Agilent Technologies 6850 GC, Install Manual, Page: 17 / 20

Installing Sampling Valves on an Agilent 6850 Gas Chromatograph
Installing Sampling Valves 17
Installing an Air Control Valve for a Rotary-Type Sampling Valve
Follow the procedure in Table 5 to install a rotary air
control valve.
Table 5 Installing an air control valve for a rotary-type sampling valve
Step Action Notes
1 Install the air control valve. a If present, remove the rectangular
cover plate on the back of the lid.
b Locate the two tubes from the heated
sampling valve. Run them through the
hole on the back of the lid.
c Insert the tubes in the numbered holes
on the air control valve. Press firmly
into place. Tug on the tube to verify it is
connected.
• The tubes are labeled “1” and “2”.
Connect each tube to the hole on
the air control valve with the
corresponding number.
• Press in the black PTFE ring to
release the tube if you need to
remove it.
d Mount the valve assembly on the
outside of the lid with two screws. • Install the air control valve with the
holes facing down.
Insert tubes here
PTFE ring