R-454C PT Chart

R-454C saturation pressure, −40 to 140 °F−40 to 60 °C. Used in low-GWP commercial refrigeration and heat pumps.

How to use ↓

Safety class A2LZeotropic blendGlide 13.95 °F at 40 °F evapGlide 7.75 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-454C 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.

The table covers −40 to 140 °F−40 to 60 °C only: the published manufacturer data stops there, and the table is not extrapolated past it.

R-454C saturation pressure by temperature, °F and psig (vacuum in inches of mercury)
°F	Liquid bubble, psig	Vapor dew, psig
-40	4.3	3.0 inHg
-39	4.8	2.3 inHg
-38	5.2	1.6 inHg
-37	5.7	0.8 inHg
-36	6.2	0.0
-35	6.8	0.4
-34	7.3	0.8
-33	7.8	1.2
-32	8.4	1.6
-31	8.9	2.0
-30	9.5	2.4
-29	10.0	2.9
-28	10.6	3.3
-27	11.2	3.8
-26	11.8	4.2
-25	12.4	4.7
-24	13.1	5.2
-23	13.7	5.7
-22	14.4	6.2
-21	15.0	6.7
-20	15.7	7.2
-19	16.4	7.7
-18	17.1	8.3
-17	17.8	8.8
-16	18.5	9.4
-15	19.2	10.0
-14	20.0	10.5
-13	20.7	11.1
-12	21.5	11.7
-11	22.3	12.4
-10	23.1	13.0
-9	23.9	13.6
-8	24.7	14.3
-7	25.6	14.9
-6	26.4	15.6
-5	27.3	16.3
-4	28.1	17.0
-3	29.0	17.7
-2	29.9	18.4
-1	30.8	19.1
0	31.8	19.9
1	32.7	20.6
2	33.7	21.4
3	34.7	22.2
4	35.7	23.0
5	36.7	23.8
6	37.7	24.6
7	38.7	25.4
8	39.8	26.3
9	40.8	27.1
10	41.9	28.0
11	43.0	28.9
12	44.1	29.8
13	45.2	30.7
14	46.4	31.7
15	47.6	32.6
16	48.7	33.6
17	49.9	34.6
18	51.1	35.5
19	52.4	36.6
20	53.6	37.6
21	54.9	38.6
22	56.2	39.7
23	57.5	40.7
24	58.8	41.8
25	60.1	42.9
26	61.5	44.0
27	62.8	45.2
28	64.2	46.3
29	65.6	47.5
30	67.1	48.7
31	68.5	49.9
32	70.0	51.1
33	71.5	52.4
34	73.0	53.6
35	74.5	54.9
36	76.0	56.2
37	77.6	57.5
38	79.2	58.8
39	80.8	60.2
40	82.4	61.5
41	84.0	62.9
42	85.7	64.3
43	87.4	65.7
44	89.1	67.2
45	90.8	68.7
46	92.5	70.1
47	94.3	71.6
48	96.1	73.2
49	97.9	74.7
50	99.7	76.3
51	101.6	77.9
52	103.5	79.5
53	105.4	81.1
54	107.3	82.7
55	109.2	84.4
56	111.2	86.1
57	113.2	87.8
58	115.2	89.5
59	117.2	91.3
60	119.3	93.1
61	121.4	94.9
62	123.5	96.7
63	125.6	98.6
64	127.7	100.4
65	129.9	102.3
66	132.1	104.2
67	134.3	106.2
68	136.6	108.2
69	138.9	110.2
70	141.2	112.2
71	143.5	114.2
72	145.8	116.3
73	148.2	118.4
74	150.6	120.5
75	153.0	122.6
76	155.5	124.8
77	158.0	127.0
78	160.5	129.2
79	163.0	131.5
80	165.6	133.7
81	168.2	136.0
82	170.8	138.4
83	173.4	140.7
84	176.1	143.1
85	178.8	145.5
86	181.5	147.9
87	184.2	150.4
88	187.0	152.9
89	189.8	155.4
90	192.6	158.0
91	195.5	160.6
92	198.4	163.2
93	201.3	165.8
94	204.3	168.5
95	207.2	171.2
96	210.2	173.9
97	213.3	176.7
98	216.3	179.5
99	219.4	182.3
100	222.5	185.2
101	225.7	188.0
102	228.9	191.0
103	232.1	193.9
104	235.3	196.9
105	238.6	199.9
106	241.9	203.0
107	245.3	206.1
108	248.6	209.2
109	252.0	212.3
110	255.5	215.5
111	258.9	218.7
112	262.4	222.0
113	265.9	225.3
114	269.5	228.6
115	273.1	232.0
116	276.7	235.4
117	280.4	238.8
118	284.1	242.3
119	287.8	245.8
120	291.6	249.4
121	295.3	252.9
122	299.2	256.6
123	303.0	260.2
124	306.9	263.9
125	310.8	267.7
126	314.8	271.5
127	318.8	275.3
128	322.8	279.1
129	326.9	283.0
130	331.0	287.0
131	335.1	291.0
132	339.3	295.0
133	343.5	299.1
134	347.7	303.2
135	352.0	307.3
136	356.3	311.5
137	360.7	315.8
138	365.1	320.1
139	369.5	324.4
140	373.9	328.8

