FIRETRACE FTILPINTHTBI, Operating Manual

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3 - System Design and Limitations
The FTILPINTHTBI Fire Suppression System design limitations were established and tested by Firetrace Ltd. The units
are certified by SP Technical Institute of Sweden.
These units were subjected to numerous performance tests to verify their suitability and to establish design limitations
for:
7. Hazard Volume
8. Operating Temperature Range
9. Nozzle Placement
10. Nozzle Quantity
11. Maximum Length/Size of Piping and Number of Fittings
Firetrace systems are pre-designed to minimise the amount on engineering required when evaluating a design for
specific application. As long the discharge piping, nozzles and Firetrace tubing is installed within the limits prescribed
in this manual then no further calculations are required for pressure drop, flow rates, or discharge time. When any
additional limitations to hazard volume, area coverage, maximum height, design concentration, agent quantity,
detector arrangement, etc., are also met, the system installation can be understood to comply with the design
requirements. Therefore, no discharge tests or concentration measurements should be required.
Storage and Operating Temperatures
Firetrace® cylinders are designed to be stored and operated at the ambient temperature range of
-20°C and +60°C (-4°F and +140°F)
System Operating Pressure
The normal operating pressure for Firetrace® Systems is 12bar at 20°C (174psig at 68°F).
All Firetrace® systems are designed for an operating temperature range of -20°C to +60°C. Table 1 shows the cylinder
gauge pressure-temperature relationship based on a charging pressure of 12bar at 20°C.
Cylinder Pressure
°C °F bar psig
-20 -4 10.2 148.2
-10 14 10.6 154.7
0 32 11.1 161.1
10 50 11.5 167.5
20 68 12 174
30 86 12.4 180.4
40 104 12.9 186.9
50 122 13.3 193.3
60 140 13.8 199.8
Table 1: Cylinder Pressure-Temperature Relationship