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one pipe steam

I have a one pipe steam heating system and two radiators on the second floor that just get to hot.I have been looking at these macon 1/8 inch steam vents that regulate temperature buy way of a thermostatic valve.The inlet piping is 1/1/2 and I really don't want to change the angle rad valve at the floor,im just not sure this little air vent valve is gonna do the job any thoughts? whats gonna work better? 1/1/2 thermostatic valve or this 1/8 inch thermostatic air vent valve

Comments

  • BobC
    BobC Member Posts: 5,232
    Is this the one your looking at?

    I assume your looking at this - 



    http://www.tunstall-inc.com/wp-content/uploads/OPSK12041.pdf



    The way they work is to stop steam getting into the radiator by blocking the air from leaving the radiator. If the air can't leave the steam can't get in.



    What kind of air vents are on the radiators now? It might be worth trying Hoffman 40's first because they cost a lot less than a TRV does. If they still get too hot you can install the TRV's.



    Bob
    Smith G8-3 with EZ Gas @ 90,000 BTU, Single pipe steam
    Vaporstat with a 12oz cut-out and 4oz cut-in
    3PSI gauge
  • jumper
    jumper Member Posts: 1,719
    vent valve

    Air vent valve is the only one recommended for one pipe. You're not supposed to modulate the intake on a one pipe. That angle valve is strictly for full open or completely closed. There's thermostatic vent valves with an integrated vacuum break.
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