1
Refrigeration
R414b
R414b utilizes 4 refrigerant components which when blended together, result in low and high pressure readings
similar to pressure, normally seen in a R12 system. R414b is a drop-in replacement not requiring system
adjustments, oil changes, or retrofit procedures. Just complete your repair and replace the R12 with R414b
(adjusting the amount of charge). It's that simple.
Advantages
• Compatible with Mineral, Alkylbenzene and Polyol Ester oils,
therefore no oil change required.
• Works in low, medium, and high temperature systems, therefore the
service truck carries One Tank to replace all R12 applications.
• R414b increases capacity of:
- R12 system by 8%.
- R134a system up to 15 to 20%.
- R500 system - no capacity change.
• Operating systems will have pressures and temperature very similar to
R12 pressures and temperatures ± 1 to 5%.
• Reduce ozone depletion to 0.034 or 97% less than R12.
• ASHRAE listed - R414b.
• ASHRAE listed A1 completely Non Toxic/Non Flammable.
• CSA recognized.
• Charging systems is easier than ever. Refrigerant must leave the
container as a liquid. If charging by weigh scales, reduce the amount
to 80% of name plate. If charging by charging cylinder, use the R12
scale and charge as if it was R12 (same volume). That volume will
weigh 20% less. R414b should not be mixed with other refrigerants.
• TXV systems charged with R414b may require a super heat adjustment
after system stabilizes. If charging by sight glass, a clear sight glass
will probably be over charged, a trace bubble is normal.
• Recovery/ recycling procedure is the same as any other blended
refrigerant. Do not mix in your cylinders.
Performance Specs:
Normal boiling point
-33°C (-28°F)
Critical temperature
131°C (268°F)
Density, liquid at 24°C (75°F).
72.42lb/ 3'
Quality Specs:
Max. moisture, ppm
(wt)
10
Max. non-absorbable gasses
(vol)
1.5%
Max. high boiling impurities
(vol)
0.01%
Safety Specs:
Recommended maximum
exposure limits in air
1000 ppm
Flammability: Non-flammable as formulated,
& in worst case fractionation.
Features
• The Environment Friendly
R-12 Drop-In Replacement.
• ASHRAE Designated.
• No Expensive Retrofits.
• ASHRAE Rated A1.
Non Toxic - Non Flammable.
• Cooler - Safer - More Efficient
At All Temperature Ranges.
• Completely Compatible with
Most System’s Components.
Refrigerant - R414b
Temperature/ Pressures Chart
Temperature PSIG
R12
Mean
Average
Bubble Point
PSIG
Sat Liquid
Dew Point
PSIG
Sat Vapour
°F
°C
-40
-40 -11.0 -11.5
-7.7
-15.3
-35
-37
-8.4
-8.9
-4.7
-13.2
-30
-34
-5.5
-6.0
-1.4
-10.7
-25
-32
-2.3
-3.5
1.1
-8.1
-20
-29
0.6
-1.0
3.1
-5.1
-15
-26
2.5
1.4
4.9
-2.0
-10
-23
4.5
4.2
7.6
0.8
-5
-20
6.8
6.4
10.2
2.7
0
-18
9.2
8.9
13.0
4.9
5
-15
11.8 11.7
16.1
7.3
10
-12
14.6 14.7
19.5
9.9
15
-9
17.7 17.9
23.1
12.7
20
-7
21.0 21.3
26.9
15.8
25
-4
24.6 25.1
31.1
19.1
30
-1
28.5 29.3
35.6
23.1
35
2
32.6 33.6
40.6
26.7
40
4
37.0 38.2
45.6
30.9
45
7
41.7 43.3
51.2
35.5
50
10
46.7 48.6
57.0
40.3
55
13
52.0 54.4
63.3
45.6
60
16
57.0 60.6
70.0
51.2
65
18
63.8 67.5
77.8
57.2
70
21
70.2 74.1
84.6
63.6
75
24
77.0 81.6
92.7
70.5
80
27
84.2 89.4
101.1
77.8
85
29
91.8 97.8
110.0
85.6
90
32
99.8 106.6
119.5
93.8
95
35 108.3 115.9
129.4
102.5
100
38 117.2 125.8
139.9
111.8
105
40 126.6 136.2
150.9
121.6
110
43 136.4 147.2
162.5
132.0
115
46 146.8 158.7
174.6
142.9
120
49 157.7 170.9
187.4
154.5
125
52 169.1 183.7
200.7
166.7
130
54 181.0 197.1
214.7
179.5
135
57 193.5 211.1
229.3
193.0
140
60 206.6 225.9
244.6
207.2
Refrigerant - R414b
Part #
Description
Weight
57-R414B
R12 drop-in replacement. 21.8kg (48lb)
R12 Drop-in
Replacement
57-R414B
Illustrated
ENVIRO Refrigerants
Refrigerant
