Abstract: Fire protection systems and methods are provided. The system can include a controller communicably coupled with a detector. The controller can receive an input signal from the detector. The detector can be disposed at a location of a space. The input signal can indicate an active hazard event. The controller can determine a speed and a direction of an airflow in the space. The controller can determine an offset for the active hazard event. The offset can be based on at least one of the speed and the direction of the airflow. The controller can provide an actuation command to a sprinkler based on the input signal received from the detector and based on the offset for the active hazard event.

Abstract: A fire suppression nozzle includes a first support plate, a conduit including an inlet and an outlet, and a baffle made of a porous material extending from the first support plate and at least partially surrounding the outlet to form an interior in fluid communication with the outlet and an end opening. The conduit is configured to receive an inert gas at the inlet and provide the inert gas to the interior of the baffle via the outlet such that the inert gas exits the outlet and passes at least partially through the baffle. The nozzle includes a sound absorbing member extending across the end opening to at least partially enclose the interior, and also includes a sound absorbing insert composed of a sound absorbing material and a second support plate arranged against an outer face of the sound absorbing insert and coupled to the first support plate.

Abstract: Fire suppression systems and methods are provided. The system can include an electronically activated sprinkler (EAS) interlock system to protect a target zone. The EAS interlock system can include a controller. The controller can be communicably coupled with a first detector and a second detector. The first detector can be disposed in an area outside the target zone. The second detector can be disposed inside the target zone. The controller can receive an input signal from the first detector indicating an event occurred prior to or in an absence of receipt of an input signal from the second detector. The controller can provide a hold command to at least temporarily inhibit a sprinkler inside the target zone from actuation based on receipt of the input signal from the first detector prior to or in the absence of receipt of the input signal from the second detector.

Abstract: A fire exposure protection sprinkler assembly includes a fluid supply line configured to provide fire exposure protection fluid and a fire exposure protection sprinkler. The fire exposure protection sprinkler includes a body coupled to the fluid supply line and configured to receive the fire exposure protection fluid, a sealing assembly configured to unseal in response to a fire such that fire exposure protection fluid may flow, a housing having a pair of legs arranged opposite the housing of each other and having an aperture, and a deflection assembly having a pair of guide pins coupled to a deflector and the housing and disposed within each of the apertures of the legs, wherein the deflection assembly is configured to extend from the housing, wherein the deflection assembly is configured to receive the flow of the fire exposure protection fluid while extending from the housing.

Abstract: A method of fighting a fire, the method includes aerating a firefighting foam composition to form an aerated firefighting foam; administering the aerated firefighting foam to a fire or applying the aerated firefighting foam to a surface of a volatile flammable liquid; wherein the firefighting foam composition includes a surfactant component comprising an anionic surfactant, a zwitterionic surfactant, optionally a nonionic surfactant, or a mixture of any two or more thereof; an aliphatic alcohol-based component comprising at least two compounds selected from C8-C14-aliphatic alcohols and ethoxylates of C10-C14-aliphatic alcohols having an average of no more than about 6 ethylene oxide units; and at least about 30 wt. % water.

Abstract: A nitrogen generation system includes a nitrogen generator and a bypass device. The nitrogen generator receives air and outputs nitrogen using the air along a first flow path to an outlet. The bypass device is coupled with an air source and the nitrogen generator. The bypass device controls flow of air from the air source to flow along the first path through the nitrogen generator or along a second path to the outlet based on a pressure condition.

Abstract: A rotational coupling including a bearing assembly including a first race rotatably coupled to a second race, wherein the first race is configured to receive a plurality of first fasteners to couple the first race and the bearing assembly to a fluid supply. The rotational coupling also including a connection flange coupled to the second race and configured to receive a plurality of second fasteners to couple the connection flange to the second race. The second race includes a first side facing the connection flange and a second side opposite the first side and facing the first race, wherein the second race includes at least one access aperture configured to enable access to the plurality of first fasteners from the first side to removably couple the bearing assembly to the fluid supply.

Abstract: A method of fighting a fire includes aerating a firefighting foam composition to form an aerated firefighting foam; administering the aerated firefighting foam to a fire or applying the aerated firefighting foam to a surface of a volatile flammable liquid; wherein: the firefighting foam composition includes a sugar component; a surfactant component comprising an anionic surfactant, a zwitterionic surfactant, or a mixture of any two or more thereof; a polysaccharide thickener comprising succinoglycan; and at least about 30 wt. % water.

Abstract: A corridor sprinkler includes a frame, a seal, a thermally-responsive trigger, and a deflector. The frame defines a passageway between an inlet and an outlet along a longitudinal axis, the passageway having a nominal K-factor greater than or equal to 8.0. The seal is coupled with the outlet to prevent fluid flow out of the passageway while the seal is in an unactuated state. The thermally-responsive trigger changes the seal from the unactuated state to an actuated state to allow fluid to flow out of the passageway. The deflector is coupled with the frame and distributes fluid received at the inlet at a pressure of between 8 psi and 250 psi and through the passageway to provide a coverage area of between 220 square feet and 400 square feet and a polygonal spray pattern with a long axis length of between 28 feet to 36 feet.

