Abstract: A system includes a controller for monitoring a fill level of a container. The controller is configured to receive first vibrational response data relating to a vibrational response of the container in a first state, receive second vibrational response data relating to a vibrational response of the container in a second state, and use the first vibrational response data and the second vibrational response data to identify a change in fill level of the container between the first state and the second state.

Abstract: Systems and methods herein are directed to determining a dry sprinkler system. The methods can include receiving. via a data processing system, a plurality of inputs based on conditions at a plurality of locations of a dry sprinkler system configuration. The method can include determining, via the data processing system, a discharge time of a fire suppressing fluid to a sprinkler based on the plurality of inputs. The identified dry sprinkler system configuration can include a network of pipes having a dry portion. a wet portion fluidly coupled with a dry portion. or a fluid flow control valve separating the wet portion from the dry portion. The sprinkler can be fluidly coupled with the dry portion of the network of pipes. The sprinkler can receive the fire suppressing fluid from the wet portion of the network of pipes.

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: A fire suppression nozzle includes a first conduit including an inlet and an outlet, a second conduit coupled to the first and including a plurality of outlets spaced apart from a second plurality of outlets. The nozzle includes a first annular sound absorbing member positioned on a first side of the outlet and a second annular sound absorbing member positioned on a second side of the outlet wherein the first conduit provides inert gas to the second conduit. The inert gas exits the outlet in a first direction and a first portion of the inert gas is directed toward the first plurality of outlets in a second direction and a second portion is directed toward the second plurality of outlets in a third direction opposite the second direction, wherein the second and third directions are generally perpendicular to the first direction.

Abstract: A sprinkler system includes a sprinkler and a release assembly. The sprinkler includes a base defining an inlet and an outlet, at least one arm extending from the base, a deflector coupled with the at least one arm, a button that seals the outlet, and a bulb coupled with the button between the button and the deflector. The bulb includes a resistive trace made of an electrically conductive material to fracture the bulb responsive to an electrical current to release the button from the outlet. The release assembly is coupled with the sprinkler and provides the electrical current to the bulb to cause the bulb to fracture responsive to a fire condition.

Abstract: A corrosion monitoring device includes a sensor assembly and a detector circuit. The sensor assembly includes at least one sensor portion disposed in an interior of a pipe in a fire sprinkler system for sensing corrosion of a wall of the pipe. The detector circuit transmits an electrical signal through the at least one sensor portion, monitors an electrical characteristic of the at least one sensor portion based on the electrical signal, compares at least one of the monitored electrical characteristic and a change in the electrical characteristic of the at least one sensor portion to at least one of a predetermined value and a previously monitored electrical characteristic, determines a corrosion status indicative of at least one of a corrosion level and a rate of corrosion of the pipe wall based on the comparison, and outputs an indication of the corrosion status.

Abstract: A fire suppression nozzle assembly includes a nozzle having a first tube defining an axially extending passageway. The passageway includes a plurality of primary outlets disposed on a sidewall of the first tube. The nozzle also includes a second tube circumscribing the first tube to define a chamber. The primary outlets provide fluid communication between the passageway and the chamber. A sidewall of the second tube has a first set of radially facing secondary outlets axially offset from the primary outlets in a first direction and a second set of radially facing secondary outlets axially offset from the primary outlets in a second direction opposite the first direction. The nozzles disclosed herein are configured such that gas exiting a plurality of outlet holes is balanced.

Abstract: A fire suppression nozzle includes a first conduit including an inlet and an outlet, a second conduit coupled to the first and including a plurality of outlets spaced apart from a second plurality of outlets. The nozzle includes a first annular sound absorbing member positioned on a first side of the outlet and a second annular sound absorbing member positioned on a second side of the outlet wherein the first conduit provides inert gas to the second conduit. The inert gas exits the outlet in a first direction and a first portion of the inert gas is directed toward the first plurality of outlets in a second direction and a second portion is directed toward the second plurality of outlets in a third direction opposite the second direction, wherein the second and third directions are generally perpendicular to the first direction.

Abstract: A system includes a controller for monitoring a fill level of a container. The controller is configured to receive first vibrational response data relating to a vibrational response of the container in a first state, receive second vibrational response data relating to a vibrational response of the container in a second state, and use the first vibrational response data and the second vibrational response data to identify a change in fill level of the container between the first state and the second state.

