Air Admittance Valve Diagram

Air admittance valves aav are one way vents installed after the trap on the drain line of a fixture. Discover everything you should know about air admittance valves aavs and how you can install one yourself to save time and money. Air admittance valves valves the home depot store finder.

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Air Admittance Valve Studor Vent Definition Installation

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Air admittance valve diagram. A common problem in plumbing remodeling is figuring out how to run new vent lines when access to the existing. Mechanical vents also called cheater vents come in two types. The stack type air admittance valve can also be used as the vent terminal for a waste stack vent. If you need to install an air admittance valve or aav to add pipe ventilation it helps to have plumbing knowledge and the ability to shut off the main water valve to the area if necessary in an emergency.

The maximum height permitted for a waste stack vent having an air admittance valve is also six 6 branch intervals. Click the link to see all the studor air admittance valves available to purchase. Send text message print. In the event that your walls do not leave enough space for any of the above vents then the local code may allow you to opt for an air admittance valve aav.

Features four vents rated at 6 20 160 and 500 dfus for optimized installations sweet spottm technology opens at 001 psi 0. Theyre designed to address negative air pressure in the drain system created when a fixture is drained. This one way valve is designed to allow air into the plumbing when negative pressure is developed from draining. Air admittance valves and check vents the latter being a vent with a check valve.

Air admittance valves aavs or commonly referred to in the uk as durgo valves and in the us as studor vents and sure vent are negative pressure activated one way mechanical valves used in a. The purpose of an air admittance valve is to provide a method of allowing air to enter the plumbing system without the use of a vent extended to open air and to prevent sewer gases from escaping inside a building. Extra info on the air admittance valve. Its in those situations where an air admittance valve can save the day.

Various layouts of acceptable designs are shown in. There are many designs that can utilize the studor aavs. Air admittance valves are mechanical devices that take the place of plumbing vents. How to install an air admittance valve.

Also make sure to check with the local authorities before you start to verify that they. Theyre inexpensive they work they can reduce the number of plumbing vent penetrations at the roof they wont get blocked by frost theyre listed and approved by several listing agencies and they cost way less to install than a plumbing vent.