R-449A PT Chart

R-449A saturation pressure, −40 to 150 °F−40 to 65 °C. Used in commercial refrigeration (an R-404A replacement).

How to use ↓

Safety class A1Zeotropic blendGlide 9.42 °F at 40 °F evapGlide 5.23 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-449A 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-449A saturation pressure by temperature, °F and psig (vacuum in inches of mercury)
°F	Liquid bubble, psig	Vapor dew, psig
-40	4.5	0.0
-39	5.0	0.4
-38	5.5	0.8
-37	6.0	1.2
-36	6.6	1.7
-35	7.1	2.1
-34	7.6	2.6
-33	8.2	3.0
-32	8.8	3.5
-31	9.3	4.0
-30	9.9	4.4
-29	10.5	4.9
-28	11.1	5.4
-27	11.7	6.0
-26	12.4	6.5
-25	13.0	7.0
-24	13.7	7.6
-23	14.3	8.1
-22	15.0	8.7
-21	15.7	9.3
-20	16.4	9.9
-19	17.1	10.5
-18	17.9	11.1
-17	18.6	11.7
-16	19.4	12.3
-15	20.1	13.0
-14	20.9	13.7
-13	21.7	14.3
-12	22.5	15.0
-11	23.3	15.7
-10	24.2	16.4
-9	25.0	17.1
-8	25.9	17.9
-7	26.8	18.6
-6	27.7	19.4
-5	28.6	20.2
-4	29.5	21.0
-3	30.4	21.8
-2	31.4	22.6
-1	32.4	23.4
0	33.4	24.3
1	34.4	25.1
2	35.4	26.0
3	36.4	26.9
4	37.5	27.8
5	38.5	28.7
6	39.6	29.7
7	40.7	30.6
8	41.8	31.6
9	42.9	32.6
10	44.1	33.6
11	45.3	34.6
12	46.4	35.6
13	47.6	36.6
14	48.9	37.7
15	50.1	38.8
16	51.4	39.9
17	52.6	41.0
18	53.9	42.1
19	55.2	43.3
20	56.6	44.5
21	57.9	45.6
22	59.3	46.8
23	60.7	48.1
24	62.1	49.3
25	63.5	50.6
26	64.9	51.8
27	66.4	53.1
28	67.9	54.5
29	69.4	55.8
30	70.9	57.2
31	72.5	58.5
32	74.0	59.9
33	75.6	61.3
34	77.3	62.8
35	78.9	64.2
36	80.5	65.7
37	82.2	67.2
38	83.9	68.7
39	85.6	70.3
40	87.4	71.8
41	89.1	73.4
42	90.9	75.0
43	92.7	76.6
44	94.6	78.3
45	96.4	80.0
46	98.3	81.7
47	100.2	83.4
48	102.1	85.1
49	104.1	86.9
50	106.1	88.7
51	108.1	90.5
52	110.1	92.3
53	112.2	94.2
54	114.2	96.1
55	116.3	98.0
56	118.5	99.9
57	120.6	101.9
58	122.8	103.8
59	125.0	105.9
60	127.2	107.9
61	129.5	110.0
62	131.8	112.0
63	134.1	114.2
64	136.4	116.3
65	138.8	118.5
66	141.2	120.7
67	143.6	122.9
68	146.0	125.1
69	148.5	127.4
70	151.0	129.7
71	153.5	132.0
72	156.1	134.4
73	158.7	136.8
74	161.3	139.2
75	163.9	141.7
76	166.6	144.1
77	169.3	146.6
78	172.0	149.2
79	174.8	151.7
80	177.6	154.3
81	180.4	157.0
82	183.3	159.6
83	186.1	162.3
84	189.1	165.0
85	192.0	167.8
86	195.0	170.6
87	198.0	173.4
88	201.0	176.2
89	204.1	179.1
90	207.2	182.0
91	210.3	185.0
92	213.5	188.0
93	216.7	191.0
94	219.9	194.0
95	223.2	197.1
96	226.5	200.2
97	229.9	203.4
98	233.2	206.6
99	236.6	209.8
100	240.1	213.1
101	243.5	216.4
102	247.0	219.7
103	250.6	223.1
104	254.2	226.5
105	257.8	229.9
106	261.4	233.4
107	265.1	236.9
108	268.8	240.5
109	272.6	244.1
110	276.4	247.7
111	280.2	251.4
112	284.1	255.1
113	288.0	258.9
114	291.9	262.7
115	295.9	266.5
116	299.9	270.4
117	304.0	274.3
118	308.0	278.2
119	312.2	282.3
120	316.3	286.3
121	320.6	290.4
122	324.8	294.5
123	329.1	298.7
124	333.4	302.9
125	337.8	307.2
126	342.2	311.5
127	346.6	315.8
128	351.1	320.2
129	355.7	324.7
130	360.2	329.2
131	364.8	333.7
132	369.5	338.3
133	374.2	342.9
134	378.9	347.6
135	383.7	352.4
136	388.5	357.1
137	393.4	362.0
138	398.3	366.9
139	403.3	371.8
140	408.3	376.8
141	413.3	381.8
142	418.4	386.9
143	423.5	392.1
144	428.7	397.3
145	433.9	402.5
146	439.2	407.9
147	444.5	413.2
148	449.9	418.7
149	455.3	424.1
150	460.7	429.7

