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The use of underground hydrant in Liaoning fire water crane price
Fire hydrants can be roughly divided into two types: indoor hydrant and outdoor fire hydrant. Indoor hydrant is a kind of fixed fire extinguishing water supply equipment used in buildings. It includes fire hydrants and fire extinguishing boxes. Indoor hydrants and fire extinguishing boxes are usually set up with staircases, corridors and indoor walls.
There are water and water guns in the box and connected with the outlet of the hydrant. Hydrants are connected to fire water supply lines in buildings. Hydrant consists of handwheel, bonnet, stem, car body, valve seat and interface. When in use, according to the opening mode of the fire hydrant box door, the box door is opened with a key or the door glass is broken, and the lock head is twisted to open. If the hydrant does not have an "emergency button", pull out the pulling ring under it, then press the clockwise turn knob, open the door, remove the water gun, press the start button of the water pump, rotate the hydrant handwheel, that is, open the hydrant, lay the water belt to fire.