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

Vapor System end of line trap replacement

elfie Member Posts: 264
there is an arco 911 trap positioned at the end of the main steam line on an Arco model k steam system (virtually all radiators still have arco valves and no traps/vents on any of the radiators) 

my questions are:

any chance this end of line trap can be repaired (cant find any replacement kits for it) - maybe it can be cleaned with original parts kept?? 

if not salvageable, what might be an appropriate replacement trap? a basic Sarco f&t trap?

 its curious that the pipe below this trap connects to an underground wet condensate line (ie. not much room for air to vent from system I guess)  here is a pic of trap


  • Steamhead
    Steamhead Member Posts: 14,837
    That's a rare trap

    whatever you do, don't scrap it.

    The Tunstall and Barnes & Jones sites don't list kits for these. But first- is the trap working?
    All Steamed Up, Inc.
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
  • elfie
    elfie Member Posts: 264
    edited December 2011
    arco trap evaluation

    may be tough to evaluate if it still works

    if its determined to no be working, can it be opened up and repaired/cleaned and shouldnt there be a strainer before the trap?

    i guess dirt trap should be cleaned out.

    guess it would be a big challenge to replace this trap
This discussion has been closed.