R-1234ze(E) PT Chart

R-1234ze(E) saturation pressure, −40 to 150 °F−40 to 65 °C. Used in chillers and low-GWP medium-temperature systems.

How to use ↓

Safety class A2LSingle component (HFO)No glideNo glide

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Step 3 Temperature

°F°C

Type a temperature to see the saturation pressure.

R-1234ze(E) pressure temperature table

Below 0 psig: inches of mercury vacuum. Highlighted: 40 °F and 100 °F.Negative kPa = vacuum. Highlighted: 4 °C and 38 °C.

R-1234ze(E) saturation pressure by temperature, °F and psig (vacuum in inches of mercury)
°F	Pressure psig
-40	19.1 inHg
-39	18.7 inHg
-38	18.4 inHg
-37	18.1 inHg
-36	17.7 inHg
-35	17.4 inHg
-34	17.0 inHg
-33	16.6 inHg
-32	16.2 inHg
-31	15.8 inHg
-30	15.4 inHg
-29	15.0 inHg
-28	14.6 inHg
-27	14.2 inHg
-26	13.7 inHg
-25	13.3 inHg
-24	12.8 inHg
-23	12.4 inHg
-22	11.9 inHg
-21	11.4 inHg
-20	10.9 inHg
-19	10.4 inHg
-18	9.9 inHg
-17	9.3 inHg
-16	8.8 inHg
-15	8.2 inHg
-14	7.7 inHg
-13	7.1 inHg
-12	6.5 inHg
-11	5.9 inHg
-10	5.3 inHg
-9	4.6 inHg
-8	4.0 inHg
-7	3.4 inHg
-6	2.7 inHg
-5	2.0 inHg
-4	1.3 inHg
-3	0.6 inHg
-2	0.1
-1	0.4
0	0.8
1	1.2
2	1.5
3	1.9
4	2.3
5	2.7
6	3.1
7	3.5
8	4.0
9	4.4
10	4.8
11	5.3
12	5.8
13	6.2
14	6.7
15	7.2
16	7.7
17	8.2
18	8.7
19	9.2
20	9.7
21	10.2
22	10.8
23	11.3
24	11.9
25	12.5
26	13.0
27	13.6
28	14.2
29	14.8
30	15.4
31	16.1
32	16.7
33	17.4
34	18.0
35	18.7
36	19.4
37	20.1
38	20.8
39	21.5
40	22.2
41	22.9
42	23.7
43	24.4
44	25.2
45	26.0
46	26.8
47	27.6
48	28.4
49	29.2
50	30.0
51	30.9
52	31.7
53	32.6
54	33.5
55	34.4
56	35.3
57	36.2
58	37.2
59	38.1
60	39.1
61	40.1
62	41.1
63	42.1
64	43.1
65	44.1
66	45.2
67	46.2
68	47.3
69	48.4
70	49.5
71	50.6
72	51.7
73	52.9
74	54.0
75	55.2
76	56.4
77	57.6
78	58.8
79	60.1
80	61.3
81	62.6
82	63.9
83	65.2
84	66.5
85	67.8
86	69.2
87	70.6
88	71.9
89	73.3
90	74.8
91	76.2
92	77.6
93	79.1
94	80.6
95	82.1
96	83.6
97	85.2
98	86.7
99	88.3
100	89.9
101	91.5
102	93.1
103	94.8
104	96.5
105	98.2
106	99.9
107	101.6
108	103.3
109	105.1
110	106.9
111	108.7
112	110.5
113	112.4
114	114.2
115	116.1
116	118.0
117	120.0
118	121.9
119	123.9
120	125.9
121	127.9
122	129.9
123	132.0
124	134.1
125	136.2
126	138.3
127	140.4
128	142.6
129	144.8
130	147.0
131	149.3
132	151.5
133	153.8
134	156.1
135	158.4
136	160.8
137	163.2
138	165.6
139	168.0
140	170.5
141	172.9
142	175.4
143	178.0
144	180.5
145	183.1
146	185.7
147	188.3
148	191.0
149	193.6
150	196.3

