Abstract: A plug-in connection system for fluid-conducting components of fire extinguishing systems that has a first component having an outer peripheral surface and a first recess in the peripheral surface, and a second component having an inner peripheral surface and a second recess in the inner peripheral surface, wherein the first and the second component can be plugged into one another such that the recesses lie opposite one another and define a locking element channel. A locking element which can be inserted into the locking element channel until an interlock position is reached and at least part of which engages in both recesses in the interlock position. A locking element safety device is provided for reversibly releasably securing the locking element on the first and/or second component.

Abstract: The invention relates to an explosion-protected housing for means for transmitting and/or receiving electromagnetic radiation (2, 2a, 2b). The housing comprises a housing body (1) that is configured to receive such transmission and/or reception means (2, 2a, 2b) and a window element (5) having a first side (7) that faces the housing interior and an opposite second side (6) that faces away from the housing interior, wherein the window element (5) transmits electromagnetic radiation. The housing body (1) has a flanging (11) on the second side (6) of the window element (5), said flanging pressing the window element (5) in the direction of a seat (13) that is formed in the interior of the housing such that the housing is formed as a pressure-resistant housing and/or as a dust-tight housing.

Abstract: The invention concerns a pneumatic control device (1) for multi-zone fire extinguishing installations, comprising a control pressure inlet port (25) for connection to a control pressure source (105), in particular a pressurised gas container, a number (m) of first control pressure outlet ports (17) for connection to a corresponding number of extinguishing agent containers (107), a number (n) of second control pressure outlet ports (19) for connection to a corresponding number of zone valves (111), and a plurality of function modules (7, 9).

Abstract: The present invention relates to a subscriber, in particular a module or device for monitoring a function and/or status and/or for transmitting an alarm, having: a first interface for communicating with a control panel, preferably a fire alarm and/or extinguishing control panel, a data memory for storing configuration data relating to the subscriber comprising at least an identifier of the subscriber for identifying the subscriber with respect to the control panel, a second interface for inputting configuration data to the data memory. The second interface has an NFC interface for communicating with a mobile write and/or read device The NFC interface is configured to receive at least the identifier of the subscriber from the mobile write and/or read device and to transmit it to the data memory. The invention improves known subscribers to the effect that a configuration which is less susceptible to faults and is simpler at the same time is possible.

Abstract: The invention relates to a fire-extinguishing facility comprising an extinguishing fluid line for transporting an extinguishing fluid, a plurality of sprinklers connected to the extinguishing fluid line in a fluid-guiding manner which are closed in a standby state and open in an extinguishing state in order to supply the extinguishing fluid, and a flow-measuring device associated with the extinguishing fluid line. According to the invention, the flow-measuring device is designed to approximately detect a volume flow of the extinguishing fluid transported in the extinguishing fluid line, and an evaluation unit is provided and designed to assign a number of open sprinklers to the approximately detected volume flow.

Abstract: A fire extinguishing system valve (1), in particular wet alarm valve, dry alarm valve or spray water valve, having a housing (3) which has a fluid inlet chamber (9), a fluid outlet chamber (11) and a closing body (13) which can move back and forth between a blocking state and a release state, wherein the fluid inlet chamber (9) and the fluid outlet chamber (11) communicate directly with one another in a fluid-conducting manner in the release state, and the closing body (13) prevents the direct communication between the fluid inlet chamber (9) and the fluid outlet chamber (11) in the blocking state. The housing (3) has a dedicated discharge duct (30) which has at least one inlet (30a, b) connected to the fluid outlet chamber (11) and an outlet (30c) leading out of the housing (3) of the fire extinguishing system valve (1), and which is integrated into the housing (3).

Abstract: The invention relates to an alarm valve station for a fire alarm system, having an alarm valve with an extinguishing fluid inlet and an extinguishing fluid outlet, wherein the alarm valve is set up for selectively releasing or blocking the extinguishing fluid flow between the extinguishing fluid inlet and the extinguishing fluid outlet, having a pressure sensor which is in a fluid-communication with the alarm valve and which is configured to detect a change in pressure and for converting this into an electrical alarm signal, and having an alarm delay device for delaying the alarm signal. It is proposed according to the invention that the alarm delay device is designed as an electrical alarm delay device and is connected in signal-communication with the pressure sensor.

Abstract: The invention relates to a quick-opening valve for a pressurized extinguishing fluid vessel, having an extinguishing fluid inlet (4), an extinguishing fluid outlet (5), a flow chamber which extends from the extinguishing fluid inlet (4) to the extinguishing fluid outlet (5), a valve piston (12), a valve seat (10), wherein the valve piston is movable back and forth between an opened-up position and a shut-off position such that the valve piston (12) and the valve seat (10), in the shut-off position, bear against one another in fluid-tight fashion and, in the opened-up position, are spaced apart from one another such that the extinguishing fluid inlet (4) and the extinguishing fluid outlet (5) are fluidically connected to one another. It is proposed according to the invention that the extinguishing fluid inlet (4) and the extinguishing fluid outlet (5) are oriented substantially parallel to one another.

