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 | ||
Agent Cylinder
The fire extinguishing agent cylinder filled by JUNMO with HFC-227ea, and super-pressurised with dry nitrogen to 25 bar @ 21℃ (360 psi @ 70°F) and 42 bar @ 21℃ (600 psi @ 70°F).
JUNMO Agent Cylinders sharing the same manifold shall be equal in size and fill density. Cylinders are finished in red and are available in various sizes.
Volume | Fill Capacity (kg) Maximum | Fill Capacity (kg) Minimum | Outlet Size | Height | Diameter | Empty Weight |
40L | 19.2 | 44.8 | 33/49 | 830 | 324 | 42.0 |
50L | 24.0 | 56.0 | 33/49 | 950 | 324 | 43.6 |
60L | 28.8 | 67.2 | 33/49 | 1100 | 324 | 49.9 |
70L | 33.6 | 78.4 | 49 | 1250 | 324 | 56.2 |
80L | 38.4 | 89.6 | 49 | 1400 | 324 | 62.6 |
90L | 43.2 | 100.8 | 49 | 1200 | 406 | 68.4 |
100L | 48.0 | 112.0 | 49 | 1310 | 406 | 72.4 |
120L | 57.6 | 134.4 | 49 | 1245 | 406 | 96.2 |
150L | 72.0 | 168.0 | 49 | 1495 | 406 | 113.1 |
180L | 86.4 | 201.6 | 49 | 1745 | 462 | 130.2 |
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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).
