must be smooth and clear of any rough edges.

(Smooth pipe joints are acceptable, but may reduce accuracy.)
The gap between the cone antenna and the stand pipe should be maximum 0.2 in. (5 mm). If required,

order a larger antenna and cut on location. See
Figure 3-10. Chamber Requirements
For more information and installation requirements, refer to the Guidelines for Choosing and Installing
Radar in Stilling Wells and Bypass Chambers
3.3.9

Ball valve installation

The transmitter can be isolated from the process by using a valve:
Use a full-port ball valve.

Ensure there is no edge between the ball valve and the nozzle or still pipe, the inside should be

smooth.
Valves can be combined with still pipes.

20
Min. 0.4 in. (10 mm)
Min. 6 in. (150 mm)
Figure A-10 on page 163
Max. 1°
Technical Note.
Reference Manual
00809-0100-4408, Rev BA
for antenna dimensions.
Max. 0.2 in.
(5 mm)
Mechanical Installation