What are the functions of landing valves in fire fighting system?

- located at stairs escape roots of the building.

- Wet or dry stand pipe

- High flow rates & high pressure

- Dedicated for fire fighting men usage

Its a simple valve like our water tab when you open it you'll get water so the fire department people connect their water hose to that valve to get water to extinguish fire. 

Its for stair case area to be connected by fire department when needed. It can b dry or wet