R-449A saturation pressure by temperature, °C and kPa (negative = vacuum)
°C	Liquid bubble, kPa	Vapor dew, kPa
-40	31.2	0.0
-39	37.4	5.1
-38	43.8	10.3
-37	50.4	15.7
-36	57.2	21.4
-35	64.3	27.3
-34	71.7	33.3
-33	79.3	39.6
-32	87.1	46.2
-31	95.2	52.9
-30	103.6	59.9
-29	112.3	67.2
-28	121.2	74.7
-27	130.4	82.5
-26	139.9	90.5
-25	149.7	98.8
-24	159.8	107.4
-23	170.3	116.2
-22	181.0	125.4
-21	192.1	134.8
-20	203.5	144.6
-19	215.2	154.6
-18	227.3	165.0
-17	239.7	175.7
-16	252.4	186.7
-15	265.6	198.0
-14	279.1	209.7
-13	293.0	221.7
-12	307.2	234.1
-11	321.9	246.9
-10	336.9	260.0
-9	352.4	273.5
-8	368.2	287.4
-7	384.5	301.7
-6	401.2	316.4
-5	418.3	331.4
-4	435.8	346.9
-3	453.8	362.8
-2	472.3	379.2
-1	491.2	395.9
0	510.5	413.2
1	530.4	430.8
2	550.7	448.9
3	571.5	467.5
4	592.8	486.6
5	614.6	506.1
6	636.9	526.2
7	659.7	546.7
8	683.1	567.7
9	707.0	589.3
10	731.4	611.4
11	756.3	634.0
12	781.8	657.1
13	807.9	680.8
14	834.5	705.0
15	861.8	729.8
16	889.6	755.2
17	917.9	781.2
18	946.9	807.8
19	976.5	834.9
20	1006.7	862.7
21	1037.6	891.1
22	1069.0	920.1
23	1101.1	949.8
24	1133.9	980.1
25	1167.2	1011.1
26	1201.3	1042.7
27	1236.0	1075.0
28	1271.5	1108.0
29	1307.5	1141.7
30	1344.3	1176.1
31	1381.8	1211.2
32	1420.0	1247.1
33	1459.0	1283.7
34	1498.6	1321.0
35	1539.0	1359.1
36	1580.2	1398.0
37	1622.1	1437.7
38	1664.7	1478.2
39	1708.1	1519.4
40	1752.4	1561.5
41	1797.4	1604.5
42	1843.2	1648.2
43	1889.8	1692.9
44	1937.2	1738.4
45	1985.4	1784.8
46	2034.5	1832.1
47	2084.5	1880.3
48	2135.3	1929.5
49	2186.9	1979.6
50	2239.4	2030.6
51	2292.8	2082.6
52	2347.1	2135.7
53	2402.4	2189.7
54	2458.5	2244.8
55	2515.5	2300.9
56	2573.5	2358.1
57	2632.4	2416.3
58	2692.3	2475.7
59	2753.1	2536.2
60	2814.9	2597.9
61	2877.7	2660.7
62	2941.5	2724.7
63	3006.3	2790.0
64	3072.1	2856.6
65	3138.9	2924.4

