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  1. #1
    andisaka's Avatar
    andisaka Guest

    Smile Exapansion for Cascade system



    I have a project cascade system -60 degrees C bolt use refrigeran R-23 ( low Satage) and second refrigean R-404 (two stage) , i want to ask expasi valve type R-23 for cascade system of -60 degrees C. Thanks



  2. #2
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    Re: Exapansion for Cascade system

    I haven't worked with R-23 in many years, it is just about the holidays but when I get back I am certain I can provide some information. Why R-23? it runs higher pressure and temperature then R-508B or R-13.
    Also if you speak to a expansion valve manufacturer I have found that they will almost always recomend a valve for your application.

  3. #3
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    Re: Exapansion for Cascade system

    what is the capacity of low side in kw ? TEX mfr can support you in the selection of valve for R-23 like Sporlan, danfoss, alco etc . They can guide you .

  4. #4
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    Re: Exapansion for Cascade system

    Besides, you need an oil separator which is efficient 99% in r-23 system. Such applications are frought with oil return difficulties to compressor . Borosilicate microfibre type oil separator would be a good idea . Many systems are failure prone in the absence of a good separator ; conventional ones would not do a good job of oil return.compressor failures are frequent .

  5. #5
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    Re: Exapansion for Cascade system

    You can use a electronic expansion valve from Danfoss is AKV model.

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