The principle of the siphon roof rainwater system relies on the design of special rain heads to separate air from water, thereby allowing rainwater to be collected vertically.

The tube is in a full flow state. When the water in the upright tube reaches a certain capacity, suction action occurs. During the rainfall, due to the continuous suction action, the entire system can remarkably quickly drain the roof rainwater.Pipes are the most critical component of the siphon roof rainwater drainage system, necessitating a guarantee of the system's safety, reliability, and efficient, continuous operation. As a specialized drainage system, the pipes in an siphon system must ensure complete密封性 and comprehensive fire prevention measures, while also striving to minimize noise, absorb vibrations, withstand external impacts, and to a great extent, accommodate deformation caused by temperature changes.