Abstract: Systems and methods for remote monitoring of mechanical fire suppression systems are provided. For example, some embodiments generally provide for a smart fire suppression system with integrated sensors and communication technology to monitor the current state of the fire suppression system and notify various monitoring platforms, service providers, equipment manufacturers and/or others of the current state. In some embodiments, various sensors (e.g., micro switches) can be used to detect and report the status of the cartridge, activation status of the system, and/or the status of the detection line. Additional sensors and actuators may be also be included within the smart fire suppression system to allow monitoring of different states (e.g., temperature) and control the appliance and/or building utilities.

Abstract: A method of manufacturing a self-expanding fire-fighting foam solution is disclosed. Here, the method can include purging air from a container, wherein the purging is performed via flowing an inert gas into the container, such that substantially inert environment is created within the container. In addition, the method can further include dispensing or filling a pre-determined amount of foam concentrate into a container, dispensing or filling a pre-determined amount of water into the container, and mixing the foam concentrate and water within the container, wherein the mixed foam and water within the inert container provide the self-expanding fire-fighting foam solution and having a pH ranging from about 6.8 to 7.8 moles per liter.

Abstract: A method of manufacturing a self-expanding fire-fighting foam solution is disclosed. Here, the method can include purging air from a container, wherein the purging is performed via flowing an inert gas into the container, such that substantially inert environment is created within the container. In addition, the method can further include dispensing or filling a pre-determined amount of foam concentrate into a container, dispensing or filling a pre-determined amount of water into the container, and mixing the foam concentrate and water within the container, wherein the mixed foam and water within the inert container provide the self-expanding fire-fighting foam solution and having a pH ranging from about 6.8 to 7.8 moles per liter.

Abstract: An assembly for a fire extinguisher system includes a fire extinguisher fitting that extends into a fire extinguisher container and a fill adapter. The fitting defines a fitting bore through which a connection portion of a pressure monitoring device at least partially extends and a fitting flange that is disposed about the fitting and is disposed parallel to a flange of the pressure monitoring device. The fill adapter includes an adapter housing and an adapter shaft. The adapter housing is arranged to be disposed about the pressure monitoring device. The adapter shaft that at least partially extends through the adapter housing. The adapter shaft is arranged to engage a monitoring housing of the pressure monitoring device.

Abstract: An emitter system capable of discharging an atomized liquid-gas stream or a liquid stream which atomizes into a spray has a source of pressurized gas and one or more sources of pressurized liquids. Flow of gas and liquid to an emitter is controlled by valves, and the emitter can be used to discharge either the atomized liquid-gas stream or the liquid stream. The emitter system may be used for fire suppression.

Abstract: Described are inerting systems that may be used on board an aircraft or other passenger transportation vehicle to reduce a risk of fire due to electronic components or to other elements in a compartment and to assist in preventing or extinguishing any fire or hazardous condition that may occur. The systems include a source of inert gas such as oxygen depleted air generated from a fuel cell on board the aircraft. The oxygen depleted air or other inert gas is conveyed through ducts to compartments that house the electronics, thus changing the conditions in the compartment to be less conducive to fire.

Abstract: A method of manufacturing a self-expanding fire-fighting foam solution is disclosed. Here, the method can include purging air from a container, wherein the purging is performed via flowing an inert gas into the container, such that substantially inert environment is created within the container. In addition, the method can further include dispensing or filling a pre-determined amount of foam concentrate into a container, dispensing or filling a pre-determined amount of water into the container, and mixing the foam concentrate and water within the container, wherein the mixed foam and water within the inert container provide the self-expanding fire-fighting foam solution and having a pH ranging from about 6.8 to 7.8 moles per liter.

Abstract: At least one embodiment comprises a testing system for a fire suppression system which can comprise at least one fluid conduit having a first end and a second end with an isolating valve and at least one pressure regulating valve coupled to the conduit. A tap is coupled to the fluid conduit, and is positioned between the first end and the second end and be for selectively allowing fluid to flow out from the fluid conduit to allow fluid to flow past the pressure regulating valve. The process for testing a fire suppression system can comprise the following steps: connecting at least one first valve to a fluid conduit, disconnecting sprinkler heads from the fluid conduit, flowing water through the pressure regulating valve determining the flow rate through the pressure regulating valve, and determining the pressure downstream of the pressure regulating valve, stopping testing, and then reporting the results.