R-1234ze(E) saturation pressure by temperature, °C and kPa (negative = vacuum)
°C	Pressure kPa
-40	-64.6
-39	-62.6
-38	-60.5
-37	-58.3
-36	-56.0
-35	-53.6
-34	-51.2
-33	-48.6
-32	-45.9
-31	-43.1
-30	-40.2
-29	-37.2
-28	-34.1
-27	-30.8
-26	-27.5
-25	-24.0
-24	-20.3
-23	-16.6
-22	-12.7
-21	-8.6
-20	-4.5
-19	-0.1
-18	4.4
-17	9.0
-16	13.8
-15	18.8
-14	23.9
-13	29.2
-12	34.6
-11	40.3
-10	46.1
-9	52.1
-8	58.3
-7	64.7
-6	71.3
-5	78.1
-4	85.1
-3	92.3
-2	99.7
-1	107.4
0	115.2
1	123.3
2	131.6
3	140.2
4	149.0
5	158.0
6	167.3
7	176.8
8	186.6
9	196.7
10	207.0
11	217.6
12	228.5
13	239.7
14	251.1
15	262.8
16	274.9
17	287.2
18	299.8
19	312.8
20	326.0
21	339.6
22	353.5
23	367.7
24	382.3
25	397.2
26	412.4
27	428.0
28	444.0
29	460.3
30	477.0
31	494.1
32	511.5
33	529.3
34	547.5
35	566.1
36	585.1
37	604.5
38	624.3
39	644.5
40	665.1
41	686.2
42	707.7
43	729.6
44	752.0
45	774.8
46	798.1
47	821.8
48	846.1
49	870.7
50	895.9
51	921.5
52	947.7
53	974.3
54	1001.5
55	1029.1
56	1057.3
57	1086.0
58	1115.2
59	1144.9
60	1175.2
61	1206.1
62	1237.5
63	1269.5
64	1302.0
65	1335.1

Back to the lookup ↑

R-1234ze(E) PT Chart

°F / psig · Safety class A2L · Single component (HFO)

refrigerantptchart.com

°F	psig
-40	19.1"
-39	18.7"
-38	18.4"
-37	18.1"
-36	17.7"
-35	17.4"
-34	17.0"
-33	16.6"
-32	16.2"
-31	15.8"
-30	15.4"
-29	15.0"
-28	14.6"
-27	14.2"
-26	13.7"
-25	13.3"
-24	12.8"
-23	12.4"
-22	11.9"
-21	11.4"
-20	10.9"
-19	10.4"
-18	9.9"
-17	9.3"
-16	8.8"
-15	8.2"
-14	7.7"
-13	7.1"
-12	6.5"
-11	5.9"
-10	5.3"
-9	4.6"
-8	4.0"
-7	3.4"
-6	2.7"
-5	2.0"
-4	1.3"
-3	0.6"
-2	0.1
-1	0.4
0	0.8
1	1.2
2	1.5
3	1.9
4	2.3
5	2.7
6	3.1
7	3.5

°F	psig
8	4.0
9	4.4
10	4.8
11	5.3
12	5.8
13	6.2
14	6.7
15	7.2
16	7.7
17	8.2
18	8.7
19	9.2
20	9.7
21	10.2
22	10.8
23	11.3
24	11.9
25	12.5
26	13.0
27	13.6
28	14.2
29	14.8
30	15.4
31	16.1
32	16.7
33	17.4
34	18.0
35	18.7
36	19.4
37	20.1
38	20.8
39	21.5
40	22.2
41	22.9
42	23.7
43	24.4
44	25.2
45	26.0
46	26.8
47	27.6
48	28.4
49	29.2
50	30.0
51	30.9
52	31.7
53	32.6
54	33.5
55	34.4

