R-452A PT Chart

R-452A saturation pressure, −40 to 150 °F−40 to 65 °C. Used in transport and commercial refrigeration (an R-404A replacement).

How to use ↓

Safety class A1Zeotropic blendGlide 7.02 °F at 40 °F evapGlide 3.90 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-452A pressure temperature table

Liquid = bubble (subcooling). Vapor = dew (superheat). Highlighted: 40 °F and 100 °F.Liquid = bubble (subcooling). Vapor = dew (superheat). Negative kPa = vacuum. Highlighted: 4 °C and 38 °C.

R-452A saturation pressure by temperature, °F and psig (vacuum in inches of mercury)
°F	Liquid bubble, psig	Vapor dew, psig
-40	5.7	2.4
-39	6.2	2.8
-38	6.7	3.3
-37	7.2	3.7
-36	7.8	4.2
-35	8.3	4.7
-34	8.9	5.2
-33	9.5	5.7
-32	10.1	6.2
-31	10.7	6.8
-30	11.3	7.3
-29	11.9	7.8
-28	12.6	8.4
-27	13.2	9.0
-26	13.9	9.5
-25	14.6	10.1
-24	15.2	10.7
-23	15.9	11.3
-22	16.7	12.0
-21	17.4	12.6
-20	18.1	13.2
-19	18.9	13.9
-18	19.6	14.6
-17	20.4	15.3
-16	21.2	16.0
-15	22.0	16.7
-14	22.8	17.4
-13	23.6	18.1
-12	24.5	18.9
-11	25.3	19.6
-10	26.2	20.4
-9	27.1	21.2
-8	28.0	22.0
-7	28.9	22.8
-6	29.8	23.6
-5	30.8	24.5
-4	31.7	25.3
-3	32.7	26.2
-2	33.7	27.1
-1	34.7	28.0
0	35.7	28.9
1	36.8	29.8
2	37.8	30.7
3	38.9	31.7
4	40.0	32.7
5	41.1	33.7
6	42.2	34.7
7	43.4	35.7
8	44.5	36.7
9	45.7	37.8
10	46.9	38.8
11	48.1	39.9
12	49.3	41.0
13	50.6	42.2
14	51.8	43.3
15	53.1	44.4
16	54.4	45.6
17	55.7	46.8
18	57.1	48.0
19	58.4	49.2
20	59.8	50.5
21	61.2	51.7
22	62.6	53.0
23	64.0	54.3
24	65.5	55.6
25	66.9	57.0
26	68.4	58.3
27	70.0	59.7
28	71.5	61.1
29	73.0	62.5
30	74.6	64.0
31	76.2	65.4
32	77.8	66.9
33	79.5	68.4
34	81.1	69.9
35	82.8	71.4
36	84.5	73.0
37	86.2	74.6
38	88.0	76.2
39	89.8	77.8
40	91.6	79.4
41	93.4	81.1
42	95.2	82.8
43	97.1	84.5
44	99.0	86.2
45	100.9	88.0
46	102.8	89.8
47	104.8	91.6
48	106.7	93.4
49	108.7	95.3
50	110.8	97.1
51	112.8	99.0
52	114.9	101.0
53	117.0	102.9
54	119.1	104.9
55	121.3	106.9
56	123.5	108.9
57	125.7	111.0
58	127.9	113.0
59	130.2	115.1
60	132.4	117.3
61	134.8	119.4
62	137.1	121.6
63	139.5	123.8
64	141.8	126.0
65	144.3	128.3
66	146.7	130.6
67	149.2	132.9
68	151.7	135.2
69	154.2	137.6
70	156.8	140.0
71	159.4	142.4
72	162.0	144.9
73	164.6	147.4
74	167.3	149.9
75	170.0	152.4
76	172.7	155.0
77	175.5	157.6
78	178.3	160.2
79	181.1	162.9
80	183.9	165.6
81	186.8	168.3
82	189.7	171.1
83	192.7	173.9
84	195.6	176.7
85	198.6	179.5
86	201.7	182.4
87	204.8	185.3
88	207.9	188.3
89	211.0	191.3
90	214.1	194.3
91	217.3	197.3
92	220.6	200.4
93	223.8	203.5
94	227.1	206.7
95	230.5	209.9
96	233.8	213.1
97	237.2	216.4
98	240.6	219.7
99	244.1	223.0
100	247.6	226.4
101	251.1	229.8
102	254.7	233.2
103	258.3	236.7
104	261.9	240.2
105	265.6	243.7
106	269.3	247.3
107	273.1	251.0
108	276.8	254.6
109	280.6	258.3
110	284.5	262.1
111	288.4	265.9
112	292.3	269.7
113	296.3	273.6
114	300.3	277.5
115	304.3	281.4
116	308.4	285.4
117	312.5	289.4
118	316.7	293.5
119	320.9	297.6
120	325.1	301.8
121	329.4	306.0
122	333.7	310.3
123	338.0	314.6
124	342.4	318.9
125	346.8	323.3
126	351.3	327.7
127	355.8	332.2
128	360.4	336.7
129	365.0	341.3
130	369.6	345.9
131	374.3	350.6
132	379.0	355.3
133	383.7	360.1
134	388.5	364.9
135	393.4	369.8
136	398.3	374.7
137	403.2	379.7
138	408.2	384.8
139	413.2	389.8
140	418.3	395.0
141	423.4	400.2
142	428.5	405.5
143	433.7	410.8
144	438.9	416.2
145	444.2	421.6
146	449.6	427.1
147	454.9	432.7
148	460.4	438.3
149	465.8	444.0
150	471.3	449.8

