1-2.2.5 Storage; Hfc-227Ea Select Physical Properties, U.s. Units; Hfc-227Ea Select Physical Properties, Metric Units - Kidde Fire Systems ECS Manual

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
For more properties, see NFPA 2001
For more properties, see NFPA 2001
06-236115-001
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
0
0 20 40
Table 1-1. HFC-227ea Select Physical Properties, U.S. Units
Description
Molecular Weight
Boiling Point at 1 atm
Heat of Vaporization at Boiling Point
Vapor Pressure at 75 °F
Liquid Density at 77 °F
Table 1-2. HFC-227ea Select Physical Properties, Metric Units
Description
Molecular Weight
Boiling Point at 1 atm
Heat of Vaporization at Boiling Point
Vapor Pressure at 25 °C
Liquid Density at 25 °F
75 lb./cu ft.
72 lb./cu ft.
70 lb./cu ft.
65 lb./cu ft.
50 lb./cu ft.
60 80 100 120 140 160 180
Temperature (°F)
Units
N/A
°F
Btu/lb.
psi
3
lb./ft
Units
N/A
°C
kJ/kg °C
kPa
3
kg/m
1-5
General Information
Measurement
170.03
2.59
56.7
65.9
37.1
Measurement
170.03
-16.3
132.6
454.7
594.2
October 2014