15
Introduction/OperationProduct Manual - Perma-Cyl
®
w/ FlexFill™ Piping Option
TC Gauge
Tube
Photo 10 - Gas Use and PB Isolation Valve
Gas Use
The gas use circuit on the 5500 VHP model is the primary
connection point to supply process gas to the customer.
The gas use circuit on this model is different from other
Perma-Cyl models. The gas use coil shown in Figure 3 is
the optional 3500 SCFH vaporizer. Without this gas use coil
option, the gas use circuit stops at the gas use isolation valve
(V-2) (see Photo 10). Gas use coil options include a 3500
SCFH hang-on vaporizer (see Photo 11) or a stand alone
5000 SCFH vaporizer (to be plumbed on-site).
The gas use circuit works by the pressure in the vessel
forcing the liquid out the gas use connection (K) and up a
tube in the annular space. It then connects to the economizer
inlet above the height of the liquid so the economizer works
regardless of the amount of liquid in the vessel. The line goes
back down to the bottom of the annular space before exiting
and passing through either the optional hang on process
vaporizer or stand alone process vaporizer.
Photo 11 - 5500VHP with optional hang on vaporizer
Vacuum Integrity
The 5500 model vessels are equipped with PN 4210049
Hastings 1415671S #DV-6R vacuum thermocouple gauge
tubes (see Photo 12). Vacuum integrity may be tested with
a vacuum meter. Deterioration or loss of vacuum will be
apparent by cold spots, frost or condensation on the jacket, or
evidenced by abnormally rapid pressure buildup. Unless one
of these conditions is evident, the vacuum level should not
be suspected. In the event one of the above conditions exist,
see Vacuum Check Procedure on page 7 of this manual.
Photo 12 - Thermocouple gauge tube
PB
Circuit
Valve
Gas Use /
Dip Tube
Valve
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