6.4 Instrument Air / Inert Gas Sampling System
The piping installation schematic diagram shows all components which could be
used in a dry gas measurement application, although not all the items shown will
be required for every installation.
MAIN
PROCES
S
LINE
4B
P
3
5
4A
6
10
11
2
1
9
8
7
Notes
a. The sample pipe should be on the upper surface of the horizontal pipe or on a vertical section of pipe
wherever possible.
b. The sample tube should run continually upwards from the sample point. If this is not possible then an
inspection port or drain tap should be installed at the lowest point in the system.
18