R-452A saturation pressure by temperature, °C and kPa (negative = vacuum)
°C	Liquid bubble, kPa	Vapor dew, kPa
-40	39.0	16.4
-39	45.5	22.0
-38	52.2	27.8
-37	59.1	33.8
-36	66.3	40.1
-35	73.7	46.6
-34	81.4	53.3
-33	89.4	60.2
-32	97.6	67.4
-31	106.1	74.8
-30	114.8	82.5
-29	123.9	90.5
-28	133.2	98.7
-27	142.8	107.1
-26	152.7	115.9
-25	162.9	124.9
-24	173.5	134.2
-23	184.3	143.8
-22	195.5	153.8
-21	207.0	164.0
-20	218.9	174.5
-19	231.1	185.4
-18	243.6	196.5
-17	256.5	208.1
-16	269.8	219.9
-15	283.4	232.1
-14	297.4	244.7
-13	311.8	257.6
-12	326.6	270.8
-11	341.7	284.5
-10	357.3	298.5
-9	373.3	312.9
-8	389.7	327.7
-7	406.5	342.9
-6	423.7	358.5
-5	441.4	374.5
-4	459.5	391.0
-3	478.1	407.9
-2	497.1	425.2
-1	516.6	442.9
0	536.6	461.1
1	557.0	479.8
2	578.0	498.9
3	599.4	518.6
4	621.3	538.6
5	643.7	559.2
6	666.7	580.3
7	690.1	601.9
8	714.1	624.0
9	738.6	646.6
10	763.7	669.8
11	789.3	693.5
12	815.5	717.7
13	842.2	742.5
14	869.5	767.8
15	897.4	793.8
16	925.9	820.3
17	955.0	847.4
18	984.6	875.1
19	1014.9	903.4
20	1045.8	932.3
21	1077.4	961.9
22	1109.5	992.1
23	1142.3	1022.9
24	1175.8	1054.4
25	1209.9	1086.6
26	1244.7	1119.4
27	1280.1	1153.0
28	1316.2	1187.2
29	1353.1	1222.1
30	1390.6	1257.8
31	1428.8	1294.1
32	1467.7	1331.2
33	1507.4	1369.1
34	1547.8	1407.7
35	1588.9	1447.1
36	1630.8	1487.3
37	1673.4	1528.2
38	1716.8	1570.0
39	1761.0	1612.6
40	1805.9	1656.0
41	1851.7	1700.3
42	1898.2	1745.4
43	1945.6	1791.4
44	1993.8	1838.3
45	2042.8	1886.1
46	2092.6	1934.8
47	2143.3	1984.5
48	2194.9	2035.1
49	2247.3	2086.6
50	2300.6	2139.2
51	2354.7	2192.7
52	2409.8	2247.3
53	2465.8	2302.9
54	2522.7	2359.6
55	2580.5	2417.3
56	2639.2	2476.2
57	2698.9	2536.2
58	2759.6	2597.4
59	2821.2	2659.8
60	2883.8	2723.4
61	2947.4	2788.3
62	3012.0	2854.5
63	3077.5	2922.0
64	3144.1	2991.0
65	3211.7	3061.4

