How does the fire hydrant box identify the left and right doors?
Fire hydrant box around the door to see: the legend to identify the fire pipe, to avoid being in charge of building block; but also the local structure, to avoid the unreasonable influence toward the door open after the hydrant outlet angle and connected with the convenient water.
In case of fire, according to the opening of the box door, press the spring door lock, pin automatically exit, opened the box door, take the water gun turn out hose, hose reel, and the interface with the fire hydrant hose interface, pull box km wall switch, the fire hydrant handwheel clockwise the opening direction can undo, sprinkler.
According to the site decision, the main decisive factor is the bolt opening, that is to say, the direction of the inlet pipe!
