McAlpine VP50P Push-Fit Air Admittance Valve, Grey

The McAlpine VP50P Push-Fit Air Admittance Valve (AAV) is an essential component for modern above-ground drainage systems, designed to provide efficient ventilation where a conventional soil vent pipe cannot be installed. Its primary function is to admit air into the drainage system under conditions of reduced pressure, preventing the dangerous siphoning of water from appliance traps and ensuring the system operates safely and quietly. This valve is a critical solution for internal venting, allowing waste pipes to be terminated inside buildings without the need for external roof penetration.

Engineered with a robust grey housing, this AAV features a convenient push-fit connection for quick, secure, and tool-free installation on standard 50mm soil pipes. The integrated EasyFit mount simplifies fitting, saving time and effort for both professional plumbers and competent DIY installers. With a high air flow capacity of 15.5 litres per second, it provides ample ventilation for a typical bathroom or kitchen drainage setup, responding swiftly to maintain balanced pressure within the pipework.

Crafted from durable materials, the valve is built to deliver reliable, long-term performance in residential and commercial properties. Its compact design ensures it can be discreetly installed within cupboards, service ducts, or boxing, maintaining a neat and tidy appearance. By preventing foul odours from escaping and protecting trap seals, the McAlpine VP50P safeguards property hygiene and comfort, making it an indispensable part of any compliant internal drainage solution.