Siphonic Roof Drainage System

Instead syphonic drainage technology employs the use of a gravity induced vacuum pump to remove water at high velocity from multiple roof drains at once.

Siphonic roof drainage system.

Wade siphonic drainage design request. The water is sucked or siphoned from the roof down into the drain at high velocity. Wh 300 400 500 600 siphonic primary roof drain. Wh 300 pg wh 400 pg siphonic deck drain.

This can only be achieved by assuring that no air is sucked in with the rain water and no bubble vortexes formed in the pipe system. Siphonic drainage systems operate with specially designed flat roof drains which unlike gravity drainage systems are configured to work with completely full pipes degree of fill h d 1 0. By contrast a fully engineered siphonic roof drainage system contains an anti vortex plate that acts as a baffle and prevents air and debris from entering the piping system at full flow allowing the pipes to completely fill up with water. Wh 301 401 501 601 siphonic overflow drain.

This pump requires no external power as it is activated by rainfall filling the drain beyond its anti vortex plate at which point air flow to the pipe is cut off. Despite what its name may suggest the process of syphonic drainage does not actually involve the syphoning of water at all. It is instead a technique of no pitch pipe design used to achieve desired flow from roof drains to point s of discharge. Unlike traditional roof drainage systems a siphonic system is designed to operate with the piping completely charged with water during a rainstorm.