R-422D PT Chart

R-422D saturation pressure, −40 to 150 °F−40 to 65 °C. Used in R-22 retrofits.

How to use ↓

Safety class A1Zeotropic blendGlide 6.37 °F at 40 °F evapGlide 3.54 K at 4.4 °C evap

PT lookup

Step 1 Refrigerant

Step 2 I know the

Temperature Pressure

Step 3 Temperature

°F°C

Type a temperature to see the saturation pressure.

R-422D pressure temperature table

Liquid = bubble (subcooling). Vapor = dew (superheat). Below 0 psig: inches of mercury vacuum. Highlighted: 40 °F and 100 °F.Liquid = bubble (subcooling). Vapor = dew (superheat). Negative kPa = vacuum. Highlighted: 4 °C and 38 °C.

R-422D saturation pressure by temperature, °F and psig (vacuum in inches of mercury)
°F	Liquid bubble, psig	Vapor dew, psig
-40	2.4	2.3 inHg
-39	2.8	1.6 inHg
-38	3.3	0.8 inHg
-37	3.7	0.0
-36	4.2	0.4
-35	4.7	0.8
-34	5.1	1.2
-33	5.6	1.7
-32	6.1	2.1
-31	6.6	2.5
-30	7.2	3.0
-29	7.7	3.5
-28	8.2	3.9
-27	8.8	4.4
-26	9.3	4.9
-25	9.9	5.4
-24	10.5	5.9
-23	11.1	6.5
-22	11.7	7.0
-21	12.3	7.5
-20	12.9	8.1
-19	13.6	8.7
-18	14.2	9.2
-17	14.9	9.8
-16	15.5	10.4
-15	16.2	11.0
-14	16.9	11.7
-13	17.6	12.3
-12	18.3	12.9
-11	19.1	13.6
-10	19.8	14.3
-9	20.6	14.9
-8	21.3	15.6
-7	22.1	16.3
-6	22.9	17.1
-5	23.7	17.8
-4	24.5	18.5
-3	25.4	19.3
-2	26.2	20.1
-1	27.1	20.9
0	28.0	21.7
1	28.8	22.5
2	29.7	23.3
3	30.7	24.1
4	31.6	25.0
5	32.5	25.8
6	33.5	26.7
7	34.5	27.6
8	35.5	28.5
9	36.5	29.5
10	37.5	30.4
11	38.5	31.4
12	39.6	32.3
13	40.6	33.3
14	41.7	34.3
15	42.8	35.3
16	43.9	36.4
17	45.1	37.4
18	46.2	38.5
19	47.4	39.6
20	48.5	40.7
21	49.7	41.8
22	51.0	42.9
23	52.2	44.1
24	53.4	45.2
25	54.7	46.4
26	56.0	47.6
27	57.3	48.8
28	58.6	50.1
29	60.0	51.3
30	61.3	52.6
31	62.7	53.9
32	64.1	55.2
33	65.5	56.5
34	66.9	57.9
35	68.4	59.3
36	69.8	60.6
37	71.3	62.1
38	72.8	63.5
39	74.4	64.9
40	75.9	66.4
41	77.5	67.9
42	79.1	69.4
43	80.7	70.9
44	82.3	72.5
45	84.0	74.0
46	85.6	75.6
47	87.3	77.2
48	89.1	78.9
49	90.8	80.5
50	92.6	82.2
51	94.3	83.9
52	96.1	85.6
53	98.0	87.4
54	99.8	89.1
55	101.7	90.9
56	103.6	92.7
57	105.5	94.6
58	107.4	96.4
59	109.4	98.3
60	111.4	100.2
61	113.4	102.2
62	115.4	104.1
63	117.5	106.1
64	119.5	108.1
65	121.7	110.1
66	123.8	112.2
67	125.9	114.3
68	128.1	116.4
69	130.3	118.5
70	132.6	120.7
71	134.8	122.8
72	137.1	125.0
73	139.4	127.3
74	141.7	129.5
75	144.1	131.8
76	146.5	134.1
77	148.9	136.5
78	151.3	138.9
79	153.8	141.2
80	156.3	143.7
81	158.8	146.1
82	161.3	148.6
83	163.9	151.1
84	166.5	153.7
85	169.2	156.2
86	171.8	158.8
87	174.5	161.4
88	177.2	164.1
89	180.0	166.8
90	182.7	169.5
91	185.6	172.2
92	188.4	175.0
93	191.2	177.8
94	194.1	180.7
95	197.1	183.5
96	200.0	186.4
97	203.0	189.4
98	206.0	192.3
99	209.1	195.3
100	212.2	198.4
101	215.3	201.4
102	218.4	204.5
103	221.6	207.7
104	224.8	210.8
105	228.0	214.0
106	231.3	217.2
107	234.6	220.5
108	237.9	223.8
109	241.3	227.1
110	244.7	230.5
111	248.1	233.9
112	251.6	237.4
113	255.1	240.8
114	258.7	244.3
115	262.2	247.9
116	265.9	251.5
117	269.5	255.1
118	273.2	258.8
119	276.9	262.5
120	280.6	266.2
121	284.4	270.0
122	288.3	273.8
123	292.1	277.6
124	296.0	281.5
125	300.0	285.5
126	303.9	289.5
127	307.9	293.5
128	312.0	297.5
129	316.1	301.6
130	320.2	305.8
131	324.4	309.9
132	328.6	314.2
133	332.8	318.4
134	337.1	322.7
135	341.4	327.1
136	345.8	331.5
137	350.2	335.9
138	354.7	340.4
139	359.2	345.0
140	363.7	349.6
141	368.3	354.2
142	372.9	358.9
143	377.5	363.6
144	382.2	368.4
145	387.0	373.2
146	391.8	378.1
147	396.6	383.0
148	401.5	388.0
149	406.4	393.0
150	411.4	398.1

