R-407A PT Chart

R-407A saturation pressure, −40 to 150 °F−40 to 65 °C. Used in medium and low temperature commercial refrigeration.

How to use ↓

Safety class A1Zeotropic blendGlide 9.98 °F at 40 °F evapGlide 5.55 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-407A 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-407A saturation pressure by temperature, °F and psig (vacuum in inches of mercury)
°F	Liquid bubble, psig	Vapor dew, psig
-40	3.9	2.0 inHg
-39	4.4	1.2 inHg
-38	4.9	0.4 inHg
-37	5.4	0.2
-36	5.9	0.6
-35	6.4	1.0
-34	7.0	1.5
-33	7.5	1.9
-32	8.1	2.3
-31	8.6	2.8
-30	9.2	3.3
-29	9.8	3.7
-28	10.4	4.2
-27	11.0	4.7
-26	11.6	5.2
-25	12.2	5.8
-24	12.9	6.3
-23	13.5	6.8
-22	14.2	7.4
-21	14.9	7.9
-20	15.6	8.5
-19	16.3	9.1
-18	17.0	9.7
-17	17.7	10.3
-16	18.5	10.9
-15	19.2	11.5
-14	20.0	12.2
-13	20.8	12.8
-12	21.6	13.5
-11	22.4	14.2
-10	23.2	14.9
-9	24.0	15.6
-8	24.9	16.3
-7	25.8	17.0
-6	26.6	17.8
-5	27.5	18.5
-4	28.4	19.3
-3	29.4	20.1
-2	30.3	20.9
-1	31.3	21.7
0	32.2	22.5
1	33.2	23.4
2	34.2	24.2
3	35.2	25.1
4	36.3	26.0
5	37.3	26.9
6	38.4	27.8
7	39.5	28.7
8	40.6	29.7
9	41.7	30.6
10	42.8	31.6
11	44.0	32.6
12	45.1	33.6
13	46.3	34.6
14	47.5	35.7
15	48.7	36.7
16	50.0	37.8
17	51.2	38.9
18	52.5	40.0
19	53.8	41.2
20	55.1	42.3
21	56.5	43.5
22	57.8	44.7
23	59.2	45.9
24	60.6	47.1
25	62.0	48.3
26	63.4	49.6
27	64.9	50.9
28	66.3	52.2
29	67.8	53.5
30	69.3	54.8
31	70.9	56.2
32	72.4	57.6
33	74.0	59.0
34	75.6	60.4
35	77.2	61.8
36	78.8	63.3
37	80.5	64.8
38	82.2	66.3
39	83.9	67.8
40	85.6	69.4
41	87.4	70.9
42	89.1	72.5
43	90.9	74.1
44	92.8	75.8
45	94.6	77.4
46	96.5	79.1
47	98.4	80.8
48	100.3	82.6
49	102.2	84.3
50	104.2	86.1
51	106.2	87.9
52	108.2	89.7
53	110.2	91.6
54	112.3	93.4
55	114.4	95.3
56	116.5	97.3
57	118.6	99.2
58	120.8	101.2
59	123.0	103.2
60	125.2	105.2
61	127.4	107.3
62	129.7	109.3
63	132.0	111.5
64	134.3	113.6
65	136.7	115.7
66	139.0	117.9
67	141.4	120.2
68	143.9	122.4
69	146.3	124.7
70	148.8	127.0
71	151.3	129.3
72	153.9	131.7
73	156.5	134.0
74	159.1	136.5
75	161.7	138.9
76	164.4	141.4
77	167.0	143.9
78	169.8	146.4
79	172.5	149.0
80	175.3	151.6
81	178.1	154.2
82	181.0	156.9
83	183.8	159.6
84	186.7	162.3
85	189.7	165.1
86	192.6	167.8
87	195.6	170.7
88	198.7	173.5
89	201.7	176.4
90	204.8	179.3
91	208.0	182.3
92	211.1	185.3
93	214.3	188.3
94	217.6	191.4
95	220.8	194.4
96	224.1	197.6
97	227.4	200.7
98	230.8	203.9
99	234.2	207.2
100	237.6	210.4
101	241.1	213.8
102	244.6	217.1
103	248.2	220.5
104	251.7	223.9
105	255.3	227.4
106	259.0	230.9
107	262.7	234.4
108	266.4	238.0
109	270.1	241.6
110	273.9	245.2
111	277.8	248.9
112	281.6	252.7
113	285.5	256.4
114	289.5	260.2
115	293.5	264.1
116	297.5	268.0
117	301.5	271.9
118	305.6	275.9
119	309.8	279.9
120	314.0	284.0
121	318.2	288.1
122	322.4	292.3
123	326.7	296.5
124	331.1	300.7
125	335.4	305.0
126	339.9	309.3
127	344.3	313.7
128	348.8	318.1
129	353.4	322.6
130	357.9	327.1
131	362.6	331.7
132	367.2	336.3
133	372.0	341.0
134	376.7	345.7
135	381.5	350.5
136	386.3	355.3
137	391.2	360.2
138	396.2	365.1
139	401.1	370.0
140	406.2	375.1
141	411.2	380.1
142	416.3	385.3
143	421.5	390.4
144	426.7	395.7
145	431.9	401.0
146	437.2	406.3
147	442.6	411.7
148	448.0	417.2
149	453.4	422.7
150	458.9	428.3

