Minimax Viking Research & Development GmbH

The invention relates to a firefighting mist cannon ( 1 ) having a firefighting agent connection ( 20 ) for connecting to a pressurized firefighting agent supply, a housing ( 7 ) that can be pivoted about a vertical axis (Z) and a horizontal axis (Y) relative to the firefighting agent connection ( 20 ) and having a first, inlet-side housing opening ( 19 ) and a second, outlet-side housing opening ( 22 ), a flow generator arranged in the housing ( 7 ), which is designed to provide an air flow (L) from the first housing opening ( 19 ) in the direction of the second housing opening ( 22 ), and a firefighting nozzle arrangement ( 25 ) associated to the second housing opening ( 22 ), fluidically connected to the firefighting agent connection ( 20 ) and designed to output firefighting agent in such a way that the firefighting agent is captured by the air flow (L). It is proposed for the firefighting nozzle arrangement ( 25 ) to have at least one central tube ( 27 ), which is arranged within the housing ( 7 ) and oriented in an output direction (W), and which is fluidically connected to a horizontally and vertically pivotable distributor device ( 37 ) by means of a supply line section ( 44 ), wherein the supply line section ( 44 ) is designed with a harmonic curvature.

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.

The current disclosure describes car parking garages, water mist fire protection systems for car parking garages, methods and water mist sprinklers therefor, the car parking garage system ( 10 ) comprising a floor deck ( 50 ) and a ceiling deck ( 51 ) spaced about a longitudinal axis (A) extending parallel to the ceiling deck ( 51 ), defining an effective height range (H 1 ) between the floor deck ( 50 ) and the ceiling ( 51 ) deck in a direction perpendicular to the longitudinal axis (A); and a fire protection system including a supply pipe system ( 30 ) having a parallel portion ( 31 ) disposed parallel to the longitudinal axis (A); and at least one water mist sprinkler ( 100 ) coupled to the parallel portion ( 31 ) of the supply pipe system ( 30 ), the at least one water mist sprinkler ( 100 ) including a frame body ( 110 ) having an inlet ( 111 ) for receipt of an extinguishing fluid from the supply pipe system ( 30 ), an outlet ( 113 ) with a passageway ( 112 ) extending between the inlet ( 111 ) and the outlet ( 113 ) to define a discharge coefficient of a nominal metric K-factor of below 32, a seal assembly ( 114 ) and a heat-responsive trigger ( 115 ) to support the seal assembly ( 114 ) in the outlet ( 113 ); and a deflector ( 120 ) coupled to the frame body ( 110 ) and spaced from the outlet ( 113 ) for distribution of the extinguishing fluid; wherein the effective height range (H 1 ) is up to 4 meters.

A dry fire protection sprinkler assembly. The sprinkler assembly includes an elongate tubular outer housing having a first end and a second end opposite the first end. The second end of the housing defines a fluid discharge end of the sprinkler assembly having an outlet opening. A fluid deflection member is affixed to the housing at a preferably fixed distance from the outlet opening. The sprinkler assembly and the fluid deflection member define an unencumbered fluid flow path for a column of fluid discharge from the outlet opening. The fluid deflection member includes at least one tab to act on the unencumbered column of fluid discharge.

A method and device for protecting and installing a fire protection sprinkler assembly having a thermally responsive trigger. The method includes shielding and torqueing a fire protection sprinkler with a protective device having a torque assist portion. The protective device includes a first and second member strapped about the sprinkler assembly. Each of the members of the protective device has a first lateral end and a second lateral end disposed about the thermally responsive trigger. At least one of members has a concave segment and a convex segment formed between the first lateral end and the second lateral end. The convex and concave segments define therebetween an external torque assist surface of the protective device that can be used to manually torque and install the sprinkler assembly.

An apparatus and method directed to aspirated-type high-expansion foam generation having a nozzle manifold configured to receive a foam solution and at least one nozzle assembly. The generator includes a foam generator assembly disposed adjacent the nozzle manifold. The foam generator has a body portion having a first foam generating portion and a second foam generating portion that is connected to the first foam generating portion. The generator is configured with a main header of the nozzle manifold disposed orthogonal to at least one sub-header; less than six nozzle assemblies; a ratio of a diameter of an inlet of a respective nozzle to a distance from an inner wall surface of the header to the inlet of the respective nozzle is 0.8 or less; and a nozzle with a nozzle insert with a crossover path defined by a non-sharp transition member and a cone shaped tip.

Pendent vertical sidewall fire protection sprinklers, systems and methods for the protection of windows are provided. The sprinklers include a fluid deflection member with an impact surface and an adjacent retention surface having one or more arcuate surface profiles to define a fluid throw channel. The sprinklers and their system installation provide for a maximum sprinkler-to-sprinkler spacing that ranges from over eight feet to fifteen feet (8+ ft. to 15 ft.).

The invention relates to a spray mist nozzle, in particular an open high-pressure spray mist nozzle for firefighting systems, having a housing which is configured with an extinguishing fluid inlet and is configured with multiple recesses for receiving an exchangeable nozzle insert, such a nozzle insert being inserted into one, multiple/plural or all the recesses. The nozzle insert has a main body with a longitudinal axis that has in the longitudinal axis a spray mist outlet for the extinguishing fluid. An exchangeable swirl body is arranged in the main body and is configured to swirl the extinguishing fluid prior to the latter exiting from the spray mist outlet. The spray mist outlet has a minimum opening cross section, and has a widened exit cross section downstream of the minimum opening cross section, wherein a transition from the minimum opening cross section to the exit cross section runs along a convexly curved surface.

Pendent vertical sidewall fire protection sprinklers, systems and methods for the protection of windows are provided. The sprinklers include a fluid deflection member with an impact surface and an adjacent retention surface having one or more arcuate surface profiles to define a fluid throw channel. The sprinklers and their system installation provide for a maximum sprinkler-to-sprinkler spacing that ranges from over eight feet to fifteen feet (8+ ft. to 15 ft.).

A fire suppression nozzle assembly includes a spray-type nozzle for spraying a fire suppression fluid. The spray-type nozzle includes a body portion defining a passage extending longitudinally through the body portion for conveying the fire suppression fluid. The spray-type nozzle also includes a deflector portion coupled to the body portion and configured to spray the fire suppression fluid onto a fire suppression target area using a radial spray pattern.