LavaTap 110mm Air Admittance Valve – Female Push Fit & Solvent Weld Fitting for Soil Vent Pipes – Internal External Use – Odour Prevention Design

• Dual Fit Connection: Compatible with push-fit and solvent-weld systems. Rubber Lining Ensures Fast, Tool-Free Installation on 110mm Male Pipe
• Female Socket Fitting: Accepts 110 mm male pipe ends for a watertight joint in new builds or retrofits without extra adaptors
• Odour & Trap-Seal Protection: One-way air valve opens under negative pressure to equalise airflow, then closes to block sewer gases and preserve water seals
• Maintenance-Free Reliability: All-mechanical design with no moving parts to service, delivering silent, trouble-free performance year after year
• Easy Vertical Installation: Installs in minutes—simply push into place in a ventilated, accessible spot at least 200 mm above the highest flood level
• Internal or External Use: Low-profile body suits kitchen islands, loft conversions, basements, and multi-storey stacks where roof venting is impractical

The LavaTap 110mm Air Admittance Valve is a compact, maintenance-free venting solution designed for use in UK soil and waste systems. Featuring a female socket with a built-in rubber seal, it allows for a simple slide-on installation with both push fit and solvent weld pipe systems—no cement or tools required. This one-way valve opens automatically when negative pressure occurs in the drainage system, allowing air in to prevent trap water from being pulled away. It then closes tightly to block odours and sewer gas from entering your home. With no moving parts, it operates silently and reliably over time. Ideal for use where roof venting is impractical—such as basements, kitchen islands, or multi-storey buildings—the LavaTap valve must be installed vertically, in a ventilated, accessible location, at least 200 mm above the flood level of the highest connected fixture. A reliable choice for modern plumbing.