Abstract: Automatic fluid control assemblies and methods for fire protection include an arrangement of electrically operated control points, a valve body and a controller to operate the fluid control assembly. The automatic fluid control assembly has an inlet, an outlet and a valve body to control flow between the inlet and the outlet. An electric latch includes a first electrically operated control point and a second electrically operated control point in fluid communication with a control line to control the flow of fluid from the inlet to the valve body and outlet. The methods of fluid control include controlling a plurality of electrically operated control points to perform any one of: a leak test, a trip test, a flow test, a water delivery test, and a validation test of a non-trip condition and a trip condition.

Abstract: Antifreezes are provided for deployment in wet sprinkler systems located in cold environments. The antifreezes allow for the wet sprinkler system to be actuated under temperatures below 32° F. Wet sprinklers, sprinkler systems, methods of providing for the control, suppression and/or extinguishment of a fire that occur in a cold environment, and methods of preventing wet sprinklers from freezing also are provided. The sprinklers, sprinkler systems and methods can be used in residential, commercial and storage settings.

Abstract: A method of fighting a fire, the method includes aerating a firefighting foam composition to form an areated firefighting foam; administering the aerated firefighting foam to a fire or applying the aerated firefighting foam to a surface of a volatile flammable liquid; wherein: the firefighting foam composition includes a sugar component comprising a monosaccharide sugar, a sugar alcohol, or a combination thereof; a polysaccharide thickener; a surfactant component comprising an anionic surfactant, a zwitterionic surfactant or a mixture of any two or more thereof; a water-miscible organic solvent; and at least about 30 wt. % water.

Abstract: A method of fighting a fire includes aerating a firefighting foam composition to form an aerated firefighting foam; administering the aerated firefighting foam to a fire or applying the aerated firefighting foam to a surface of a volatile flammable liquid; wherein: the firefighting foam composition includes a sugar component that includes a monosaccharide sugar and/or a sugar alcohol; an anionic surfactant; a zwitterionic surfactant; an organic solvent including glycol ether and/or glycol solvent; a polysaccharide thickener; and at least about 40 wt. % water; wherein the composition is substantially free of any amine oxide or nonionic surfactants; and the composition is substantially free of fluorinated compounds.

Abstract: A fire suppression system includes a water supply, a foam concentrate supply, and a venturi-principle foam proportioner fluidly coupled to each of the water supply and the foam concentrate supply. The venturi-principle foam proportioner controls a ratio of water and foam concentrate within a low pressure chamber to form a water and foam solution flowing out of the venturi-principle foam proportioner. The system also includes a variable foam concentrate orifice fluidly coupling the foam concentrate line to the low pressure chamber. The variable foam concentrate orifice includes an actuator configured to adjust an orifice area of the variable foam concentrate orifice based on a temperature of the foam concentrate.

Abstract: A fire protection system includes a plurality of fluid distribution devices coupled to the fluid supply pipes to define four fluid distribution devices above a floor. The fluid distribution devices generate a spray pattern overlapping one another to define a rectangular fluid distribution area 2.5 ft. The rectangular area having a first pair of edges extending parallel to the fluid supply pipes and a second pair of edge extending perpendicular to the first edge. The fluid distribution devices are axially aligned above a corner of the rectangular area, the fluid distribution area defined by a grid of one square foot areas totaling an area no more than 12 ft.×8 ft., the rectangular area of fluid distribution having a total fluid density of at least 60 gpm/sq. ft., the rectangular area including a first zone of fluid distribution of a 4 ft.×4 ft. area.

Abstract: A system includes one or more memory devices having instructions stored thereon that, when executed by one or more processors, cause the one or more processors to perform operations. The operations include receiving sensor data from at least one sensor monitoring a fire suppression system, determining, based on the sensor data, a status of the fire suppression system, and providing a notification to a user device, the notification indicating the status of the fire suppression system.

Abstract: A dry sprinkler for a fire protection system having a configuration with one or more coupling arrangements for connection to a fluid supply piping of the system. The dry sprinkler structure further includes an inner surface and inner assembly to provide a preferred discharge performance. The dry sprinkler provides for a flow rate from the outlet of the sprinkler in accordance with the start pressure at the inlet of the sprinkler and the rated discharge coefficient, K factor, ranging between 16.8 GPM/PSI½ and 33.6 GPM/PSI½.

Abstract: At least one aspect is directed to a device to configure a fire sprinkler. The device can have an elongated member. The elongated member can have an open end, an opposing closed end, and a body extending laterally therebetween. The open end can receive a portion of a fire sprinkler. The closed end can have a main aperture. The main aperture can receive a portion of a ratcheting socket wrench drive. The closed end can have at least one surrounding aperture. The surrounding aperture can be positioned apart from the main aperture to define a solid partition therebetween. The solid partition can have non-uniform thickness between the main aperture and the at least one surrounding aperture.

Abstract: An aqueous fire-fighting foam concentrate includes a sugar component including a monosaccharide sugar, a sugar alcohol, or a combination thereof; a polysaccharide thickener; a surfactant component selected from an anionic surfactant and a zwitterionic surfactant, a water-miscible organic solvent; and at least about 30 wt. % water.

Abstract: A system includes an image capture device, a fire extinguisher, and one or more processors. The image capture device is to detect one or more images of a premise. The one or more processors are to receive an indication of a fire in the premise, process, responsive to receiving the indication of the fire, the one or more images to determine that the fire meets at least one criteria of being hazardous, and activate the fire extinguisher responsive to the determination that the fire meets the at least one criteria.