FE25 - HFC125 Extinguishing System - Synergy Fire Protection -

APPLICATION / DESCRIPTION

HFC-125 fire suppression agent is an environmentally acceptable replacement for Halon 1301. HFC-125 has a zero ozone depleting potential, a low global warming potential, and a short atmospheric lifetime. It is particularly useful where an environmentally acceptable agent is essential, 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. HFC-125 can be used to protect a wide range of applications from sensitive electrical equipment to industrial applications. Consult the current NFPA Standard 2001 and/or ISO 14520 for specific applications. HFC-125 fire suppression agent is used with Fike’s total flooding systems.

HFC-125 is an odorless, colorless, liquefied compressed gas. 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. HFC-125 extinguishes a fire by a combination of chemical and physical mechanisms. HFC-125 does not displace oxygen and therefore is safe for use in occupied spaces without fear of oxygen deprivation.

SPECIFICATION

HFC-125 is of high organic purity and essentially residue-free, meeting the following quality specifications:

• Purity, % by weight: 99.0 Min.

• Moisture, ppm by weight: 10 Max.

• Acidity, ppm by weight, expressed as HCl: 0.1 Max.

• Residue, % by volume: 0.01 Max.

PHYSICAL PROPERTIES

Chemical Name/Formula Pentafl uoroethane / CHF2CF3

CAS Number 354-33-6

European Classifi cation Number EC-No.: 206-5578

Molecular Weight 120.02

Vapor Density @ 25°C (77°F) and atm, kg/m3 (lb/ft3) 4.982 m3 (0.3111)

Vapor Pressure, Saturated @ 25°C (77°F), bar (psia) 13 bar (200.4)

Boiling Point, 1 atm, °C (°F) -48.14 (-54.7)

Freezing Point, °C (°F) -103 (-153)

Solubility in Water in FE-25 @ 25°C (77°F), ppm 700

Critical Temperature, °C (°F) 66.25 (151.25)

Critical Pressure, bar (psia) 36 (526.6)

Critical Volume, cc/mole 210

Critical Density, kg/m3 (lb/ft3) 571.9 (35.70)

Specifi c Heat, Liquid (CP) @ 25°C (77°F), KJ/Kg- °C (Btu/lb°F) 1.37 (0.327)

Specifi c Heat, Vapor (CP) @ 25°C (77°F) KJ/Kg- °C (Btu/lb°F) and 1 atm 0.809 (0.193)

Heat of Vaporization @ Boiling Point KJ/Kg (Btu/lb) 164.4 (70.7)

Thermal Conductivity, Liquid @ 25°C (77°F), W/m- °C (Btu/hr-ft°F) 0.0652 (0.0377)

Thermal Conductivity, Vapor @ 25°C (77°F), W/m- °C (Btu/hr-ft°F) 0.0166 (0.0096)

Viscosity, Liquid @ 25°C (77°F), cP (lb/ft-hr) 0.137

Viscosity, Vapor @ 25°C (77°F), cP (lb/ft-hr) 0.013

Ozone Depletion Potential 0

Global Warming Potential (based on a 100-yr horizon relative to CO2) 2800

Estimated Atmospheric Lifetime* 32.6 years

Inhalation Exposure Limit (AEL-8 and 12hr. TWA), ppm** 1000

Applications:

* Computer rooms

* Telecommunication centers

* Records and data archives

* Testing / imaging equipment

* Reference material

* Chemical laboratories

* Clean rooms

* Control rooms

* Flammable liquid storage

* Offshore drilling rigs

* Robotic equipment

* Textile manufacturing

* Electric utility facilities

* Media storage

* Military vehicles

* Art / artifacts / historical collections