R-453A PT Chart

R-453A saturation pressure, −40 to 150 °F−40 to 65 °C. Used in R-22 retrofits (RS-70).

How to use ↓

Safety class A1Zeotropic blendGlide 11.72 °F at 40 °F evapGlide 6.51 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-453A 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-453A saturation pressure by temperature, °F and psig (vacuum in inches of mercury)
°F	Liquid bubble, psig	Vapor dew, psig
-40	1.6	6.6 inHg
-39	2.1	5.9 inHg
-38	2.5	5.3 inHg
-37	2.9	4.6 inHg
-36	3.4	3.8 inHg
-35	3.9	3.1 inHg
-34	4.3	2.4 inHg
-33	4.8	1.6 inHg
-32	5.3	0.8 inHg
-31	5.8	0.0
-30	6.3	0.4
-29	6.8	0.8
-28	7.4	1.2
-27	7.9	1.6
-26	8.4	2.1
-25	9.0	2.5
-24	9.6	3.0
-23	10.2	3.4
-22	10.7	3.9
-21	11.3	4.4
-20	12.0	4.9
-19	12.6	5.4
-18	13.2	5.9
-17	13.9	6.4
-16	14.5	6.9
-15	15.2	7.5
-14	15.9	8.0
-13	16.6	8.6
-12	17.3	9.2
-11	18.0	9.7
-10	18.7	10.3
-9	19.5	11.0
-8	20.2	11.6
-7	21.0	12.2
-6	21.8	12.8
-5	22.6	13.5
-4	23.4	14.2
-3	24.2	14.8
-2	25.1	15.5
-1	25.9	16.2
0	26.8	16.9
1	27.7	17.7
2	28.6	18.4
3	29.5	19.2
4	30.4	19.9
5	31.3	20.7
6	32.3	21.5
7	33.2	22.3
8	34.2	23.1
9	35.2	24.0
10	36.2	24.8
11	37.3	25.7
12	38.3	26.6
13	39.4	27.4
14	40.5	28.3
15	41.5	29.3
16	42.7	30.2
17	43.8	31.2
18	44.9	32.1
19	46.1	33.1
20	47.3	34.1
21	48.5	35.1
22	49.7	36.2
23	50.9	37.2
24	52.1	38.3
25	53.4	39.3
26	54.7	40.4
27	56.0	41.6
28	57.3	42.7
29	58.6	43.8
30	60.0	45.0
31	61.4	46.2
32	62.8	47.4
33	64.2	48.6
34	65.6	49.9
35	67.1	51.1
36	68.5	52.4
37	70.0	53.7
38	71.5	55.0
39	73.1	56.3
40	74.6	57.7
41	76.2	59.1
42	77.8	60.4
43	79.4	61.9
44	81.0	63.3
45	82.7	64.7
46	84.4	66.2
47	86.1	67.7
48	87.8	69.2
49	89.5	70.8
50	91.3	72.3
51	93.1	73.9
52	94.9	75.5
53	96.7	77.1
54	98.6	78.8
55	100.5	80.4
56	102.4	82.1
57	104.3	83.8
58	106.3	85.6
59	108.2	87.3
60	110.2	89.1
61	112.2	90.9
62	114.3	92.7
63	116.4	94.6
64	118.5	96.5
65	120.6	98.4
66	122.7	100.3
67	124.9	102.2
68	127.1	104.2
69	129.3	106.2
70	131.6	108.3
71	133.8	110.3
72	136.1	112.4
73	138.4	114.5
74	140.8	116.6
75	143.2	118.8
76	145.6	121.0
77	148.0	123.2
78	150.5	125.4
79	153.0	127.7
80	155.5	130.0
81	158.0	132.3
82	160.6	134.7
83	163.2	137.0
84	165.8	139.5
85	168.5	141.9
86	171.1	144.4
87	173.9	146.9
88	176.6	149.4
89	179.4	151.9
90	182.2	154.5
91	185.0	157.2
92	187.9	159.8
93	190.8	162.5
94	193.7	165.2
95	196.6	167.9
96	199.6	170.7
97	202.6	173.5
98	205.7	176.4
99	208.8	179.2
100	211.9	182.1
101	215.0	185.1
102	218.2	188.0
103	221.4	191.1
104	224.6	194.1
105	227.9	197.2
106	231.2	200.3
107	234.5	203.4
108	237.9	206.6
109	241.3	209.8
110	244.7	213.1
111	248.2	216.3
112	251.7	219.7
113	255.2	223.0
114	258.8	226.4
115	262.4	229.9
116	266.1	233.3
117	269.7	236.8
118	273.4	240.4
119	277.2	244.0
120	281.0	247.6
121	284.8	251.2
122	288.6	254.9
123	292.5	258.7
124	296.5	262.5
125	300.4	266.3
126	304.4	270.1
127	308.5	274.1
128	312.6	278.0
129	316.7	282.0
130	320.8	286.0
131	325.0	290.1
132	329.2	294.2
133	333.5	298.3
134	337.8	302.5
135	342.2	306.8
136	346.5	311.1
137	351.0	315.4
138	355.4	319.8
139	359.9	324.2
140	364.5	328.7
141	369.1	333.2
142	373.7	337.7
143	378.4	342.3
144	383.1	347.0
145	387.8	351.7
146	392.6	356.4
147	397.4	361.2
148	402.3	366.0
149	407.2	370.9
150	412.2	375.9

