Airtrol fitting

Discussion in 'HVAC Heating & Cooling' started by rockycmt, Oct 19, 2008.

  1. rockycmt

    rockycmt New Member

    Messages:
    129
    Location:
    New York
    Can someone explain to me how an airtrol fitting works on a bladderless expansion tank?

    Thanks...
  2. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    Not a clue what your are talking about. How about a picture of the thing.
  3. Furd

    Furd Engineer

    Messages:
    446
    Location:
    Wet side of Washington State
    Quite simply, it doesn't.

    In my opinion and also the opinion of many others that have had the frustration of working with the B&G airtrol it is the single worst piece of equipment that Bell & Gossett ever foisted on the world.

    NH, try this:

    http://www.bellgossett.com/literature/files/599.pdf
  4. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    still not sure what he's talking about but I'll roll on and assume its the tank valve. All it does is allow air to break the vaccuum so that you can drain the tank. If you still have this set-up, do yourself a favor and put a bladder tank in.
  5. rockycmt

    rockycmt New Member

    Messages:
    129
    Location:
    New York
    I just bought a blatter tank to replace my existing one. I was just wonering what I was removing. Since we are on the topic... Should I install an air scoop with my new bladder tank? It is recommended by Watts just wanted to know if it is over kill?

    Thanks again...
  6. Furd

    Furd Engineer

    Messages:
    446
    Location:
    Wet side of Washington State
    The ATF tank fitting. Yeah, it is a fancy air vent AND level control of sorts when trying to get the "proper" level of water in a conventional expansion tank. Follow the B&G instructions and learn seven productive methods of pulling out your hair.

    Rocky, some systems work just fine without an air eliminator (scoop) fitting, others don't. For the best operation you need several pipe diameters of straight pipe before the air eliminator. Unless you can easily do this I suggest installing the bladder tank without the air eliminator and see how it goes. The best point to connect the bladder tank is before the circulating pump suction.
  7. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    I wouldn't bother with a scoop type air eliminator. They are a waste of time and money. Get a Spiro-Vent and do it right.
Similar Threads: Airtrol fitting
Forum Title Date
HVAC Heating & Cooling Can I use a 37° flare tool for a 45° fitting? Oct 23, 2009
HVAC Heating & Cooling Installing compression fittings for PE gas pipe Nov 18, 2007

Share This Page