Mcalpine VPSF-40/50 AIR Admittance Valve 61020045

This air admittance valve is designed for use in soil pipe systems, providing ventilation to prevent negative pressure within the pipework. It is suitable for vertical installation on soil stacks where connection to external venting is limited or impractical.

Typically used in plumbing applications to prevent the siphoning of water traps, the valve allows air into the drainage system without permitting odours to escape. It is a practical component for both new builds and refurbishment projects in domestic and commercial settings.