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R-449A PT Chart

°F / psig · Safety class A1 · Zeotropic blend

refrigerantptchart.com

°F	Liquid	Vapor
-40	4.5	0.0
-39	5.0	0.4
-38	5.5	0.8
-37	6.0	1.2
-36	6.6	1.7
-35	7.1	2.1
-34	7.6	2.6
-33	8.2	3.0
-32	8.8	3.5
-31	9.3	4.0
-30	9.9	4.4
-29	10.5	4.9
-28	11.1	5.4
-27	11.7	6.0
-26	12.4	6.5
-25	13.0	7.0
-24	13.7	7.6
-23	14.3	8.1
-22	15.0	8.7
-21	15.7	9.3
-20	16.4	9.9
-19	17.1	10.5
-18	17.9	11.1
-17	18.6	11.7
-16	19.4	12.3
-15	20.1	13.0
-14	20.9	13.7
-13	21.7	14.3
-12	22.5	15.0
-11	23.3	15.7
-10	24.2	16.4
-9	25.0	17.1
-8	25.9	17.9
-7	26.8	18.6
-6	27.7	19.4
-5	28.6	20.2
-4	29.5	21.0
-3	30.4	21.8
-2	31.4	22.6
-1	32.4	23.4
0	33.4	24.3
1	34.4	25.1
2	35.4	26.0
3	36.4	26.9
4	37.5	27.8
5	38.5	28.7
6	39.6	29.7
7	40.7	30.6

°F	Liquid	Vapor
8	41.8	31.6
9	42.9	32.6
10	44.1	33.6
11	45.3	34.6
12	46.4	35.6
13	47.6	36.6
14	48.9	37.7
15	50.1	38.8
16	51.4	39.9
17	52.6	41.0
18	53.9	42.1
19	55.2	43.3
20	56.6	44.5
21	57.9	45.6
22	59.3	46.8
23	60.7	48.1
24	62.1	49.3
25	63.5	50.6
26	64.9	51.8
27	66.4	53.1
28	67.9	54.5
29	69.4	55.8
30	70.9	57.2
31	72.5	58.5
32	74.0	59.9
33	75.6	61.3
34	77.3	62.8
35	78.9	64.2
36	80.5	65.7
37	82.2	67.2
38	83.9	68.7
39	85.6	70.3
40	87.4	71.8
41	89.1	73.4
42	90.9	75.0
43	92.7	76.6
44	94.6	78.3
45	96.4	80.0
46	98.3	81.7
47	100.2	83.4
48	102.1	85.1
49	104.1	86.9
50	106.1	88.7
51	108.1	90.5
52	110.1	92.3
53	112.2	94.2
54	114.2	96.1
55	116.3	98.0

°F	Liquid	Vapor
56	118.5	99.9
57	120.6	101.9
58	122.8	103.8
59	125.0	105.9
60	127.2	107.9
61	129.5	110.0
62	131.8	112.0
63	134.1	114.2
64	136.4	116.3
65	138.8	118.5
66	141.2	120.7
67	143.6	122.9
68	146.0	125.1
69	148.5	127.4
70	151.0	129.7
71	153.5	132.0
72	156.1	134.4
73	158.7	136.8
74	161.3	139.2
75	163.9	141.7
76	166.6	144.1
77	169.3	146.6
78	172.0	149.2
79	174.8	151.7
80	177.6	154.3
81	180.4	157.0
82	183.3	159.6
83	186.1	162.3
84	189.1	165.0
85	192.0	167.8
86	195.0	170.6
87	198.0	173.4
88	201.0	176.2
89	204.1	179.1
90	207.2	182.0
91	210.3	185.0
92	213.5	188.0
93	216.7	191.0
94	219.9	194.0
95	223.2	197.1
96	226.5	200.2
97	229.9	203.4
98	233.2	206.6
99	236.6	209.8
100	240.1	213.1
101	243.5	216.4
102	247.0	219.7
103	250.6	223.1

