Studor 20342 Maxi-Vent Air Admittance Valve

Key features

• Maxi-Vent air admittance valve with push-fit rubber connector creates ventilation that prevents the release of foul air from the drainage system and loss of water seals in traps
• Designed for use as an individual, branch, circuit, or stack vent; capacity of up to 160 DFUs (drain fixture units) on a branch and 500 DFUs on a stack
• Uses gravity to automatically close seal and prevent circulation of unpleasant bathroom or drain odors; exclusive vermin protection system keeps out bugs and foreign objects
• Fits 3- or 4-inch piping; complies to ANSI/ASSE 1050 and 1051; temperature rating of -40°F to 150°F (-40°C to 65.6°C); this style air admittance valve is not recognized as a mechanical vent in the International Building Code
• Screening on the inside and outside of the Maxi-Vent protects the sealing membrane from foreign objects

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