Maxi Vent Air Admittance Valve With Push Fit Rubber Connector White Prevents Sewer Gas And Water Seal Loss For Individual Branch Circuit Or Stack Venting Up To 160 DFUs Easy Installation And Maintenance
✔️ Single unit: push-fit rubber connector for 3 or 4 in pipes
The air admittance valve is a push-fit, rubber-connected vent designed to admit air into the drainage system when pressure drops, preventing trap seals from being drawn and blocking sewer odors. It fits 3- or 4-inch piping and measures 5.25 in tall by 4.875 in diameter, with a temperature rating of -40°F to 150°F. It complies with ANSI/ASSE 1050 and 1051 and includes vermin protection; note that this valve is not recognized as a mechanical vent under the International Building Code.
✅ Fits 3- or 4-inch piping
✅ Branch vent support up to 160 DFUs; stack vent up to 500 DFUs
✅ Push-fit rubber connector for easy installation
✅ Temperature rating -40°F to 150°F (-40°C to 65.6°C)
✅ ANSI/ASSE 1050 and 1051 compliant; vermin protection with membrane screening
✅ Screening on inside and outside protects the sealing membrane
💡 What is an air admittance valve used for in drainage venting, and how does it protect trap seals?
Air admittance valves are handy for venting drainage without running a full vent stack. They admit air when negative pressure appears in the drainage line, helping keep water seals intact while minimizing sewer gas exposure.
- Handy venting option for branch and stack vents
- Prevents trap seals from being drawn out under suction
- Meets ANSI/ASSE 1050 and 1051 standards for approved performance
- Includes vermin protection and membrane screening