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3-4
SECTION 3 - OPERATION
6. When the cylinder has cooled below 200°F/93°C the PRESSURIZE CYLINDER switch
may be turned to the OFF position and the CYLINDER DRAIN valve may be opened
which will allow water to circulate through the cylinder for more rapid cooling.
7. Cool the cylinder as long as API Specification 10 permits. If cooling water circulation is
stopped prematurely, heat from the cylinder may cause the temperature of the water in
the cylinder to rise and flash the water to steam.
Draining the Cylinder
1. Turn all valves to the OFF position.
2. Turn the PRESSURIZE CYLINDER and FILL CYLINDER switches to the OFF
position.
3. Open the CYLINDER DRAIN valve.
4. Turn the DRAIN CYLINDER switch to the ON position until the water has drained from
the cylinder. A minimum of two minutes is recommended.
5. Close the CYLINDER DRAIN valve.
6. Turn the FILL CYLINDER/DRAIN CYLINDER switch to the OFF position.
7. When all the pressure has been removed from the cylinder, carefully remove the plug
from the cylinder.
Note: Cylinder plug may be hot. The plug weighs 22 pounds/10 kg. Use caution to
prevent dropping the plug.
The molds may now be removed from the cylinder.
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