Abstract: A one-touch Compressed Air Foam System (CAFS) is provided that allows for a simplified user interface and simplified user operation. The user interface allows the CAFS to activate upon a single press of a single button. An electronic controller checks that several CAFS device parameters show that the CAFS is capable of operating. The controller gathers the device parameter data from a diagnostic system present in the CAFS that gives data pertaining to whether water is flowing, whether foam concentrate is present in the system, whether foam is flowing, and whether the temperature of an air compressor is within a safe range for operation. If the above device parameters are found to be in condition for safe operation of the CAFS, the controller will start and maintain operation until either one of the above falls out of tolerance or the user initiates a shut down of the CAFS.

Abstract: A portable fire extinguishing apparatus, which comprises a casing (20) and a cartridge (3) arranged inside the casing (20). The top end of the cartridge (3) is fixedly connected with the casing (20) through a snap ring (24); the bottom of the cartridge (3) is fixedly connected with the casing (20) through some nuts and bolts; and an explosion venting unit (2) is arranged at the jet end of the cartridge (3). Kinetic energy generated from explosion is consumed through shifting and limiting processes of the explosion venting units (2), therefore recoil force or forward impact force generated after explosion of explosives can be consumed or released, so that safe and effective explosion venting is achieved and hurt to human bodies or articles after explosion of grains is avoided.

Abstract: The present invention relates to an inerting method for extinguishing a fire in a closed room in which the oxygen content in the closed room is reduced to a specific inerting level within a given time (x), as well as a device for carrying out the method. In order to achieve the most exacting design possible to the inert gas fire-extinguishing system used during the inerting method, and in particular the most precise dimensioning possible to the inert gas to be provided, while simultaneously adhering to the required fire-fighting stage and re-ignition prevention stage necessary when extinguishing fires, the invention provides for the inerting level to be kept to the re-ignition prevention level within a given regulation range.

Abstract: The invention relates to an extinguishing device designed for local firefighting in buildings on site at the source of a fire, said extinguishing device having a nozzle device having an extinguishing unit comprising a plurality of extinguishing nozzles designed for applying an extinguishing agent at the location of the source of the fire and for decentralized arrangement in the building, further comprising at least one extinguishing agent container connected to the extinguishing nozzles in a fluid-communicating fashion, at least one pressure-generating device for applying the extinguishing agent via the extinguishing nozzles, and at least one fire alarm sensor. According to the invention, the pressure-generating device is designed to generate an application pressure of at least 10 bar on the extinguishing agent.

Abstract: A foam chamber of a fire suppressant system having a closable testing outlet is disclosed. The foam chamber can operate in a testing mode and an operation mode. The invention has an inlet conduit for accepting a fire suppressant fluid attached to an expansion conduit. An expansion enclosure having two closable outlets is also attached to the inlet conduit and surrounds the expansion conduit. One outlet empties into the expansion enclosure. The other outlet extends through the wall of the expansion enclosure and empties outside of the expansion enclosure. Both of the closable outlets can be fitted with either an unbreakable seal or a frangible seal. If the foam chamber is configured for normal operation, the unbreakable seal is placed on the outlet that extends through the wall of the expansion enclosure and a frangible seal is placed on the outlet that empties into the expansion enclosure.

Abstract: A The foam-type fire distinguishing device includes a water supply unit, a container, a mixing tank, an increasing pressure tank, a pressure device, a transmitting unit and a spray device. The transmitting unit delivers water from the water supply unit and the foam agent from the container to be mixed in the mixing tank to create the water-foam mixture which is then sent to the increasing pressure tank which introduces pressurized air to the water-foam mixture to create fine foams. The water-foam mixture with fine foams are sprayed from the spray device to increase the spread area to increase the efficiency of distinguishing fire.

Abstract: A two-phase liquid/inert gas flow inerting fire suppression system is provided having improved liquid fire suppressant distribution within the inert gas flow. The system includes a flow distribution network having a first pipe interconnected with a second pipe at a flow splitting tee. A liquid flow redistribution device is disposed in the first pipe upstream with respect to fluid flow of the flow splitting tee.

