In addition to the obvious signs of indoor fire hydrants, its fire hose reels and portable water hoses should also be set with relatively obvious fixed signs. When indoor fire hydrants need to be installed concealed due to aesthetic requirements, there should be obvious signs and should be easy to open and use. The water outlet direction of the fire hydrant outlet should be downward or at a 90° angle to the wall on which the fire hydrant is set, and the hydrant outlet should not be installed on the side of the door shaft.

The location of the fire hydrant in the building shall meet the requirements of fire fighting and shall meet the following requirements:

1. Indoor fire hydrants should be located in the stairwell and its rest platform, front room, aisle, etc., which are clearly accessible and convenient for fire fighting.

2. The indoor fire hydrant of the residence should be set in the stairwell and its rest platform.

3. The setting of fire hydrants in the garage should not affect the passage of cars and the setting of parking spaces, and the opening of fire hydrants should be ensured.

4. Fire hydrants set in the same stairwell and on different floors nearby should have the same plane position.

5. The indoor bolt of the cold storage should be set in the hall or stairwell at room temperature.

Indoor fire hydrant is a relatively important fire-fighting equipment. Generally, when it is equipped with automatic sprinkler system, water spray fire-extinguishing system, foam fire-extinguishing system or fixed fire monitor fire-extinguishing system, one or more automatic water fire-extinguishing systems are fully integrated. During protection, when the height of a high-rise building is not higher than 50m and the design flow rate of the indoor hydrant system is higher than 20L/s, the design flow rate of the indoor hydrant system can be reduced by 5L/s according to the regulations; the design flow rate of the indoor hydrant system in multi-storey buildings can be reduced by 50% But it should not be less than 10L/s.