1) Chemical inhibition: HFC-227ea fire extinguishing agent can inert the active free radicals in the flame and block the chain reaction during combustion;
2) Cooling: When the HFC-227ea fire extinguishing agent is sprayed out of the nozzle, the liquid fire extinguishing agent rapidly transforms into a gaseous state and needs to absorb a lot of heat, which reduces the temperature around the flame in the protection zone;
3) Asphyxiation: The spray of fire extinguishing agent in the protected area reduces the concentration of oxygen and reduces the moderateness of combustion.
SYSTEM DATA | |||
Model | QMQ4.2/90N-JM | QMQ4.2/120N-JM | QMQ4.2/150N-JM |
Cylinder Capacity (L) | 90 | 120 | 150 |
Max. Working Pressure (MPa) | 5.3 | ||
Storage Pressure (MPa) | 4.2 | ||
Working Temperature Range | 0~50°C (System room); -10°C (Min Temp. in protection area) | ||
Charging Rate (Kg/L) | ≤0.95 | ||
Air actuating Pressure (MPa) | 6 | ||
Operating Voltage (V) | AC220 | ||
Back-Up Power (V) | DC24 | ||
Discharging Time (S) | ≤10 | ||
System Startup Method | Automatic / manual / emergency operation | ||
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-Low concentration of HFC
-227ea required means less visual obscurity and minimal risk to personnel.
-Small quantity of agent discharged minimises over pressurisation of the protection area.
-Max Safety for personnel due to low toxicity.
-High effective with 10 second discharge time when used with automatic detection.
-Prevent re-ignition as long as concentration levels are maintained.
-Two kinds of working pressure system are available,(25 bar / 360 psi and 42 bar / 600 psi).
