SECTION 1 – EQUIPMENT
UL / ULC Ex4623 Fike Clean Agent System w/ FM-200™ Page 1 of 25
FM 3010715 Manual P/N: 06-215 (Rev G) Revision Date: January, 2010
This section covers the hardware utilized by Fike Clean Agent Fire Suppression Systems, including the optional
items that are available. All of the information contained herein is believed to be accurate and up-to-date.
However, it should be noted that all dimensions shown are approximate and Fike reserves the right to make
adjustments as necessary.
1.1 AGENT
The extinguishing agent used in Fike Suppression Systems is Heptafluoropropane – more commonly known by its
ASHRAE designation: HFC-227ea. HFC-227ea is a colorless, odorless, liquefied compressed gas. (See the
Physical Properties Table below.) It is stored as a liquid, but dispensed into the hazard as a colorless,
electrically-nonconductive, gaseous vapor due to its relatively low boiling point. HFC-227ea has been tested and
verified to be safe for use in occupied spaces when used as specified in the U.S. EPA Significant New Alternative
Policy (SNAP) rules. Tests have proven that exposure to HFC-227ea is safe and effective in extinguishing fires at
low concentrations; most of which are well below the EPA’s maximum exposure levels. HFC- 227ea is approved
for use in occupied areas up to a 10.5% concentration by volume with mandated egress time of five (5) minutes.
1.2 PERFORMANCE
HFC-227ea’s mechanism of extinguishing fires is considered active. Its primary action is through physically
cooling the fire at the molecular level. HFC-227ea belongs to the same class of agents used in refrigeration and
as such, is an efficient heat transfer agent. HFC-227ea removes the thermal energy from the fire to the extent
where the combustion reaction cannot sustain itself. Additionally, there is a chemical action that provides a
secondary means of extinguishing the fire. Trace amounts of free radicals are released into the fire – thereby
inhibiting the chain reaction of combustion. HFC-227ea does not significantly reduce oxygen levels and is safe
for use in occupied spaces in accordance with the U.S. EPA guidelines. HFC-227ea can be removed from the
protected space by simple means of ventilation after discharge.
1.3 PHYSICAL PROPERTIES OF HFC-227ea (FM-200™)
Chemical Name 1,1,1,2,3,3,3-Heptafluoropropane
Chemical Formula CF CHFCF
CAS No. 431-89-0
Molecular Wt. 107.03
Boiling Point, 1 atm,
o
C (
o
F) -15.9
o
F (3.9)
Freezing Point,
o
C (
o
F) -133 (-204)
Flammable Limits nonflammable
Critical Temperature,
o
C (
o
F) 101.6 (214.9)
Critical Pressure, kPa (psia) 2930.6 (424.7)
Critical Density, kg/m
3
(lb/ft
3
) 621 (38.77)
Liquid Density @ 25
o
C (77
o
F), kg/m
3
(lb/ft
3
)
1386 (86.53)
Vapor Density @ 25
o
C (77
o
F) and 1atm, kg/m
3
(lb/ft
3
) 7.148 (0.4462)
Specific Heat, Liquid (Cp) @ 25
o
C (77
o
F), kJ/kg-
o
C (Btu/lb
o
F) 1.247 (0.2979)
Specific Heat, Vapor (Cp) @ 25
o
C (77
o
F), kJ/kg-
o
C (Btu/lb
o
F) and 1 ATM 0.8136 (0.1945)
Vapor Pressure, Saturated @ 25
o
C (77
o
F), kPa (psia) 453.3 (65.7)
Heat of Vaporization @ B.P., kJ/kg (Btu/lb) 132.6 (56.7)
Thermal Conductivity, Liquid @ 25
o
C (77
o
F),W/m-
o
C (Btu/hr-ft
o
F) 0.0533 (0.0308)
Thermal Conductivity, Vapor @ 25
o
C (77
o
F),W/m-
o
C (Btu/hr-ft
o
F) 0.0127 (0.0073)
Viscosity, Liquid (lb/ft-hr) @ @ 25
o
C (77
o
F), cP (lb/ft-hr) 0.2442 (0.5907)
Relative dielectric strength @ 1atm, 25
o
C (N
2
=1) 2.00
Solubility of Water in HFC-227ea @ 20
o
C (68
o
C ), ppm 600
Ozone Depletion Potential 0.0 (CFC-11 = 1)
Global Warming Potential, GWP (100 yr. ITH. For CO2, GWP = 1) 2900
Atmospheric Lifetime, years 36.5
TSCA Inventory Status Reported, Included
European List of New Chemical Substances EINECS, Listed (207-079-2)
SNAP Status Listed
Inhalation Exposure Limit
TLV Not Established DuPont AEL = 1000
ppm 8 hr & 12 hr TWA
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