R-407A saturation pressure by temperature, °C and kPa (negative = vacuum)
°C	Liquid bubble, kPa	Vapor dew, kPa
-40	27.1	-6.8
-39	33.1	-2.0
-38	39.4	3.0
-37	45.8	8.2
-36	52.6	13.6
-35	59.5	19.3
-34	66.7	25.1
-33	74.1	31.2
-32	81.8	37.5
-31	89.8	44.0
-30	98.0	50.8
-29	106.5	57.8
-28	115.2	65.1
-27	124.3	72.6
-26	133.6	80.4
-25	143.3	88.4
-24	153.2	96.8
-23	163.5	105.4
-22	174.0	114.3
-21	184.9	123.5
-20	196.1	133.0
-19	207.7	142.8
-18	219.5	152.9
-17	231.8	163.3
-16	244.4	174.1
-15	257.3	185.2
-14	270.6	196.7
-13	284.3	208.5
-12	298.4	220.6
-11	312.8	233.2
-10	327.7	246.0
-9	342.9	259.3
-8	358.6	273.0
-7	374.6	287.0
-6	391.1	301.5
-5	408.1	316.3
-4	425.4	331.6
-3	443.2	347.3
-2	461.5	363.4
-1	480.2	380.0
0	499.3	397.0
1	519.0	414.5
2	539.1	432.4
3	559.7	450.8
4	580.8	469.7
5	602.4	489.1
6	624.5	508.9
7	647.2	529.3
8	670.3	550.2
9	694.0	571.6
10	718.3	593.5
11	743.0	616.0
12	768.4	639.0
13	794.2	662.6
14	820.7	686.7
15	847.8	711.4
16	875.4	736.7
17	903.6	762.6
18	932.4	789.1
19	961.9	816.2
20	991.9	843.9
21	1022.6	872.2
22	1053.9	901.2
23	1085.9	930.8
24	1118.5	961.1
25	1151.7	992.1
26	1185.7	1023.7
27	1220.3	1056.0
28	1255.6	1089.1
29	1291.6	1122.8
30	1328.2	1157.2
31	1365.6	1192.4
32	1403.8	1228.3
33	1442.6	1265.0
34	1482.2	1302.5
35	1522.5	1340.7
36	1563.6	1379.7
37	1605.4	1419.5
38	1648.1	1460.1
39	1691.4	1501.5
40	1735.6	1543.7
41	1780.6	1586.9
42	1826.4	1630.8
43	1873.0	1675.7
44	1920.5	1721.4
45	1968.8	1768.0
46	2017.9	1815.5
47	2067.9	1864.0
48	2118.7	1913.4
49	2170.4	1963.8
50	2223.1	2015.1
51	2276.6	2067.5
52	2331.0	2120.8
53	2386.3	2175.2
54	2442.6	2230.6
55	2499.8	2287.0
56	2558.0	2344.6
57	2617.1	2403.2
58	2677.2	2463.0
59	2738.3	2523.9
60	2800.4	2585.9
61	2863.5	2649.2
62	2927.6	2713.7
63	2992.7	2779.4
64	3058.9	2846.4
65	3126.1	2914.7

