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  1. #1
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    expansion valve sizing



    hi everybody, i m new to refrigeration engineering, hope can get some help, my question is...
    for sizing, i need the following data

    - pressure drop ( the pressure between TEV and compressor suction? )
    - capacity ( compressor capacity? )
    - evaporating temperature ( i have no idea for this )

    for example.. if i have a 37kw compressor



  2. #2
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    Re: expansion valve sizing

    first you have to learn how TEV is works,
    2nd you need these information ,discharge & suction pressure - Room temperature-Evaporator temperature - Evaporator Capacity - and ....
    3rd in table you chose your TEY.
    Last edited by mbc; 22-09-2011 at 03:59 AM.

  3. #3
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    Re: expansion valve sizing

    First you need to choose the right size evaporator for your job, above or below zero, kind of defrost if any, Humidity required in the cold room, etc. etc.

    Choosing the TXV depends of evaporating temp, refrigerant to be used.

    Last comes condensing unit to fit the chosen capacity and ambient temp.

  4. #4
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    Re: expansion valve sizing

    Pls go through sporlan , danfoss , alco ,catalogs ......... Selection procedures are well explained therein

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

    Try this Sporlan Literature site, it has just about everything that you need to know.

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

    thanks for your reply, i think i need some time to check it..

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