Emerson Edition 4 Water Heater User Manual


 
Rosemount Tank Radar REX
Chapter 10 Mechanical Installation
10-22
Installation Manual
308014EN, Edition 4
May 2013
10.3.4 Recommended Installation
When constructing new tanks, an 8" still pipe or larger is recommended.
This is especially relevant in tanks with sticky, viscous products. Before
manufacturing a new still pipe, we recommend that you contact Emerson
Process Management / Rosemount Tank Gauging for advice.
For highest performance, the total area of the slots or holes in the still
pipe must not exceed the values shown in Table 10-2 below. The listed
values refer to the total area of the holes over the entire length of the
pipe, regardless of its length. In some cases it is possible to allow a
larger total area than stated in Table 10-2. When the limits are exceeded,
please contact Emerson Process Management / Rosemount Tank
Gauging for advice.
Table 10-2. Maximum area of the slots or holes.
Pipe Dimension
(inch)
5 6 8 10 12
Max Area of
Slots or Holes
(m
2
)
0.1 0.1 0.4 0.80 1.2