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R-407A PT Chart

°F / psig · Safety class A1 · Zeotropic blend

refrigerantptchart.com

°F	Liquid	Vapor
-40	3.9	2.0"
-39	4.4	1.2"
-38	4.9	0.4"
-37	5.4	0.2
-36	5.9	0.6
-35	6.4	1.0
-34	7.0	1.5
-33	7.5	1.9
-32	8.1	2.3
-31	8.6	2.8
-30	9.2	3.3
-29	9.8	3.7
-28	10.4	4.2
-27	11.0	4.7
-26	11.6	5.2
-25	12.2	5.8
-24	12.9	6.3
-23	13.5	6.8
-22	14.2	7.4
-21	14.9	7.9
-20	15.6	8.5
-19	16.3	9.1
-18	17.0	9.7
-17	17.7	10.3
-16	18.5	10.9
-15	19.2	11.5
-14	20.0	12.2
-13	20.8	12.8
-12	21.6	13.5
-11	22.4	14.2
-10	23.2	14.9
-9	24.0	15.6
-8	24.9	16.3
-7	25.8	17.0
-6	26.6	17.8
-5	27.5	18.5
-4	28.4	19.3
-3	29.4	20.1
-2	30.3	20.9
-1	31.3	21.7
0	32.2	22.5
1	33.2	23.4
2	34.2	24.2
3	35.2	25.1
4	36.3	26.0
5	37.3	26.9
6	38.4	27.8
7	39.5	28.7

°F	Liquid	Vapor
8	40.6	29.7
9	41.7	30.6
10	42.8	31.6
11	44.0	32.6
12	45.1	33.6
13	46.3	34.6
14	47.5	35.7
15	48.7	36.7
16	50.0	37.8
17	51.2	38.9
18	52.5	40.0
19	53.8	41.2
20	55.1	42.3
21	56.5	43.5
22	57.8	44.7
23	59.2	45.9
24	60.6	47.1
25	62.0	48.3
26	63.4	49.6
27	64.9	50.9
28	66.3	52.2
29	67.8	53.5
30	69.3	54.8
31	70.9	56.2
32	72.4	57.6
33	74.0	59.0
34	75.6	60.4
35	77.2	61.8
36	78.8	63.3
37	80.5	64.8
38	82.2	66.3
39	83.9	67.8
40	85.6	69.4
41	87.4	70.9
42	89.1	72.5
43	90.9	74.1
44	92.8	75.8
45	94.6	77.4
46	96.5	79.1
47	98.4	80.8
48	100.3	82.6
49	102.2	84.3
50	104.2	86.1
51	106.2	87.9
52	108.2	89.7
53	110.2	91.6
54	112.3	93.4
55	114.4	95.3

°F	Liquid	Vapor
56	116.5	97.3
57	118.6	99.2
58	120.8	101.2
59	123.0	103.2
60	125.2	105.2
61	127.4	107.3
62	129.7	109.3
63	132.0	111.5
64	134.3	113.6
65	136.7	115.7
66	139.0	117.9
67	141.4	120.2
68	143.9	122.4
69	146.3	124.7
70	148.8	127.0
71	151.3	129.3
72	153.9	131.7
73	156.5	134.0
74	159.1	136.5
75	161.7	138.9
76	164.4	141.4
77	167.0	143.9
78	169.8	146.4
79	172.5	149.0
80	175.3	151.6
81	178.1	154.2
82	181.0	156.9
83	183.8	159.6
84	186.7	162.3
85	189.7	165.1
86	192.6	167.8
87	195.6	170.7
88	198.7	173.5
89	201.7	176.4
90	204.8	179.3
91	208.0	182.3
92	211.1	185.3
93	214.3	188.3
94	217.6	191.4
95	220.8	194.4
96	224.1	197.6
97	227.4	200.7
98	230.8	203.9
99	234.2	207.2
100	237.6	210.4
101	241.1	213.8
102	244.6	217.1
103	248.2	220.5

