A water and electrical supply system for firefighting may provide both a supply of water and electrical power that are usable by a load device(s), such as an electric pumping system or a battery charging system of a firefighting vehicle such as a fire engine. An electrical connector may be mounted in a connector housing, which may be supported by a hydrant. The electrical connector may be de-energized in a default non-use state.

A nozzle box unit forming a component of an anechoic chamber fire suppression system is provided. The nozzle box unit includes a pusher assembly that is configured to dislodge a piece of acoustic material positioned in front of the nozzle box so as to permit discharge of a fire suppressing material from a nozzle mounted inside the nozzle box unit into the anechoic chamber.

Sectional fire protection systems and methods for the protection of an attic space are provided. A fluid control thermal detection device is located above a ceiling base and one or more open fluid distribution devices are disposed, spaced and connected to the fluid control thermal detection device for receipt of firefighting fluid from the fluid control thermal detection device to protect the attic space with a desired fluid density and total system flow demand.

Sectional fire protection systems and methods for the protection of an attic space are provided. A fluid control thermal detection device is located above a ceiling base and one or more open fluid distribution devices are disposed, spaced and connected to the fluid control thermal detection device for receipt of firefighting fluid from the fluid control thermal detection device to protect the attic space with a desired fluid density and total system flow demand.

The present invention discloses a Fire-fighting water cannon comprising: a first motor assembly including a first housing, a first stator assembly, a first rotor assembly and a central shaft; both ends of the first housing are respectively provided with a first end cover and a second end cover, the first end of the first stator assembly is connected with the second end cover, the first rotor assembly is sleeved on the outside of the first stator assembly, and the first rotor assembly is rotatably connected with the first housing; the cannon head assembly including a first cannon head and a second cannon head, the first cannon head is connected with the first stator assembly, the second cannon head is sleeved on the outside of the first cannon head, and the second cannon head is threadedly connected with the first rotor assembly, the first cannon head is provided with a first anti-rotation device; the cannon core assembly is arranged on the central axis and cooperates with the cannon head assembly. With this arrangement, the switching of the spray state of the Fire-fighting water cannon is controlled by electrical signals, which makes the switching easier and faster, the spray state of the Fire-fighting water cannon can be accurately controlled to meet the needs of various working environments and achieve the effect of saving energy and resources.

A rotating conduit assembly for a fire suppression system includes a first conduit configured to fluidly coupled with a fluid source, a second conduit, and a rotatable coupling. The rotatable coupling is configured to rotatably couple the first conduit with the second conduit. The rotatable coupling includes a first annular member fixedly coupled with the first conduit, a second annular member fixedly coupled with the second conduit, an inner sleeve, an annular seal, and a rotational actuator. The inner sleeve extends between the first annular member and the second annular member. The annular seal is disposed between the inner sleeve and the second annular member and is configured to provide a fluidic seal between the inner sleeve and the second annular member. The rotational actuator is disposed radially outward from the inner sleeve and configured to rotate the first annular member relative to the second annular member.

A rotating conduit assembly for a fire suppression system includes a first conduit configured to fluidly coupled with a fluid source, a second conduit, and a rotatable coupling. The rotatable coupling is configured to rotatably couple the first conduit with the second conduit. The rotatable coupling includes a first annular member fixedly coupled with the first conduit, a second annular member fixedly coupled with the second conduit, an inner sleeve, an annular seal, and a rotational actuator. The inner sleeve extends between the first annular member and the second annular member. The annular seal is disposed between the inner sleeve and the second annular member and is configured to provide a fluidic seal between the inner sleeve and the second annular member. The rotational actuator is disposed radially outward from the inner sleeve and configured to rotate the first annular member relative to the second annular member.

The present invention relates to an integrated bracket for fixing a sprinkler reducer, and more particularly, to an integrated bracket for fixing a sprinkler reducer, in which left and right portions of a bar-shaped steel frame structure for a sprinkler bracket are vertically bent, tightening/coupling parts are provided at two opposite ends of the steel frame structure, and a fixing unit having a new structure and serving as a middle bracket is integrated with a central portion of the steel frame structure, such that the single bar-shaped steel frame structure may perform a function of fixing the sprinkler reducer and coupling a ceiling steel frame.

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.

A sprinkler reducer fixing bracket that is capable of allowing a reducer to be adjusted in height, especially in a state where the reducer is coupled thereto. The sprinkler reducer fixing bracket includes a body fitted to a horizontal bar, a hook member whose one side is rotatably coupled to the body by means of a shaft member, a locking shaft disposed on the hook member and having a cam portion adapted to push the body to allow the hook member to move to a position for fixing the reducer up and down, and U-shaped first and second locking pins adapted to allow the hook member to maintain the fixed position of the reducer in the up and down directions.