Direct Release Systems
This system consumes less gas, produces less waste, and is cost-effective compared with systems that protect the entire area against fire hazards.
The system's basic components are the extinguishing gas cylinder, the cylinder control head, and the polymer pipe detector that will provide detection and gas discharge. This pipe is installed in the parts of the detector cabinet where the fire is expected to occur. It is made of polymer and will provide detection and gas discharge. This pipe is installed in the parts of the detector cabinet where the fire is expected to occur in the form of a serpentine. The cylinder control head is then locked with the nitrogen-pressurized pipe detector.
When the temperature in the area where the fire occurred reaches 110 °C, the pipe detector splits. First, the pressurized nitrogen inside is discharged onto the system, causing the control head to open and the extinguishing gas in the cylinder to be discharged onto the fire from the pipe detector's slit area. The fire is extinguished quickly before it spreads.
In addition to the system described above and called "direct type", there are also "indirect type" systems in which the pipe detector is used only to detect the fire, and extinguishing is provided with a separate nozzle.
The following extinguishing gases can be used in direct-release systems:
- Carbon dioxide (CO2)
- Novec 1230 (FK 5-1-12)
- FM-200 (HFC227ea)
Since the system uses a mechanical method of detection, the signal to the central fire alarm system can be transmitted via an optional solenoid head.
In brief
- It is quick and effective because it puts out the fire at its source.
- Installation takes little time and is simple.
- It preserves small volumes rather than the entire space, which makes it a low-cost solution.
- As only a small amount of CO2 gas is discharged, it is less likely to harm human health.
- There are no moving parts or electrical components in it, so it is reliable.
Scope of application::
- Server cabinets
- Electric panels