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  2. 1,1,1,2,3,3,3-Heptafluoropropane - Wikipedia

    en.wikipedia.org/wiki/1,1,1,2,3,3,3...

    Most fire suppression systems are designed to provide concentration of 6.25-9%. The HFC-227ea fire suppression agent was the first non-ozone-depleting replacement for Halon 1301. [citation needed] In addition, HFC-227ea leaves no residue on valuable equipment after discharge. [2]

  3. Electromagnetic door holder - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_door_holder

    Wall-mounted electromagnetic door holder securing a door in the open position. An electromagnetic door holder (electromagnetic door holder and release or hold-open device, sometimes informally called a mag hold open or electric doorstop) is a simple electromechanical mechanism which can be used to hold a fire door or security door open until given a signal to release.

  4. Fire extinguisher - Wikipedia

    en.wikipedia.org/wiki/Fire_extinguisher

    A British fire extinguisher with ID sign, call point and fire action sign According to the standard BS EN 3 , fire extinguishers in the United Kingdom as all throughout Europe are red RAL 3000 , and a band or circle of a second color covering between 5–10% of the surface area of the extinguisher indicates the contents.

  5. Vehicle fire suppression system - Wikipedia

    en.wikipedia.org/.../Vehicle_fire_suppression_system

    A typical vehicle fire suppression system has five key components: Fire-detecting linear wire or spot sensors, A control panel to detect a fire and alert the operator, Actuators discharge automatically or manually to activate the system, Tanks filled with fire-fighting agent, and; A distribution network of tubes, hoses, and nozzles.

  6. Knox Box - Wikipedia

    en.wikipedia.org/wiki/Knox_Box

    A Knox vault in an academic building A Knox KeySecure, attached inside the cab of a fire engine, holds a high-security key [broken anchor] to open KnoxBox key boxes in the area. A Knox Box is a small, wall-mounted safe that holds building keys for fire departments, emergency medical services, and sometimes police to retrieve in emergency ...

  7. Bromochlorodifluoromethane - Wikipedia

    en.wikipedia.org/wiki/Bromochlorodifluoromethane

    Bromochlorodifluoromethane (BCF), also referred to by the code numbers Halon 1211 and Freon 12B1, is a haloalkane with the chemical formula C F 2 Cl Br.It is used for fire suppression, especially for expensive equipment or items that could be damaged by the residue from other types of extinguishers. [1]

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