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Thread: Cascade Refrigeration System
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02-09-2005, 06:22 AM #11
Re: Cascade Refrigeration System
Were these machines also used for a vacuum chamber/cold trap application?
I service also Polycold at a client and the gas costs indeed a fortune. Theyu have special top-off cilinders but even then, filled with small gold particles I think.
We once had serious troubles with a Polycold machine and a technician from Germany had to come.
He had a book with him with sevral pictures while they're were building a Polycold machine in the factory.
The gas mixs consists of 5 different refrigerants. Helium was the final ne, R114, I forgot the others.
But I found several autocascade gas-mixes on the net (patent databases)It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
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