R-454C saturation pressure by temperature, °C and kPa (negative = vacuum)
°C	Liquid bubble, kPa	Vapor dew, kPa
-40	29.5	-10.3
-39	35.5	-5.8
-38	41.6	-1.2
-37	48.0	3.6
-36	54.6	8.6
-35	61.4	13.8
-34	68.5	19.2
-33	75.7	24.7
-32	83.3	30.5
-31	91.0	36.5
-30	99.0	42.6
-29	107.3	49.0
-28	115.8	55.6
-27	124.6	62.5
-26	133.7	69.5
-25	143.0	76.8
-24	152.6	84.4
-23	162.5	92.1
-22	172.7	100.2
-21	183.2	108.5
-20	194.0	117.0
-19	205.1	125.9
-18	216.5	135.0
-17	228.3	144.3
-16	240.3	154.0
-15	252.7	164.0
-14	265.5	174.2
-13	278.5	184.8
-12	292.0	195.6
-11	305.7	206.8
-10	319.9	218.3
-9	334.4	230.2
-8	349.3	242.3
-7	364.5	254.8
-6	380.2	267.7
-5	396.2	280.9
-4	412.6	294.4
-3	429.5	308.4
-2	446.7	322.7
-1	464.4	337.4
0	482.4	352.4
1	500.9	367.9
2	519.9	383.7
3	539.2	400.0
4	559.1	416.7
5	579.3	433.8
6	600.1	451.3
7	621.2	469.3
8	642.9	487.7
9	665.0	506.5
10	687.7	525.8
11	710.8	545.6
12	734.4	565.9
13	758.5	586.6
14	783.1	607.8
15	808.2	629.5
16	833.9	651.7
17	860.0	674.4
18	886.8	697.7
19	914.0	721.4
20	941.8	745.7
21	970.1	770.6
22	999.1	796.0
23	1028.5	821.9
24	1058.6	848.4
25	1089.2	875.5
26	1120.4	903.2
27	1152.2	931.5
28	1184.6	960.4
29	1217.6	989.9
30	1251.3	1020.0
31	1285.5	1050.8
32	1320.4	1082.1
33	1355.9	1114.2
34	1392.0	1146.9
35	1428.8	1180.3
36	1466.2	1214.3
37	1504.3	1249.1
38	1543.1	1284.5
39	1582.5	1320.7
40	1622.6	1357.6
41	1663.4	1395.2
42	1704.9	1433.6
43	1747.1	1472.7
44	1790.0	1512.6
45	1833.7	1553.3
46	1878.0	1594.8
47	1923.1	1637.1
48	1968.9	1680.2
49	2015.4	1724.2
50	2062.7	1769.0
51	2110.7	1814.6
52	2159.6	1861.2
53	2209.1	1908.6
54	2259.5	1956.9
55	2310.6	2006.2
56	2362.5	2056.4
57	2415.2	2107.6
58	2468.8	2159.7
59	2523.1	2212.8
60	2578.2	2267.0