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R-452A PT Chart

°F / psig · Safety class A1 · Zeotropic blend

refrigerantptchart.com

°F	Liquid	Vapor
-40	5.7	2.4
-39	6.2	2.8
-38	6.7	3.3
-37	7.2	3.7
-36	7.8	4.2
-35	8.3	4.7
-34	8.9	5.2
-33	9.5	5.7
-32	10.1	6.2
-31	10.7	6.8
-30	11.3	7.3
-29	11.9	7.8
-28	12.6	8.4
-27	13.2	9.0
-26	13.9	9.5
-25	14.6	10.1
-24	15.2	10.7
-23	15.9	11.3
-22	16.7	12.0
-21	17.4	12.6
-20	18.1	13.2
-19	18.9	13.9
-18	19.6	14.6
-17	20.4	15.3
-16	21.2	16.0
-15	22.0	16.7
-14	22.8	17.4
-13	23.6	18.1
-12	24.5	18.9
-11	25.3	19.6
-10	26.2	20.4
-9	27.1	21.2
-8	28.0	22.0
-7	28.9	22.8
-6	29.8	23.6
-5	30.8	24.5
-4	31.7	25.3
-3	32.7	26.2
-2	33.7	27.1
-1	34.7	28.0
0	35.7	28.9
1	36.8	29.8
2	37.8	30.7
3	38.9	31.7
4	40.0	32.7
5	41.1	33.7
6	42.2	34.7
7	43.4	35.7

°F	Liquid	Vapor
8	44.5	36.7
9	45.7	37.8
10	46.9	38.8
11	48.1	39.9
12	49.3	41.0
13	50.6	42.2
14	51.8	43.3
15	53.1	44.4
16	54.4	45.6
17	55.7	46.8
18	57.1	48.0
19	58.4	49.2
20	59.8	50.5
21	61.2	51.7
22	62.6	53.0
23	64.0	54.3
24	65.5	55.6
25	66.9	57.0
26	68.4	58.3
27	70.0	59.7
28	71.5	61.1
29	73.0	62.5
30	74.6	64.0
31	76.2	65.4
32	77.8	66.9
33	79.5	68.4
34	81.1	69.9
35	82.8	71.4
36	84.5	73.0
37	86.2	74.6
38	88.0	76.2
39	89.8	77.8
40	91.6	79.4
41	93.4	81.1
42	95.2	82.8
43	97.1	84.5
44	99.0	86.2
45	100.9	88.0
46	102.8	89.8
47	104.8	91.6
48	106.7	93.4
49	108.7	95.3
50	110.8	97.1
51	112.8	99.0
52	114.9	101.0
53	117.0	102.9
54	119.1	104.9
55	121.3	106.9

°F	Liquid	Vapor
56	123.5	108.9
57	125.7	111.0
58	127.9	113.0
59	130.2	115.1
60	132.4	117.3
61	134.8	119.4
62	137.1	121.6
63	139.5	123.8
64	141.8	126.0
65	144.3	128.3
66	146.7	130.6
67	149.2	132.9
68	151.7	135.2
69	154.2	137.6
70	156.8	140.0
71	159.4	142.4
72	162.0	144.9
73	164.6	147.4
74	167.3	149.9
75	170.0	152.4
76	172.7	155.0
77	175.5	157.6
78	178.3	160.2
79	181.1	162.9
80	183.9	165.6
81	186.8	168.3
82	189.7	171.1
83	192.7	173.9
84	195.6	176.7
85	198.6	179.5
86	201.7	182.4
87	204.8	185.3
88	207.9	188.3
89	211.0	191.3
90	214.1	194.3
91	217.3	197.3
92	220.6	200.4
93	223.8	203.5
94	227.1	206.7
95	230.5	209.9
96	233.8	213.1
97	237.2	216.4
98	240.6	219.7
99	244.1	223.0
100	247.6	226.4
101	251.1	229.8
102	254.7	233.2
103	258.3	236.7

°F	Liquid	Vapor
104	261.9	240.2
105	265.6	243.7
106	269.3	247.3
107	273.1	251.0
108	276.8	254.6
109	280.6	258.3
110	284.5	262.1
111	288.4	265.9
112	292.3	269.7
113	296.3	273.6
114	300.3	277.5
115	304.3	281.4
116	308.4	285.4
117	312.5	289.4
118	316.7	293.5
119	320.9	297.6
120	325.1	301.8
121	329.4	306.0
122	333.7	310.3
123	338.0	314.6
124	342.4	318.9
125	346.8	323.3
126	351.3	327.7
127	355.8	332.2
128	360.4	336.7
129	365.0	341.3
130	369.6	345.9
131	374.3	350.6
132	379.0	355.3
133	383.7	360.1
134	388.5	364.9
135	393.4	369.8
136	398.3	374.7
137	403.2	379.7
138	408.2	384.8
139	413.2	389.8
140	418.3	395.0
141	423.4	400.2
142	428.5	405.5
143	433.7	410.8
144	438.9	416.2
145	444.2	421.6
146	449.6	427.1
147	454.9	432.7
148	460.4	438.3
149	465.8	444.0
150	471.3	449.8

