Abstract: The invention proposes a method for localizing a ground fault of a fire protection system and also a fire alarm and/or extinguishing control panel comprising a plurality of connection points, a central unit and a ground fault identification module, wherein one or more subscribers can be connected to each connection point via a connection line. The method comprises, during or after identification of a ground fault by the ground fault identification module, the following steps: disconnecting the connection lines of one, more or all of the connection points by opening switching elements until at least no ground fault is identified by the ground fault identification module, and then connecting the connection lines successively for each connection point by closing the respective switching element.

Abstract: The present invention relates to a housing for a fire alarm and/or extinguishing control station having a housing body (20), which comprises an opening (22) on a front side (24), a housing door (30) for closing the opening (22) and a hinge arrangement (40), which is configured to allow opening and closing of the housing door (30). The housing door (30) has an outer face (32), which faces an observer when the housing body (20) is closed and an inner face (34) which is opposite the outer face (32), wherein the housing door (30) has an indicator and/or operating component (36) on the outer face (32).

Abstract: The invention relates to a method for producing a flange blank (1), comprising the following step: producing a base body (3), wherein the base body (3) comprises a fluid passage (5), a support section (7) having a first material thickness (M1) and a force-absorbing section (9) having a second material thickness (M2), the second material thickness (M2) is greater than the first material thickness (M1), and the force-absorbing section (9) is configured for the selective production of through-holes (15a-15h, 17a-17l) according to a first drilling pattern and/or a second drilling pattern. The invention further relates to a method for producing a flange (100). In addition, the invention relates to a flange blank (1).

Abstract: The present invention relates to a water spray valve set for a nozzle pipe system of a fire-extinguishing installation, having a water spray valve which has a fluid inlet for connection to a water supply, a fluid outlet for connection to the nozzle pipe system, and a closing body arranged between fluid inlet and fluid outlet, wherein the closing body is movable back and forth between a shut-off position and an opened-up position, wherein, in the shut-off position, the fluid inlet and fluid outlet are separated from one another and, in an opened-up position, said fluid inlet and fluid outlet are fluidically connected to one another, having a control line which is connected to a control pressure supply, and having at least one first control valve for controlling the control pressure in the control line, wherein the control line is operatively connected to the closing body such that the closing body is held in the shut-off position, or is in an opened-up position, in a manner dependent on an actuation of the con

Abstract: The invention concerns a method of checking the implementation of maintenance works in a fire extinguishing installation, wherein there is provided an identification (3) which contains a radio identification means, for example a transponder chip or an NFC tag which is fixedly connected to a unit (2) to be maintained so that the identification (3) cannot be non-destructively removed from the unit to be maintained, wherein the identification (3) contains data of the unit (2) to be maintained and wherein the unit to be maintained is part of the fire extinguishing installation and has to be uninstalled for maintenance, wherein there is provided a reading unit (8) with which the identification of the unit (2) to be maintained and the data thereof are read and wherein the identification (3) is arranged concealed or shielded on the unit (2) to be maintained in such a way that the data of the identification cannot be read with the reading unit (8) when the unit (2) to be maintained is in the non-uninstalled state.

Abstract: An unmanned vehicle for initiating a fire extinguishing action, the vehicle having: a vehicle sensor unit for detecting a fire parameter KF of a vehicle monitoring region, a vehicle communication unit for receiving an instruction signal SI representing a detected fire, a target location and/or a target region, and a navigation control unit for navigating the vehicle to the target location based on the instruction signal SI. The vehicle is: configured for detecting the fire parameter KF in the form of a verification fire parameter KV of the fire detector monitoring region at the target location by the vehicle sensor unit, configured for determining a verification fire status ZV by evaluating the verification fire parameter KV, and designed and/or configured for initiating a fire extinguishing action if the verification fire status ZV was determined. A system with such a vehicle and a corresponding method are also provided.

Abstract: A valve, having a valve housing which has a fluid inlet chamber and a fluid outlet chamber, having a valve seat which is arranged between the fluid inlet chamber and the fluid outlet chamber, and having a closure body which is movable back and forth between a release position and a blocking position. The closure body abuts against the valve seat in a fluid-tight manner in the blocking position, and wherein the fluid inlet chamber and the fluid outlet chamber are connected to one another in a fluid-conducting manner in the release position. The valve seat and the closure body each have a sealing surface, which are opposite one another in the blocking state, and an elastically deformable sealing element which is arranged between the sealing surfaces in the blocking state and which completely stretches over one of the sealing surfaces.