Abstract: A plug-in connection system for fluid-conducting components of fire extinguishing systems that has a first component having an outer peripheral surface and a first recess in the peripheral surface, and a second component having an inner peripheral surface and a second recess in the inner peripheral surface, wherein the first and the second component can be plugged into one another such that the recesses lie opposite one another and define a locking element channel. A locking element which can be inserted into the locking element channel until an interlock position is reached and at least part of which engages in both recesses in the interlock position. A locking element safety device is provided for reversibly releasably securing the locking element on the first and/or second component.

Abstract: A fire-extinguishing-system valve (2) having a housing (4), having a fluid-entry chamber (26) provided in the housing (4), having a fluid-exit chamber (24) provided in the housing (4), and having a closing body (28) which can be moved back and forth between a blocking state (32) and a release state (34) and, in the blocking state (32) prevents direct fluid flow between the fluid-entry chamber (26) and the fluid-exit chamber (24) and, in the release position (34), connects the fluid-entry chamber (26) to the fluid-exit chamber (24) directly for fluid-conducting action. The fire-extinguishing-system valve (2) has at least one sensor device (18) for directly monitoring the position of the closing body (28).

Abstract: The invention relates to an adapter (1) for connecting an extinguishing-agent container (105) to a pipeline connection (103) of a fire-extinguishing system (100) in a fluid-conducting manner, having a first connector (5a), which is configured to be connected to a correspondingly configured connection (107) of the extinguishing-agent container (105), and a second connector (5b), which is configured to be connected to a corresponding pipeline connection (103). In particular, the adapter has a rigid pipe coupling (3) that is variable in length and extends along a longitudinal axis (L), wherein the first connector (5a) and the second connector (5b) are each attached in an articulated manner to the pipe coupling (3).

Abstract: The invention relates to a control system (10) of a fire-extinguishing installation, having at least one control line (11) for controlling a controlling procedure of the fire-extinguishing installation, wherein the control line (11) in a passive operation is unpressurized and the control line (11) in a control operation is impinged with a control pressure, and a safety device (12), fluidically connected to the control line (11), having a pressure equalization chamber (13) in which a holding element (3) and a movable closure element (2) are disposed.

Abstract: The invention relates to an alarm valve station (1) for a fire alarm system (100), having an alarm valve (3) with an extinguishing fluid inlet (5) and an extinguishing fluid outlet (7), wherein the alarm valve (3) is set up for selectively releasing or blocking the extinguishing fluid flow between the extinguishing fluid inlet (5) and the extinguishing fluid outlet (7), having a pressure sensor (11) which is in a fluid-communication with the alarm valve (3) and which is configured to detect a change in pressure and for converting this into an electrical alarm signal (13), and having an alarm delay device (15) for delaying the alarm signal. It is proposed according to the invention that the alarm delay device (15) is designed as an electrical alarm delay device (15) and is connected in signal-communication with the pressure sensor (11).

Abstract: The invention concerns a fire extinguishing system valve (1) comprising a housing (2), a fluid inlet chamber (11) in the housing (2), a fluid outlet chamber (13) in the housing (2), and a closing body (9) reciprocable between a blocking state and a release state and which in the blocking state prevents a direct flow of fluid between the fluid inlet chamber (11) and the fluid outlet chamber (13) and in the release state connects the fluid inlet chamber (11) directly in fluid-conducting relationship to the fluid outlet chamber (13). According to the invention the fire extinguishing system valve (1) has at least one manometer (15, 17) which is operatively connected to the fluid inlet chamber (11) or the fluid outlet chamber (13) and which is mounted to the housing (2), and a venting device (21) integrated into the housing (2) for the at least one manometer (15, 17).

Abstract: The invention concerns a dry alarm valve station of a fire extinguishing installation. According to the invention it is proposed that the dry alarm valve station includes an alarm valve, an alarm line connected to the alarm valve, an alarm alert device, preferably with an alarm pressure switch, which is connected to the alarm line and is configured to trigger an alarm signal when there is a predetermined fluid pressure in the alarm line, and a pressure-operated valve which is interposed between the alarm alert device and the alarm valve, is controlled by a control chamber, and is configured to block the alarm line as long as there is the predetermined control pressure in the control chamber and to open it when the pressure falls below the predetermined control pressure in the control chamber.

Abstract: The invention relates to a device (1) and a corresponding method for monitoring a two-wire line (2), in particular a two-wire line (2) of a fire protection system. The device (1) comprises a passive terminating component (10) for terminating the two-wire line (2), wherein the passive terminating component has a chargeable energy storage (12), a constant current source (20) for providing a measuring current (I1) to the passive terminating component, a voltage detection unit (30) for detecting a voltage curve (V1) at output terminals (4, 6) of the two-wire line (2), a control unit (40) for controlling the constant current source (12) and for evaluating the detected voltage curve, the control unit (40) being configured to separately determine a series resistance (RL) and a parallel resistance (PS) of the two-wire line (2).

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