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  1. #1
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    expansion valve pressure drop



    hi all

    can you tell me why we need a large pressure drop across the expansion valve



  2. #2
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    Re: expansion valve pressure drop

    Change of aggregate state from liquid to gas Refrigerant

  3. #3
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    Re: expansion valve pressure drop

    Quote Originally Posted by brian connolly View Post
    hi all

    can you tell me why we need a large pressure drop across the expansion valve
    Hi Brian,

    The valve causes the pressure drop so the liquid refrigerant entering can boil off in the lower pressure area created by the expansion valve (and compressor) and absorb heat.

    Cheers,
    Andy.
    Health and safety first..........unless I'm in a hurry.

  4. #4
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    Re: expansion valve pressure drop

    Brian

    Can you make your posts in the Fundamental Section please.

    The 'Do you need help using this Message Board' is for questions about using the forum.

    Thanks


    The pressure drop across the expansion valve is to lower the temperature (and pressure) of the liquid refrigerant entering the evaporator.
    Last edited by frank; 02-11-2011 at 09:27 PM.
    I'm back on the Pale

  5. #5
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    Brian_UK is online now Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: expansion valve pressure drop

    Brian

    Have a look and read of the literature to be found on the Sporlan website, it covers most of the questions that you are asking or will be asking soon.

    http://www.sporlanonline.com/literature.shtml
    Brian - Newton Abbot, Devon, UK
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  6. #6
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    Re: expansion valve pressure drop

    B”H

    Sorry, I know that I am posting in a wrong section. In the previous version was a section where you can search for the members. I could not find the list of members in a new version of the Forum.
    Quote Originally Posted by frank View Post
    Brian

    Can you make your posts in the Fundamental Section please.

    The 'Do you need help using this Message Board' is for questions about using the forum.

    Thanks


    The pressure drop across the expansion valve is to lower the temperature (and pressure) of the liquid refrigerant entering the evaporator.

  7. #7
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    Re: expansion valve pressure drop

    Quote Originally Posted by michaelm View Post
    B”H

    Sorry, I know that I am posting in a wrong section. In the previous version was a section where you can search for the members. I could not find the list of members in a new version of the Forum.
    Hl Michael
    Click on Forum in the blue toolbar, then quick links just below and hit members online
    Cheers
    Stu
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  8. #8
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    Re: expansion valve pressure drop

    Hi Stu,
    B”H
    Thank you so much. I meant the full list of the Forum’s members and not the member who are on line.
    Quote Originally Posted by stufus View Post
    Hl Michael
    Click on Forum in the blue toolbar, then quick links just below and hit members online
    Cheers
    Stu

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