°F	Liquid	Vapor
104	251.7	223.9
105	255.3	227.4
106	259.0	230.9
107	262.7	234.4
108	266.4	238.0
109	270.1	241.6
110	273.9	245.2
111	277.8	248.9
112	281.6	252.7
113	285.5	256.4
114	289.5	260.2
115	293.5	264.1
116	297.5	268.0
117	301.5	271.9
118	305.6	275.9
119	309.8	279.9
120	314.0	284.0
121	318.2	288.1
122	322.4	292.3
123	326.7	296.5
124	331.1	300.7
125	335.4	305.0
126	339.9	309.3
127	344.3	313.7
128	348.8	318.1
129	353.4	322.6
130	357.9	327.1
131	362.6	331.7
132	367.2	336.3
133	372.0	341.0
134	376.7	345.7
135	381.5	350.5
136	386.3	355.3
137	391.2	360.2
138	396.2	365.1
139	401.1	370.0
140	406.2	375.1
141	411.2	380.1
142	416.3	385.3
143	421.5	390.4
144	426.7	395.7
145	431.9	401.0
146	437.2	406.3
147	442.6	411.7
148	448.0	417.2
149	453.4	422.7
150	458.9	428.3

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-407A PT Chart

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

refrigerantptchart.com

°C	Liquid	Vapor
-40	27.1	-6.8
-39	33.1	-2.0
-38	39.4	3.0
-37	45.8	8.2
-36	52.6	13.6
-35	59.5	19.3
-34	66.7	25.1
-33	74.1	31.2
-32	81.8	37.5
-31	89.8	44.0
-30	98.0	50.8
-29	106.5	57.8
-28	115.2	65.1
-27	124.3	72.6
-26	133.6	80.4
-25	143.3	88.4
-24	153.2	96.8
-23	163.5	105.4
-22	174.0	114.3
-21	184.9	123.5
-20	196.1	133.0
-19	207.7	142.8
-18	219.5	152.9
-17	231.8	163.3
-16	244.4	174.1
-15	257.3	185.2
-14	270.6	196.7
-13	284.3	208.5
-12	298.4	220.6
-11	312.8	233.2
-10	327.7	246.0
-9	342.9	259.3
-8	358.6	273.0
-7	374.6	287.0
-6	391.1	301.5
-5	408.1	316.3

°C	Liquid	Vapor
-4	425.4	331.6
-3	443.2	347.3
-2	461.5	363.4
-1	480.2	380.0
0	499.3	397.0
1	519.0	414.5
2	539.1	432.4
3	559.7	450.8
4	580.8	469.7
5	602.4	489.1
6	624.5	508.9
7	647.2	529.3
8	670.3	550.2
9	694.0	571.6
10	718.3	593.5
11	743.0	616.0
12	768.4	639.0
13	794.2	662.6
14	820.7	686.7
15	847.8	711.4
16	875.4	736.7
17	903.6	762.6
18	932.4	789.1
19	961.9	816.2
20	991.9	843.9
21	1022.6	872.2
22	1053.9	901.2
23	1085.9	930.8
24	1118.5	961.1
25	1151.7	992.1
26	1185.7	1023.7
27	1220.3	1056.0
28	1255.6	1089.1
29	1291.6	1122.8
30	1328.2	1157.2
31	1365.6	1192.4

°C	Liquid	Vapor
32	1403.8	1228.3
33	1442.6	1265.0
34	1482.2	1302.5
35	1522.5	1340.7
36	1563.6	1379.7
37	1605.4	1419.5
38	1648.1	1460.1
39	1691.4	1501.5
40	1735.6	1543.7
41	1780.6	1586.9
42	1826.4	1630.8
43	1873.0	1675.7
44	1920.5	1721.4
45	1968.8	1768.0
46	2017.9	1815.5
47	2067.9	1864.0
48	2118.7	1913.4
49	2170.4	1963.8
50	2223.1	2015.1
51	2276.6	2067.5
52	2331.0	2120.8
53	2386.3	2175.2
54	2442.6	2230.6
55	2499.8	2287.0
56	2558.0	2344.6
57	2617.1	2403.2
58	2677.2	2463.0
59	2738.3	2523.9
60	2800.4	2585.9
61	2863.5	2649.2
62	2927.6	2713.7
63	2992.7	2779.4
64	3058.9	2846.4
65	3126.1	2914.7

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-407A chart

This R-407A 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, Arkema). Reference only: always verify with the manufacturer’s data and your gauges.

FAQ

What is the R-407A pressure at 40 °F?

69.4 psig vapor (dew) and 85.6 psig liquid (bubble) at saturation, from the table above.

What is the R-407A pressure at 100 °F?

210.4 psig vapor (dew) and 237.6 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-407A has 9.98 °F of glide at a 40 °F evaporator, so the two columns differ.

R-407A PT Chart

PT lookup

R-407A pressure temperature table

How to use

About this R-407A chart

FAQ

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