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Thread: 1 lb freon cans

  1. #1
    Join Date
    Oct 2005
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    4
    Hi all. I'm new to this forum and know nothing about AC/Refrigeration/HVAC but I though some of you might have an answer to my question.

    I'm restoring a 1956 model boat and it has a period correct horn. This horn was meant to have one of those 1 lb freon cans screwed to the bottom. I can no longer get those cans and even if I could, I would probably want to change the horn. I want to adapt it to air pressure but I don't know what the pressure of those 1 bl cans was. Sorry for the long explanation but does anyone know what the pressure of those 1 lb cans was?

    Thanks for any replies.

  2. #2
    Join Date
    Nov 2000
    Location
    Eastern PA
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    68,981
    Doesn't R134a come in one pound cans?
    Government is a disease...
    ...masquerading as its own cure…
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  3. #3
    Join Date
    Sep 2002
    Posts
    4,970
    Yep about $7.00 a can at wally world

  4. #4
    Join Date
    Oct 2005
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    4
    I think it does, but I'm not sure it will fit the screw-on adapter. Also, the cans used to leak very bad and drain themselves.

  5. #5
    Join Date
    Apr 2002
    Location
    Omaha, NE
    Posts
    1,561
    Originally posted by boatbuoy
    ..............
    I'm restoring a 1956 model boat and it has a period correct horn. This horn was meant to have one of those 1 lb freon cans screwed to the bottom. I can no longer get those cans and even if I could, I would probably want to change the horn. I want to adapt it to air pressure but I don't know what the pressure of those 1 bl cans was. Sorry for the long explanation but does anyone know what the pressure of those 1 lb cans was?
    Thanks for any replies.
    I assume it would take R-12 cans which were dirt cheap back then. The pressure is easily found on a pressure/temperature chart for R-12. At a summer temp. of 85°F. the pressure would be 92 PSI.

    They still sell portable boat horns powered by compressed air (R-134A?). Why don't you see what kind of can connector they use. see link:
    http://www.westmarine.com/webapp/wcs...roductId=93587


  6. #6
    Join Date
    Oct 2005
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    4
    Thanks snewman, that's exactly what I needed to know.

  7. #7
    Join Date
    Sep 2004
    Posts
    3,157
    go to an auto wreckers and get the air pump out of a cad seville, or any big cad or lincoln town car, they come equipped with a small air compressor for the load leveling feature . usually mounted on the left front fender.

    put one of those in and you could blow your horn all day long

  8. #8
    Join Date
    Jan 2003
    Location
    San Jose, Ca
    Posts
    2,089
    Along with pressure the density of the gas will have an effect on the noise the diaphgram will make. You may have to change the diaphgran to get a decient sound.
    Old snipes don't die they just loose their steam

  9. #9
    Join Date
    Oct 2005
    Posts
    4
    snipe70e, good point. I hadn't thought of that.

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