First, the concept of fire hydrant
Fire hydrant, officially known as fire hydrant, a fixed fire fighting tool. The main role is to control combustibles, to isolate combustion aids, and to eliminate sources of ignition. Fire protection systems include outdoor fire hydrant systems, indoor fire hydrant systems, fire extinguisher systems, and some also have automatic sprinkler systems, water cannon systems, gas fire extinguishing systems, fire detection systems, and water mist systems. The fire hydrant is mainly used for fire fighting to obtain water from the municipal water supply network or the outdoor fire water supply network. It can also be directly connected to the water belt and the water gun to extinguish the fire. Therefore, the outdoor fire hydrant system is also one of the important fire protection facilities for fire fighting.
Second, the type of fire hydrant
1.Indoor fire hydrant
The indoor fire hydrant is the indoor pipe network to supply water to the fire site. The interface with valves is an indoor fixed fire-fighting facility for factories, warehouses, high-rise buildings, public buildings and ships. It is usually installed in fire hydrant boxes, and fire hoses and water guns. Supporting the use of. A decompression type fire hydrant is one of them.
2. Outdoor fire hydrant
The outdoor fire hydrant is a water supply facility installed on the fire water supply pipe network outside the building. It is mainly used for the fire truck to take water from the municipal water supply network or the outdoor fire water supply network to carry out fire fighting. It can also directly connect the water belt and the water gun to extinguish the fire.
3. Rotating fire hydrant
The rotating fire hydrant is an indoor fire hydrant that the body can rotate 360o horizontally with respect to the base connected to the water inlet pipe. It has the characteristics of relative rotation between the plug and the base, so it can be installed in the ultra-thin box, making it possible to thin the box. When the fire hydrant is not in use, the plug outlet can be rotated to be parallel with the wall to close the door; when in use, the plug outlet can be screwed out to the vertical outdoor fire hydrant, and the water can be connected. Belt for easy operation.
4. Underground fire hydrant
The underground fire hydrant is an outdoor underground fire water supply facility. It is used for water supply to fire trucks or directly connected to water hoses and water guns for fire fighting. It is a special facility for outdoor fire water supply. Installed in the underground, does not affect the city, the city. It consists of components such as body, elbow, valve seat, valve disc, drain valve, valve stem and interface. Underground fire hydrants are essential fire-fighting water supply devices for cities, factories, mines, power stations, warehouses, terminals, residential and public places. In particular, areas with less urban areas and fewer rivers need to be installed. The product has the same structure, reliable performance and convenient use. When using underground fire hydrants, there should be obvious signs. Underground fire hydrants are more common in cold areas.