Installation
Step 10. Attaching cryogenic liquid supplies
40
Figure 17. Location of cryogenic cooling valve
2. Connect the supply tubing to the liquid CO
2
tanks outlet with the fitting
recommended by the supplier.
3. Use a
SWAGELOK fitting to connect the supply tubing to the cryogenic valve
inlet.
Attaching liquid nitrogen
Materials needed:
❐ 1/4-inch insulated copper tubing
❐ Tubing cutter
❐ 1/4-inch
SWAGELOK fittings, nuts, and ferrules
❐ Two 9/16-inch wrenches
1. Position the nitrogen tank as close to the GC as possible to insure that liquid
and not gas is delivered to the inlet.
2. Locate the inlet for coolant on the left-hand side of the GC. Prepare enough
tubing to reach from the supply tank to this outlet. See Figure 18.
Cryogenic cooling
valve
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