FloPlast External/Internal Air Admittance Valve 110mm
This advert is located in and around Christchurch, Dorset
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Advert Description
This is a top quality air admittance valve made by FloPlast, colour Grey. Model AX110G. It can be used externally. It is a useful device only allowing air into a soil pipe system when a vacuum is formed but will not allow air out if positive pressure is present. Most authorities allow them indoors when it is not possible to fit a conventional vent when one is needed to maintain water in sink, shower or bath traps, for example, when toilets are flushed creating negative pressure in a system. There are a number of videos on YouTube which explain how they work and the benefits of them in certain circumstances. This model will Push-fit into a 110mm pipe or be glued with solvent into an 82mm one. A new one can be over £50.