Interesting steam pipe layout - ideas?

Big Will

Anyone?

Big Will

Interesting steam pipe layout - ideas?

I hope someone can help me out here. I am trying to figure out exactly why this part of my system was designed the way it was and how it works. Before I start, please feel free to ask for any details I may have left out. Our "Boarding House" was started in 1926 and added on several times until 1940 when it reached as size of 7900 square feet. There a 4 mains run from the boiler, 3 of which are 1 pipe mains. The 4 is the one I am a little confused about. Instead of trying to explain the layout, I made a sketch of it and saved it as a jpg file and attached it. Please have a look and I will answer questions as they come. Thanks. Jon.

Dan C._4

scetch

I can't figure out your sketch. Is the red pipe a main? What is the gray pipe? Are these all horizontal or are some vertical?

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Big Will

The red line is the 3" main line which progressively reduces to 2" where it leaves the room. The room is a bit different in that the floor is about 3 feet above the adjacent basement floor. Where I started the line would be the ceiling of the basement. It goes through the wall, then travels vertically about 7 feet where it travels horizontally around the room just below the ceiling (the room has a 13 foot ceiling - it's actually a bathroom with a second bathroom above it). Where I marked the vent is where it travels 7 feet back down to converge into one line with the gray lines and return to the boiler (with a gorton #2 in the riser just before the boiler). There seems to be some sort of check valve downstream from each radiator. I'll try to tske some pictures tomorrow and post them.