Newsdesk

“RainPulse” System Recognition from NBS

Throughout 2010 CGL Systems has been supplying “Rainpulse” to the market and in the September 2010 update from NBS and NBS Plus to its subscribers there was recognition that drainage systems have advanced and alternatives are in the market.

Under the “Rainwater Drainage Systems” section R10 a new specification clause 130 has been added which is “Pressure Assisted Rainwater Drainage System”.

In the NBS R10 Guidance Note 9.2 it describes “Pressure Assisted Systems” as “These systems use intermittent full-bore flow.  During heavy rainfall events, full-bore flow occurs in a series of relatively short bursts, rather than continuously.  Specially designed outlets, with an outlet discharge diameter identical to that of the downpipe, must be used to create full bore flow in downpipes.  When the water level in the gutter falls, the flow reverts to the gravity pattern, where the pipe contains mostly air.  The pipework layout is usually simpler than in a fully syphonic system and long horizontal pipe runs inside the building are unnecessary.  Each outlet in a gutter is independently connected to a downpipe so that the system is more forgiving of localised blockages.  Adjacent outlets will run at full-bore flow more frequently to compensate, meaning that catastrophic overflow is less likely.”

As a full-bore pipe takes rainwater away considerably quicker than a gravity pipe full of air, the system brings efficiency, cost savings and minimises risk to your building.

For a fully detailed specification click here or alternatively if you are a member of NBS Plus the system can be found there.

CGL Systems will be delighted to design “Rainpulse” our “Pressure Assisted Rainwater System” into your building.  Please send Stuart McMillan a quick email by clicking here. stuart.mcmillan@cglsystems.co.uk