Abstract: An activation system includes a housing and a pulley mounted to the housing. The pulley is rotatable about an axis. An activation member is movable between a first position and a second position relative to the pulley to selectively couple to the pulley. When the activation member and the pulley are coupled, rotation of the pulley about the axis is restricted. A first tension member is operably coupled to the activation member and a first tension of the first tension member maintains the activation member in engagement with the pulley. At least one second tension member is wrapped about at least one of the pulley and the activation member and has a second tension acting on the at least one of the pulley and the activation member.

Abstract: A control head monitor including a single pole double throw (SPDT) switch, is disclosed. The SPDT switch includes a first terminal, a second terminal, a third terminal, and a switching element. The load element is connected between an input line and the second terminal. The input line of a detection circuit is connected to the first terminal and an output line of the detection circuit is connected to the third terminal. The switching element is adapted to connect the first terminal and the third terminal during an OFF mode. The switching element is adapted to connect the second terminal and the third terminal, to generate at least one of an output signal and an absence of an output signal.

Abstract: A method of making a fire extinguishing composition comprises: forming a first aqueous solution of potassium acetate, potassium formate, or a combination thereof; forming a second aqueous solution comprising a biocide, a bio-surfactant and an optional corrosion inhibitor; combining the first aqueous solution with the second aqueous solution to form a third aqueous solution and mixing until the third aqueous solution is transparent; adding a chelating agent to the transparent third aqueous solution and mixing to form a transparent fourth aqueous solution. A fire extinguishing composition made by the method is also disclosed.

Abstract: A manual activation system includes a pulley movable between an inactive position and an active position, a tension member wrapped about the pulley, the tension member having a tensile force acting on the pulley, and at least one arm rotatably mounted adjacent to the pulley. The at least one arm has a groove configured to cooperate with a portion of the pulley to selectively oppose the tensile force.

Abstract: A fire suppression and isolation system includes an ejection nozzle, a dispersion nozzle, and a valve assembly. The ejection nozzle is positioned between a non-hazard volume and a hazard volume. The dispersion nozzle is spaced apart from the ejection nozzle and is disposed within the hazard volume. The valve assembly is arranged to control a release of a suppression medium from a container to the ejection nozzle and the dispersion nozzle, responsive to a thermal event, such that the suppression medium that is ejected from the ejection nozzle defines a fluid barrier that is disposed between the non-hazard volume and the hazard volume.

Abstract: Valve assemblies are described having a valve positioner, a ball valve assembly configured to be actuated by the valve positioner between an open state and a closed state, an indicator configured to provide visual indication of the state of the ball valve assembly, and a positioning pin configured between the valve positioner and the ball valve assembly, the positioning pin arranged to prevent installation of the valve positioner to the ball valve assembly in all but one orientation and to ensure installation in only one orientation.

Abstract: A fire suppression and isolation system includes an ejection nozzle, a dispersion nozzle, and a valve assembly. The ejection nozzle is positioned between a non-hazard volume and a hazard volume. The dispersion nozzle is spaced apart from the ejection nozzle and is disposed within the hazard volume. The valve assembly is arranged to control a release of a suppression medium from a container to the ejection nozzle and the dispersion nozzle, responsive to a thermal event, such that the suppression medium that is ejected from the ejection nozzle defines a fluid barrier that is disposed between the non-hazard volume and the hazard volume.

Abstract: A fire suppression system has a tank unit (40, 42, 44, 46). A tank body has a first port and an interior for storing at least one of fire suppressant and driver gas. A discharge assembly is mounted to the first port and has a discharge valve (50, 52) and a first monitoring switch or sensor (230 240) having a normally closed output (532) and a normally open output (534). A first monitoring system (100) is coupled to one of the normally closed output and the normally open output. A second monitoring system (340) is coupled to the other of the normally closed output and the normally open output.

Abstract: A fire suppressant module according to one example includes a suppressant tank having a body and a base, a counterweight scale disposed in the base, and a data module comprising at least one of a display configured to display a weight of the suppressant tank and processor and a transmitter configured to communicate the weight of the suppressant tank.

Abstract: A nozzle assembly for a fire suppression system includes a body having an inlet end for receiving a flow of fire extinguishing agent from the fire suppression system at an inlet pressure and a nozzle portion extending from the body. The nozzle portion includes an interior cavity having an outlet end, a center body arranged within the interior cavity adjacent the outlet end, and a plurality of exit orifices formed in an outer wall of the nozzle portion, in communication with the interior cavity, for vectoring the flow of fire extinguishing agent exiting therefrom and to reduce a noise level of the nozzle assembly. At least one perforated filter member is positioned upstream from the plurality of exit orifices formed in the nozzle portion, for reducing the inlet pressure of the flow of fire extinguishing agent.

Abstract: A manual activation system includes a housing and a pulley arranged within the housing. The pulley is movable between an inactive position and an active position. A tension member is wrapped about the pulley and has a tensile force acting on the pulley. At least one link arm is rotatably mounted within the housing. The at least one link arm is operably coupled to the pulley to selectively oppose the tensile force acting on the pulley.