Abstract: A fluid ejection device for example used as a fire extinguisher in which ejected fluid is an extinguishing agent in liquid or powdery form. The device includes: a cylinder shaped tank, split hermetically, perpendicular to its axis, into two chambers by a piston, slidable axially inside the tank; a first chamber, including a non-gaseous fluid, which communicates with an ejection port closed by a cap, which can open for a pressure greater than or equal to a defined pressure in the first chamber; a second pressurization chamber to be connected to a mechanism increasing pressure in the chamber; and a mechanism to link the piston to the tank in full fixity at a storage position, which mechanism can break and release the piston for axial translation at a pressure higher than or equal to a given pressure in the pressurization chamber, to cause the fluid to be ejected.

Abstract: A fire suppression system for a container including a first tank containing a first liquid component of a two-part foam and a second tank containing a second liquid component of the foam. The system also includes at least one liquid component release device configured to be selectively capable of releasing the first and second components from their respective containers upon receipt of a signal from a fire detector upon detection of a fire. The two-part foam components are propelled through the system by a pressurized propellant that, upon release of the release device, causes the exit of the foam components from their respective tanks, through a mixing conduit to at least one nozzle. The nozzle is configured to spray the liquid component foam mixture into the container wherein the foam cures into a substantially semi-rigid, closed cell foam that is substantially impermeable and may have charring and/or intumescence properties.

Abstract: Fire suppression apparatuses include a housing with gas generant material disposed therein, an initiator for igniting the gas generant material, and a cooling system. The cooling system includes a first chamber with a coolant material disposed therein and a second chamber. The coolant material is caused to flow from the first chamber into the second chamber to cool gas formed by the ignition of the gas generant material upon exiting from the housing under pressure. The cooling system may further include a piston disposed within the first chamber and movable responsive to gas pressure. Methods for cooling a fire suppressant gas and methods for suppressing a fire include flowing a fire suppressant gas into first and second chambers of a cooling system, flowing a coolant material from the first chamber into the second chamber, and contacting the fire suppressant gas with the coolant material to cool the fire suppressant gas.

Abstract: A fire suppression apparatus that includes a housing defining a first chamber containing a gas generant. The apparatus further includes an initiator operatively associated with the first chamber and in reaction initiating communication with the gas generant. The initiator, upon actuation, acts to ignite at least some of the gas generant to form gas. The housing further defines a second chamber adjacently disposed to the first chamber. The second chamber contains an endothermically-alterable material and a piston assembly including a piston. Upon actuation, the piston moves to expel at least a portion of the endothermically-alterable material from the second chamber such that the expelled endothermically-alterable material contacts and cools gas formed by the ignition of the gas generant. The housing further has at least one discharge opening to permit cooled gas to exit the housing. Corresponding or associated methods for suppressing a fire are also provided.

Abstract: A scalable cargo-fire-suppression agent distribution system and method is disclosed. A supply source unit subset of a set of fire-suppression agent supply source units is selected based on an operation condition to provide a selected supply source unit subset, and a fire-suppression agent from the selected supply source unit subset is distributed during the operation condition.

Abstract: A device for compensating a filling level (34) in a pressure vessel (1) for an extinguishing agent, includes an extinguishing line (32), a propellant-gas line (37) supplied with propellant gas (31), and an adapter (3) on a threaded socket of the pressure vessel (1). A compensation tank (30) is in communication with the pressure vessel and a shut-off member (9) is arranged between the compensation tank (30) and the pressure vessel (1). The shut-off member is closed automatically to isolate the compensation tank from the pressure vessel when a propellant is applied to the pressure vessel so that the extinguishing agent can be stored without pressure in the extinguishing-agent vessel and can be monitored using a simple device.

Abstract: The present invention describes systems and methods which provide a moisture barrier that douses or diffuses buoyant burning debris, particularly hot embers, from a bush and/or brush fire (e.g., wildfires). By strategic placement of the devices and/or apparatus as disclosed, a method of preventing the destruction of dwellings and roof-containing structures by exploiting heat convection is provided.

Abstract: A local fire shield is provided for protecting an attachment point of a fireproof system in an engine during a fire event. The local fire shield includes a mounting plate mounted on the attachment point; and a cover coupled to the mounting plate for covering the attachment point during the fire event.

Abstract: An exemplary sprinkler system for use within a building includes a plurality of conduits within the building. A plurality of fixtures within the building are coupled with the conduits for providing water from the conduits to at least one individual for personal use. A plurality of sprinkler heads within the building are coupled to the conduits for selectively introducing water from the conduits into at least one portion of the building for fire suppression. A gas source is associated with the sprinkler heads for supplying gas to the sprinkler heads to achieve a fire suppression discharge from the sprinkler heads.