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

R-452A PT Chart

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

refrigerantptchart.com

°C	Liquid	Vapor
-40	39.0	16.4
-39	45.5	22.0
-38	52.2	27.8
-37	59.1	33.8
-36	66.3	40.1
-35	73.7	46.6
-34	81.4	53.3
-33	89.4	60.2
-32	97.6	67.4
-31	106.1	74.8
-30	114.8	82.5
-29	123.9	90.5
-28	133.2	98.7
-27	142.8	107.1
-26	152.7	115.9
-25	162.9	124.9
-24	173.5	134.2
-23	184.3	143.8
-22	195.5	153.8
-21	207.0	164.0
-20	218.9	174.5
-19	231.1	185.4
-18	243.6	196.5
-17	256.5	208.1
-16	269.8	219.9
-15	283.4	232.1
-14	297.4	244.7
-13	311.8	257.6
-12	326.6	270.8
-11	341.7	284.5
-10	357.3	298.5
-9	373.3	312.9
-8	389.7	327.7
-7	406.5	342.9
-6	423.7	358.5
-5	441.4	374.5

°C	Liquid	Vapor
-4	459.5	391.0
-3	478.1	407.9
-2	497.1	425.2
-1	516.6	442.9
0	536.6	461.1
1	557.0	479.8
2	578.0	498.9
3	599.4	518.6
4	621.3	538.6
5	643.7	559.2
6	666.7	580.3
7	690.1	601.9
8	714.1	624.0
9	738.6	646.6
10	763.7	669.8
11	789.3	693.5
12	815.5	717.7
13	842.2	742.5
14	869.5	767.8
15	897.4	793.8
16	925.9	820.3
17	955.0	847.4
18	984.6	875.1
19	1014.9	903.4
20	1045.8	932.3
21	1077.4	961.9
22	1109.5	992.1
23	1142.3	1022.9
24	1175.8	1054.4
25	1209.9	1086.6
26	1244.7	1119.4
27	1280.1	1153.0
28	1316.2	1187.2
29	1353.1	1222.1
30	1390.6	1257.8
31	1428.8	1294.1

°C	Liquid	Vapor
32	1467.7	1331.2
33	1507.4	1369.1
34	1547.8	1407.7
35	1588.9	1447.1
36	1630.8	1487.3
37	1673.4	1528.2
38	1716.8	1570.0
39	1761.0	1612.6
40	1805.9	1656.0
41	1851.7	1700.3
42	1898.2	1745.4
43	1945.6	1791.4
44	1993.8	1838.3
45	2042.8	1886.1
46	2092.6	1934.8
47	2143.3	1984.5
48	2194.9	2035.1
49	2247.3	2086.6
50	2300.6	2139.2
51	2354.7	2192.7
52	2409.8	2247.3
53	2465.8	2302.9
54	2522.7	2359.6
55	2580.5	2417.3
56	2639.2	2476.2
57	2698.9	2536.2
58	2759.6	2597.4
59	2821.2	2659.8
60	2883.8	2723.4
61	2947.4	2788.3
62	3012.0	2854.5
63	3077.5	2922.0
64	3144.1	2991.0
65	3211.7	3061.4

Liquid = bubble (use for subcooling). Vapor = dew (use for superheat). 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-452A chart

This R-452A 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.

Source: manufacturer and supplier charts (Chemours, Arkema, A-Gas). Reference only: always verify with the manufacturer’s data and your gauges.

FAQ

What is the R-452A pressure at 40 °F?

79.4 psig vapor (dew) and 91.6 psig liquid (bubble) at saturation, from the table above.

What is the R-452A pressure at 100 °F?

226.4 psig vapor (dew) and 247.6 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-452A has 7.02 °F of glide at a 40 °F evaporator, so the two columns differ.

R-452A PT Chart

PT lookup

R-452A pressure temperature table

How to use

About this R-452A chart

FAQ

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