Taylor-Wharton LP3 - Manual (Page 10)

Gas Withdrawal Circuit
The gas withdrawal circuit vaporizes cryogenic liquid and warms it to ambient temperatures for use in the
final application. Opening the gas withdrawal valve (V-5) allows liquid, driven by the pressure within the
vessel, to flow through the vaporizer (VC-1). The vaporizer uses heat from the ambient air to convert the
liquid into a gas and warm it. Should the vaporizer be damaged or require repair the vaporizer isolation valve
(V-2) may be closed to prevent loss of product. The vaporizer safety valve (SV-2) prevents excessive
pressure build-up should the gas withdrawal valve and vaporizer isolation valve be closed while the vaporizer
contains liquid or cold gas.
VC-1
VC-1
SV-2
V-2
V-5
CN-2
Figure 5: Gas withdrawal circuit highlighted in blue.
(Frame omitted from view for clarity.)
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