Minimax Viking Research & Development GmbH

The invention relates to a method for producing a number of pipes ( 100 ) with a predetermined pipe diameter. The method includes feeding multiple pipe parts ( 101, 102 ) with the predetermined pipe diameter to a welding station ( 53 ), aligning in each case a first pipe part ( 101 ) and a second pipe part ( 102 ) coaxially with respect to one another and axially adjacent to one another, welding the pipe parts ( 101, 102 ) by means of a fully encircling weld seam ( 109 ) to form a pipe run ( 104 ), conveying the pipe run ( 104 ) to a cutting station ( 57 ) in a machine direction (A) downstream of the welding station ( 53 ), and cutting off the number of pipes ( 100 ) in a respectively designated length from the pipe run ( 104 ).

Automatic fire protection sprinkler assemblies having a trigger assembly with a thermally responsive element and a yoke that seats and facilitates heat flow over the thermally responsive element. The yoke includes an elongate support member with a central region centered between two end portions with linear portions extending between the central region and the end portions. The yoke defines a heat impact region in which the end of the trigger assembly is received and seated. The yoke also provides a lateral access to define a fluid flow path in fluid communication with the heat impact region to facilitate heat flow over the thermally responsive element.

Fire protection systems and methods having piping interconnections for connecting afire protection device to a fluid source. The piping interconnections include a branch connector connected to a pipe header. The branch connector includes a tubular member and an internal annular seal member housed in an internal gasket chamber of the tubular member. The tubular member includes an internal stepless surface between a terminal end of the tubular member and the internal gasket chamber.

A floor nozzle assembly and systems and methods thereof for delivering a fire suppressant foam to a protected area. The nozzle assembly has a body and deflector in contact with one another to form a plurality of passageways through which a fire suppressant flows. The deflector has a deflector flange and a plurality of projecting members in contact with the body to form the passageways. The nozzle assembly has one or more of the following: i) a radial outer portion at each projecting member having a plurality of curved edges with at least two different curvatures; ii) each passageway is formed by parallel planar sidewalls; iii) the projecting members extend radially over a majority radial length of the deflector flange; and/or iv) the deflector flange has, with respect to a horizontal, a surface at an angle that is less than a support surface of the nozzle body.

The invention relates to a multi-area fire extinguishing system, having a control system, a number of fluid control lines that are configured to transmit a control pressure as a function of control commands of the control system, and a number of fluid-actuated area valves that are each in fluid communication with the control lines, wherein the area valves are configured to be actuated as a function of the received control commands. The invention proposes, in particular, a fluid-actuated area blocking apparatus which is operatively coupled to the fluid control lines and to the area valves and which is configured such that, when one or more area valves are actuated, said area blocking apparatus opens up those area valves and blocks all other area valves. The invention furthermore relates to a controller for a multi-area fire extinguishing system, to an area blocking apparatus for a fire extinguishing system, and to the use of same.

Differential-type dry pipe valves for fire protection systems are provided. The valve includes a body with a clapper assembly disposed in an internal passage of the valve body between an inlet and an outlet. The clapper assembly is movable between a closed position and an open position to respectively prevent and permit fluid flow through the passage from the inlet to the outlet. With the clapper assembly in the open position, an internal mechanism is positioned to stop the clapper moving to the closed position. The valve includes a resetting assembly having a knob exterior to the body. Translation of the knob toward the outlet moves the internal mechanism which permits the clapper assembly to move to the closed position.

Fluid control valve assemblies for use in fire protection sprinkler systems to control the flow of firefighting fluid to the system sprinklers. The assemblies include a pressure-operated fluid control valve having an internal fluid chamber in which fluid contained therein acts on an internal diaphragm to control the flow of fluid from an inlet to an outlet of the valve. An environment-responsive control device in fluid communication with the internal fluid chamber along a first fluid communication line controls the flow of fluid out of the fluid chamber to initiate actuation of the valve. A fluid-flow latch in fluid communication with the outlet of the valve along a second fluid communication line subsequently controls the simultaneous flow of fluid out of the fluid chamber and the actuation of the valve.

A system for monitoring a pipe network for a fire protection system having an evaluation unit with a communication device, and at least one sensor which is arranged on or within at least one pipe of a plurality of pipes of the pipe network and is in communicative signal connection with the communication device. The at least one sensor is configured to collect measurement data indicative of changes in a hydraulic condition of the at least one pipe and to transmit this measurement data to the communication device of the evaluation unit. The evaluation unit is configured to evaluate the measurement data based on assigning the at least one pipe to the specific pipe category in order to generate an evaluation data record indicative of the hydraulic condition of the at least one pipe.

Fire protection systems and methods having piping interconnections for connecting afire protection device to a fluid source. The piping interconnections include a branch connector connected to a pipe header. The branch connector includes a tubular member and an internal annular seal member housed in an internal gasket chamber of the tubular member. The tubular member includes an internal stepless surface between a terminal end of the tubular member and the internal gasket chamber.

A floor nozzle assembly and systems and methods thereof for delivering a fire suppressant foam to a protected area. The nozzle assembly has a body and deflector in contact with one another to form a plurality of passageways through which a fire suppressant flows. The deflector has a deflector flange and a plurality of projecting members in contact with the body to form the passageways. The nozzle assembly has one or more of the following: i) a radial outer portion at each projecting member having a plurality of curved edges with at least two different curvatures; ii) each passageway is formed by parallel planar sidewalls; iii) the projecting members extend radially over a majority radial length of the deflector flange; and/or iv) the deflector flange has, with respect to a horizontal, a surface at an angle that is less than a support surface of the nozzle body.