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Thread: sub cooling valve
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05-01-2013, 10:57 PM #1
sub cooling valve
Anyone know of a subcooling valve similar to the sporlan BS series? Meuller bought the rights to the Sporlan valve and uses in the milk coolers but I wondered if anyone else made one....Danfoss maybe. Haven't found one yet.
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06-01-2013, 10:32 PM #2
Re: sub cooling valve
It's amazing what the web brings up, looking for info on your question I found the Sporlan patent application
http://www.google.com/patents/US3367...page&q&f=falseBrian - Newton Abbot, Devon, UK
Retired March 2015
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07-01-2013, 12:21 AM #3
Re: sub cooling valve
Hi Brian_UK
an interesting read and concept, are they for critical charge systems?
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07-01-2013, 07:31 AM #4
Re: sub cooling valve
You would think Danfoss or whoever would be on to it if it were worthwhile, or maybe I"m missing something, as I don't know what situation it was designed for.
The patent was put in in 1968, even I was young then!
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07-01-2013, 09:39 PM #5
Re: sub cooling valve
I think the old Westinghouse heat pumps called Hi Re Li used a sub cooling exp valve on them also ...only seen it when on factory course though in Canada.
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07-01-2013, 10:50 PM #6
Re: sub cooling valve
I think they were mainly for preventing high discharge temperatures...
Sporlan Y1037 valve..
http://www.sporlanonline.com/10-10-2.pdfBrian - Newton Abbot, Devon, UK
Retired March 2015
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07-01-2013, 11:31 PM #7
Re: sub cooling valve
Yup, here is a diagram I made of it:
westinghouse mike1.pdf
Sporlan licensed it to Meuller for milk coolers and it extends the operating range down somewhat. Westinghouse used it in HPs but most techs couldn't get their heads around controlling subcooling rather than superheat and the bulb is on the liquid line prior to the pancake HX in the accumulator.
If I could buy the valve, it would have to be from Meuller hence the desire for another manufacturerLast edited by MikeHolm; 07-01-2013 at 11:38 PM.
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09-01-2013, 11:26 PM #8
Re: sub cooling valve
Ranco makes a small one. Danfoss used to make one but its not in the content of my current catalog.