Studor 20342 Maxi-Vent Air Admittance Valve with Push-Fit Rubber Connector, White

Product Description The Studor Maxi-Vent Air Admittance Valve (AAV) is an accepted alternative to replace all forms of conventional stack venting, utilizing active air pressure control, allowing the air to enter the system at the point of need. The Maxi-Vent admits air under condition of reduced pressure in the discharge pipes and prevent water seals in traps from being drawn; thus contributing to the ventilation of the main drain to which the discharge stacks incorporating the Maxi-Vent are connected. Fits 3- or 4-inch connections. Dimensions: 5.25-inch vent height x 4.875-inch vent diameter. Rubber construction with a temperature Rating of -40 to 150 deg F. From the Manufacturer This advanced AAV protects the trap seals in the drainage system by allowing the intake of air, so a soil pipe can maintain the right level of pressure within the drainage system.

• 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