Oatey 39223 500 Stack DFU Straight PVC Schedule 40 Adapter AAV, 3 – 4 160 Branch, Black/White

The Oatey Sure-Vent 500 DFU Capacity Air Admittance Valve features a one-way valve that is specifically designed to allow air to enter the plumbing drainage system in instances where negative pressures occur within the piping system. This innovative valve eliminates the need for a vent to extend to open air, while also preventing sewer gases from escaping into the building.

This Air Admittance Valve is equipped with a one-way valve that opens to allow air into the plumbing drainage system when negative pressures are detected in the piping system. The valve is designed to close by gravity and seal the vent terminal when there is zero differential pressure (during no flow conditions) and under positive internal pressures.

Oatey products, including the Sure-Vent 500 DFU Capacity Air Admittance Valve, are widely used in both residential and commercial applications, and have gained a strong reputation among consumers for their excellent quality. Every Oatey product is supported by top-notch technical and customer support programs, making them a trusted choice in the industry. The Sure-Vent valve complies with ASSE Standards 1050 and 1051, making it suitable for use as a secondary vent. It is approved for use on vent pipes up to 4 inches in size, and can open and close as needed by the building's plumbing system.

With a venting capacity rated at 500 DFU's for DWV systems that are 4 inches and smaller, the Oatey Sure-Vent 500 DFU Capacity Air Admittance Valve is a reliable and efficient solution for air admittance in plumbing drainage systems.

product information: