Air Admittance Valves

Where there is a discharge of waste water within any drainage system, it will cause an AAV to open at the ‘Point of Need’ (PON). This is to release a vacuum and allow air to enter the plumbing vent pipe, thus balancing the pressure into the system so the drainage can function correctly.

The Studor vent piping system is commonly known as an active system, rather than a conventional ‘passive’ vent pipe system, because the AAV opens when there is a need. This is described by a concept called “rapidity of reaction or instantaneous reaction”.

Thanks to Studor technology, our range of AAVs react (open) at a very small pressure differential, becoming the preferred technical solution for modern drainage systems.

Using AAVs significantly reduces the amount of materials needed in a plumbing system, increasing plumbing labour efficiency, allowing greater flexibility in the layout of plumbing architecture, and reducing long-term roof maintenance problems associated with conventional vent stack roofing penetrations.

Every Studor valve is tested twice before leaving the factory. Once installed, no maintenance is required. Each Studor product carries a 10 year warranty if used in accordance with the manufacturer's guidelines. Our track record has seen our products installed in some of the most iconic buildings all over the world.