McAlpine 40mm–43mm Air Admittance Valve – 1.5″ Multifit Compression Vent

McAlpine 40mm–43mm Air Admittance Valve – 1.5″ Multifit Compression Vent

Features

The McAlpine 40mm–43mm Air Admittance Valve (AAV) provides a compact and efficient solution for ventilating waste systems. Designed with a 1.5″ multifit compression socket, it fits waste pipes between 40mm and 43mm securely. This A1-rated valve allows vital air to enter the drainage system to prevent vacuum siphoning, while effectively blocking foul odors from escaping. With an air flow capacity of 3 l/s, it ensures smooth drainage performance in a clean, white finish.

• Versatile Fit: Features a multifit compression socket compatible with pipe sizes from 40mm to 43mm.
• Reliable Performance: A1 rated to ensure consistent and high-quality ventilation.
• Odour Protection: Allows air to enter the system while successfully containing foul smells.
• Efficient Airflow: Designed with an air flow capacity of 3 l/s for effective drainage.
• Clean Look: Finished in a neutral white colour to blend with standard plumbing.

Technical

Brand: McAlpine

Part Number: VP2W

Pipe Compatibility: 40mm to 43mm (1.5″ compression)

Air Flow Capacity: 3 l/s

Rating: A1

Colour: White

Details

Poorly ventilated waste systems often create a vacuum during discharge, which pulls the water out of your traps and allows unpleasant sewer gases to enter your home. Finding a space-saving solution that can be fitted onto existing 40mm or 43mm waste pipes without requiring major plumbing alterations is often difficult.

The McAlpine AAV solves this by providing a simple, compression-fit valve that stops vacuum siphoning immediately. Because it is designed for standard 1.5″ pipes and includes a multifit socket, you can install it quickly without specialized tools. It keeps your indoor environment fresh and ensures your drains flow freely.