McAlpine VP100E 110mm Air Admittance Valve for Internal & External Use

McAlpine VP100E 110mm Air Admittance Valve for Internal & External Use

Features

The McAlpine VP100E Ventapipe provides an efficient solution for soil pipe ventilation. Designed to fit 4″/110mm pipes, this A1-rated air admittance valve (AAV) allows air to enter the drainage system, preventing the vacuum that typically siphons traps dry. It features a dual-fit synthetic rubber finger seal for a secure connection and a built-in stainless steel mesh to protect the air intake from debris. While built for versatility, McAlpine recommends internal installation where possible. This durable valve operates effectively in temperatures ranging from -20°C to +60°C and meets BS EN 12380:2002 standards.

• Reliable Ventilation: Prevents siphoning in drainage systems with an air flow capacity of 40 l/s.
• Versatile Installation: Suitable for 4″/110mm soil pipes and can be installed above or below the flood level of connecting appliances.
• Durable Design: Features a stainless steel mesh in the air intake and a robust synthetic rubber finger seal.
• Certified Performance: A1 rated and fully compliant with BS EN 12380:2002.
• Weather Resistant: Designed to function in temperatures from -20°C to +60°C.

Technical

• Brand: McAlpine
• Model/MPN: VP100E
• Pipe Compatibility: 4″/110mm
• Air Flow Capacity: 40 l/s
• Compliance: BS EN 12380:2002 (A1 rated)
• Temperature Range: -20°C to +60°C
• Color: Black
• Installation Note: McAlpine recommends internal installation.

Details

Unpleasant odors and slow-draining water are often the result of poor drainage ventilation. When a system lacks adequate airflow, it creates a vacuum that pulls water out of traps, allowing sewer gases to enter your building. Installing traditional roof vents can be complicated, expensive, and sometimes impossible depending on your roof structure.

The McAlpine VP100E solves these ventilation problems without the need for roof penetrations. By allowing air into the system while preventing gases from escaping, it maintains the water seal in your traps. Its robust, A1-rated construction ensures long-term performance, whether you mount it internally or externally. It is a professional-grade fix that restores proper drainage function and keeps your indoor air fresh.