Abstract: A propulsion device for an agent, such as an extinguishing or cooling agent, contained in a cavity has at least a cap and a port configured to open above a calibrated pressure inside the cavity. A pressure generator is fastened to the cap and triggers the propulsion of the agent. The pressure generator has at least two containers, each having an exit ending inside the cavity and releasing a propulsion gas. At least one container is pressurized with an inert-type gas, such as helium, suited for minimal temperature fluctuations induced inside the cavity during a relief of pressure of the gas from at least one of the containers. When the gas expands it is the direct mechanical propellant of the agent.

Abstract: A fire protection system includes a dry pipe system and a controlled discharge gas vent. The dry pipe system and controlled discharge gas vent operate using a breathing cycle to displace oxygen and/or water vapor from within the piping network of the dry pipe system. The controlled gas discharge vent allows displacement of pressurized air with nitrogen, for example, using manual or automated processes that can employ one or more sensors. Corrosion resulting from oxygen, water, and/or microbial growth is reduced or nearly eliminated.

Abstract: A compact device for ejecting a fluid including two chambers separated by a separating element of piston type. One of the chambers contains the fluid intended to be ejected, the other chamber is a pressurization chamber, the pressurization of which can cause translational movement of the separating element and ejection of the fluid. The pressurization chamber includes a thimble capable of sealably separating the inside of the pressurization chamber from the side walls of the reservoir. Thus, a seal between two chambers is perfect and durable without degrading slidability of the piston.

Abstract: A fireproof system is provided for protecting a structure during a fire event. The system includes a fire resistant panel defining a first attachment opening and disposed adjacent to the structure; a canister including a side wall defining a first end and a second end, and an end wall enclosing the first end and defining a second attachment opening that is aligned with the first attachment opening; a fastener extending through the canister at the second attachment opening and the fire resistant panel at the first attachment opening such that the canister, the fire resistant panel, and the structure are fastened together; and a fire retardant agent disposed within the canister in an inactive condition and configured to transition out of the second end of the canister in an active condition at a predetermined temperature.

Abstract: A fire extinction device comprises a reservoir (2) of extinguishing agent and means for generating a pressurized gas (30) such that the gas generated (16) may enter the reservoir (2) when the extinguishing agent (4) is to be ejected onto a fire zone. The device of the invention comprises furthermore a refractory separating element (40) between the extinguishing agent (4) and the pressurizing gas generated (16), in order to avoid heat exchanges between them and to optimise the ejection of the extinguishing agent (4).

Abstract: Extinguishing a fire by pressurizing a tank containing an extinguishing liquid. According to the invention, the tank containing the liquid is provided with an expulsion outlet at a front end, a gas generator (17) is installed at a rear end, and a diaphragm forming an inflatable bag (19) is installed inside the tank, being folded prior to triggering in a confinement space at the front of the gas generator, the outlet from the generator being associated with a deflector (47) including a rearwardly-directed ejection passage (49).

Abstract: A fire and explosion suppression system comprises a source (5) of high pressure water which is fed to a misting nozzle (13) at one input of a mixing unit (6), and a source (14) of high pressure inert gas, such as nitrogen, which is fed along a pipe (20) to another input of the mixing unit (6). Inside the mixing unit (6), water mist, in the form of an atomized mist of very small droplet size is mixed with the pressurized gas and exits the mixing unit (6) at high pressure and high velocity along a pipe (22) and is thence discharged through spreaders (26, 28). The source (5) of the water is pressurized by a feed (30) from the source of pressurized inert gas. The mass flow rate of the water will therefore reduce as the pressure of the gas decays. This tends to maintain the ratio of the mass flow rate of the water to the mass flow rate of the gas constant. This is found to produce and maintain an advantageous distribution of droplet size in the discharged unit.

Abstract: A fire suppressing gas generator includes a cylindrical housing comprising an array of discharge ports distributed generally uniformly therearound; a cylindrical filter disposed within the housing and spaced from the interior wall of the housing; a plurality of azide-based propellant grains inside the cylindrical filter; and at least one ignition device associated with the propellant grains. The propellant grains when ignited by the ignition device generate a fire suppressing gas which passes through the filter and out of the discharge ports of the cylindrical housing for delivery into a space.

