1
Installation
Connecting the PTV/PTVBKF Cryogenic System
Thermo Scientific
TRACE 1300 and TRACE 1310 Hardware Manual
21
PTV/PTVBKF Cryo System with Liquid Nitrogen Connection
This cryo system consists of a tube for liquid nitrogen inserted into the PTV/PTVBKF
module and fitted with a 1/8-in. solenoid valve for liquid nitrogen mounted on a bracket
fixed on the back of the GC. The tube for liquid nitrogen is covered with an insulating
material tube. See
.
Figure 23.
Front and Back PTV Cryo System with Liquid Nitrogen
Liquid nitrogen must be supplied at a pressure below 400 kPa (60 psi). Plumbing to the GC
should be 1/4-in. copper or stainless steel tubing with insulation.
It is your responsibility to ensure the delivery connection from the Liquid Nitrogen cryogenic
supply is adaptable to 1/4-in. tubing. The liquid nitrogen cryogenic valve on the GC is a
1/4-in. Swagelok fitting.
shows the proper configuration for a liquid nitrogen tank.
Figure 24.
Liquid Nitrogen Tank Configuration
WARNING
High pressures and extremely low temperatures make Liquid Nitrogen a
hazardous material. High concentrations of liquid nitrogen in the air can be an
asphyxiation hazard. To avoid injury, always follow the safety precautions and delivery
system design recommended by your gas supplier.
Содержание TRACE 1300
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