°F	Liquid	Vapor
104	254.2	226.5
105	257.8	229.9
106	261.4	233.4
107	265.1	236.9
108	268.8	240.5
109	272.6	244.1
110	276.4	247.7
111	280.2	251.4
112	284.1	255.1
113	288.0	258.9
114	291.9	262.7
115	295.9	266.5
116	299.9	270.4
117	304.0	274.3
118	308.0	278.2
119	312.2	282.3
120	316.3	286.3
121	320.6	290.4
122	324.8	294.5
123	329.1	298.7
124	333.4	302.9
125	337.8	307.2
126	342.2	311.5
127	346.6	315.8
128	351.1	320.2
129	355.7	324.7
130	360.2	329.2
131	364.8	333.7
132	369.5	338.3
133	374.2	342.9
134	378.9	347.6
135	383.7	352.4
136	388.5	357.1
137	393.4	362.0
138	398.3	366.9
139	403.3	371.8
140	408.3	376.8
141	413.3	381.8
142	418.4	386.9
143	423.5	392.1
144	428.7	397.3
145	433.9	402.5
146	439.2	407.9
147	444.5	413.2
148	449.9	418.7
149	455.3	424.1
150	460.7	429.7

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-449A PT Chart

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

refrigerantptchart.com

°C	Liquid	Vapor
-40	31.2	0.0
-39	37.4	5.1
-38	43.8	10.3
-37	50.4	15.7
-36	57.2	21.4
-35	64.3	27.3
-34	71.7	33.3
-33	79.3	39.6
-32	87.1	46.2
-31	95.2	52.9
-30	103.6	59.9
-29	112.3	67.2
-28	121.2	74.7
-27	130.4	82.5
-26	139.9	90.5
-25	149.7	98.8
-24	159.8	107.4
-23	170.3	116.2
-22	181.0	125.4
-21	192.1	134.8
-20	203.5	144.6
-19	215.2	154.6
-18	227.3	165.0
-17	239.7	175.7
-16	252.4	186.7
-15	265.6	198.0
-14	279.1	209.7
-13	293.0	221.7
-12	307.2	234.1
-11	321.9	246.9
-10	336.9	260.0
-9	352.4	273.5
-8	368.2	287.4
-7	384.5	301.7
-6	401.2	316.4
-5	418.3	331.4

°C	Liquid	Vapor
-4	435.8	346.9
-3	453.8	362.8
-2	472.3	379.2
-1	491.2	395.9
0	510.5	413.2
1	530.4	430.8
2	550.7	448.9
3	571.5	467.5
4	592.8	486.6
5	614.6	506.1
6	636.9	526.2
7	659.7	546.7
8	683.1	567.7
9	707.0	589.3
10	731.4	611.4
11	756.3	634.0
12	781.8	657.1
13	807.9	680.8
14	834.5	705.0
15	861.8	729.8
16	889.6	755.2
17	917.9	781.2
18	946.9	807.8
19	976.5	834.9
20	1006.7	862.7
21	1037.6	891.1
22	1069.0	920.1
23	1101.1	949.8
24	1133.9	980.1
25	1167.2	1011.1
26	1201.3	1042.7
27	1236.0	1075.0
28	1271.5	1108.0
29	1307.5	1141.7
30	1344.3	1176.1
31	1381.8	1211.2

°C	Liquid	Vapor
32	1420.0	1247.1
33	1459.0	1283.7
34	1498.6	1321.0
35	1539.0	1359.1
36	1580.2	1398.0
37	1622.1	1437.7
38	1664.7	1478.2
39	1708.1	1519.4
40	1752.4	1561.5
41	1797.4	1604.5
42	1843.2	1648.2
43	1889.8	1692.9
44	1937.2	1738.4
45	1985.4	1784.8
46	2034.5	1832.1
47	2084.5	1880.3
48	2135.3	1929.5
49	2186.9	1979.6
50	2239.4	2030.6
51	2292.8	2082.6
52	2347.1	2135.7
53	2402.4	2189.7
54	2458.5	2244.8
55	2515.5	2300.9
56	2573.5	2358.1
57	2632.4	2416.3
58	2692.3	2475.7
59	2753.1	2536.2
60	2814.9	2597.9
61	2877.7	2660.7
62	2941.5	2724.7
63	3006.3	2790.0
64	3072.1	2856.6
65	3138.9	2924.4

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-449A chart

This R-449A 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-449A pressure at 40 °F?

71.8 psig vapor (dew) and 87.4 psig liquid (bubble) at saturation, from the table above.

What is the R-449A pressure at 100 °F?

213.1 psig vapor (dew) and 240.1 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-449A has 9.42 °F of glide at a 40 °F evaporator, so the two columns differ.

R-449A PT Chart

PT lookup

R-449A pressure temperature table

How to use

About this R-449A chart

FAQ

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