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Temperature glide: bubble point and dew point for a refrigerant blend

At one pressure, a blend with glide starts boiling at the bubble point and finishes at the dew point. Use dew for superheat and bubble for subcooling.

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Guides that use this diagram

How to Read a PT Chart: Saturation, Dew Point, Bubble Point and Glide
R-32 vs. R-454B: The Differences That Matter on a Service Call
R-454B for Technicians: Pressures, Charging, Tools and Safety
Superheat vs. Subcooling: What Each Tells You and When to Charge by Which

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