Re: Steam line placement on express box cars

Here is a scan of the underside diagram for a CN wood express reefer. It’s from Sylvan models and is looking from underneath the car up. The fat pipe on one side is steam and the two smaller ones are main air and signal. There would also be a retaining valve line running from the main valve to the end of the car.  CP wood express reefers had similar piping but the air tanks were placed differently. The pipes crossed the undersill through a slit part way up from floor.

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