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Don't know what this is?

phosgene Member Posts: 8
Hi all. Can someone please tell me what this is and does? 
4 story building. Originally coal fired.
Now on geothermal heat.


  • Jamie Hall
    Jamie Hall Member Posts: 21,113
    Was this originally steam? Because my first thought would be a plain vanilla steam trap...
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • Steamhead
    Steamhead Member Posts: 15,993
    That's right- it's a thermostatic steam trap, probably installed to vent a steam main. Looks like a Webster 502 or 512. Where is this building located?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
  • phosgene
    phosgene Member Posts: 8
    It's in Elko Nevada.
    The whole system is in poor condition
    JUGHNE Member Posts: 10,580
    Is the steam system still in use?
  • phosgene
    phosgene Member Posts: 8
    No it has been  turned into hot water.

  • phosgene
    phosgene Member Posts: 8
    Old boiler has been capped off
    JUGHNE Member Posts: 10,580
    edited March 2021
    Is the piping, that this trap is, on still used for hot water?
    Does this trap get hot?

    Can you show us the new hot water boiler and how the steamer is capped off?