7 - 1
September 2004
Argonite
®
Engineered Fire Suppression System
38-KFSARG-000
7-1
INTRODUCTION
The purpose of this chapter is to provide the minimum design requirements for Argonite
®
fire extinguishing systems based upon sound engineering principles, current international
standards, test data and field experiences.
General requirements and design criteria are based on NFPA 2001.
Nothing within this chapter intends to restrict new technologies or findings, providing
that the level of safety prescribed is not reduced. This chapter does not cover general
requirements and design criteria for fire detection and control systems. Reference should
be made to local requirements.
7-2
GENERAL
Kidde Fire Systems Argonite fire extinguishing systems utilize a pure inert gaseous
extinguishing agent of 50% Nitrogen and 50% Argon when discharged into an enclosed
hazard. (See MSDS in Appendix A.)
Argonite Fire Extinguishing Systems are usually applied as total flooding systems.
Individual system designs may vary considerably, depending on the nature of the hazard
and the flammable material involved.
7-3
PHYSICAL PROPERTIES OF ARGONITE
Table 7-1. Properties of Argonite
Property
Units
Value
Molecular Weight
N/A
33.95
Boiling Point at 760 mm Hg
°C
-190.1
Freezing Point
°C
-199.7
Critical Temperature
°C
-134.7
Critical Pressure
kPa
4,150
Specific Heat, Vapor at Constant Pressure (1 atm) and 25°C
kJ/kg°C
0.782
Chemical Formula
N2 (Nitrogen)
Ar (Argon)
50%
50%
CHAPTER 7
SYSTEM DESIGN
