REFRIGERANT • PT DATA v1

R-422B

PT data, curve stats, and quick routes into the field calculators. Data shown here is derived from the versioned PT asset set under /assets/pt/v1.

At a glance

SAFETY • A1
CURVE • dew
POINTS • 336
GWP
2500
ODP
Curves available
Dew + Bubble
Pressure range (psig)
-14.6 to 538.07
Temperature range (°F)
-156 to 179
Note: PT points are stored in psig and °F. For blends, bubble and dew represent different saturation states. Always follow OEM charging procedures.

Quick actions

These routes are designed to be technician-friendly: minimal taps, prefilled context, and predictable URLs for bookmarks and sharing.

Open PT Chart
Fast lookup (pressure ↔ temp)
Open →
Browse Equipment
See equipment using this refrigerant
Open →
Superheat/Subcool
Preselect this refrigerant
Open →
Charge Calculator
Line set adjustments
Open →
Curve toggle
Tip: For blends, evaporator saturation is typically based on dew, and condenser saturation is typically based on bubble.

Pressure → Saturation temperature (quick)

Linear interpolation between nearest points. Out-of-range values show “—”.

Pressure (psig)Sat Temp (°F)Source
0-32.6linear
258.8linear
5032.8linear
7550.6linear
10064.9linear
15087.7linear
200105.8linear
250120.9linear
300133.9linear
350145.5linear
400155.8linear
450165.1linear

Temperature → Saturation pressure (quick)

Useful for “I have a target saturation temp—what pressure should I see?” checks.

Temp (°F)Sat Pressure (psig)Source
-40-2.7exact
-205.7exact
018exact
2035.5exact
4059.4exact
6090.9exact
80131.5exact
100182.9exact
120246.9exact
140325.6exact

Data source & notes

PT asset ID
r422b
Original name
R-422B
CAS
354-33-6 / 811-97-2 / 75-28-5
Units
psig / F (atm: 14.6959 psi)
Default curve
dew
PT index version
v1(from /assets/pt/v1/index.json)
Safety note: PT lookups are a foundational building block for charging and diagnostics, but they do not replace OEM procedures or full system context.