Taylor-Wharton VJ Bulk Tank - Manual (Page 13)

8. Loosen setscrew lock nut on BACK PRESSURE REGULATOR (PCV) and turn setscrew
counterclockwise to the end of its travel counting the number of turns made. Open
REGULATOR ISOLATION VALVE (V-8) to purge safety line.
9.
Repeat purge procedures 2 through 8 until an acceptable product purity is achieved.
10.
Reconnect the LIQUID LEVEL GAUGE (LI), open ISOLATION VALVES (V-6, V-5) and
close EQUALIZATION VALVE (V-7). Reset BACK PRESSURE REGULATOR (PCV) by
turning the setscrew clockwise the counted number of turns, then tighten lock screw.
11.
After completion of tank purge, make sure that all valves are closed except the GAUGE
ISOLATION VALVES (V-6, V-5).
FILLING PROCEDURE
1.
Attach a liquid fill line from the supply transport to the LIQUID FILL CONNECTION (CN-
1), and a gas phase line from the transport to the VAPOR EQUALIZATION
CONNECTIONS (CN-2) on the tank.
2.
Open the trailer and the tank VAPOR EQUALIZATION VALVE (V-2) and wait until both
the tank and the trailer pressure gauges reach the same pressure.
3.
Open the LIQUID FILL VALVE (V-1) on the tank and the corresponding transport valve.
Start the pump and observe the LIQUID LEVEL GAUGE (LI) during transfer for fill
termination.
CAUTION: Do not over fill.
4.
When transfer is complete as indicated by the LIQUID LEVEL GAUGE (LI), stop the pump
and close the transport supply valve. When the liquid in the fill hose has vaporized close
LIQUID FILL VALVE (V-1). Then close the VAPOR EQUALIZATION VALVE (V-2) and
finally the gas valve to the transfer truck.
5.
Relieve the pressure in the transfer lines and disconnect from storage tank.
MAINTENANCE
No attempt at maintenance of this equipment should be undertaken without a thorough understanding
of the pressures, procedures and specialized skills involved.
WARNING: Isolate components and slowly depressurize the plumbing to be repaired before
attempting repairs.The sudden release of pressure could cause personal injury.
Observe safety precautions to prevent a dangerous accumulation of gas.
Before installing, be sure to properly clean any replacement parts that are not packaged and marked
for cleaned for oxygen service. Keep all parts clean during installation to prevent contamination.
CAUTION: Carbon dioxide may form into solid phase (dry ice) if the pressure over the liquid is
allowed to drop below 70 psig (4.8 bar/ 483 kPa). Pressure in the container must be
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