Methods for managing a hazardous fluid within a pipeline and within a storage facility, and in particular for managing a potential or actual leak of the hazardous fluid. Such methods include the detection of such an event by one or more sensors, and the containment and the mitigation of the event.

A method for delivering water through a fire hydrant is disclosed and includes unlocking a sprinkler cap control lock on the fire hydrant, removing the sprinkler cap control lock to access an operating nut of the fire hydrant and activating the operating nut to deliver water through a plurality of sprinkler ports in at least one of a plurality of caps on the fire hydrant. Also disclosed are fire hydrant with a lubricant channel and a method of lubricating a fire hydrant operation nut. Also disclosed is a fire hydrant that does not need a lubricant disposed between the operation nut and the fire hydrant body due to an operating nut sleeve being disposed between the operation nut and the fire hydrant body.

Methods for managing a hazardous fluid within a pipeline and within a storage facility, and in particular for managing a potential or actual leak of the hazardous fluid. Such methods include the detection of such an event by one or more sensors, and the containment and the mitigation of the event.

Methods of, and apparatus for, storing and transporting a hazardous fluid, such as a combustible fuel, include methods and means, respectively, for: (a) treating the fluid to reduce its hazardous condition; (b) storing and/or transporting the treated fluid in such a manner that the risk of its hazardous condition remains reduced; (c) thereafter retreating the fluid to restore it to its original hazardous condition so that the fluid may be used in its restored condition. The hazardous fluid may be treated by adding a substance to, or removing a substance from, the fluid, or by changing the state of the fluid. For example, if the fluid is a fuel, it may be treated by cooling it to near or below its freezing temperature to reduce its combustibility, volatility, explosivity and/or ease of ignition.