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Old 08-01-2005, 09:15 PM
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Expansion Valve Size

This weekend I'll be converting my 87 300D from R134a back to R12. While double checking all of the items that I'll need, I noticed that the new expansion valve I ordered has a R134a label on it. Isn't a different valve used for each refridgerant? I can't seem to find part numbers for different valves for R12/R134a. Any advice from the A/C gurus would be appreciated.

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Old 08-02-2005, 09:10 AM
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Hey,
For what it's worth, I was told by an Indy just yesterday that they are selling the same expansion valve for both 134 and R-12 systems.
The evaporator working pressures are almost identical. It's the condensing pressures that are so much different.

Danny
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Old 08-02-2005, 09:18 AM
LarryBible
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That's about all you can get these days. It will work fine.

Good luck,
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Old 08-02-2005, 12:08 PM
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OK. Thanks!

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