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Gorton vent selection?

Jack_33
Jack_33 Member Posts: 19
in THE MAIN WALL
Good morning all,
I am in the process of going ahead and just replacing the old vents on three steam radiators. Excluding nipple size and straight/angle , what are the advantages on the different Gorton sizes?
I have only 1 Main Vent and that is at the end of the return line in my one pipe system. Should this also be replaced as a good measure? What manu would you suggest?

Thanks

Comments

  • Ken_40
    Ken_40 Member Posts: 1,320
    I urge you

    to replace them all!

    The Gorton website www.gorton-valves.com/ has all you need to figure out which ones to use.

    While your at it, just be aware that other than the main vent, no wrench is to be used in installaing the new ones. I also urge you to pick up a 1/8" NPT pipe tap to "chase" the radiator threads. DO NOT make the threaded hole any larger than it is already. You simply want to be able to get 3 full revolutions BY HAND FIRM TIGHTENING of the new vent(s).

    As the Gorton literature suggests, use a #4 vent in the radiator that impacts the thermostat area most. Then use #5's and #6's based on distance from the main.

    It's always a good idea to make sure none of the steam stop (valves) have no leaks as well. Tighten the packing with the wheel (handle) on the valve at "half open" and never try a control steam output by leaving the valve at some "mid-point." Either the valve's wide open (allowing the vent orifice/hole diameter influence to control output), or it's closed (preventing any steam from getting into the rad at all).

    On RARE occassions, you may have an extremely stubborn distant rad. Only then would a "C" sized vent be appropos.

    Let us know how you make out.
  • Jack_33
    Jack_33 Member Posts: 19


    Ken,
    Thanks for the info and help.
    David
  • Steamhead (in transit)
    Steamhead (in transit) Member Posts: 6,688
    You also want to check out

    Gerry Gill & Steve Pajek's venting article, available on the Shop page of this site as an e-book. It's the best guide to venting steam systems that I've ever seen, and has a chart showing the throughputs of many different vents.

    All proceeds from this e-book go to charity. Everyone wins.

    "Steamhead"

    To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"
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