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General Information
06-236115-001
1-5
October 2014
1-2.2.5
Storage
HFC-227ea is stored in steel containers at 360 PSIG at 70°F (25 bar at 21°C) as a liquid with
nitrogen added to improve the discharge characteristics. The pressure of the stored HFC-227ea
varies substantially with temperature changes, as illustrated in Figure 1-1. When discharged,
the HFC-227ea liquid vaporizes at the discharge nozzles and is uniformly distributed as it
enters the fire area.
Figure 1-1. HFC-227ea Pressure/Temperature Curve Isometric Diagram
Table 1-1. HFC-227ea Select Physical Properties, U.S. Units
Description
Units
Measurement
Molecular Weight
N/A
170.03
Boiling Point at 1 atm
°F
2.59
Heat of Vaporization at Boiling Point
Btu/lb.
56.7
Vapor Pressure at 75 °F
psi
65.9
Liquid Density at 77 °F
lb./ft
3
37.1
For more properties, see NFPA 2001
Table 1-2. HFC-227ea Select Physical Properties, Metric Units
Description
Units
Measurement
Molecular Weight
N/A
170.03
Boiling Point at 1 atm
°C
-16.3
Heat of Vaporization at Boiling Point
kJ/kg °C
132.6
Vapor Pressure at 25 °C
kPa
454.7
Liquid Density at 25 °F
kg/m
3
594.2
For more properties, see NFPA 2001
Temperature (°F)
Pressure
(PSIG)
0
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
0
20
40
60
80
100
120
140
160
180
50 lb./cu ft.
65 lb./cu ft.
70 lb./cu ft.
72 lb./cu ft.
75 lb./cu ft.
Содержание ECS
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