R-453A saturation pressure by temperature, °C and kPa (negative = vacuum)
°C	Liquid bubble, kPa	Vapor dew, kPa
-40	11.2	-22.4
-39	16.6	-18.3
-38	22.1	-14.0
-37	27.8	-9.5
-36	33.8	-4.9
-35	39.9	-0.1
-34	46.3	4.9
-33	52.9	10.1
-32	59.7	15.5
-31	66.8	21.1
-30	74.1	26.9
-29	81.6	32.9
-28	89.4	39.2
-27	97.5	45.6
-26	105.8	52.3
-25	114.3	59.2
-24	123.2	66.4
-23	132.3	73.8
-22	141.7	81.5
-21	151.4	89.4
-20	161.4	97.6
-19	171.7	106.1
-18	182.3	114.8
-17	193.2	123.8
-16	204.4	133.2
-15	216.0	142.8
-14	227.9	152.7
-13	240.1	162.9
-12	252.7	173.4
-11	265.6	184.3
-10	278.9	195.5
-9	292.5	207.0
-8	306.6	218.8
-7	321.0	231.0
-6	335.7	243.6
-5	350.9	256.5
-4	366.4	269.8
-3	382.4	283.5
-2	398.8	297.5
-1	415.6	312.0
0	432.8	326.8
1	450.4	342.0
2	468.5	357.7
3	487.0	373.7
4	505.9	390.2
5	525.4	407.2
6	545.3	424.5
7	565.6	442.4
8	586.4	460.6
9	607.7	479.4
10	629.6	498.6
11	651.9	518.3
12	674.7	538.5
13	698.0	559.2
14	721.8	580.4
15	746.2	602.1
16	771.1	624.3
17	796.6	647.1
18	822.5	670.4
19	849.1	694.2
20	876.2	718.6
21	903.9	743.6
22	932.2	769.1
23	961.0	795.3
24	990.5	822.0
25	1020.5	849.3
26	1051.2	877.3
27	1082.4	905.8
28	1114.3	935.0
29	1146.8	964.9
30	1180.0	995.3
31	1213.8	1026.5
32	1248.3	1058.3
33	1283.4	1090.8
34	1319.2	1124.0
35	1355.7	1157.9
36	1392.9	1192.5
37	1430.8	1227.8
38	1469.3	1263.9
39	1508.6	1300.7
40	1548.6	1338.2
41	1589.4	1376.5
42	1630.8	1415.6
43	1673.1	1455.5
44	1716.0	1496.2
45	1759.8	1537.7
46	1804.3	1580.0
47	1849.5	1623.2
48	1895.6	1667.2
49	1942.5	1712.1
50	1990.1	1757.8
51	2038.6	1804.4
52	2087.9	1851.9
53	2138.1	1900.4
54	2189.0	1949.7
55	2240.9	2000.0
56	2293.5	2051.2
57	2347.1	2103.4
58	2401.5	2156.6
59	2456.8	2210.8
60	2513.0	2266.0
61	2570.1	2322.2
62	2628.2	2379.4
63	2687.1	2437.7
64	2747.0	2497.0
65	2807.8	2557.4

