Oatey 500 DFU Air Admittance Valve 3-4 Inch PVC Schedule 40 Adapter | ASSE 1050 & 1051 Compliant

The Oatey 500 DFU Air Admittance Valve is a crucial component for maintaining proper plumbing system ventilation. Designed to comply with ASSE Standard 1050 and 1051, this valve acts as a secondary vent, opening and closing automatically as needed by the building's plumbing system. It is rated to handle up to a 4-inch vent pipe and is suitable for venting DWV (Drain, Waste, Vent) systems up to 4 inches and smaller, with a capacity of 500 DFU (Drainage Fixture Units).

Constructed from durable Polyvinyl Chloride (PVC), this air admittance valve ensures reliable performance and longevity. Its design allows it to open when negative pressure builds in the system, releasing sewer gases and preventing trap seals from being siphoned. Once pressure normalizes, the valve closes, preventing odors from escaping into the building. This functionality is vital for preventing plumbing issues and maintaining a healthy indoor environment.

For Indian homeowners and plumbers, the Oatey Air Admittance Valve offers a reliable solution for secondary venting needs, ensuring compliance with plumbing codes and preventing common issues like trap seal siphoning and sewer gas odors. Imported directly from authorized US retailers and authorized brand partners, this valve guarantees authentic quality and performance. All customs duties and GST are included in the displayed price, with delivery expected within 19-21 days via ExpressBox tracked shipping.