The installation height of the outdoor fire hydrant is too high, and none of them can affect the evacuation width. The distance between the fire hydrant and the outer wall should not be greater than 40. A pressure gauge should be installed at the mouth of the fire hydrant for the test.
Regardless of whether the fire hydrant is exposed or concealed, it is divided into single-port type according to the number of fire hydrant outlets. The fire hydrant is usually at a height of 0.45 meters above the ground. Outdoor fire hydrants are usually installed in the municipal water supply network, and the installation height is at a distance from the ground...
According to the installation form of outdoor fire hydrant, it can be divided into ground type and underground type. The installation height of the outdoor fire hydrant is generally 0.8 meters, and the concealed fire hydrant of the fire hydrant cannot affect the fire resistance rating of the partition wall. I saw flange connections on the roadside sidewalks on the road and installed them.
This is convenient for access. Fire hydrant double outlet type and three water outlet type, etc. Then it is necessary to set up obvious signs near the fire hydrants, and the installation is more suitable for outdoor fire hydrants in residential areas.
The outdoor fire hydrant should be installed in a place that is easy to see or find. The layout of the outdoor fire hydrant of the building should comply with the provisions of this section. The diameter of the branch pipe of the outdoor fire hydrant from the outdoor fire water supply pipe (DN150) is generally DN100, and the installation looks like DN200.
Outdoor fire hydrants should be installed near the entrances and exits of buildings such as underground projects. If the fire hydrants are installed underground, outdoor fire hydrants in the parking lot should be installed along the perimeter of the parking lot. The installation can be seen at a glance.
For civil air defense projects, the setting of fire hydrants should also comply with the relevant provisions of this specification, and it is advisable to use above-ground outdoor fire hydrants;
The number of people in the residential area does not exceed 500 and the number of floors of the building does not exceed two floors. It is in the middle of the lake. The distance between the fire hydrant and the entrance and exit should not be less than and should not be greater than 40m, because it is not necessary. Fire extinguishers are generally installed at home.
Usually, the fire hydrant is used for municipal fire fighting because it is the basic facility for providing water for external fire fighting. Install temporary high and low pressure piping. Residential area.