°F	psig
56	35.3
57	36.2
58	37.2
59	38.1
60	39.1
61	40.1
62	41.1
63	42.1
64	43.1
65	44.1
66	45.2
67	46.2
68	47.3
69	48.4
70	49.5
71	50.6
72	51.7
73	52.9
74	54.0
75	55.2
76	56.4
77	57.6
78	58.8
79	60.1
80	61.3
81	62.6
82	63.9
83	65.2
84	66.5
85	67.8
86	69.2
87	70.6
88	71.9
89	73.3
90	74.8
91	76.2
92	77.6
93	79.1
94	80.6
95	82.1
96	83.6
97	85.2
98	86.7
99	88.3
100	89.9
101	91.5
102	93.1
103	94.8

°F	psig
104	96.5
105	98.2
106	99.9
107	101.6
108	103.3
109	105.1
110	106.9
111	108.7
112	110.5
113	112.4
114	114.2
115	116.1
116	118.0
117	120.0
118	121.9
119	123.9
120	125.9
121	127.9
122	129.9
123	132.0
124	134.1
125	136.2
126	138.3
127	140.4
128	142.6
129	144.8
130	147.0
131	149.3
132	151.5
133	153.8
134	156.1
135	158.4
136	160.8
137	163.2
138	165.6
139	168.0
140	170.5
141	172.9
142	175.4
143	178.0
144	180.5
145	183.1
146	185.7
147	188.3
148	191.0
149	193.6
150	196.3

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-1234ze(E) PT Chart

°C / kPa (gauge) · Safety class A2L · Single component (HFO)

refrigerantptchart.com

°C	kPa
-40	-64.6
-39	-62.6
-38	-60.5
-37	-58.3
-36	-56.0
-35	-53.6
-34	-51.2
-33	-48.6
-32	-45.9
-31	-43.1
-30	-40.2
-29	-37.2
-28	-34.1
-27	-30.8
-26	-27.5
-25	-24.0
-24	-20.3
-23	-16.6
-22	-12.7
-21	-8.6
-20	-4.5
-19	-0.1
-18	4.4
-17	9.0
-16	13.8
-15	18.8
-14	23.9
-13	29.2
-12	34.6
-11	40.3
-10	46.1
-9	52.1
-8	58.3
-7	64.7
-6	71.3
-5	78.1

°C	kPa
-4	85.1
-3	92.3
-2	99.7
-1	107.4
0	115.2
1	123.3
2	131.6
3	140.2
4	149.0
5	158.0
6	167.3
7	176.8
8	186.6
9	196.7
10	207.0
11	217.6
12	228.5
13	239.7
14	251.1
15	262.8
16	274.9
17	287.2
18	299.8
19	312.8
20	326.0
21	339.6
22	353.5
23	367.7
24	382.3
25	397.2
26	412.4
27	428.0
28	444.0
29	460.3
30	477.0
31	494.1

°C	kPa
32	511.5
33	529.3
34	547.5
35	566.1
36	585.1
37	604.5
38	624.3
39	644.5
40	665.1
41	686.2
42	707.7
43	729.6
44	752.0
45	774.8
46	798.1
47	821.8
48	846.1
49	870.7
50	895.9
51	921.5
52	947.7
53	974.3
54	1001.5
55	1029.1
56	1057.3
57	1086.0
58	1115.2
59	1144.9
60	1175.2
61	1206.1
62	1237.5
63	1269.5
64	1302.0
65	1335.1

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-1234ze(E) chart

This R-1234ze(E) pressure temperature chart gives the saturation pressure for every degree, in psig with °F or kPa (gauge) with °C. Below 0 psig the °F table shows inches of mercury (inHg) vacuum.

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

FAQ

What is the R-1234ze(E) pressure at 40 °F?

22.2 psig at saturation, from the table above.

What is the R-1234ze(E) pressure at 100 °F?

89.9 psig at saturation.

Does R-1234ze(E) have glide?

No. R-1234ze(E) is a single-component refrigerant, so one saturation pressure works for both superheat and subcooling.

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R-1234ze(E) PT Chart

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R-1234ze(E) pressure temperature table

How to use

About this R-1234ze(E) chart

FAQ

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