Back to the lookup ↑

R-454C PT Chart

°F / psig · Safety class A2L · Zeotropic blend

refrigerantptchart.com

°F	Liquid	Vapor
-40	4.3	3.0"
-39	4.8	2.3"
-38	5.2	1.6"
-37	5.7	0.8"
-36	6.2	0.0
-35	6.8	0.4
-34	7.3	0.8
-33	7.8	1.2
-32	8.4	1.6
-31	8.9	2.0
-30	9.5	2.4
-29	10.0	2.9
-28	10.6	3.3
-27	11.2	3.8
-26	11.8	4.2
-25	12.4	4.7
-24	13.1	5.2
-23	13.7	5.7
-22	14.4	6.2
-21	15.0	6.7
-20	15.7	7.2
-19	16.4	7.7
-18	17.1	8.3
-17	17.8	8.8
-16	18.5	9.4
-15	19.2	10.0
-14	20.0	10.5
-13	20.7	11.1
-12	21.5	11.7
-11	22.3	12.4
-10	23.1	13.0
-9	23.9	13.6
-8	24.7	14.3
-7	25.6	14.9
-6	26.4	15.6
-5	27.3	16.3
-4	28.1	17.0
-3	29.0	17.7
-2	29.9	18.4
-1	30.8	19.1
0	31.8	19.9
1	32.7	20.6
2	33.7	21.4
3	34.7	22.2
4	35.7	23.0
5	36.7	23.8

°F	Liquid	Vapor
6	37.7	24.6
7	38.7	25.4
8	39.8	26.3
9	40.8	27.1
10	41.9	28.0
11	43.0	28.9
12	44.1	29.8
13	45.2	30.7
14	46.4	31.7
15	47.6	32.6
16	48.7	33.6
17	49.9	34.6
18	51.1	35.5
19	52.4	36.6
20	53.6	37.6
21	54.9	38.6
22	56.2	39.7
23	57.5	40.7
24	58.8	41.8
25	60.1	42.9
26	61.5	44.0
27	62.8	45.2
28	64.2	46.3
29	65.6	47.5
30	67.1	48.7
31	68.5	49.9
32	70.0	51.1
33	71.5	52.4
34	73.0	53.6
35	74.5	54.9
36	76.0	56.2
37	77.6	57.5
38	79.2	58.8
39	80.8	60.2
40	82.4	61.5
41	84.0	62.9
42	85.7	64.3
43	87.4	65.7
44	89.1	67.2
45	90.8	68.7
46	92.5	70.1
47	94.3	71.6
48	96.1	73.2
49	97.9	74.7
50	99.7	76.3
51	101.6	77.9

°F	Liquid	Vapor
52	103.5	79.5
53	105.4	81.1
54	107.3	82.7
55	109.2	84.4
56	111.2	86.1
57	113.2	87.8
58	115.2	89.5
59	117.2	91.3
60	119.3	93.1
61	121.4	94.9
62	123.5	96.7
63	125.6	98.6
64	127.7	100.4
65	129.9	102.3
66	132.1	104.2
67	134.3	106.2
68	136.6	108.2
69	138.9	110.2
70	141.2	112.2
71	143.5	114.2
72	145.8	116.3
73	148.2	118.4
74	150.6	120.5
75	153.0	122.6
76	155.5	124.8
77	158.0	127.0
78	160.5	129.2
79	163.0	131.5
80	165.6	133.7
81	168.2	136.0
82	170.8	138.4
83	173.4	140.7
84	176.1	143.1
85	178.8	145.5
86	181.5	147.9
87	184.2	150.4
88	187.0	152.9
89	189.8	155.4
90	192.6	158.0
91	195.5	160.6
92	198.4	163.2
93	201.3	165.8
94	204.3	168.5
95	207.2	171.2
96	210.2	173.9
97	213.3	176.7

°F	Liquid	Vapor
98	216.3	179.5
99	219.4	182.3
100	222.5	185.2
101	225.7	188.0
102	228.9	191.0
103	232.1	193.9
104	235.3	196.9
105	238.6	199.9
106	241.9	203.0
107	245.3	206.1
108	248.6	209.2
109	252.0	212.3
110	255.5	215.5
111	258.9	218.7
112	262.4	222.0
113	265.9	225.3
114	269.5	228.6
115	273.1	232.0
116	276.7	235.4
117	280.4	238.8
118	284.1	242.3
119	287.8	245.8
120	291.6	249.4
121	295.3	252.9
122	299.2	256.6
123	303.0	260.2
124	306.9	263.9
125	310.8	267.7
126	314.8	271.5
127	318.8	275.3
128	322.8	279.1
129	326.9	283.0
130	331.0	287.0
131	335.1	291.0
132	339.3	295.0
133	343.5	299.1
134	347.7	303.2
135	352.0	307.3
136	356.3	311.5
137	360.7	315.8
138	365.1	320.1
139	369.5	324.4
140	373.9	328.8

