What is the difference between an indoor hydrant and an outdoor hydrant?

1, indoor fire hydrant is indoor pipe network to supply water to the fire; The outdoor fire hydrant is the water supply facility of the fire hose network outside the building.

2, indoor hydrant is a valve interface, for factories, warehouses, high-rise buildings, public buildings and ships and other indoor fixed fire facilities, usually installed in the hydrant box, with fire hose and water guns and other equipment used; The outdoor fire hydrant is mainly for the fire truck to draw water from the municipal water supply network or outdoor fire water supply network to put out the fire, and it can also be directly connected to the water hose and water gun.

3. The fire extinguishing method of the indoor hydrant is the artificial water belt connected to the hydrant port to extinguish the fire. In addition, the hydrant box has a hydrant button, which can be pressed to remotely start the fire pump to replenish the hydrant; Outdoor fire water supply pipes can use high pressure, temporary high pressure and low pressure pipes, towns, residential areas, enterprises and institutions of outdoor fire water supply, generally adopt low pressure water supply system, often combined with living, production water supply pipes.