Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Trap test

HEATON
HEATON Member Posts: 118
WHat is the best way , short of dismantling , the radiator traps on two pipe steam systems?

Comments

  • Jamie Hall
    Jamie Hall Member Posts: 23,272
    When the boiler is running... a) the radiator should get hot. If it doesn't, the trap is failed closed (or, of course, the inlet valve is closed...). b) when the radiator is pretty well hot all across, the outlet pipe (below the trap) could be warm -- perhaps quite warm -- but not steam hot. Best to check with an IR thermometer, but can also do it by hand. If the pipe is steam hot, the trap is failed closed.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • Abracadabra
    Abracadabra Member Posts: 1,948

    .... If the pipe is steam hot, the trap is failed closed.

    Think you mean "open" :)

  • Jamie Hall
    Jamie Hall Member Posts: 23,272
    Yup. Guess I'm getting old!
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England