Introduction:
gas hfc 227 provides superior fire protection in a wide range of applications from sensitive electrical equipment to industrial applications using flammable liquids. gas hfc 227 is ideal for applications where clean-up of other media presents a problem, where weight versus suppression potential is a factor, where an electrically non-conductive medium is needed and where people compatibility is an overriding factor. When environmental impact is a consideration, gas hfc 227 is particularly useful. It has zero ozone-depleting potential, low global warming potential and a short atmospheric lifetime. These characteristics make it suitable not only for new installations using Fike’s total flooding systems, but also for Halon 1301 replacement applications.
gas hfc 227 is an odorless, colorless, liquefied compressed gas. (See Physical Properties) Table for additional information). It is stored as a liquid and dispensed into the hazard as a colorless, electrically non-conductive vapor that is clear and does not obscure vision. It leaves no residue and has acceptable toxicity for use in occupied spaces at design concentration. gas hfc 227 extinguishes a fire by a combination of chemical and physical mechanisms. gas hfc 227 does not displace oxygen and therefore is safe for use in occupied spaces without fear of oxygen deprivation. gas hfc 227 fire suppressant is widely accepted and respected around the world, with a history of protecting the world's most crucial and irreplaceable assets. It’s used in thousands of applications—including cultural property, data centers, and critical infrastructure—across more than 70 countries.
Physical properties:
Property | |
Chemical Name | 1,1,1,2,3,3,3-Heptafluoropropane |
Chemical Formula | CF3CHFCF3 |
Molecular Weight | 170.03 |
Boiling Point, 1 atm, °C (°F) | –16.34 (2.59) |
Freezing Point, °C (°F) | –131 (–204) |
Critical Temperature, °C (°F) | 101.75 (215.1) |
Critical Pressure, kPa (psia) | 2925.0 (424.24) |
Critical Density, kg/m3 (lb/ft3) | 594.25 (37.098) |
Liquid Density at 25 °C (77 °F), kg/m3 (lb/ft3) | 1387.7 (86.63) |
Density, Saturated Vapor at Boiling Point, kg/m3 (lb/ft3) | 8.4860 (0.52979) |
Vapor Density at 25 °C (77 °F) and 1 atm | 7.1461 (0.4461) |
Specific Heat, Liquid (cP) at 25 °C (77 °F), kJ/kg-°C (Btu/lb°F) | 1.1816 (0.28242) |
Specific Heat, Vapor (cP) at 25 °C (77 °F), kJ/kg-°C (Btu/lb°F) and 1 atm | 0.81327 (0.81327) |
Vapor Pressure, Saturated at 25 °C (77 °F), kPa (psia) | 454.73 (65.9) |
Heat of Vaporization at BP, kJ/kg (Btu/lb) | 131.77 (56.7) |
Thermal Conductivity, Liquid at 25 °C (77 °F), W/m–°C (Btu/hr-ft°F) | 0.060491 (0.034975) |
Thermal Conductivity, Vapor at 1 atm, W/m-°C (Btu/hr-ft°F) | 0.013336 (0.0077103) |
Viscosity, Liquid at 25 °C (77 °F), cP (lb/ft-hr) | 0.23935 (0.57901) |
Viscosity, Vapor at 1 atm, cP (lb/ft-hr) | 0.011590 (0.028038) |
Relative Dielectric Strength at 1 atm, 25 °C (77 °F) (N2=1) | 2.00 |
Solubility of Water in FM-200™ at 20 °C (68 °F), ppm | 600 |
Ozone Depletion Potential, ODP | 0.0 (CFC-11 = 1) |
Global Warming Potential, GWP (100 yr ITH. For CO2, GWP = 1) | 3220 |
Atmospheric Lifetime, yr | 34.2 |
TSCA Inventory Status | Reported/Included |
European List of New Chemical Substances | EINECS, Listed (207-079-2) |
Certificate:
UL listed and REACH registered
PERFORMANCE
HFC-227ea is an effective fire extinguishing agent that can be used on many types of fires. It is effective for many surface fires, such as flammable liquids, and most solid combustible materials.
On a weight-of-agent basis, HFC-227ea is a very effective gaseous extinguishing agent. The HFC-227ea extinguishing concentration for normal Class A combustibles is 6.25 by volume. The minimum design concentration for total flood applications should be in accordance with NFPA 2001.
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