Re: Half-stage icing -- what is it?
- From: "Geezer" <gquNOSPAMale@xxxxxxxxxxxx>
- Date: Tue, 15 Aug 2006 07:23:48 -0400
"OvC" <otto.von.chriek@xxxxxxxxxxxx> wrote in message
news:MPG.1f4a575acda26c6b9897dc@xxxxxxxxxxxxxxxxxx
An article I was reading on reefers mentioned "half-stage" and "full-
stage" icing but didn't define those terms. It sounded like some ice
bunkers could be set up to receive only half a load vs. full load. Is
it that simple? Why the need for a special rack, if that's what it
is? Why wouldn't ice bunkers be loaded full -- shorter trip, less
cooling, or??
--
OvC
Refrigerator cars with "stage icing" have adjustable ice grates in the end
ice bunkers. The ice grates can be set up:
1) near the bottom of the bunker in the "full stage position" to allow a
maximum load of ice for maximum cooling of the load,
2) near the middle of the bunker in the "half stage position" to allow a
smaller load of ice for reduced cooling of the load, or
3) can be left folded up when the car is used as a ventilator car for
shipments in cool weather that don't require lower temperatures.
PFE had stage icing on several classes of reefers, and noted it with small
lettering "stage icing" near the car ends. Geezer
.
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