Flowplast white air admittance valve white with three solvent weld adaptors for three pipe sizes

32/40/52mm AF32

The FloPlast Air Admittance Valve is designed to allow the free entry of air into the sanitary pipework system without the escape of foul gasses into the building.When installed into sanitary pipework systems conforming to BS EN 12056:2000, the FloPlast Air Admittance Valve not only prevents the loss of water from trap seals due to induced siphonage, but also has the added advantage of providing an early warning indicator to a potential drainage blockage.The AF32 Air Admittance Valve has a universal adaptor to fit to 32mm/40mm/50mm Solvent Waste Pipe. It is produced from white ABS/PVC, and is designed for use with waste pipe conforming to British/European standards connectedt o a solvent cemented pipe adaptor supplied with the product. Approved Document H of the Building Regulations only permits Air Admittance Valves that conform to BS EN 12380. Ventilation and access must be provided to all air admittance valve installations.