Abstract: The invention relates to an alarm valve station (1), in particular a wet alarm valve station, of a fire extinguishing system (100), having an alarm valve (3) with an extinguishing fluid inlet (5) and an extinguishing fluid outlet (7), wherein the alarm valve (3) has a closing body that can be moved back and forth between a blocking state and a release state, wherein the fluid inlet chamber and the fluid outlet chamber are separated from one another in the blocking state and communicate with one another fluidically in the release state, an alarm triggering device (9) for triggering a fire alarm, which is connected with the alarm valve (3), and a delay container (11a, 11b) in order to delay triggering of the fire alarm, wherein the alarm valve (3) is fluidically connected with a fluid inlet (13) of the delay container, and a fluid outlet (15a-15c) of the delay container (11a, 11b) is fluidically connected with the alarm triggering device (9).

Abstract: A protective cover for a fire protection sprinkler includes a pair of sidewalls and an orthogonal wall structure connected to an upper edge of each of the pair of sidewalls. The orthogonal wall structure including a slot therein that opens along an edge of the orthogonal wall structure in alignment with an opening between the pair of sidewalls. The slot including a pair of side edges including a pair of opposing arcuate regions adapted to engage a deflector mounting boss of a fire protection sprinkler. An arcuate sidewall extends from the orthogonal wall structure and an upper wall extending inward from an upper edge of the arcuate sidewall and opposing the orthogonal wall structure to define a cavity that is adapted for receiving a deflector of a fire protection sprinkler.

Abstract: The present invention relates to a protective cap for an extinguishing nozzle, in particular a sprinkler nozzle, which has at least a nozzle main body with a nozzle outlet, with a cap main body, and a cap neck which is arranged on the cap main body, the cap main body having a force transmission section for bearing in sections against a nozzle main body of the extinguishing nozzle in a force-transmitting, preferably positively locking manner, and the protective cap, in particular the cap neck, being set up to mechanically shield the nozzle outlet of the extinguishing nozzle, the cap main body having an outer contour with one or more action surfaces for attaching a tool.

Abstract: The invention relates to a sprinkler housing (50) for a sprinkler (1), in particular for operating pressures above 16 bar, comprising a fluid channel (12) which is provided in the sprinkler housing (50) and has a fluid inlet (10) and at least one fluid outlet (8), a closure element (4), which is movable from a blocking position into a release position in a release direction (A), wherein the closure element (4) closes the fluid channel (12) in the blocking position and releases same in the release position, a sealing element (5), which is mounted on the closure element (4) and is designed to close the fluid channel (12) in a fluid-tight manner in the blocking position, wherein a protective chamber in which the sealing element (5) is arranged is defined between the closure element (4) and the recess (17) in the release position.

Abstract: A sprinkler (1), includes a sprinkler housing, a fluid channel which is provided in the sprinkler housing and has a fluid inlet (10) and at least one fluid outlet (8), a closure element (4), which is movable from a blocking position into a release position, wherein the closure element (4) closes the fluid channel in the blocking position and releases same in the release position, a thermally activatable triggering element (25), which keeps the closure element (4) in the blocking position until thermally activated, and a sealing element (5), which is arranged between the sprinkler housing and the closure element (4) and is designed to close the fluid channel in a fluid-tight manner in the blocking position. A sealing element (5) is radially and axially compressed in the blocking position in order to apply the sealing effect.

Abstract: The invention relates to a condition monitoring unit for a fire detection and/or extinguishing control unit. The condition monitoring unit comprises at least one current circuit connection for connecting the condition monitoring unit to at least one current circuit, wherein the current circuit has at least one participant which detects an event. The condition monitoring unit further comprises a measuring device for measuring values of currents and/or voltages at the current circuit connection and an analysis unit in which one or more threshold values can be stored. The analysis unit is designed to detect, in an operating mode at least, an event in which values of currents and/or voltages measured by the measuring device exceed or fall below the at least threshold value.

