Oatey 39016 Sure-Vent 1.5" to 2" 20 DFU Air Admittance Valve, (Pack of 6 pcs)

Oatey 39016 Sure-Vent 1.5" to 2" 20 DFU AAV w/PVC adapter (Schedule 40). The construction of this product comprises a specific one-way valve, which allows air insight in a drainage system and retains sewer gases inside at the same time. Thought-through characteristics of the given air admittance valve allow to ensure a high-quality ventilation and make the use of a vent extended to open air unnecessary. With the negative pressure developing in the system, the valve allows air to get inside the plumbing drainage, and under the conditions of zero/positive internal pressures the vent is closed and sealed by gravity.

Benefits

• item’s rated 20 DFU’s for applications with max. 2-inch DWV pipes;
• Sweet Spot™ technology opens valve at -0.01 PSI and closes/seals at 0 and above;
• seal is guarded by air inlets screening;
• rubber sleeve protects the valve from debris and ensures grip for installation;
• functionally tested at 1/4 IN H₂O and 30 IN H₂O for trouble-free operation;
• compliant with ASSE Standards (1050 & 1051).