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How does the Studor Air Admittance Valve work?

April 26, 2017admittance air studor valve

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How does the Studor Air Admittance Valve work?

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A. The Studor Air Admittance Valve (AAV) is a one-way valve that allows air to enter the plumbing drainage system when fixtures discharge. The valve closes by gravity when discharge is completed and under no flow conditions preventing sewer gas from escaping into the valve.