Siphonic roof drainage is not so much a system in terms of a pre engineered product or package.
Siphonic roof drainage system.
The water is sucked or siphoned from the roof down into the drain at high velocity.
Wh 300 pg wh 400 pg siphonic deck drain.
Despite what its name may suggest the process of syphonic drainage does not actually involve the syphoning of water at all.
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.
It is instead a technique of no pitch pipe design used to achieve desired flow from roof drains to point s of discharge.
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.
Unlike traditional roof drainage systems a siphonic system is designed to operate with the piping completely charged with water during a rainstorm.
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 300 400 500 600 siphonic primary roof drain.
A siphonic roof drain has a special insert that acts as an air baffle and anti vortex vane such that only water is drawn off of the roof not air.
Wade siphonic drainage design request.
Wh 301 401 501 601 siphonic overflow drain.