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.
If our community has helped you, please consider making a contribution to support this website. Thanks!

4A Valve

Options
Steamhead (in transit)
Steamhead (in transit) Member Posts: 6,688
in THE MAIN WALL
very small systems where the length of the main is less than 15 feet or so of 2-inch pipe. I can't count the number of these miniscule things that I've taken off and replaced with Gorton #2 vents.

Get Gerry Gill and Steve Pajek's e-book on balancing steam systems, it has all the charts you need. Order it on the Books and More page of this site. All proceeds go to charity.

<A HREF="http://www.heatinghelp.com/getListed.cfm?id=367&Step=30">To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"</A>

Comments

  • JimmyJam_2
    JimmyJam_2 Member Posts: 6
    Has anyone used

    a Hoffman #4a on a main before?? or just 75's? Hoffmans web site recommends 4a's for residential and small systems, but I don't see them around that much.
  • Bob W._3
    Bob W._3 Member Posts: 561


    Had them on mine once. They don't vent much.
  • Raph
    Raph Member Posts: 6
    Thanks Steamhead

    I'll check that out........
This discussion has been closed.

Categories