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Temperature Pressure Chart
Inches Hg displayed in red PSIG displayed in blue

Deg. F
R-717
134a
R-22
R-502
Deg. C
-75
-70
-65
-60
-55
23.2
21.9
20.4
18.6
16.6
24.7
23.8
22.6
21.5
20.0
18.5
16.6
14.4
11.9
9.1
15.0
12.6
9.9
6.9
3.6
-59
-57
-54
-51
-48
-50
-45
-40
-35
-30
14.3
11.7
8.7
5.4
1.6
18.5
16.6
14.7
12.3
9.8
6.0
2.6
0.6
2.7
5.0
.0
2.0
4.3
6.7
9.4
-46
-43
-40
-37
-34
-25
-20
-15
-10
-5
1.3
3.6
6.2
9.0
12.2
6.8
3.8
1.0
1.8
3.9
7.6
10.3
13.3
16.6
20.2
12.3
15.5
19.0
22.8
26.9
-31
-29
-26
-23
-20.0
0
15.7
6.3
24.1
31.2
-17.8
+5
10
15
20
25
19.6
23.8
28.2
33.5
39.0
8.8
11.6
14.7
18.0
21.7
28.3
33.0
37.9
43.3
49.1
36.0
41.1
46.6
52.4
58.7
-15
-12.2
-9.4
-6.7
-3.9
30
35
40
45
50
45.0
52.6
58.6
66.3
74.5
25.6
29.9
34.5
39.5
44.9
55.2
61.9
69.0
76.6
84.7
65.4
72.6
80.2
88.3
96.9
-1.1
+1.7
4.4
7.2
10
55
60
65
70
75
83.4
92.9
103.1
114.1
125.8
50.7
56.9
63.5
70.7
78.3
93.3
102.5
112.2
122.5
133.5
106.0
115.6
125.8
136.6
148.0
12.8
15.6
18.3
21.1
23.9
80
85
90
95
100
138.3
151.7
165.9
181.1
197.2
86.4
95.0
104.2
113.9
124.3
145.0
157.3
170.1
183.7
197.9
159.9
172.5
185.8
199.7
214.4
26.7
29.4
32.2
35
37.8
105
110
115
120
130
140
214.2
232.3
251.5
271.7
--
--
135.2
146.8
159.0
171.9
199.8
230.5
213.0
228.7
245.3
262.6
299.0
341.0
229.7
245.8
262.6
280.3
318.0
359.1
40
43
46
49
54
60

 

Charts
P/T Chart
R22 PE Chart
R134A PE Chart
R404A PE Chart
R407C PE Chart
R717 PE Chart

Tables
R22 Properties
R134A Properties
R404A Properties
R407C Properties
R717 Properties

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