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tridicator:What is it??

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John G. Merritt
John G. Merritt Member Posts: 140
in THE MAIN WALL
Hi Guys!

What is a Tridicator???

John

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  • John G. Merritt
    John G. Merritt Member Posts: 140
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    Never mind . I retract the question

    Hey Guys,

    I retract that question. In Philadelphia area it's called a Pressure-altitude gauge.
    Yes, Dan explained it, and yes, I can ask some stupid questions.
    However, I never heard it called a tridicator, believe it or not!

    John
  • John Starcher_4
    John Starcher_4 Member Posts: 794
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    Mr. Merritt,

    .. as the old saying goes, the only stupid question is the one that is not asked....

    Starch
  • Bill NTSG
    Bill NTSG Member Posts: 321
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    Tri-

    Means three. 1 Temperature, 2 Pressure, 3 Altitude . Something the old timers called it.
  • John G. Merritt
    John G. Merritt Member Posts: 140
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    Thanks Mr. Starcher

    Thank you Mr. Starcher.
    I feel better already. And, you are correct.

    John
  • Richard Miller_2
    Richard Miller_2 Member Posts: 139
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    Why altitude? I only see 2 readings and they still call it a tridicator?
  • John Starcher_4
    John Starcher_4 Member Posts: 794
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    That's the beauty....

    ...of this forum. You can ask ANYTHING here and not feel bad about it. The people here are the salt of the earth.

    Starch
  • John G. Merritt
    John G. Merritt Member Posts: 140
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    Thanks Bill

    Thanks Bill.

    I honestly never heard that term before used in the field. Always called it a .......Well you know.
    Temp-altitude, Boiler gage, etc.
    You won't believe this one. I called my Boss and asked him,and.......HE DID NOT KNOW!!!!
    I feel much better now!!!

    John
  • Unknown
    Unknown Member
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    I noticed that, too

    Altitude is missing now. With open tank systems, that vented up at the roofline, the altitude told you how high the water line was.

    I guess we'll call them Dudicators, now.

    Noel
  • Jamie_6
    Jamie_6 Member Posts: 710
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    Where in the "Philadelphia" area are you from?

    Jamie

    Pompetti Heating & Air Conditioning, Inc.
  • John G. Merritt
    John G. Merritt Member Posts: 140
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    Philadelphia area

    Hi Jamie,

    I reside in Warminster,PA 5 miles south of Doylestown, about 25 miles north of Philly.
    Formally with Sunoco, now with Marshall Fuel in Skippack,
    Montgomery county.
    Where are you located?

    John
  • Jamie_6
    Jamie_6 Member Posts: 710
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    We are located n Media, PA. About 15 miles south of the international Airport.
  • Mad Dog
    Mad Dog Member Posts: 2,595
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    Regional names of things in the trade

    In different parts on NY state a big sandwich is called a hero, sub, submarine, torpedo, belly bomber, hoagie, grinder. As a NY city plumber, we always called the copper piping inside a building "crotons" after the famous reservoirs that feed the city. Mad Dog

    To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"
  • [Deleted User]
    [Deleted User] Posts: 0
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    Hydronic Misnomers...

    The reason the parts house emplyess call it a tridicator when its actually just a bidicator is because the ol' guy that told them it was called a tridicator retired, and the bidicators were put on the same shelf... It looks the same, comes in the same size and color of box, there for it must be a tridicator,right?

    What about when you ask for a PRV. You going to get a pressure reducing valve, or a pressure relief valve?

    And the list goes on...

    ME
  • John G. Merritt
    John G. Merritt Member Posts: 140
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    Media

    Hey Jamie,

    Media seems like the other side of the world from where I am located. Nice area. Used to live in Folcroft many years ago.
    By the way, If you fish, the Skippack Creek & Perkiomen are terrific places to catch 'em.

    John
  • John G. Merritt
    John G. Merritt Member Posts: 140
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    Interesting names

    Hey Mad Dog,

    Interesting names. Do they sell Cheese Steaks up there? Soft Pretzels? Just curious.

    John
  • John G. Merritt
    John G. Merritt Member Posts: 140
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    Good Mark

    Hey Mark!

    Good one! Interesting.

    John
  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928
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    Altitude & Pressure

    Really are one and the same. Only difference on the "real" tridicator is that there is an extra SCALE (altitude) and usually a movable red pointer that is set to the proper altitude of the old expansion tank.

    Remember that the old gravity systems were open to atmosphere through the expansion tank overflow so their only "pressure" came strictly from altitude.

    I believe that the open tank 1) enhanced gravity circulation and 2) provided a rather crude "safety" in the event of a run-amok boiler.
  • Richard Miller_2
    Richard Miller_2 Member Posts: 139
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    Yeah, I remember now. I am just a 31 year old kid. I have only ever seen one of the old systems like that. My boss claimed the heavy brass boiler trimmings when I removed it. I reused the old CI rads. This building was so old the maps hidden in the basement showed CO as a territory. The heating system was added in 1911 or so. The tank in the attic had a million rivets in it.
  • J.C.A.
    J.C.A. Member Posts: 349
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    I remember....

    one old timer refering to the above discussed gauge as a theraltimeter .(sp) I believe this was another local flavoring , and man ...that was a long time ago. Chris
  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928
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    Am just a 39 year-old kid. Do though enjoy studying the "old ways" as it seems to give you a thorough understanding of how modern hydronics do what they do...
  • Richard Miller_2
    Richard Miller_2 Member Posts: 139
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    Man, YOU ARE OLD!















    snicker snicker
This discussion has been closed.

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