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R-453A PT Chart

°F / psig · Safety class A1 · Zeotropic blend

refrigerantptchart.com

°F	Liquid	Vapor
-40	1.6	6.6"
-39	2.1	5.9"
-38	2.5	5.3"
-37	2.9	4.6"
-36	3.4	3.8"
-35	3.9	3.1"
-34	4.3	2.4"
-33	4.8	1.6"
-32	5.3	0.8"
-31	5.8	0.0
-30	6.3	0.4
-29	6.8	0.8
-28	7.4	1.2
-27	7.9	1.6
-26	8.4	2.1
-25	9.0	2.5
-24	9.6	3.0
-23	10.2	3.4
-22	10.7	3.9
-21	11.3	4.4
-20	12.0	4.9
-19	12.6	5.4
-18	13.2	5.9
-17	13.9	6.4
-16	14.5	6.9
-15	15.2	7.5
-14	15.9	8.0
-13	16.6	8.6
-12	17.3	9.2
-11	18.0	9.7
-10	18.7	10.3
-9	19.5	11.0
-8	20.2	11.6
-7	21.0	12.2
-6	21.8	12.8
-5	22.6	13.5
-4	23.4	14.2
-3	24.2	14.8
-2	25.1	15.5
-1	25.9	16.2
0	26.8	16.9
1	27.7	17.7
2	28.6	18.4
3	29.5	19.2
4	30.4	19.9
5	31.3	20.7
6	32.3	21.5
7	33.2	22.3

°F	Liquid	Vapor
8	34.2	23.1
9	35.2	24.0
10	36.2	24.8
11	37.3	25.7
12	38.3	26.6
13	39.4	27.4
14	40.5	28.3
15	41.5	29.3
16	42.7	30.2
17	43.8	31.2
18	44.9	32.1
19	46.1	33.1
20	47.3	34.1
21	48.5	35.1
22	49.7	36.2
23	50.9	37.2
24	52.1	38.3
25	53.4	39.3
26	54.7	40.4
27	56.0	41.6
28	57.3	42.7
29	58.6	43.8
30	60.0	45.0
31	61.4	46.2
32	62.8	47.4
33	64.2	48.6
34	65.6	49.9
35	67.1	51.1
36	68.5	52.4
37	70.0	53.7
38	71.5	55.0
39	73.1	56.3
40	74.6	57.7
41	76.2	59.1
42	77.8	60.4
43	79.4	61.9
44	81.0	63.3
45	82.7	64.7
46	84.4	66.2
47	86.1	67.7
48	87.8	69.2
49	89.5	70.8
50	91.3	72.3
51	93.1	73.9
52	94.9	75.5
53	96.7	77.1
54	98.6	78.8
55	100.5	80.4

°F	Liquid	Vapor
56	102.4	82.1
57	104.3	83.8
58	106.3	85.6
59	108.2	87.3
60	110.2	89.1
61	112.2	90.9
62	114.3	92.7
63	116.4	94.6
64	118.5	96.5
65	120.6	98.4
66	122.7	100.3
67	124.9	102.2
68	127.1	104.2
69	129.3	106.2
70	131.6	108.3
71	133.8	110.3
72	136.1	112.4
73	138.4	114.5
74	140.8	116.6
75	143.2	118.8
76	145.6	121.0
77	148.0	123.2
78	150.5	125.4
79	153.0	127.7
80	155.5	130.0
81	158.0	132.3
82	160.6	134.7
83	163.2	137.0
84	165.8	139.5
85	168.5	141.9
86	171.1	144.4
87	173.9	146.9
88	176.6	149.4
89	179.4	151.9
90	182.2	154.5
91	185.0	157.2
92	187.9	159.8
93	190.8	162.5
94	193.7	165.2
95	196.6	167.9
96	199.6	170.7
97	202.6	173.5
98	205.7	176.4
99	208.8	179.2
100	211.9	182.1
101	215.0	185.1
102	218.2	188.0
103	221.4	191.1