Abstract: A fire suppression cylinder includes a valve at an outlet of a canister, and a control for the valve. The canister receives a liquid suppressor agent and a pressurized gas. A feature within a portion of the canister will receive the liquid suppressor agent. The feature increases the formation of gas bubbles within the liquid suppressor agent.

Abstract: The invention relates to a preventing and extinguishing fires in enclosed spaces in which the internal air atmosphere is not permitted to exceed a predefined temperature value. In order not to have to increase the cooling capacity of an air conditioning system when inert gas is added to the internal air atmosphere to set or maintain a specific inertization level within an enclosed space, a system for the regulated discharging of inert gas into same is provided. The system includes a container for the provision and storage of the inert gas in liquified form, and a vaporizer connected to the container for vaporizing at least a portion of the inert gas and discharging same into the internal air atmosphere of the enclosed space. The vaporizer thereby directly or indirectly extracts the heat energy needed to vaporize the liquid inert gas from the internal air atmosphere of the enclosed space.

Abstract: The method is for continuously producing compressed-air foam, notably for fire fighting or for decontamining, by supplying both compressed air and a mixture of water and at least a foaming agent to a foaming chamber (5) outputting foam to a nozzle (9) via a pipe (8). The mixture of foam agent and water and the compressed air are each continuously supplied to the foaming chamber (5) at a constant pressure and at a constant volume flow rate, e.g. by means of pressure regulators (1, 2) and of flow rate regulators (3, 4). The foam pressure is regulated at the outlet of the foaming chamber (5) for maintaining the foam mixing pressure in the foaming chamber constant, preferably by a self-operating valve (6). The foaming chamber can advantageously be of a static type comprising sieves.

Abstract: A method and apparatus for suppressing fires in residential attics and basements. The components of one embodiment function in an integrated way so as to suppress residential attic and basement fires more safely and successfully than do traditional methods of the art of residential firefighting. Electronic messages from fire detection devices in residential attics and basements are processed so that a plurality of actions are performed in order to efficiently suppress fire in those residence spaces, thereby minimizing loss of human life and property. Actions include and are not limited to activation of emergency lighting in affected spaces, activation of surveillance camera devices to enable remote visual monitoring by responders, electronic notification of responders as to the existence and location of fire within the residence, alarm notification of occupants of the residence, and deployment of condensed aerosol agents to suppress or extinguish the residential attic or basement fire.

Abstract: An exemplary fire suppression system includes a sprinkler nozzle. At least one conduit is connected to the nozzle for delivering a fire suppression fluid to the nozzle. The conduit and the nozzle establish a discharge path. A pneumatically driven pump is connected with the conduit for pumping fluid into the conduit. A gas source provides pressurized gas to the pump for driving the pump. The gas source also provides gas to the discharge path for achieving a desired discharge of the fluid from the nozzle. A controller selectively controls at least one of (i) the gas provided to the pump, which controls the fluid pressure in the conduit, or (ii) the gas provided to the nozzle or the conduit, which controls the gas pressure delivered to the nozzle.

Abstract: The fire extinguishing ball includes an outer ball cage, an inner ball cage freely rotatable within the outer ball cage about one axis, and an internal fire extinguishing assembly carried by the inner ball cage and freely rotatable therein about a different axis. The internal fire extinguishing assembly includes a hollow ball-shaped body containing compressed gas and fire extinguishing agents. A valve assembly attached to the top of the body permits refilling of the body and dispersion of the contents during operation. The internal fire extinguishing assembly is connected to the inner ball cage so that the valve assembly will be disposed on top when the fire extinguishing ball is at rest. The ball can be tossed or rolled towards fires in difficult to reach areas. Exposure to heat opens the valve in the valve assembly to thereby disperse the contents of the body and extinguish the flames.

Abstract: An aerosol can has a dispensing valve at one end and discharge device at another end that allows the pressurized can to be safely depressurized. The discharge device has two elements that collectively fit into a wall of the aerosol can. The second element has a through passage within itself and is threadingly connected to the first element. The first element can be rotated such that the second element can move toward the interior of the aerosol can, which in turn opens the through passage to allow pressurized air to exit the can safely.

Abstract: The present invention provides a fire extinguishing device including an upright standing hollow body. An air compressor pump is connected to the hollow body for providing pressurized air to the hollow body. At least one heat activated fluid release valve is connected to the hollow body. The present invention further provides a method of configuring a tree display.