Abstract: The invention relates to a method for testing a fire protection component (1) of a fire protection structure (11). The method comprises the steps (a) providing an unmanned vehicle (2), (b) navigating the unmanned vehicle (2) by means of a navigation control unit (3) of the unmanned vehicle (2) to the fire protection component (1), at which a test is to be performed, and (c) performing the test on the fire protection component (1) by means of a testing device (20) of the unmanned vehicle (2). The invention furthermore relates to an unmanned vehicle (2) for testing a fire protection component (1) of a fire protection structure (11) as well as a fire protection system comprising such an unmanned vehicle for carrying out the method according to the invention.

Abstract: The invention relates to a system (20) for determining a verified fire status, having: an unmanned vehicle (2) comprising a vehicle sensor unit (6) for capturing a fire parameter KF, a central unit (22) for transmitting an instruction signal SI to the vehicle, and a stationary fire detector (14) comprising a fire detector sensor unit (28) for capturing a reference fire parameter KR of a fire detector monitoring area (12), wherein the fire detector (14) is designed for determining a reference fire status ZR and for transmitting a corresponding fire detector signal SB to the central unit (22), wherein the vehicle (2) is designed for navigating to the target location (16) on the basis of the transmitted instruction signal SI, for capturing the fire parameter KF as a verification fire parameter KV of the fire detector monitoring area (12) at the target location (16), and for determining a corresponding verification fire status ZV, and wherein the vehicle (2) is designed for transmitting a corresponding verificati

Abstract: A modular multi-sensor fire detector (300) that has an evaluation unit and a plurality of sensor heads (100) which are arranged locally at a distance from the evaluation unit and are connected to the evaluation unit in a signal-conducting manner, wherein the evaluation unit (200) can be connected in a signal-conducting manner to an alarm signal receiving device (301) which is locally at a distance.

Abstract: The invention relates to a method for assisting with the commissioning and/or maintenance of a fire alarm and/or extinguishing control center (12) comprising a central control unit (30), a plurality of functional modules (14a-14g) and at least one data interface (36). A display unit (40) is connected to the central control unit (30) by means of the data interface (36), and an information mode which can be activated and deactivated is respectively assigned to each of the functional modules (14a-14g). Information is respectively stored for each of the functional modules (14a-14g), wherein, by activating the information mode of a functional module (14a-14g), the stored information relating to that functional module (14a-14g) whose information mode has been activated is displayed using the display unit (40) or tablet computer (44). The invention also relates to a system for carrying out the method and to a functional module.

Abstract: A fire extinguishing system valve (1) comprising a housing (2, 3) which has a fluid inlet chamber (8), a fluid outlet chamber (9) and a closing body (4a) reciprocable between a blocking state and a release state, wherein the fluid inlet chamber (8) and the fluid outlet chamber (9) are separated from each other in the blocking state and communicate with each other in fluid-conducting relationship in the release state. At least one pressure sensor (6) is integrated in the housing (2, 3).

Abstract: An alarm valve station includes a fire extinguishing system valve (1) having a housing (2, 3) which has a fluid inlet chamber (8), a fluid outlet chamber (9) and a closing body (4a) reciprocable between a blocking state and a release state, wherein the fluid inlet chamber (8) and the fluid outlet chamber (9) are separated from each other in the blocking state and communicate with each other in fluid-conducting relationship in the release state, one or more sensors, and an electronic evaluation unit (50) which is integrated in the housing (2, 3), arranged externally on the housing or arranged in the proximity of the fire extinguishing system valve (1), wherein the evaluation unit (50) is connected in signal-conducting relationship to the sensor or sensors for receiving data, is adapted for data processing into: state information and/or operating instructions and is adapted to transmit the state information and/or operating instructions to a display unit (40).

Abstract: A method is provided for cleaning an optical entry window (1) of a fire detector (2), wherein an intermittent gas stream is discharged from at least one gas exit opening (7) onto the surface of the optical entry window (1) of the fire detector (2), wherein the intermittent gas stream having a number of pressure pulses (14) is discharged onto the optical entry window (1), and to an apparatus for cleaning an optical entry window. The method has the advantage that the optical entry window of a fire detector can be cleaned from contamination intermittently and corresponding to the intensity of contamination with a matched and low consumption of gas.