Abstract: A selector valve for a fire suppression system includes a pneumatic fluid inlet connecting to an inlet of a first pressure solenoid and an inlet of a second pressure solenoid. An inlet of a first vent solenoid in the selector valve is connected to an outlet of the first pressure solenoid, and an inlet of a second vent solenoid in the selector valve is connected to an outlet of the second pressure solenoid. A first selector valve outlet is connected to the outlet of the first pressure solenoid and a second selector valve outlet connected to the outlet of the second pressure solenoid.

Abstract: A cartridge replacement aid and a fire suppression system for incorporating the same are provided. The cartridge replacement aid helps to ensure that a disposable cartridge is removed and replaced after actuation. The cartridge replacement aid includes an aperture configured to allow a cartridge to pass through the cartridge replacement aid and connect to a valve, and a protrusion configured to perpendicularly extend from the cartridge replacement aid. The protrusion of the cartridge replacement aid, in certain instances, is configured to break when the fire suppression system is actuated. The protrusion of the cartridge replacement aid, in certain instances, is configured to prevent the cam of the fire suppression system from being reset without removing the cartridge replacement aid.

Abstract: A method of suppressing a kitchen fire includes detecting a fire and identifying a location of the fire with a tracking system, aiming a nozzle at the location, and releasing an agent through the nozzle at the location.

Abstract: A method of checking a pressure of an agent cylinder that includes coupling a gauge assembly to an outlet of a gauge tool, the gauge assembly having a pressure gauge and a vent valve movable between an open position and a closed position. The method further includes moving the vent valve towards the closed position; attaching a fill adapter defining an inlet of the gauge tool to a valve port of an agent cylinder; and actuating a drive member of the gauge tool in a first direction to move a valve member of the gauge tool from a first position towards a second position to facilitate a fluid flow between the inlet and the outlet of the gauge tool.

Abstract: A nozzle assembly for a fire suppression system includes a body having an inlet end for receiving a flow of fire extinguishing agent from the fire suppression system at an inlet pressure and a nozzle portion extending from the body. The nozzle portion includes an interior cavity having an outlet end, a center body arranged within the interior cavity adjacent the outlet end, and a plurality of exit orifices formed in an outer wall of the nozzle portion, in communication with the interior cavity, for vectoring the flow of fire extinguishing agent exiting therefrom and to reduce a noise level of the nozzle assembly. At least one perforated filter member is positioned upstream from the plurality of exit orifices formed in the nozzle portion, for reducing the inlet pressure of the flow of fire extinguishing agent.

Abstract: A cartridge monitoring assembly for detecting a weight of a cartridge, a fire suppression system for incorporating the same, and a method of detecting a weight of a cartridge installed within a fire suppression system are provided. The cartridge monitoring assembly includes a support bracket for securing a cartridge containing a pressurized gas to the cartridge monitoring assembly, and at least one weight sensor for detecting the weight of the cartridge. The cartridge monitoring assembly enables the comparison of the weight of a cartridge installed within the fire suppression system with a previously calculated full weight value to determine a weight variance of the cartridge installed within the fire suppression system.

Abstract: In a system for measuring a fire suppressant or fire suppression propellant quantity, the system comprising: a base (102); a top plate (106) positioned to support a tank (22) of said fire suppressant or fire suppression propellant; a plurality of springs (112) positioned between the top plate and the base to support the top plate atop the base, the plurality of springs positioned to support the top plate along a range of motion between an extended condition and a retracted condition; a first magnetic member (142) mounted to the base; a second magnetic member (140) mounted to the top plate so that a spacing between the first magnetic member and the second magnetic member decreases as the top plate moves from the extended condition to the retracted condition. At least one of the first magnetic member and the second magnetic member is a permanent magnet. A magnetic field sensor (160) is positioned to detect changes in a magnetic field associated with changes in said spacing.

Abstract: A cartridge replacement aid and a fire suppression system for incorporating the same are provided. The cartridge replacement aid helps to ensure that a disposable cartridge is removed and replaced after actuation. The cartridge replacement aid includes an aperture configured to allow a cartridge to pass through the cartridge replacement aid and connect to a valve, and a protrusion configured to perpendicularly extend from the cartridge replacement aid. The protrusion of the cartridge replacement aid, in certain instances, is configured to break when the fire suppression system is actuated. The protrusion of the cartridge replacement aid, in certain instances, is configured to prevent the cam of the fire suppression system from being reset without removing the cartridge replacement aid.

Abstract: A selector valve for a fire suppression system includes a pneumatic fluid inlet connecting to an inlet of a first pressure solenoid and an inlet of a second pressure solenoid. An inlet of a first vent solenoid in the selector valve is connected to an outlet of the first pressure solenoid, and an inlet of a second vent solenoid in the selector valve is connected to an outlet of the second pressure solenoid. A first selector valve outlet is connected to the outlet of the first pressure solenoid and a second selector valve outlet connected to the outlet of the second pressure solenoid.