°F	Liquid	Vapor
104	224.6	194.1
105	227.9	197.2
106	231.2	200.3
107	234.5	203.4
108	237.9	206.6
109	241.3	209.8
110	244.7	213.1
111	248.2	216.3
112	251.7	219.7
113	255.2	223.0
114	258.8	226.4
115	262.4	229.9
116	266.1	233.3
117	269.7	236.8
118	273.4	240.4
119	277.2	244.0
120	281.0	247.6
121	284.8	251.2
122	288.6	254.9
123	292.5	258.7
124	296.5	262.5
125	300.4	266.3
126	304.4	270.1
127	308.5	274.1
128	312.6	278.0
129	316.7	282.0
130	320.8	286.0
131	325.0	290.1
132	329.2	294.2
133	333.5	298.3
134	337.8	302.5
135	342.2	306.8
136	346.5	311.1
137	351.0	315.4
138	355.4	319.8
139	359.9	324.2
140	364.5	328.7
141	369.1	333.2
142	373.7	337.7
143	378.4	342.3
144	383.1	347.0
145	387.8	351.7
146	392.6	356.4
147	397.4	361.2
148	402.3	366.0
149	407.2	370.9
150	412.2	375.9

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-453A PT Chart

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

refrigerantptchart.com

°C	Liquid	Vapor
-40	11.2	-22.4
-39	16.6	-18.3
-38	22.1	-14.0
-37	27.8	-9.5
-36	33.8	-4.9
-35	39.9	-0.1
-34	46.3	4.9
-33	52.9	10.1
-32	59.7	15.5
-31	66.8	21.1
-30	74.1	26.9
-29	81.6	32.9
-28	89.4	39.2
-27	97.5	45.6
-26	105.8	52.3
-25	114.3	59.2
-24	123.2	66.4
-23	132.3	73.8
-22	141.7	81.5
-21	151.4	89.4
-20	161.4	97.6
-19	171.7	106.1
-18	182.3	114.8
-17	193.2	123.8
-16	204.4	133.2
-15	216.0	142.8
-14	227.9	152.7
-13	240.1	162.9
-12	252.7	173.4
-11	265.6	184.3
-10	278.9	195.5
-9	292.5	207.0
-8	306.6	218.8
-7	321.0	231.0
-6	335.7	243.6
-5	350.9	256.5

°C	Liquid	Vapor
-4	366.4	269.8
-3	382.4	283.5
-2	398.8	297.5
-1	415.6	312.0
0	432.8	326.8
1	450.4	342.0
2	468.5	357.7
3	487.0	373.7
4	505.9	390.2
5	525.4	407.2
6	545.3	424.5
7	565.6	442.4
8	586.4	460.6
9	607.7	479.4
10	629.6	498.6
11	651.9	518.3
12	674.7	538.5
13	698.0	559.2
14	721.8	580.4
15	746.2	602.1
16	771.1	624.3
17	796.6	647.1
18	822.5	670.4
19	849.1	694.2
20	876.2	718.6
21	903.9	743.6
22	932.2	769.1
23	961.0	795.3
24	990.5	822.0
25	1020.5	849.3
26	1051.2	877.3
27	1082.4	905.8
28	1114.3	935.0
29	1146.8	964.9
30	1180.0	995.3
31	1213.8	1026.5

°C	Liquid	Vapor
32	1248.3	1058.3
33	1283.4	1090.8
34	1319.2	1124.0
35	1355.7	1157.9
36	1392.9	1192.5
37	1430.8	1227.8
38	1469.3	1263.9
39	1508.6	1300.7
40	1548.6	1338.2
41	1589.4	1376.5
42	1630.8	1415.6
43	1673.1	1455.5
44	1716.0	1496.2
45	1759.8	1537.7
46	1804.3	1580.0
47	1849.5	1623.2
48	1895.6	1667.2
49	1942.5	1712.1
50	1990.1	1757.8
51	2038.6	1804.4
52	2087.9	1851.9
53	2138.1	1900.4
54	2189.0	1949.7
55	2240.9	2000.0
56	2293.5	2051.2
57	2347.1	2103.4
58	2401.5	2156.6
59	2456.8	2210.8
60	2513.0	2266.0
61	2570.1	2322.2
62	2628.2	2379.4
63	2687.1	2437.7
64	2747.0	2497.0
65	2807.8	2557.4

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-453A chart

This R-453A 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: supplier chart (). Reference only: always verify with the manufacturer’s data and your gauges.

FAQ

What is the R-453A pressure at 40 °F?

57.7 psig vapor (dew) and 74.6 psig liquid (bubble) at saturation, from the table above.

What is the R-453A pressure at 100 °F?

182.1 psig vapor (dew) and 211.9 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-453A has 11.72 °F of glide at a 40 °F evaporator, so the two columns differ.

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R-453A PT Chart

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R-453A pressure temperature table

How to use

About this R-453A chart

FAQ

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