R-422D saturation pressure by temperature, °C and kPa (negative = vacuum)
°C	Liquid bubble, kPa	Vapor dew, kPa
-40	16.4	-8.0
-39	21.8	-3.2
-38	27.5	1.7
-37	33.4	6.8
-36	39.5	12.1
-35	45.8	17.6
-34	52.3	23.3
-33	59.0	29.2
-32	66.0	35.3
-31	73.2	41.7
-30	80.6	48.3
-29	88.3	55.1
-28	96.2	62.1
-27	104.4	69.4
-26	112.8	77.0
-25	121.5	84.8
-24	130.5	92.9
-23	139.7	101.2
-22	149.3	109.8
-21	159.1	118.7
-20	169.2	127.8
-19	179.6	137.3
-18	190.3	147.1
-17	201.3	157.1
-16	212.6	167.5
-15	224.3	178.2
-14	236.3	189.2
-13	248.6	200.5
-12	261.3	212.2
-11	274.3	224.2
-10	287.6	236.6
-9	301.3	249.3
-8	315.4	262.3
-7	329.8	275.8
-6	344.6	289.6
-5	359.8	303.8
-4	375.4	318.3
-3	391.4	333.3
-2	407.8	348.7
-1	424.6	364.5
0	441.8	380.6
1	459.4	397.2
2	477.5	414.3
3	496.0	431.8
4	514.9	449.7
5	534.3	468.0
6	554.1	486.8
7	574.4	506.1
8	595.2	525.9
9	616.4	546.1
10	638.1	566.8
11	660.3	588.0
12	683.0	609.7
13	706.2	632.0
14	730.0	654.7
15	754.2	677.9
16	778.9	701.7
17	804.2	726.0
18	830.0	750.9
19	856.4	776.3
20	883.3	802.3
21	910.8	828.9
22	938.9	856.0
23	967.5	883.8
24	996.7	912.1
25	1026.5	941.0
26	1056.9	970.5
27	1087.9	1000.7
28	1119.5	1031.5
29	1151.8	1062.9
30	1184.6	1095.0
31	1218.2	1127.7
32	1252.3	1161.2
33	1287.1	1195.2
34	1322.6	1230.0
35	1358.7	1265.5
36	1395.6	1301.6
37	1433.1	1338.5
38	1471.3	1376.1
39	1510.2	1414.4
40	1549.8	1453.5
41	1590.2	1493.3
42	1631.3	1533.9
43	1673.1	1575.3
44	1715.7	1617.5
45	1759.0	1660.5
46	1803.1	1704.3
47	1848.0	1748.9
48	1893.7	1794.3
49	1940.2	1840.6
50	1987.5	1887.7
51	2035.6	1935.8
52	2084.6	1984.7
53	2134.3	2034.5
54	2185.0	2085.3
55	2236.5	2137.0
56	2288.9	2189.6
57	2342.2	2243.2
58	2396.4	2297.8
59	2451.5	2353.4
60	2507.5	2410.1
61	2564.5	2467.8
62	2622.4	2526.5
63	2681.3	2586.4
64	2741.2	2647.4
65	2802.1	2709.6

