Saw these today. A different looking dome on this tank car - kind of stuck out. I'd be curious to know what the purpose is for that dome shape. Also saw this old Santa Fe passenger car on display. Classic old woodside heavyweight. The clerestory roof has patterned stained glass windows in it. Very classy.
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The tank car has a protective housing on top. The drain and fill fittings are within the “tub like” housing, then a hinged steel housing cover closes off the top of the housing.
These protective housings are designed and built to be very robust so as to protect the fittings in the event of an accident.
As info, the placard indicates this car is in sulfuric acid service.
Curt
@juniata guy posted:The tank car has a protective housing on top. The drain and fill fittings are within the “tub like” housing, then a hinged steel housing cover closes off the top of the housing.
These protective housings are designed and built to be very robust so as to protect the fittings in the event of an accident.
As info, the placard indicates this car is in sulfuric acid service.
Curt
Very interesting. I've never seen one like it. No question they want to keep a tankload of sulfuric acid as secure as possible! I wonder what they use to line the interior of the tank. Perhaps with some kind of glass or something similar.
According to the stenciling, the lining is a Plasite 3070L. This is a painted on lining material and common to cars used in sulfuric acid service.
I worked in rail logistics and fleet management for a chemical company the last twenty years of my career and this was the same lining we installed in our sulfuric acid cars.
Curt
I knew you'd have the answer, Curt! 
Your personal record has been awarded ten merits for expert knowledge of tank cars.
@Number 90 posted:I knew you'd have the answer, Curt!
LOL! Thanks Tom!
Curt
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