Gas Flow Distribution - RMG PGC 9300 Operating Manual

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3 Gas chromatograph PGC 9300

3.4 Gas flow distribution

The purpose of the gas distribution is to connect one of the four gas streams to the

analyzer and to supply the carrier gas.

In order to avoid contamination of the selected gas stream due to potential leak-

age of the valves, a so-called "Double Block and Bleed" arrangement of valves

was selected.

Figure 7: Gas (distribution principle diagram) shows a corresponding arrangement

in which Gas Stream 2 is selected. It shows that the volumes between the valves

of gas streams that are not selected are vented to the atmosphere. As a result,

any occurring leaks cannot contaminate the analysis gas stream.

1. sample gas

2. calibration gas

3. test gas

4. safe shut off valve

Manual PGC 9300 EN07 June, 18th 2018

5. gas filter

1. Betriebsgas

6. sample gas outlet

2. Kalibriergas

7. off gas

3. Referenzgas

4. Magnetventil

Figure 7: Gas (distribution principle diagram)

5. Filter

6. Analysengas

7. Entlüftung

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