Abstract: A network-type temperature-controlled hanging extinguishing system includes: a main fire-fighting pipe which has at least one fire-extinguishing medium support port; at least one fire-extinguishing medium pressure bearing tank communicated with the main fire-fighting pipe; at least one fire sprinkler valve which is communicated with the main fire-fighting pipe and includes a memory alloy part adapted for controlling opening and closing a valve body; and at least open nozzle which is communicated with the fire sprinkler valve, such that when the fire sprinkler valve is opened, the fire-extinguishing medium is sprayed, and when the fire sprinkler valve is closed, the fire-extinguishing medium is stopped spraying. An amount of the fire-extinguishing medium pressure bearing tanks is different from that of the open nozzles; a user is able to select an appropriate amount of fire-extinguishing medium pressure bearing tanks as required to reduce the manufacturing, assembly and maintenance cost of the entire system.

Abstract: A network-type temperature-controlled hanging extinguishing system includes: a main fire-fighting pipe which has at least one fire-extinguishing medium support port; at least one fire-extinguishing medium pressure bearing tank communicated with the main fire-fighting pipe; at least one fire sprinkler valve which is communicated with the main fire-fighting pipe and includes a memory alloy part adapted for controlling opening and closing a valve body; and at least open nozzle which is communicated with the fire sprinkler valve, such that when the fire sprinkler valve is opened, the fire-extinguishing medium is sprayed, and when the fire sprinkler valve is closed, the fire-extinguishing medium is stopped spraying. An amount of the fire-extinguishing medium pressure bearing tanks is different from that of the open nozzles; a user is able to select an appropriate amount of fire-extinguishing medium pressure bearing tanks as required to reduce the manufacturing, assembly and maintenance cost of the entire system.

Abstract: A double-switched automatic sprinkler valve in a field of automatic controlling devices for cooling and fire fighting is disclosed. A memory alloy, sleeved outside a manual adjusting rod at an upper part of a valve lid, opens and closes a valve according to temperature changes. The valve can also be opened and closed by rotating the manual adjusting rod. A piston is provided within a valve body. A bias spring, provided at an internally upper part of a valve cover, has an upper part resisting against an internally upper part of the valve cover. A movable rod, a magnetic loop assembly and a magnetic loop sheath together are sleeved outside a piston barrel. The manual adjusting rod is rotated into a middle hole of the movable rod. A heat concentrating cover is connected to the manual adjusting rod via rotating.

Abstract: A heat concentrating type self-operated automatic fire valve is characterized in that the first piston is provided on a top of the water inlet channel in the valve body, the piston cover is compressed on a circumferential periphery of the first piston; a pressurizing channel is provided on a center of the first piston; a first pressure relief channel is provided on a center or a circumferential periphery of the piston cover; the first pressure relief channel on the piston cover is communicated with the second pressure relief channel on the valve body; a magnetic pillar unit is sealedly provided on an upper portion of the valve core, and the second piston is provided on a lower portion of the valve core; a magnetic ring sleeve unit is sleeved on the valve-core sleeve, and a magnetic ring unit is provided in the magnetic ring sleeve unit.

Abstract: A heat concentrating type self-operated automatic fire valve is characterized in that the first piston is provided on a top of the water inlet channel in the valve body, the piston cover is compressed on a circumferential periphery of the first piston; a pressurizing channel is provided on a center of the first piston; a first pressure relief channel is provided on a center or a circumferential periphery of the piston cover; the first pressure relief channel on the piston cover is communicated with the second pressure relief channel on the valve body; a magnetic pillar unit is sealedly provided on an upper portion of the valve core , and the second piston is provided on a lower portion of the valve core; a magnetic ring sleeve unit is sleeved on the valve-core sleeve, and a magnetic ring unit is provided in the magnetic ring sleeve unit.