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R-422D PT Chart

°F / psig · Safety class A1 · Zeotropic blend

refrigerantptchart.com

°F	Liquid	Vapor
-40	2.4	2.3"
-39	2.8	1.6"
-38	3.3	0.8"
-37	3.7	0.0
-36	4.2	0.4
-35	4.7	0.8
-34	5.1	1.2
-33	5.6	1.7
-32	6.1	2.1
-31	6.6	2.5
-30	7.2	3.0
-29	7.7	3.5
-28	8.2	3.9
-27	8.8	4.4
-26	9.3	4.9
-25	9.9	5.4
-24	10.5	5.9
-23	11.1	6.5
-22	11.7	7.0
-21	12.3	7.5
-20	12.9	8.1
-19	13.6	8.7
-18	14.2	9.2
-17	14.9	9.8
-16	15.5	10.4
-15	16.2	11.0
-14	16.9	11.7
-13	17.6	12.3
-12	18.3	12.9
-11	19.1	13.6
-10	19.8	14.3
-9	20.6	14.9
-8	21.3	15.6
-7	22.1	16.3
-6	22.9	17.1
-5	23.7	17.8
-4	24.5	18.5
-3	25.4	19.3
-2	26.2	20.1
-1	27.1	20.9
0	28.0	21.7
1	28.8	22.5
2	29.7	23.3
3	30.7	24.1
4	31.6	25.0
5	32.5	25.8
6	33.5	26.7
7	34.5	27.6

°F	Liquid	Vapor
8	35.5	28.5
9	36.5	29.5
10	37.5	30.4
11	38.5	31.4
12	39.6	32.3
13	40.6	33.3
14	41.7	34.3
15	42.8	35.3
16	43.9	36.4
17	45.1	37.4
18	46.2	38.5
19	47.4	39.6
20	48.5	40.7
21	49.7	41.8
22	51.0	42.9
23	52.2	44.1
24	53.4	45.2
25	54.7	46.4
26	56.0	47.6
27	57.3	48.8
28	58.6	50.1
29	60.0	51.3
30	61.3	52.6
31	62.7	53.9
32	64.1	55.2
33	65.5	56.5
34	66.9	57.9
35	68.4	59.3
36	69.8	60.6
37	71.3	62.1
38	72.8	63.5
39	74.4	64.9
40	75.9	66.4
41	77.5	67.9
42	79.1	69.4
43	80.7	70.9
44	82.3	72.5
45	84.0	74.0
46	85.6	75.6
47	87.3	77.2
48	89.1	78.9
49	90.8	80.5
50	92.6	82.2
51	94.3	83.9
52	96.1	85.6
53	98.0	87.4
54	99.8	89.1
55	101.7	90.9

°F	Liquid	Vapor
56	103.6	92.7
57	105.5	94.6
58	107.4	96.4
59	109.4	98.3
60	111.4	100.2
61	113.4	102.2
62	115.4	104.1
63	117.5	106.1
64	119.5	108.1
65	121.7	110.1
66	123.8	112.2
67	125.9	114.3
68	128.1	116.4
69	130.3	118.5
70	132.6	120.7
71	134.8	122.8
72	137.1	125.0
73	139.4	127.3
74	141.7	129.5
75	144.1	131.8
76	146.5	134.1
77	148.9	136.5
78	151.3	138.9
79	153.8	141.2
80	156.3	143.7
81	158.8	146.1
82	161.3	148.6
83	163.9	151.1
84	166.5	153.7
85	169.2	156.2
86	171.8	158.8
87	174.5	161.4
88	177.2	164.1
89	180.0	166.8
90	182.7	169.5
91	185.6	172.2
92	188.4	175.0
93	191.2	177.8
94	194.1	180.7
95	197.1	183.5
96	200.0	186.4
97	203.0	189.4
98	206.0	192.3
99	209.1	195.3
100	212.2	198.4
101	215.3	201.4
102	218.4	204.5
103	221.6	207.7

°F	Liquid	Vapor
104	224.8	210.8
105	228.0	214.0
106	231.3	217.2
107	234.6	220.5
108	237.9	223.8
109	241.3	227.1
110	244.7	230.5
111	248.1	233.9
112	251.6	237.4
113	255.1	240.8
114	258.7	244.3
115	262.2	247.9
116	265.9	251.5
117	269.5	255.1
118	273.2	258.8
119	276.9	262.5
120	280.6	266.2
121	284.4	270.0
122	288.3	273.8
123	292.1	277.6
124	296.0	281.5
125	300.0	285.5
126	303.9	289.5
127	307.9	293.5
128	312.0	297.5
129	316.1	301.6
130	320.2	305.8
131	324.4	309.9
132	328.6	314.2
133	332.8	318.4
134	337.1	322.7
135	341.4	327.1
136	345.8	331.5
137	350.2	335.9
138	354.7	340.4
139	359.2	345.0
140	363.7	349.6
141	368.3	354.2
142	372.9	358.9
143	377.5	363.6
144	382.2	368.4
145	387.0	373.2
146	391.8	378.1
147	396.6	383.0
148	401.5	388.0
149	406.4	393.0
150	411.4	398.1

Liquid = bubble (use for subcooling). Vapor = dew (use for superheat). Italic " = inches of mercury vacuum. Bold rows: 40 °F and 100 °F. Reference only: always verify with the manufacturer’s data and your gauges.