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-454C PT Chart

°C / kPa (gauge) · Safety class A2L · Zeotropic blend

refrigerantptchart.com

°C	Liquid	Vapor
-40	29.5	-10.3
-39	35.5	-5.8
-38	41.6	-1.2
-37	48.0	3.6
-36	54.6	8.6
-35	61.4	13.8
-34	68.5	19.2
-33	75.7	24.7
-32	83.3	30.5
-31	91.0	36.5
-30	99.0	42.6
-29	107.3	49.0
-28	115.8	55.6
-27	124.6	62.5
-26	133.7	69.5
-25	143.0	76.8
-24	152.6	84.4
-23	162.5	92.1
-22	172.7	100.2
-21	183.2	108.5
-20	194.0	117.0
-19	205.1	125.9
-18	216.5	135.0
-17	228.3	144.3
-16	240.3	154.0
-15	252.7	164.0
-14	265.5	174.2
-13	278.5	184.8
-12	292.0	195.6
-11	305.7	206.8
-10	319.9	218.3
-9	334.4	230.2
-8	349.3	242.3
-7	364.5	254.8

°C	Liquid	Vapor
-6	380.2	267.7
-5	396.2	280.9
-4	412.6	294.4
-3	429.5	308.4
-2	446.7	322.7
-1	464.4	337.4
0	482.4	352.4
1	500.9	367.9
2	519.9	383.7
3	539.2	400.0
4	559.1	416.7
5	579.3	433.8
6	600.1	451.3
7	621.2	469.3
8	642.9	487.7
9	665.0	506.5
10	687.7	525.8
11	710.8	545.6
12	734.4	565.9
13	758.5	586.6
14	783.1	607.8
15	808.2	629.5
16	833.9	651.7
17	860.0	674.4
18	886.8	697.7
19	914.0	721.4
20	941.8	745.7
21	970.1	770.6
22	999.1	796.0
23	1028.5	821.9
24	1058.6	848.4
25	1089.2	875.5
26	1120.4	903.2
27	1152.2	931.5

°C	Liquid	Vapor
28	1184.6	960.4
29	1217.6	989.9
30	1251.3	1020.0
31	1285.5	1050.8
32	1320.4	1082.1
33	1355.9	1114.2
34	1392.0	1146.9
35	1428.8	1180.3
36	1466.2	1214.3
37	1504.3	1249.1
38	1543.1	1284.5
39	1582.5	1320.7
40	1622.6	1357.6
41	1663.4	1395.2
42	1704.9	1433.6
43	1747.1	1472.7
44	1790.0	1512.6
45	1833.7	1553.3
46	1878.0	1594.8
47	1923.1	1637.1
48	1968.9	1680.2
49	2015.4	1724.2
50	2062.7	1769.0
51	2110.7	1814.6
52	2159.6	1861.2
53	2209.1	1908.6
54	2259.5	1956.9
55	2310.6	2006.2
56	2362.5	2056.4
57	2415.2	2107.6
58	2468.8	2159.7
59	2523.1	2212.8
60	2578.2	2267.0

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-454C chart

This R-454C 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 and supplier charts (Chemours, A-Gas). Reference only: always verify with the manufacturer’s data and your gauges.

FAQ

What is the R-454C pressure at 40 °F?

61.5 psig vapor (dew) and 82.4 psig liquid (bubble) at saturation, from the table above.

What is the R-454C pressure at 100 °F?

185.2 psig vapor (dew) and 222.5 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-454C has 13.95 °F of glide at a 40 °F evaporator, so the two columns differ.

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R-454C PT Chart

PT lookup

R-454C pressure temperature table

How to use

About this R-454C chart

FAQ

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