Hydrants, officially called fire hydrants, are a type of fixed fire fighting facilities, which control fuel, insulate fire and eliminate fire. Indoor fire hydrant and outdoor hydrant. The fire fighting system includes outdoor fire hydrant system, indoor fire hydrant system, fire extinguisher system, and some automatic sprinkler system, water gun system, gas fire extinguishing system, fire detection system, water mist system and so on. Fire hydrant mainly for fire engines from the municipal water supply network or outdoor fire water network to implement fire fighting, can also be directly connected to the hose, water gun fire extinguishing. Therefore, indoor and outdoor fire hydrant system is also one of the important fire fighting facilities.
Fire hydrants are separated from the rooms (such as boxes), which are not in accordance with fire regulations, and are not conducive to the timely rescue of firefighters.
The fire hydrant should be placed in the corridor or hall of public space, usually in the space inside the wall, no matter what kind of decoration on the requirements of the eye-catching label (marked "fire hydrant"), and shall not set up obstacles in its front, to avoid the effects of opening the door of the fire hydrant.