Abstract: A bursting capsule, which includes a hollow cavity completely enclosed and delimited by a frangible vessel wall with a rupturing liquid disposed therein; an electrically conductive element disposed on an outside surface of the vessel wall; and a wax coating covering the electrically conductive element, is provided. The bursting capsule is typically part of a sprinkler head, which includes first and second electrical contact points in electrical contact with the electrically conductive element disposed on the vessel wall. The wax coating may completely encapsulate the electrically conductive element and the first and second electrical contact points. Fire protection devices and fire protection systems, which include the bursting capsule, are also provided.

Abstract: A fire suppression system includes an inert gas source to supply inert gas to an enclosure via distribution piping. The system includes a fire suppression nozzle that is installed in the enclosure. The nozzle includes an inlet that connects to the distribution piping and includes a plurality of outlet holes. During discharge of the inert gas, the sound power level from, the nozzle is no greater than 125 dB for a frequency range from 500 to 10,000 Hz for a coverage area up to 32 ft.×32 ft. in compliance with UL 2127. The nozzles disclosed herein are configured such that gas exiting a plurality of outlet holes is balanced.

Abstract: A corrosion monitoring device includes a sensor assembly and a detector circuit. The sensor assembly includes at least one sensor portion disposed in an interior of a pipe in a fire sprinkler system for sensing corrosion of a wall of the pipe. The detector circuit transmits an electrical signal through the at least one sensor portion, monitors an electrical characteristic of the at least one sensor portion based on the electrical signal, compares at least one of the monitored electrical characteristic and a change in the electrical characteristic of the at least one sensor portion to at least one of a predetermined value and a previously monitored electrical characteristic, determines a corrosion status indicative of at least one of a corrosion level and a rate of corrosion of the pipe wall based on the comparison, and outputs an indication of the corrosion status.

Abstract: A corrosion monitoring device includes a sensor assembly and a detector circuit. The sensor assembly includes at least one sensor portion disposed in an interior of a pipe in a fire sprinkler system for sensing corrosion of a wall of the pipe. The detector circuit transmits an electrical signal through the at least one sensor portion, monitors an electrical characteristic of the at least one sensor portion based on the electrical signal, compares at least one of the monitored electrical characteristic and a change in the electrical characteristic of the at least one sensor portion to at least one of a predetermined value and a previously monitored electrical characteristic, determines a corrosion status indicative of at least one of a corrosion level and a rate of corrosion of the pipe wall based on the comparison, and outputs an indication of the corrosion status.

Abstract: A fire suppression nozzle assembly includes a nozzle having a first tube defining an axially extending passageway. The passageway includes a plurality of primary outlets disposed on a sidewall of the first tube. The nozzle also includes a second tube circumscribing the first tube to define a chamber. The primary outlets provide fluid communication between the passageway and the chamber. A sidewall of the second tube has a first set of radially facing secondary outlets axially offset from the primary outlets in a first direction and a second set of radially facing secondary outlets axially offset from the primary outlets in a second direction opposite the first direction. The nozzles disclosed herein are configured such that gas exiting a plurality of outlet holes is balanced.

Abstract: A fire suppression nozzle assembly includes a nozzle having a first tube defining an axially extending passageway. The passageway includes a plurality of primary outlets disposed on a sidewall of the first tube. The nozzle also includes a second tube circumscribing the first tube to define a chamber. The primary outlets provide fluid communication between the passageway and the chamber. A sidewall of the second tube has a first set of radially facing secondary outlets axially offset from the primary outlets in a first direction and a second set of radially facing secondary outlets axially offset from the primary outlets in a second direction opposite the first direction. The nozzles disclosed herein are configured such that gas exiting a plurality of outlet holes is balanced.

Abstract: A corrosion monitoring device includes a sensor assembly and a detector circuit. The sensor assembly includes at least one sensor portion disposed in an interior of a pipe in a fire sprinkler system for sensing corrosion of a wall of the pipe. The detector circuit transmits an electrical signal through the at least one sensor portion, monitors an electrical characteristic of the at least one sensor portion based on the electrical signal, compares at least one of the monitored electrical characteristic and a change in the electrical characteristic of the at least one sensor portion to at least one of a predetermined value and a previously monitored electrical characteristic, determines a corrosion status indicative of at least one of a corrosion level and a rate of corrosion of the pipe wall based on the comparison, and outputs an indication of the corrosion status.