How to distinguish between fire pump adapter and outdoor fire hydrant from the appearance
The difference between fire pump adapter and outdoor fire hydrant:The outdoor fire hydrant is connected with the municipal water supply. When the building is in a fire, the fire engine can receive water from the building to extinguish the fire.Outdoor fire pump combination device and indoor fire pipes, sprinkler pipe connection, when the fire, fire from the fire hydrant water or other circumstances, fire engines will interface with the fire pump is connected with the high pressure fire pump, through the combination of device to indoor fire tube and a spray pipe fire with fire with water.
See is rough old heavy outdoor fire hydrant from the appearance, is usually a single layout, fire pump adapter is slim, pass. In addition from the interface from the judgment: the fire pump adapter with 2 DN65 interface; the outdoor fire hydrant has 2 DN65 ports and 1 DN100 ports.
Fire pump adapter: when indoor fire pump failure or in case of fire, the indoor fire water shortage, fire from the outdoor fire hydrant, water tank, natural water, through the water pump adapter to water to indoor fire water supply network. Interface diameter: DN65, DN80 two types: ground, underground type, wall type setting should be according to the number of indoor fire water calculation, each pump flow in 10~15L/s, generally not less than two. The installation forms of outdoor fire hydrant can be divided into ground type and underground type. According to the number one hydrant outlet type, dual port type and three outlet type etc.. The outdoor fire hydrant is usually installed in municipal water supply pipe network, according to the design code of municipal water pipe network of fire hydrant, fire hydrant spacing should not be more than 120 meters, so it is not less than the number of valves in water supply network, is one of the important facilities in the water supply pipe network.
