Oatey 39239 1.5" 6 DFU AAV Installation Kit 1-1/2" P-trap, 6" extension tube, PVC threaded adapter & deep box flange

Description

From Plumbing Deals' product listing.

By eliminating the need for a branch vent, Oatey Sure-Vent Air Admittance Valves (AAVs) provide the ideal venting solution for island sinks, remote bathroom groups and remodel jobs. Sensitivity to pressure changes, combined with its ability to consistently open and close, is what distinguishes the Oatey Sure-Vent AAV from all others. Every fixture needs a trap and every trap needs a vent. To prevent sewer gases from being released in a home, a trap is required. A vent keeps the sewer and atmospheric pressures equalized allowing water to drain freely. Sure-Vent AAV's provide the ideal venting solution for island sinks, remote bathroom groups and remodeling jobs by eliminating the need to be connected directly into the stack vent. Sure-Vent AAV's are more economical than installing vent pipes in new construction because they reduce the added need for materials and labor. At zero pressure the Sure-Vent AAV is sealed, ready to react to pressure changes. The Sure-Vent AAV will not allow sewer gas to enter the structure. When water is turned on, a pressure change of -0.01 psi (-0.25" H2O) will cause the Sure-Vent AAV to open, allowing airflow from the room through the protective screening, past the seal and into the DWV system as the arrows indicate. When the water is turned off and pressure equalized, the Sure-Vent AAV returns to the closed zero pressure position. The Sure-Vent AAV seals at 0 psi and above indefinitely. The figure shows the Sure-Vent AAV in a sealed position blocking sewer gasses. When pressure subsides, the Sure-Vent AAV returns to the zero pressure position. For use as a secondary vent One size approved to handle up to 2" vent pipe Opens/closes as needed by building's plumbing system Complies to ASSE Standard 1050 and 1051