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.
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The purpose of an air admittance valve is 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.
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Allows for ventilation of a plumbing system without connecting to the main vent stack.
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When installation of a studor 174.
Studor mini vent for plumbing ventilation.
Oatey in line vent replaces secondary plumbing vents that protect the traps in kitchens and bathrooms.
Air admittance valves aav open and close in conjunction with normal dwv system operation effectively eliminating the need for secondary vent pipes.
The mini vent will vent up to 160 dfus on a branch and 24 dfus on stack.
The studor mini vent air admittance valve provides plumbing ventilation to prevent the loss of water seals in traps without the need for costly roof penetration and vent piping.
An air admittance valve is a 1 way valve designed to allow air to enter the plumbing drainage system when negative pressures develop.