R-422D PT Chart

°C / kPa (gauge) · Safety class A1 · Zeotropic blend

refrigerantptchart.com

°C	Liquid	Vapor
-40	16.4	-8.0
-39	21.8	-3.2
-38	27.5	1.7
-37	33.4	6.8
-36	39.5	12.1
-35	45.8	17.6
-34	52.3	23.3
-33	59.0	29.2
-32	66.0	35.3
-31	73.2	41.7
-30	80.6	48.3
-29	88.3	55.1
-28	96.2	62.1
-27	104.4	69.4
-26	112.8	77.0
-25	121.5	84.8
-24	130.5	92.9
-23	139.7	101.2
-22	149.3	109.8
-21	159.1	118.7
-20	169.2	127.8
-19	179.6	137.3
-18	190.3	147.1
-17	201.3	157.1
-16	212.6	167.5
-15	224.3	178.2
-14	236.3	189.2
-13	248.6	200.5
-12	261.3	212.2
-11	274.3	224.2
-10	287.6	236.6
-9	301.3	249.3
-8	315.4	262.3
-7	329.8	275.8
-6	344.6	289.6
-5	359.8	303.8

°C	Liquid	Vapor
-4	375.4	318.3
-3	391.4	333.3
-2	407.8	348.7
-1	424.6	364.5
0	441.8	380.6
1	459.4	397.2
2	477.5	414.3
3	496.0	431.8
4	514.9	449.7
5	534.3	468.0
6	554.1	486.8
7	574.4	506.1
8	595.2	525.9
9	616.4	546.1
10	638.1	566.8
11	660.3	588.0
12	683.0	609.7
13	706.2	632.0
14	730.0	654.7
15	754.2	677.9
16	778.9	701.7
17	804.2	726.0
18	830.0	750.9
19	856.4	776.3
20	883.3	802.3
21	910.8	828.9
22	938.9	856.0
23	967.5	883.8
24	996.7	912.1
25	1026.5	941.0
26	1056.9	970.5
27	1087.9	1000.7
28	1119.5	1031.5
29	1151.8	1062.9
30	1184.6	1095.0
31	1218.2	1127.7

°C	Liquid	Vapor
32	1252.3	1161.2
33	1287.1	1195.2
34	1322.6	1230.0
35	1358.7	1265.5
36	1395.6	1301.6
37	1433.1	1338.5
38	1471.3	1376.1
39	1510.2	1414.4
40	1549.8	1453.5
41	1590.2	1493.3
42	1631.3	1533.9
43	1673.1	1575.3
44	1715.7	1617.5
45	1759.0	1660.5
46	1803.1	1704.3
47	1848.0	1748.9
48	1893.7	1794.3
49	1940.2	1840.6
50	1987.5	1887.7
51	2035.6	1935.8
52	2084.6	1984.7
53	2134.3	2034.5
54	2185.0	2085.3
55	2236.5	2137.0
56	2288.9	2189.6
57	2342.2	2243.2
58	2396.4	2297.8
59	2451.5	2353.4
60	2507.5	2410.1
61	2564.5	2467.8
62	2622.4	2526.5
63	2681.3	2586.4
64	2741.2	2647.4
65	2802.1	2709.6

Liquid = bubble (use for subcooling). Vapor = dew (use for superheat). Negative kPa = vacuum. Bold rows: 4 °C and 38 °C. Reference only: always verify with the manufacturer’s data and your gauges.

How to use

Choose Temperature or Pressure and type the number. The answer shows straight away.
Blends show two values: use vapor (dew) for superheat and liquid (bubble) for subcooling.
Tap °C · kPa for metric. Below 0 psig, pressure is in inches of mercury (inHg) vacuum.
Press Print pocket chart for a one-page chart (Letter or A4) for the van or the tool bag.

About this R-422D chart

This R-422D pressure temperature chart gives the saturation pressure for every degree, in psig with °F or kPa (gauge) with °C. As a blend, it has a liquid (bubble) and a vapor (dew) column. Below 0 psig the °F table shows inches of mercury (inHg) vacuum.

Source: manufacturer charts (Chemours, Honeywell). Reference only: always verify with the manufacturer’s data and your gauges.

FAQ

What is the R-422D pressure at 40 °F?

66.4 psig vapor (dew) and 75.9 psig liquid (bubble) at saturation, from the table above.

What is the R-422D pressure at 100 °F?

198.4 psig vapor (dew) and 212.2 psig liquid (bubble) at saturation.

Which column do I use for superheat and subcooling?

Use vapor (dew) for superheat and liquid (bubble) for subcooling. R-422D has 6.37 °F of glide at a 40 °F evaporator, so the two columns differ.

R-422D PT Chart

PT lookup

R-422D pressure temperature table

How to use

About this R-422D chart

FAQ

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