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Design and Function
The extinguishing agent containers are designed, produced and marked in accordance with
American standards (e.g. DOT) or other country-specific pressure equipment guidelines. An
appropriate nameplate is attached to each extinguishing agent container.
4.5.1 Quick release valve QRV
FIGURE 4-7: Quick release valve QRV
1. Thread for manual/electrical release device (here with a plastic protective cap)
2. Pressure relief button for the filling process
3. Pressure gauge connection
4. Bursting disc safety device (safety screw)
5. Valve inlet
6. Sequence valve connection
7. Valve output
8. Locking nut
9. Control connection
The quick release valve is installed on an extinguishing agent container and can be opened
pneumatically, electrically or manually. When the valve is open, the extinguishing agent flows
through the pipelines to the extinguishing nozzles.
The valve works according to the differential pressure system. By activating a release device,
the pilot valve integrated in the valve is opened and the upper pressure chamber is vented
abruptly. This drop in pressure causes the extinguishing agent container pressure to press the
closing piston in the opened position, thereby opening the valve.
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Operator's Manual | Oxeo PR LCP | F_101821 Rev 02 | 08-2022 | en
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