Abstract: In-computer fire suppression, the computer comprising an in-computer flame detector and an in-computer fire extinguisher including detecting, by an in-computer flame detector, a flame, releasing, by the in-computer fire extinguisher, an extinguishing agent in response to the flame detector detecting the flame; and disabling the power supply to the computer having within it the in-computer flame detector and the in-computer fire extinguisher.

Abstract: In-computer fire suppression, the computer comprising an in-computer flame detector and an in-computer fire extinguisher including detecting, by an in-computer flame detector, a flame, releasing, by the in-computer fire extinguisher, an extinguishing agent in response to the flame detector detecting the flame; and disabling the power supply to the computer having within it the in-computer flame detector and the in-computer fire extinguisher.

Abstract: A valve actuation mechanism has a plurality of links. Each link has a proximal end and distal end, and the links are disposed adjacent a valve member. The actuation mechanism also has at least one roller connected to the distal ends of at least two links. The roller contacts a surface of the valve member. In addition, at least one pivot for each link is present in the valve, wherein each pivot is positioned on the proximal end of each of the plurality of links.

Abstract: An automatic fire extinguishing system includes a canister having a central axis, an outlet port disposed on the canister, a dip tube disposed in the canister about the central axis and in partial fluid communication with the canister and coupled to the outlet port, a propellant gas mixture of CO2 and N2 disposed within the canister and a gaseous fire suppression agent disposed in the canister.

Abstract: An automatic fire extinguishing system includes a canister having a central axis, an outlet port disposed on the canister, a dip tube having dip tube side holes and inlet openings, and disposed in the canister about the central axis and in partial fluid communication with the canister and coupled to the outlet port, a propellant gas mixture disposed within the canister and a gaseous fire suppression agent disposed in the canister.

Abstract: An automatic fire extinguishing system includes a canister having a central axis, an outlet port disposed on the canister, a dip tube disposed in the canister about the central axis and in partial fluid communication with the canister and coupled to the outlet port, a propellant gas mixture disposed within the canister, a gaseous fire suppression agent disposed in the canister and a dry powder fire suppression agent disposed in the canister.

Abstract: An automatic fire extinguishing system includes a canister having a central axis, an outlet port disposed on the canister, a dip tube disposed in the canister about the central axis and in partial fluid communication with the canister and coupled to the outlet port, a propellant gas mixture disposed within the canister; and a gaseous fire suppression agent disposed in the canister, wherein a diameter of the outlet port is sized relative to a pressure of the propellant gas mixture.

Abstract: Fire suppression apparatuses include a housing with gas generant material disposed therein, an initiator for igniting the gas generant material, and a cooling system. The cooling system includes a first chamber with a coolant material disposed therein and a second chamber. The coolant material is caused to flow from the first chamber into the second chamber to cool gas formed by the ignition of the gas generant material upon exiting from the housing under pressure. The cooling system may further include a piston disposed within the first chamber and movable responsive to gas pressure. Methods for cooling a fire suppressant gas and methods for suppressing a fire include flowing a fire suppressant gas into first and second chambers of a cooling system, flowing a coolant material from the first chamber into the second chamber, and contacting the fire suppressant gas with the coolant material to cool the fire suppressant gas.

Abstract: A fire suppressing gas generator includes a cylindrical housing comprising an array of discharge ports distributed generally uniformly therearound; a cylindrical filter disposed within the housing and spaced from the interior wall of the housing; a plurality of azide-based propellant grains inside the cylindrical filter; and at least one ignition device associated with the propellant grains. The propellant grains when ignited by the ignition device generate a fire suppressing gas which passes through the filter and out of the discharge ports of the cylindrical housing for delivery into a space.

Abstract: A device for compensating a filling level (34) in a pressure vessel (1) for an extinguishing agent, includes an extinguishing line (32), a propellant-gas line (37) supplied with propellant gas (31), and an adapter (3) on a threaded socket of the pressure vessel (1). A compensation tank (30) is in communication with the pressure vessel and a shut-off member (9) is arranged between the compensation tank (30) and the pressure vessel (1). The shut-off member is closed automatically to isolate the compensation tank from the pressure vessel when a propellant is applied to the pressure vessel so that the extinguishing agent can be stored without pressure in the extinguishing-agent vessel and can be monitored using a simple device.