Siphonic Roof Drain System

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.

Siphonic roof drain system.

The innovative component of the siphonic roof drainage system is the specially designed roof outlet which controls the pattern of discharge preventing air from entering the pipework. A siphonic roof drain looks much like a traditional roof drain. This air baffle is engineered and tested to prevent air from entering the piping system at peak flows. Siphonic drainage can be used on membrane concrete and gravel roofs as well as on green roofs with extensive planting.

Siphonic drainage was first introduced in the 1960 s in scandinavia and since then has been used widely across europe including the uk in the far east australasia south africa and the usa. Wh 301 401 501 601 siphonic overflow drain. Wh 300 400 500 600 siphonic primary roof drain. The distinguishing feature of a siphonic roof drain is the air baffle.

When sizing and installing a siphonic system there are a series of guidelines to be followed. 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. Unlike traditional roof drainage systems a siphonic system is designed to operate with the piping completely charged with water during a rainstorm. Many large industrial commercial and retail buildings are now fitted with siphonic drainage which has clear advantages over gravity drainage.

Uv system is the only engineering firm in the united states focused solely on siphonic roof drainage. Wade siphonic drainage design request. Uv system designs and supplies its line of top performing siphonic roof drains to projects throughout the united states canada and mexico. A syphonic drainage system is not only cheaper to construct than a typical roof drainage system especially when a large industrial roof has to be covered but the system s design means there is no need for the pipe pitch or gradients found in typical roof drain piping.