Exapansion for Cascade system

[andisaka]

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

[Emmett]

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.

[D.D.KORANNE]

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 .

[D.D.KORANNE]

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 .

[hundred]

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