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Oatey 39221 72 Stack DFU Capacity Straight ABS Schedule 40 Adapter Air Admittance Valve, 2 in. – 3 in. 160 Branch, Black
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Oatey 39221 72 Stack DFU Capacity Straight ABS Features
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Complies to ASSE Standard 1050 and 1051
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For use as a secondary vent
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One size approved to handle up to 4" vent pipe
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Opens/closes as needed by building's plumbing system
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Sweet Spot? technology opens at -0.01 psi and
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Complies to ASSE standard 1050 and ANSI/ASSE 1051
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For use as a secondary vent
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Opens/closes as needed by building's plumbing system
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Use as an air inlet source
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One size approved to handle up to 4-Inch vent pipe
About Oatey 39221 72 Stack DFU Capacity Straight ABS
Product Description Oatey? Sure-Vent? 160 DFU Capacity Air Admittance Valve's one-way valve is designed to allow air to enter the plumbing drainage system when negative pressures develop in the piping system.The purpose of an Air Admittance Valve is to provide a method of allowing air to enter the plumbing drainage system without the use of a vent extended to open air and to prevent sewer gases from escaping into a building. An Air Admittance Valve is a one way valve designed to allow air to enter the plumbing drainage system when negative pressures develop in the piping system. The device shall close by gravity and seal the vent terminal at zero differential pressure (no flow conditions) and under positive internal pressures. From the Manufacturer Oatey products can be found in residential and commercial applications and have achieved excellent brand name recognition with consumers. All products are backed with the highest quality technical and customer support programs in the industry
